Sand Rammer Base
SAND TESTING
Model 42100
Sand Rammer
The Sand Rammer is used to prepare a standard AFS 2 in. x 2 in. (Metric 50 mm x 50 mm) cylindrical sand specimen for compression, shear, splitting, deformation and tensile tests. In the ceramics industry, the Sand Rammer can also be used to determine the compactability of standard molding sands.
Sand Rammer
The Sand Rammer is used to prepare a standard AFS 2 in. x 2 in. (Metric 50 mm x 50 mm) cylindrical sand specimen for compression, shear, splitting, deformation and tensile tests. In the ceramics industry, the Sand Rammer can also be used to determine the compactability of standard molding sands.
Tube Filler Accessory
The Tube Filler Accessory assists in filling the specimen tube for compactability tests. It assures that properly riddled sand fills the specimen tube from a standard and fixed distance. Utilized With: Sand Rammer (Model 42100), Digital Pneumatic Sand Squeezer (Model 42160) and Pneumatic Sand Squeezer (Model 42117)
Sand Rammer Pedestal
Rowell Flowability Tester
The Rowell Flowability Tester is used to determine the flowability of molding sand by testing the sands ability to tightly compact into deep pockets on pattern. Sands that do not have adequate flowability typically result in low mold density and can be the cause of casting defects.
Transverse Core Box Strength Accessory
The Transverse Core Box Strength Accessory is used with the Sand Rammer, Model No. 42100, to make standard transverse sand specimens bonded with air set or core oil type binders. The kit includes tooling to form the transverse sand specimen, special rammer foot and, if required, three dryer plates for baking the rammed sand specimens. The prepared sand specimens are used in the Electronic Universal Sand Strength Machine, Model No. 42104 to determine cold transverse strength.
Hot Tensile Core Box Accessory
The Hot Tensile Core Box Accessory is used with the Sand Rammer, Model No. 42100 to prepare standard tensile dog bone specimens bonded with air set or core oil type binders. The kit includes tooling to form the tensile specimen, special rammer foot and if required, three dryer plates for baking the rammed sand specimens. These specimens are used in the Electronic Universal Sand Strength Machine, Model No. 42104 and the Cold Tensile Strength Accessory, Model No. 42104C to determine cold tensile strength.
Tensile Core Box Accessory (9 Cavity)
The Tensile Core Box is used to make standard specimens for tensile strength testing using self-curing (air set) sands. This core box molds nine dog bone sand samples simultaneously. It consists of three, 3-cavity core boxes inside of a hard wood frame. A strike off bar is included.
Transverse Core Box Accessory (9 Cavity)
The Transverse Core Box Accessory is used to make standard specimens for transverse strength testing using self-curing (air-set) sands. Three, 3-cavity core boxes are inside the hard wood frame which makes a total of nine dog bone sand samples that can be molded simultaneously. AFS specimen dimensions are 8 in. x 1 in. x 1 in. and metric specimen dimensions are 22.4mm x 22.4mm x 175mm.
Components Included: Strike off bar
Electronic Universal Sand Strength Machine
The Electronic Universal Sand Strength Machine determines the strength properties of clay and/or chemically bonded foundry sand specimens. This strength machine applies pressure on a sand specimen until failure to calculate the maximum force needed to break the specimen and then digitally displays the test results. This advanced electronic technology is capable of running over ten different sand strength tests.
These tests include:
• Green and dry compression strength*
• Green and dry shear strength*
• Splitting strength
• Green deformation at maximum strength
• High compression strength
• Hot shell tensile strength
• Cold shell tensile and transverse strengths
• Disc transverse strength
• Core tensile and transverse strengths
• Hot box tensile strength
*The accessories required to test green and dry compression strength and shear strength of clay bonded foundry molding sand are included with this strength machine. Additional accessories can be acquired separately to run supplementary tests.
Cold Tensile Strength Accessory
This accessory is mounted on the Electronic Universal Sand Strength Machine, Model No. 42104. The test determines the cold tensile strength of standard dog bone specimens prepared from oil, cold box, hot box and air set sands.
Splitting Strength Accessory
To determine the splitting strength of clay bonded molding sands in green or dry conditions, two specially designed circular clamps are attached to the Electronic Universal Sand Strength Machine (Model 42104). This test is considered an indirect measurement of molding sand’s tensile strength properties.
Green Deformation Accessory
This accessory measures the deformation of the green sand specimen after a compression test on the Electro nic Universal Sand Strength Machine, Model No. 42104. Deformation is the change in the length of the sand specimen before and after the compression test. Deformation measurements indicate the plastic characteristics of a molding sand.
Hot Shell Tensile Accessory
This accessory to the Electronic Universal Sand Strength Machine, Model No. 42104 is used to measure the hot tensile strength of shell sands. The unit has both mechanical and electrical connections to the Electronic Universal Sand Strength Machine, Model No. 42104. Using the control cabinet, the operator sets the desired testing time and temperature. The heated core box is manually filled with sand. At the proper dwell time, the strength machine automatically breaks the specimen. The hot tensile strength results are shown on the five-digit display of the strength machine. The Hot Shell Tensile Accessory includes the temperature and timer control cabinet, upper and lower heating block assembly, sand specimen tooling, tooling bridge, sand scoop/strike-off and magnetic tooling extraction device.
High Compression Strength Accessory
This accessory is used with the Electronic Universal Sand Strength Machine, Model No. 42104. It increases the force in a compression test up to a strength of 2068N/cm2 (3000 psi).
Core Transverse Strength Accessory
This accessory attaches to the Electronic Universal Sand Strength Machine, Model No. 42104, and holds the standard core sand transverse sand specimens for transverse strength testing.
This accessory attaches to the Electronic Universal Sand Strength Machine, Model No. 42104, and holds the standard core sand transverse sand specimens for transverse strength testing.
Shell Transverse Strength Accessory
Attached to the Electronic Universal Sand Strength Machine (Model 42104), this accessory breaks shell/croning transverse specimens.The component is designed to hold the AFS standard ¼ in. (6 mm metric standard) thick transverse sand specimen for transverse strength testing.
Utilized With: Electronic Universal Sand Strength Machine (Model 42104)
Cold Shell Tensile Strength Accessory
The Cold Shell Tensile Strength Accessory is used to determine tensile strength of shell/croning coated molding and core sands when mounted on the Electronic Universal Sand Strength Machine (Model 42104).
Tensile strength data is generated using the standard AFS ¼ in. thick dog bone shell tensile specimens and the metric dog bone shell tensile specimens.
Components Included: One set of specimen tooling jaws, tensile accessory base and tensile bridge.
Utilized With: Electronic Universal Sand Strength Machine (Model 42104)
Disk Transverse Accessory
This accessory to the Electronic Universal Sand Strength Machine, Model No. 42104, breaks disc transverse specimens. It includes arm and load cell attachments. The attachments mount mechanically to the arm and load cell of the strength machine.
Digital Absolute Permmeter
The Digital Absolute Permmeter is a fully automatic system which measures the permeability of porous sand masses, both in compacted and loose states. Simply place your specimen on the rubber pedestal and press start. With the addition of specifically designed accessories, the Permmeter can also measure the permeability of raw foundry sand, shell coated foundry sand, and refractory coatings that are used in the foundry industry.
When the Permmeter is in the “exploration mode”, the microprocessor determines and compensates for parasitic resistance to the pneumatic circuit created by other measuring devices, such as the Mold Permeability Accessory (Model 42105B) and the Base Permeability Accessory (Model 42105C). This feature enables the identification of permeability of a porous body attached to another porous body, provided that it is possible to previously determine the permeability of one of them. This is the case of permeability of a wash applied to a permeable substrate, for instance, a washed core. The final results are shown in the display, with no need for calculations.
Shell Permeability Accessory
This accessory measures the permeability of shell sand samples. The sand specimen is held in a metal fixture by a flexible ring. This assembly is attached to the Digital Absolute Permmeter, Model No. 42105, for testing. The shell permeability sample pieces are made in the Test Pieces Blower, Model No. 42109.
Mold Permeability Accessory
This accessory measures the permeability of an actual production mold or core. One end of the accessory fits on the pedestal of the Digital Absolute Permmeter, Model No. 42105, and the other is pressed firmly against the surface to be tested.
This accessory measures the permeability of an actual production mold or core. One end of the accessory fits on the pedestal of the Digital Absolute Permmeter, Model No. 42105, and the other is pressed firmly against the surface to be tested.
Base Permeability Accessory
This accessory to the Digital Absolute Permmeter, Model No. 42105, tests the base permeability of dry sands. It consists of a calibrated metal tube, screen, and compacting weight. The tube is filled and the compacting weight is placed on top of the s and. This assembly is tapped until the compacting weight finishes settling and the sand has achieved its maximum density. Then the weight and top portion of the tube are removed and the excess sand is struck off. The remaining assembly and sand specimen are installed on the Digital Absolute Permmeter, Model No. 42105 and measured to determine the base sands permeability.
Additional Permeability Accessory
This accessory to the Digital Absolute Permmeter, Model No. 42105, tests the permeability of refractory coatings applied to cores and molds. The permeability of an uncoated sand sample is first determined, then the coating can be applied and the new permeability can be measured. The result is the permeability of the coating.
This accessory to the Digital Absolute Permmeter, Model No. 42105, tests the permeability of refractory coatings applied to cores and molds. The permeability of an uncoated sand sample is first determined, then the coating can be applied and the new permeability can be measured. The result is the permeability of the coating.
Laboratory Sifter
The Laboratory Sifter is used to determine the fineness of foundry sands. The sifter is designed to hold up to 11 standard half-height, 8-inch or 200mm diameter sieves. The Sand Testing Sieves, Model No. 42106A are purchased separately. A sieve analysis is used to check sand particle size and distribution and to calculate the AFS grain fineness number and surface area. The sifter consists of an electromagnetic vibrator and controls for regulating vibration intensity and frequency. A built-in digital timer controls the shaking time. (Note: sieves are sold separately and listed below.)
Sand Testing Sieves
The Sand Testing Sieves are used with the Laboratory Sifter, Model No. 42106 for determining the AFS grain fineness number and for the distribution of molding and core sands. Included are a nest of AFS sand testing sieves consisting of U.S.A. sieve numbers 6, 12, 20, 30, 40, 50, 70, 100, 140, 200, 270 and a pan. For the nest of metric (DIN standard) sand testing sieves, the mesh sizes are 1.4mm, 1.0mm, 0.71mm, 0.5mm, 0.355mm, 0.25mm, 0.18mm, 0.125mm, 0.09mm, 0.063mm and pan. Other sieve seizes and configurations are available upon request.
The Sand Testing Sieves are used with the Laboratory Sifter, Model No. 42106 for determining the AFS grain fineness number and for the distribution of molding and core sands. Included are a nest of AFS sand testing sieves consisting of U.S.A. sieve numbers 6, 12, 20, 30, 40, 50, 70, 100, 140, 200, 270 and a pan. For the nest of metric (DIN standard) sand testing sieves, the mesh sizes are 1.4mm, 1.0mm, 0.71mm, 0.5mm, 0.355mm, 0.25mm, 0.18mm, 0.125mm, 0.09mm, 0.063mm and pan. Other sieve seizes and configurations are available upon request.
1/8″ Microsplitter
The 1/8” Microsplitter is used to prepare a representative sample of unbonded foundry sands for sieve analysis testing. Sixteen 1/8” chutes obtain representative sand samples of 125 grams or smaller. The sand poured down the splitter is divided in half with each pass. This reduction technique will yield a representative size sample of the sand for testing.
Utilized With: Laboratory Sifter (Model 42106)
1/2″ Riffle Splitter
The ½” Riffle Splitter accessory is used to prepare a representative sample of unbonded foundry sands for sieve analysis testing,
Fourteen 1/2” chutes divide the sand accurately in half to provide representative sand samples down to 125 grams. This 1/8” Microsplitter (Model 42106B) is needed in conjunction with the 1/2” Riffle Splitter to accurately obtain representative size sand sample small enough for sieve analysis testing.
Utilized With: Laboratory Sifter (Model 42106) and 1/8″ Microsplitter (Model 42106B)
Methylene Blue Clay Tester
The Methylene Blue Clay Tester is used to determine the amount of live bentonite clay present in a sand sample. A five-gram sand sample is washed in a sodium pyrophosphat e solution in the Ultrasonic Cleaner, Model No. 42108B. Then methylene blue dye is added to the sample until the clay cannot absorb the excess. Using a calibration factor and milliliters of dye to titrate the sample, the percentage of live bentonite in the molding sand can easily be calculated. The test requires the Ultrasonic Cleaner, Model No. 42108B. The Methylene Blue Clay Tester consists of a burette with filling and overflow flasks, one stainless steel beaker, electric mixer and agitator blade, a cast base, a repetition pipette, required chemicals, dropper rod and filter paper
Ultrasonic Cleaner
The Ultrasonic Cleaner is used with the Methylene Blue Clay Tester (Model 42108) to scrub a sand sample before the addition of methylene blue dye.
The digital timer and the ability to heat the water bath up to 60°C (140°F), enables maximum control of cycle time with clear read-outs and one touch settings.
The cleaner performs by producing sound waves that radiate as bubbles around the 250 milliliter stainless steel beaker then implode releasing enormous amounts of energy. This energy is transmitted through the beaker causing an intense cleaning action that removes bentonite from the sand and breaks down colonies or clusters of bentonite. All the bentonite within the sample must be removed from the sand to determine the total methylene blue clay percentage.
The tank capacity of the Ultrasonic Cleaner is 1.9 liters (0.5 gallons).
Test Pieces Blower
The Test Pieces Blower is used to make standard tensile, transverse (except cold box) and hot distortion test pieces.
Considering that blowing is the most widely used compacting method for chemically bonded sands, the Test Pieces Blower was designed so the control of sands and binders is performed under conditions similar to those in a plant. The operation of the instrument is done via a single lever that controls the movement of the tooling and the sand blow. When using the appropriate core box tooling and accessories, test specimens can be prepared for:
• Tensile strength – shell sand
• Cold Tensile strength, hot and warm box
• Transverse strength/hot distortion – shell sand
• Disc transverse strength hot and warm box (special tooling is required for sample preparation – requires Disc Transverse Tooling, Model 42109C).
To help maintain repeatability, specimen dimensions are kept within narrow margins and blowing and curing conditions are constant on the Simpson Test Pieces Blower.
Components Included: Core box tooling (Enables preparation of 1” (25 mm) core tensile dog bone, .25” (6 mm) transverse/hot distortion and .25” (6 mm) shell tensile dog bone specimens), Sand cartridge for shell sand, Cartridge blowing lid, Plastic tubing (6.1 mm O.D. x 4.0 mm I.D.) and Heating plates
Catalyst Vaporizer
The Catalst Vaporizer connects to the Test Piece Blower, Model 42109, or the Modified Test Piece Blower, Model 42109MOD, in order to control the gassing and purging sequence of the test specimen via the included electronic cables and supply lines. The apparatus has a built-in PLC and digital temperature controls to accurately and efficiently control the amine gas generation and the sequencing of the user defined blowing and purging cycles. Please note that this device is designed for triethylamine (TEA) or dimethylethylamine (DMEA).
Cold Box Gassing/Purging Device
The Cold Box Gassing/Purging Device attaches to the tooling of the Test Piece Blower, Model 42109, and Modified Test Piece Blower, Model 42109MOD, in order to produce cold box (gas curred) test specimens. The device is required to properly disperse curing gas into the specimen and then flush the specimen with a purging gas.
Disk Transverse Accessory
Laboratory Muller
The Simpson Laboratory Muller is used to prepare mixtures of clay bonded foundry sands and other chemical processing applications that require the high intensity mulling action of the wheels. The mulling conditions found in industrial mullers can be emulated on a smaller scale using a laboratory muller.
The muller incorporates two vertical mulling wheels on independent suspensions. Plows turn the sand mixture over and direct fresh material into the path of the mullers. The muller weight can be adjusted by a single load spring.
The muller has a mixing capacity of approximately 4 kg. (9 lbs.) or 3.7 liters (0.13 cu.ft.) of bentonite bonded silica molding sand or similar chemicals and operates with a 0.559kw (0.75 HP) motor. The mixing bowl dimensions are 394mm (15.5”) inside diameter x 216mm (8.5”) deep.
Laboratory Core Sand Mixer
The Laboratory Core Sand Mixer is designed to mix liquid binders with sand that is common to all chemically bonded sand mixtures. The mixer features an “S” shaped mixing blade with a vertical shaft that completely mixes the complete sand mass.
The mixer has a mixing capacity of approximately 4 kg. (9 lbs.) or 3.7 liters (0.13 cu.ft.) of silica sand or similar chemicals and operates with a 0.559kw (0.75 HP) motor.
Wet Tensile Tester
The Wet Tensile Strength Tester determines tensile strength of the condensation zone that is created in all clay bonded molds during and after pouring. The wet tensile strength is determined by pulling a detachable ring from a special specimen tube. The specimen tube with the detachable ring in position is loaded with molding sand and compacted to the proper specimen height using a Sand Rammer, Model No. 42100, Pneumatic Sand Squeezer, Model No. 42117 or the Digital Pneumatic Squeezer, Model No 42160. After the start button is pressed, an elevation table raises the specimen tube. The heating plate generates steam at the sand heater interface and a temperature gradient through the sand specimen. The steam is driven away from the heating plate through the porosity of the specimen. This water vapor migrates back into the specimen to a temperature zone where it condenses. This condensation zone is known as the wet layer. After a selected time elapses, the elevation table lowers applying a tensile load to the sand specimen. Since the wet layer is the weakest area of the specimen, when a load is applied the specimen breaks at that point. The load required to break this wet layer is the wet tensile strength. The instrument is fully automatic and displays the tensile results in an easy to read digital display. The Wet Tensile Strength Tester includes the specimen tube and detachable ring, pneumatic regulator/filter, pneumatic hose and connectors to connect the supplied regulator/filter to the instrument.
Hot Distortion Tester
The Hot Distortion Tester measures the expansion and high temperature plastic performance of chemically bonded sands when suddenly heated by liquid metal.
When a mold or a core is suddenly heated by contacting a liquid metal, it distorts. This distortion may cause casting quality problems such as veining, broken molds or cores, mold wall movement and difficulties maintaining critical dimensions. Therefore, it is important to know the performance of these materials during heating.
A typical hot distortion test involves four steps:
- Sample description
- Sand Grain description
- Testing
- Evaluation of test results
From the hot distortion curve, valuable conclusions may be determined. Readings from the curve can be used to provide an indication of the thermal expansion, hot brittleness, burn out rate and thermo-plasticity. The time required to break the specimen is an indication of the binder’s hot strength.
The deformation is measured during the entire test and is shown on a color monitor. The distortion curve can be printed or stored in the internal memory of the machine and data can be downloaded into Microsoft® Excel for further statistical evaluation. The instrument also has the capability to accept user defined process control curves entered from the keyboard.
The test specimen, AFS (American Foundry Society) sand testing standard of 1 x 1/4 x 4-1/2 inches or the metric specimen from the Metric Sand Testing Standard of 115mm x 25mm x 6mm must be prepared by blowing under steady conditions so as to secure dimensional accuracy and compaction grade with no variation.
High Temperature Compression Tester
The High Temperature Compression Tester is used to determine hot properties of molded sand with any type of binder (kaolinites, bentonites and chemical binders).
An electronic load cell and displacement sensor measures hot compressive strength, hot deformation, expansion, and restraining load at elevated temperatures. The test results are displayed on a color monitor, can be printed and can be stored into the memory of the instrument.
When determining hot compression strength, the instrument generates and displays a complete stress-strain curve, and identifies the maximum compressive strength, deformation at maximum strength and maximum deformation. The display also indicates the real time strength and deformation of the sand specimen.
An accurate digital controller and indicator regulate the furnace temperature. The furnace is capable of maintaining temperatures up to 2000o F (1093o C). An automatic timer controls the specimen heating time and activates the press at the end of the selected soak time.
Specific tests that can be conducted include:
• Restraining Load Test – This test determines the force that must be applied to prevent the expansion of a specimen when heated to a chosen temperature.
• Expansion Test – This test determines the expansion of a specimen when heated without any load (free expansion) or with a very small preload. The most common temperature applied is 982 degrees Celsius (1800 degrees Fahrenheit). This test will require continuous monitoring and adjustments of the lower pedestal.
• Strength and Deformation Test – This test determines the load required to deform a specimen at a given temperature. The machine measures the actual values and the corresponding maximum strength. A curve is drawn and registered with all this data.
The tester operates with both; the American Foundry Society standard specimens (1.125” (28.58mm) diameter X 2” (50.8mm) high) and the Metric standard specimens (11.28 mm diameter X 20 mm high).
Hot Properties Rammer
The Hot Properties Rammer is used to make standard clay bonded sand specimens for the High Temperature Compression Tester, Model No. 42115. The rammer includes a specimen tube, specimen tube key, stripping post, pneumatic regulator/filter/lubricator, pneumatic hose and connectors to connect the regulator/filter/lubricator to the rammer.
Digital Balance
The Digital Balances, Models 42118, offer a sand laboratory the speed and accuracy required to perform all weighing applications. All balances feature solid construction, a high contrast display and a large scale surface. These balances also feature an automatic tare key, a quick stabilization time of 2-3 seconds and an automatic internal calibration feature. The Model 42118-04 offers features such as a backlit LCD, internal self-calibration and increased readability. The Model 42118-4 features increased readability and an easy to use graphical display with data output capabilities and an automatic temperature variable internal calibration.
Rapid Sand Washer
The Rapid Sand Washer is used to prepare a sand sample for the AFS Clay Tester, Model No. 42131. This washer agitates the sand at a high speed which scrubs the adhering clay from the sand grains. The unit consists of a high speed agitator, timer, and stand and also includes a 1000ml beaker.
The Rapid Sand Washer is used to prepare a sand sample for the AFS Clay Tester, Model No. 42131. This washer agitates the sand at a high speed which scrubs the adhering clay from the sand grains. The unit consists of a high speed agitator, timer, and stand and also includes a 1000ml beaker.
Mechanical Load Cell
The Mechanical Load Cell is used to calibrate loads on the following Simpson laboratory equipment: the Electronic Universal Sand Strength Machine, Model No. 42104, the Digital Pneumatic Sand Squeezer, Model No. 42160 and the High Temperature Compression Tester, Model No. 42115.
The gauge is calibrated using NIST certified dead weights at three positions. Each mechanical load cell is supplied with certification documentation. Using this mechanical load cell, the Electronic Universal Sand Strength Machine, Model No. 42104, can be calibrated in minutes. The incorporation of digital calibration allows the operator to make all necessary corrections via the keyboard without disassembling the strength machine.
The Mechanical Load Cell is supplied with the required fixtures for proper mounting on the Electronic Universal Sand Strength Machine, Model No. 42104. Please note that additional fixtures, Part No. 0017-721, are required for mounting the Mechanical Load Cell when used to calibrate the Digital Pneumatic Sand Squeezer, Model No. 42160. The High Temperature Compression Tester, Model No. 42115 also requires additional fixtures for alignment of the Mechanical Load Cell.
Muffle Furnace
The Muffle Furnace is used to calculate loss on ignition (LOI) and volatiles on both chemically and clay bonded foundry sands. This calculation allows foundries to monitor and control organic additives in clay bonded sand such as sea coal, cellulose and cereal and binder percentages in chemically bonded sand.
The furnace temperature is adjustable between 100°C – 1,100°C (212oF – 2,012oF) with the operating temperature displayed on a digital display. The furnace is available in a small size with chamber dimensions of 250mm x 135mm x 140mm (9.8” x 5.3” x 5.5”) or a large size with chamber dimensions of 330mm x 200mm x 200mm (13” x 8” x 8”). Both are equipped with a PID temperature controller which has a large, bright digital LED that will display either the set point or process temperature.
Drying Oven
The Drying Oven is used to prepare clay bonded molding sands for testing dry sand properties. Dry strength is the measure of resistance to sand inclusion and erosion type defects. In addition, the oven can be used to determine the moisture percentage of new sands and prepared molding sands. Washed sand samples can also be dried in this oven.
Each oven includes two adjustable nickel wire plated shelves with multi-position settings and a corrosion resistant polished stainless steel interior. The oven temperature is adjustable in the range of 10C – 300C (50F – 572F) and features a forced air convection fan. Both ovens include a PID temperature controller which has a large bright LED mounted behind a smooth membrane control panel.
Moisture Analyzer
The Moisture Analyzer is used to determine the moisture content of green sand and other raw materials used within the foundry. Depending upon the unit, at least 25g up to 90g of sand are placed on the drying pan and heated. The analyzer features Halogen drying technology to quickly obtain the moisture content of the material which is automatically calculated and shown on the backlit digital display. The Model 42130-IA & 42130-IC offer an advanced digital display with many different drying programs and multiple languages. The Model 42130-ID is a high capacity unit with just the essential settings and display for the average user. Each analyzer is supplied with 50 Drying Pans.
The Moisture Analyzer is used to determine the moisture content of green sand and other raw materials used within the foundry. Depending upon the unit, at least 25g up to 90g of sand are placed on the drying pan and heated. The analyzer features Halogen drying technology to quickly obtain the moisture content of the material which is automatically calculated and shown on the backlit digital display. The Model 42130-IA & 42130-IC offer an advanced digital display with many different drying programs and multiple languages. The Model 42130-ID is a high capacity unit with just the essential settings and display for the average user. Each analyzer is supplied with 50 Drying Pans.
AFS Clay Tester
AFS clay is the percentage of particles with a diameter less than 20 microns in a foundry sand sample. This includes active clay, dead clay, silt and inert fines. The sand sample to be tested must be prepared in the Rapid Sand Washer, Model No. 42119. The AFS Clay Tester stirs a water and sand mixture into suspension and drains the overlaying liquid after a preset settling time. The time between cycles allows only particles larger than 20 microns to settle. If this process is repeated enough, all particles smaller than 20 microns will be removed. A command panel with a keyboard and a liquid crystal display (LCD) operates the tester. An on-board microprocessor can be programmed by the operator via the LCD for several advanced options, including number of cycles and type of sand to be tested. The AFS clay tester can also adjust settling times to compensate for temperature changes. A thermistor registers the water temperature during each settling period. This data is received by the microprocessor which uses this information to correct the settling time for the next wash. The AFS Clay Tester is shipped with a pressure regulator, connecting hoses and 1000 milliliter beaker. The AFS Clay Tester also requires a Rapid Sand Washer, Model No. 42119 to pre-treat the sand sample prior to testing
AFS clay is the percentage of particles with a diameter less than 20 microns in a foundry sand sample. This includes active clay, dead clay, silt and inert fines. The sand sample to be tested must be prepared in the Rapid Sand Washer, Model No. 42119. The AFS Clay Tester stirs a water and sand mixture into suspension and drains the overlaying liquid after a preset settling time. The time between cycles allows only particles larger than 20 microns to settle. If this process is repeated enough, all particles smaller than 20 microns will be removed. A command panel with a keyboard and a liquid crystal display (LCD) operates the tester. An on-board microprocessor can be programmed by the operator via the LCD for several advanced options, including number of cycles and type of sand to be tested. The AFS clay tester can also adjust settling times to compensate for temperature changes. A thermistor registers the water temperature during each settling period. This data is received by the microprocessor which uses this information to correct the settling time for the next wash. The AFS Clay Tester is shipped with a pressure regulator, connecting hoses and 1000 milliliter beaker. The AFS Clay Tester also requires a Rapid Sand Washer, Model No. 42119 to pre-treat the sand sample prior to testing
Permeability Standard
The Permeability Standard is used to verify and calibrate the Digital Absolute Permmeter, Model No. 42105. The accuracy of the permmeter can be verified in seconds.
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Acid Demand Value (ADV) Test Kit
The Acid Demand Value (ADV) Test measures the amount of basic material present in the sand that is soluble in a dilute acid solution. Since the reaction which cures the resin in many chemical binder systems is acid catalyzed, and since the acid is very mild, the presence of the basic material which can neutralize this weak acid will retard the curing reaction. The ADV of the sand should be monitored, since drastic changes can require a catalysts modification. The Acid Demand Value (ADV) Test Kit includes a digital magnetic stirrer, specialized stir wedge, two titrating burettes, heavy duty stand, beaker, dual self-zeroing burette kit, advanced pH/mV/temperature meter with electrode and electrode arm kit. Chemicals are not included.
Analytical Balance
The Analytical Balance is a high precision weighing instrument necessary for several standard AFS or DIN tests requiring high accuracy measurements. These balances feature an oversized chamber, full color graphic display and rugged construction. In addition, the balance incorporates a stability detection system coupled with a quick response time, ensuring efficient use of laboratory time. Each balance includes a sealed keypad, overload and shock protection and fully automatic internal calibration.
The Analytical Balance is a high precision weighing instrument necessary for several standard AFS or DIN tests requiring high accuracy measurements. These balances feature an oversized chamber, full color graphic display and rugged construction. In addition, the balance incorporates a stability detection system coupled with a quick response time, ensuring efficient use of laboratory time. Each balance includes a sealed keypad, overload and shock protection and fully automatic internal calibration.
Friability Tester
The Friability Tester is used to determine the friability (surface integrity) of a clay bonded foundry molding sand by measuring the ability of compacted molding sand to resist abrasion or scuffing within the first few millimeters at the surface of a prepared mold. A high molding sand friability can indicate a tendency to produce sand inclusions on the finish castings and loss of casting quality.
The machine is easy to operate via the digital user interface and requires very little maintenance due to the totally enclosed drive system. The instrument consists of two standard 2″ x 2″ AFS (50mm x 50mm metric) specimens placed side-by-side in a cylindrical screen and rotated against each other. While rotating within the cylindrical screen, sand is removed from the two sand specimens. The dislodged sand drops through the wire mesh cage into a catch pan positioned directly below the rotating cylindrical screen. After rotating the sand specimens for one minute, the screen will automatically stop. The sand that is collected in the catch pan is weighed. The weight of sand removed, divided by the original weight of the specimens and multiplied by 100 is reported as a percentage representing molding sand friability.
Mold Hardness Tester B-Scale
The instrument is portable, lightweight and easy to operate. It incorporates an LCD display that clearly indicates the hardness number and completely eliminates any operator error associated with reading a mechanical scale. The instrument automatically records the maximum penetration value. The Electronic Mold Hardness Tester can be easily calibrated. Basic Package: Electronic Mold Hardness Tester AAA Rechargeable NiMH Battery Carrying Case Software Functions: Store and display date of last calibration Store and display user name Basic point to point mode Mode of Operation: Point to Point Mode – Allows the operator to measure and record one mold hardness reading per test. The basic Electronic Mold Hardness Tester cannot store any data in memory. This instrument will display, for a defined time, the resultant mold hardness value in the LCD. Mold hardness, as determined by this instrument, is the resistance offered by the surface of a prepared sand mold to be penetrated by a loaded plunger. The instrument measures the depth of penetration into a mold surface of a plunger having a load applied at a 90 degree angle to the mold surface.
The instrument is portable, lightweight and easy to operate. It incorporates an LCD display that clearly indicates the hardness number and completely eliminates any operator error associated with reading a mechanical scale. The instrument automatically records the maximum penetration value. The Electronic Mold Hardness Tester can be easily calibrated. Basic Package: Electronic Mold Hardness Tester AAA Rechargeable NiMH Battery Carrying Case Software Functions: Store and display date of last calibration Store and display user name Basic point to point mode Mode of Operation: Point to Point Mode – Allows the operator to measure and record one mold hardness reading per test. The basic Electronic Mold Hardness Tester cannot store any data in memory. This instrument will display, for a defined time, the resultant mold hardness value in the LCD. Mold hardness, as determined by this instrument, is the resistance offered by the surface of a prepared sand mold to be penetrated by a loaded plunger. The instrument measures the depth of penetration into a mold surface of a plunger having a load applied at a 90 degree angle to the mold surface.
Mold Hardness Tester B-Scale Advanced
The instrument is portable, lightweight and easy to operate. It incorporates an LCD display that clearly indicates the hardness number and completely eliminates any operator error associated with reading a mechanical scale. The instrument automatically records the maximum penetration value. The Electronic Mold Hardness Tester can be easily calibrated. Basic Package: Electronic Mold Hardness Tester AAA Rechargeable NiMH Battery Carrying Case Software Functions: Store and display date of last calibration Store and display user name Basic point to point mode Mode of Operation: Point to Point Mode – Allows the operator to measure and record one mold hardness reading per test. The basic Electronic Mold Hardness Tester cannot store any data in memory. This instrument will display, for a defined time, the resultant mold hardness value in the LCD. Mold hardness, as determined by this instrument, is the resistance offered by the surface of a prepared sand mold to be penetrated by a loaded plunger. The instrument measures the depth of penetration into a mold surface of a plunger having a load applied at a 90 degree angle to the mold surface.
Mold Hardness Tester C – Scale
The instrument is portable, lightweight and easy to operate. It incorporates an LCD display that clearly indicates the hardness number and completely eliminates any operator error associated with reading a mechanical scale. The instrument automatically records the maximum penetration value. The Electronic Mold Hardness Tester can be easily calibrated. Basic Package: Electronic Mold Hardness Tester AAA Rechargeable NiMH Battery Carrying Case Software Functions: Store and display date of last calibration Store and display user name Basic point to point mode Mode of Operation: Point to Point Mode – Allows the operator to measure and record one mold hardness reading per test. The basic Electronic Mold Hardness Tester cannot store any data in memory. This instrument will display, for a defined time, the resultant mold hardness value in the LCD. Mold hardness, as determined by this instrument, is the resistance offered by the surface of a prepared sand mold to be penetrated by a loaded plunger. The instrument measures the depth of penetration into a mold surface of a plunger having a load applied at a 90 degree angle to the mold surface.
The instrument is portable, lightweight and easy to operate. It incorporates an LCD display that clearly indicates the hardness number and completely eliminates any operator error associated with reading a mechanical scale. The instrument automatically records the maximum penetration value. The Electronic Mold Hardness Tester can be easily calibrated. Basic Package: Electronic Mold Hardness Tester AAA Rechargeable NiMH Battery Carrying Case Software Functions: Store and display date of last calibration Store and display user name Basic point to point mode Mode of Operation: Point to Point Mode – Allows the operator to measure and record one mold hardness reading per test. The basic Electronic Mold Hardness Tester cannot store any data in memory. This instrument will display, for a defined time, the resultant mold hardness value in the LCD. Mold hardness, as determined by this instrument, is the resistance offered by the surface of a prepared sand mold to be penetrated by a loaded plunger. The instrument measures the depth of penetration into a mold surface of a plunger having a load applied at a 90 degree angle to the mold surface.
Mold Hardness Tester C-Scale Advanced
The instrument is portable, lightweight and easy to operate. It incorporates an LCD display that clearly indicates the hardness number and completely eliminates any operator error associated with reading a mechanical scale. The instrument automatically records the maximum penetration value. The Electronic Mold Hardness Tester can be easily calibrated. Basic Package: Electronic Mold Hardness Tester AAA Rechargeable NiMH Battery Carrying Case Software Functions: Store and display date of last calibration Store and display user name Basic point to point mode Mode of Operation: Point to Point Mode – Allows the operator to measure and record one mold hardness reading per test. The basic Electronic Mold Hardness Tester cannot store any data in memory. This instrument will display, for a defined time, the resultant mold hardness value in the LCD. Mold hardness, as determined by this instrument, is the resistance offered by the surface of a prepared sand mold to be penetrated by a loaded plunger. The instrument measures the depth of penetration into a mold surface of a plunger having a load applied at a 90 degree angle to the mold surface.
The instrument is portable, lightweight and easy to operate. It incorporates an LCD display that clearly indicates the hardness number and completely eliminates any operator error associated with reading a mechanical scale. The instrument automatically records the maximum penetration value. The Electronic Mold Hardness Tester can be easily calibrated. Basic Package: Electronic Mold Hardness Tester AAA Rechargeable NiMH Battery Carrying Case Software Functions: Store and display date of last calibration Store and display user name Basic point to point mode Mode of Operation: Point to Point Mode – Allows the operator to measure and record one mold hardness reading per test. The basic Electronic Mold Hardness Tester cannot store any data in memory. This instrument will display, for a defined time, the resultant mold hardness value in the LCD. Mold hardness, as determined by this instrument, is the resistance offered by the surface of a prepared sand mold to be penetrated by a loaded plunger. The instrument measures the depth of penetration into a mold surface of a plunger having a load applied at a 90 degree angle to the mold surface.
Electronic Scratch Hardness Tester
The scratch hardness of a mold or core is determined using this instrument. The instrument incorporates a four point cutter that penetrates a finished core or mold surface when rotated. The depth of penetration of the cutter into the specimen determines the hardness of the core or mold. The use of advanced electronics increases the accuracy of the instrument. The Electronic Scratch Hardness Tester is lightweight, portable and engineered for foundry use. Package Includes: Electronic Scratch Hardness Tester Carrying Case Computer Software Package Infrared Receiver Box And Board Cables Calibration Fixture Software Functions: Store and display date of last calibration Store and display user name Point to point mode Store up to 900 data points Identify up to 32 molds Digital calibration of displacement Infrared data transfer to computer Mode of Operation: The instrument will automatically record the hardness number every 360 degrees of cutter rotation. This instrument will display, for a defined time, the resultant scratch hardness value in the LCD.
The scratch hardness of a mold or core is determined using this instrument. The instrument incorporates a four point cutter that penetrates a finished core or mold surface when rotated. The depth of penetration of the cutter into the specimen determines the hardness of the core or mold. The use of advanced electronics increases the accuracy of the instrument. The Electronic Scratch Hardness Tester is lightweight, portable and engineered for foundry use. Package Includes: Electronic Scratch Hardness Tester Carrying Case Computer Software Package Infrared Receiver Box And Board Cables Calibration Fixture Software Functions: Store and display date of last calibration Store and display user name Point to point mode Store up to 900 data points Identify up to 32 molds Digital calibration of displacement Infrared data transfer to computer Mode of Operation: The instrument will automatically record the hardness number every 360 degrees of cutter rotation. This instrument will display, for a defined time, the resultant scratch hardness value in the LCD.
Desiccator & Accessories
Several different dissector options and accessories are available to control hygroscopic and other contamination during the cooling of samples after those samples have been heated in the Muffle Furnace (Model 42127).
The Desiccator Chamber (PN 0042147) features a sealed glass lid and glass vertical walls and bottom. It also includes a porcelain plate with a desiccant storage area below (desiccant sold separate).
The Desiccator Cabinets (PN 0042147-JA and PN 0042147-JB) feature a stainless steel frame and two stainless steel shelves with an included desiccant tray (desiccant sold separate). There is also a manual relief valve that allows the equalization of the chamber pressure prior to opening the door. The reusable desiccant changes color as it absorbs moisture and will change back to blue from pink when heated to 218°C (424.5 °F) for one hour. Two desiccant sizes are available: 0.45kg (1 lb.) and 2.25kg (5 lbs.).
Melt Point Tester
The test apparatus consists of a heated bar in which a temperature gradient is established so that the left end of the bar is cooler than the right. The temperature gradient of the bar can be controlled. To make a test, the sand sample is loaded into a specially designed traveling hopper. When a test is started, the instrument automatically opens the sand hopper and moves it left to right at a controlled travel speed. While traveling, the hopper delivers a very controlled amount of shell sand onto the heated bar. After a predetermined time the instrument automatically blows a gentle jet of air starting from the cool end towards the hot end of the bar. At the point where the sand resists being blown off, a thermocouple tip aligned by laser is applied to the surface of the heated bar. The temperature measured at this point on the heated bar is the melt point of the sand sample. The Simpson Melt Point Tester automatically controls the bar temperature and the loading and unloading of the heated bar which reduces the operator influence on the test results. The Melt Point Tester includes pneumatic regulator/filter, blow off sample tray, pneumatic hose and connectors to connect the supplied regulator/filter to a compressed air source.
The test apparatus consists of a heated bar in which a temperature gradient is established so that the left end of the bar is cooler than the right. The temperature gradient of the bar can be controlled. To make a test, the sand sample is loaded into a specially designed traveling hopper. When a test is started, the instrument automatically opens the sand hopper and moves it left to right at a controlled travel speed. While traveling, the hopper delivers a very controlled amount of shell sand onto the heated bar. After a predetermined time the instrument automatically blows a gentle jet of air starting from the cool end towards the hot end of the bar. At the point where the sand resists being blown off, a thermocouple tip aligned by laser is applied to the surface of the heated bar. The temperature measured at this point on the heated bar is the melt point of the sand sample. The Simpson Melt Point Tester automatically controls the bar temperature and the loading and unloading of the heated bar which reduces the operator influence on the test results. The Melt Point Tester includes pneumatic regulator/filter, blow off sample tray, pneumatic hose and connectors to connect the supplied regulator/filter to a compressed air source.
Shatter Index Tester
This tester is designed to measure resistance to degeneration and plasticity of clay bonded sand upon impacting a target at a fixed velocity. This “shatter index” has been shown to correspond to the ability to draw deep pockets during the molding process.
Operation of this instrument begins with a specimen tube containing the prepared sand sample (AFS 2” x 2” or metric 50 mm x 50 mm) which is prepared and placed in the sand sample tube holder on the apparatus. The device is then activated via an automatic control knob that pneumatically retracts the specimen tube while restraining the sand specimen. The retraction of the specimen tube allows the sand sample to be dropped from a set distance with an initial velocity of zero. By utilizing this automated design, the operator influence that normally dictates the starting velocity in older designs is eliminated and the sand sample has a controlled and constant descent until contacting the anvil. Once the sand sample impacts the anvil, the degenerated sand falls through the screen and is collected in the custom molded catch pan for analysis.
Digital Pneumatic Sand Squeezer
This instrument was designed to mimic the compressing action of an automatic molding machine in order to measure the effects the sand has upon its compactionabilities. Also, the device prepares standard 2″ x 2″ AFS or 50mm x 50mm metric sand specimens. The standard sand specimen is used in various tests including permeability, compressive strength, shear strength, etc.
The sand squeezer can be a replacement for the standard 3-ram method of making sand specimens using a traditional sand rammer. This device is considered more representative of molding machines that utilize high pressure squeezing.
The Digital Pneumatic Sand Squeezer is capable of storing nine Sample Names and values in addition to storing a predetermined specimen weight value for future reference and the calculation of specimen weight. The compactability and displacement are automatically calculated and digitally displayed after the cylinder compresses the sand sample.
The actual squeeze pressure that is operator configurable via the included pneumatic regulator is also displayed on the digital display.
Pneumatic Ejector
The ejection of the test specimen can influence all next tests. This instrument automatically ejects the specimen softly, ensuring high repeatability. Since the human “factor” can be eliminated, the test sample can be ejected without any further compaction. Tests have shown that this additional compaction falsifies the results of later measurements, e.g. the compressive strength.
The Pneumatic Ejector (Model PAB-P) is designed exclusively for compacted green and core sand specimen. With the PAB-P, the test specimen is pushed out pneumatically by the extending cylinder and simultaneously the test specimen tube is cleaned. Core sand specimens, without a split test specimen tube, can also be safely ejected.
Transverse Core Box – Gas Cured
For the production of 3 transverse strength samples of gas-cured sand to determine deformation.
Transverse Core Box – Heat Cured
This accessory is used for manual or mechanical ((Labjet (Model PLS)) preparation of standard bars (1–3 per operation).
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Sand Container – Normal Flow
Sand Container – Easy Flow
For sand with normal and easy flowability.
Core Transverse Accessory
Transverse strength of resin-bonded sand is the strength most frequently measured.
Mold Strength Tester
For the determination of the degree of curing in the lower zones and determination of curing time, especially the strip time
Universal Sand Strength Machine
For the determination of the compressive strength sD up to approx. 30 N/cm2. 230 V, 50 Hz
Mold Strength Tester
This electronic mold strength tester ensures a practically movement-free force measurement by means of an oscillating crystal-controlled sensor. The measured force, which corresponds to the penetration resistance, indicates the strength rate. The tester comprises a digital display unit, a multifunction push-button switch and two 1,5 V batteries. It measures and stores the maximum value in N/cm2 or PSI, automatically calibrates the zero point, retains the value last measured in storage, and then turns off automatically.
This electronic mold strength tester ensures a practically movement-free force measurement by means of an oscillating crystal-controlled sensor. The measured force, which corresponds to the penetration resistance, indicates the strength rate. The tester comprises a digital display unit, a multifunction push-button switch and two 1,5 V batteries. It measures and stores the maximum value in N/cm2 or PSI, automatically calibrates the zero point, retains the value last measured in storage, and then turns off automatically.
Gassing Head
This equipment controls gassing of test samples of gas-cured molding sand.
Gas Pressure Measuring Device
In order to accurately measure the gas pressure from foundry sands, this instrument can be used. To measure, a sand sample is heated then the gas pressure is recorded over time.
The success of castings is largely dependent upon this gas pressure and the generation time of the sand. During the pouring process, the cores and mold come into contact with liquid metal and are rapidly heated to high temperatures. As the temperature increases, the pressure inside the core increases due to the growing volume of core gas generated. The removal of these hot gases, via the core structure, is hindered by the mold. If the quantity of gas reaches a level where it can no longer be vented by the permeability of the sand, the gas can be forced into the liquid metal and cause defects in the casting (e.g. porosity). Due to this impact of the core gas on the casting between the start of pouring and solidification, generation time is an important variable. To avoid casting defects, measurement of the gas pressure and judgement of generation time is extremely important to the metal caster.
Gassing Device
This equipment controls gassing of test samples of gas-cured molding sand.
Scratch Hardness Tester
The hardness of the sand is determined by turning a milling head into cores and reading the penetration depth in mm.
Labjet
For the determination of the transverse strength of core sand, a standard sample specimen of reproducible quality must be made. With the Labjet and the corresponding attachments, such test specimen can be made out of gas-cured (PGG) and from hot-box sands (PTR, PBH/3).
For the determination of the transverse strength of core sand, a standard sample specimen of reproducible quality must be made. With the Labjet and the corresponding attachments, such test specimen can be made out of gas-cured (PGG) and from hot-box sands (PTR, PBH/3).
Methylene Blue Clay Tester / Mag. Stirrer
For fast and complete removal of the clay coating and other material from the sand surface.
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Twin-Transverse Shear Strength Accessory
This accessory measures the accuracy of the twin-transverse shear strength. The measured value is divided by 2 (up to 15 N/cm2).
Splitting Strength Accessory
Serves to determine the splitting strength by simplified and approximate measuring, or green tensile strength (splitting strength x 0,637 = green tensile strength) of up to 15 N/cm2.
Temperature Controller
For regulation of temperature and time when preparing transverse strength bars.
Minilab
The Minilab is a multi-purpose instrument used to determine strength properties of clay and/or chemically bonded foundry sand specimens. This advanced technology may be used to create a 50mm x 50mm cylindrical test specimen and is capable of running many different sand strength tests with additional fixtures and accessories that are easy to connect to the instrument. These tests include: Green Sand Compactability, Compression Strength, Splitting Strength, Twin-Transverse Shear Strength and additional tests.
Operation of this technology is automated. After placing the sand specimen in the strength accessory, the operator selects the desired test. A vertically-moving piston applies pressure on a sand specimen until failure. The force data is then displayed on the digital panel. The machine may be calibrated as necessary using spring forces and piston displacement.
Cold Tensile Strength Accessory
For testing tensile strength.