Ductility Testing Machine : Ductility Testing Machine is defined as distance in cms to which a standard briquette of bitumen can be stretched before the thread breaks. The briquette is stretched at a rate of 50 mm/min. +/-2.5 mm per minute at a temperature of 27 deg.C +/-0.5 deg C. The apparatus consists of water bath with a thermostatic heater, and a circulating pump to maintain uniform water temperature . one half of the briquette molds is fixed in a fixed plate in the water bath, the other half of the briquette mold is fixed to a carrier which slides over a rotating threaded shaft with a clutch, The motor and gears to rotate the shaft are housed in a cabinet fixed above the other end of the bath. A pointer fixed to the carrier moves over. a scale graduated from 0-100 cm x 1 mm fixed on the bath with "0" (Zero) of the scale towards the fixed plates side. The rotating shaft has 2 speeds of travel for the bracket, 5 cm/min. and 1 cm/min. selected by a clutch. Water bath inside is of stainless steel with insulation and water drain cock . A heater with thermostatic control is fitted inside the water bath. Control switches for motor, stirrer, heater and indicator lamps are fixed at a convenient place on the water bath. Complete with three briquette molds and one base plate.

Compression Testing Machine 1000KN :

Alpha Chem is manufactures, exporter & suppliersCompression Testing Machine 1000KN.

Compression Testing Machine 1000KN : Capacity of the machine is 1000kN. Specimens upto 15cms cubes and 15 cms dia x 30 cms high cylinders can be accommodated. Load measurement is done by a 15 cms dial bourdon tube type hydraulic pressure gauge calibrated in 100 divisions, fitted with a maximum pointer (lag less pointer). The gauge is calibrated against an RTC tested proving ring.The machine is of channel construction, giving excellent lateral rigidity. The hydraulic loading unit is located on the base of the loading machine. The hydraulic jack is precision machined. The piston and cylinder are ground and lapped to fine tolerances. The lower platen can be centrally located on the base, and has concentric grooves for centering the specimen. Spacer is provided to test small specimens. The upper platen is mounted on a swivel arrangement for self aligning action. The pump is fitted integral on the testing machine along with oil reservoir. The hand operated pump is of two speed concentric piston type.Other Capacity : 10 Tons, 25 Tons, 50 Tons, 100 Tons, 150 Tons, 200 TonsCompression Testing Machine (Hand Operated) Four Pillar Type

Available Capacity: 10 Tons, 25 Tons, 50 Tons, 100 Tons, 150 Tons, 200 Tons

Portable Point Load Testing Machine : Portable instrument which can be used in both the laboratory or in situ to determine the rock strength index of rock samples or cores. The values required for the calculation of the rock strength index are failure load and distance between the conical points.

Parameters:

Max work pressure: 60MpaPiston diameter: dia.35mmPiston area: 9.62cm2Dimension: 380x300x620mm approx.weight: 85kg. approx.

Alpha Chem is manufactures, exporter & suppliersFlexure Testing Machine.

Flexure Testing Machine : The Flexure Strength Testing are designed to test flexural strength of concrete beams. The design provide maximum rigidity throughout their working range. The load is applied by the downward movement of the piston. A spacer is for testing different size of beams. The load is indicated on a calibrated bourdon tube type load gauge of range: 0 - 100 kN x 0.5 kN (0- 1O, 000 kgf x 50 kgf). The load gauge is calibrated against National Council for Cement and Building Materials Certified Proving Ring.

Flexure Testing Machines1. Light weight, rugged high strength frame2. Double action hydraulic pump3. Self-aligning roller assembly4. Hydraulic jack provided with retraction spring5. For testing beams of 100 x 100 x 500mm and 150 x 150 x 700mm6. Conforms to IS 516, BS 1881 and ASTM C 78 Two Models are available

Fatigue testing machine :

Alpha Chem is manufactures, exporter & suppliersFatigue testing machine.

Fatigue testing machine : Designed with utmost precision, the offered machine is manufactured using optimum quality raw materials and advanced technology. In addition to this, our machine undergoes various tests under the supervision of quality controllers, in order to ensure its flawlessness. Clients can avail this machine from us at market leading rates.

Specifications:

Speed: 0-4200 RPM (Continuous variable)Counter: Microprocessor based pre-set counterPower: 230 Volts, 50 Hz, 3 H.P. 1 Phase motorDimensions: 750(L) x 550(B) x 1170(H) approx.Weight: 135kgs approx.

Dorry Abrasion Testing Machine : The machine is used to determine the resistance of aggregate to wear by abrasion. Inadequate abrasion resistance of road-surfacing aggregates means an early loss of the texture depth required to maintain high-speed skidding resistance.

Specification :

It consists of a disc rotating about a shaft connected to a reduction gear box coupled to a motor. The disc rotates at 28-30 r.p.m. Under the rotating disc is a tray with an outlet to facilitate the removal of sand. Two conical hoppers are mounted on a bracket fixed to the circular tray. An arrangement is made for start and stop the flow of sand. Two holes are provided for mounting two specimens simultaneously. Two containers with weights are supplied to keep the specimens pressed against the rotating disc. Suitable for operation on 220 volts, 50 cycles, A.C. supply.

Alpha Chem is manufactures, exporter & suppliersTile Flexure Testing Machine.

Tile Flexure Testing Machine : Tile Flexure Testing Machine is used to determine the flexural strength of clay roofing tiles and cement concrete flooring tiles. We are one of the leading manufacturers of Tile Flexure Testing Machines. Our machines are manufactured using best raw materials to ensure good functionality and durability.Functionality : The Tile Flexure Testing Machine is a double lever loading machine where load is placed by a flow of lead metal that automatically stops as the sample breaks. The sample is mounted between rollers which are 40mm or 12mm in dia. Bearing rollers can be placed at center distances of 150, 200 or 270mm. The unit comes equipped with a 20 Kg lead metal.

Alpha Chem is manufactures, exporter & suppliers Automatic Compression Testing Machine.

Automatic Compression Testing Machine : Automatic range of 1500kN, 2000kN and 3000kN capacity compression testing machines have been designed to meet the need for reliable and consistent testing of concrete samples. All machines feature the complete automatic test cycle with a closed loop digital readout. Once the specimen parameters have been introduced, it is sufficient to press the START button to complete the test.Compression machines consist of three main parts: Frame, power pack and data acquisition & control system. Each part has been designed to manufacture machines with a high degree of mechanical stability and complies to EN 12390-4; BS 1881 and ASTM C39 (with suitable platen set) standards.Automatic test cycle with standard Rapid ApproachGraphical - LCD Data Acquisition and Control SystemMenu Driven Software for easy operationLoad vs time plot and instantaneous load rate displayedAccurate load rate control within 5 from 1 kN/sec to 20 kN /secClass 1 starting from 10% of the full rangeReady Stress Calculation for the standards of EN 12390-3, EN 12390-5, EN 12390-6, EN1338, EN1340, EN 196SI, Metric, Imperial UnitsData storage up to 256 testsRS 232 output for printer or PCFree of charge PC software for test control and advanced report printout

Frame

The frame is welded steel fabrication carrying the ball-seated 300 mm diameter upper platen which complies to EN 12390-4. Located on the loading ram which is protected from debris by a cover, the lower platen is marked for the centering of cube and cylinder specimens. The dimensions of the frame allow the testing of concrete cylinders up to 320 mm long x 160 mm diameter; 100, 150 mm and 200 mm cubes. All machines are supplied complete with 30 mm, 40mm, 50mm and 90 mm distance pieces. To test samples shorter than 150 mm extra distance pieces should be ordered. All machines are supplied with flexi-glass front and rear removable safety doors. All frames have a single acting up stroking ram with over travel protection to stop the motor when the maximum platen travel is reached.

Power Pack

The dual stage power pack which is designed to supply the required oil to the frames. Very silent power pack can load a specimen between 1 kN/sec to 20 kN/sec. A high delivery low pressure pump is used for rapid approach and a low delivery high pressure radial piston pump is used for test execution. On all power packs maximum pressure valve is used to avoid machine overloading.The main characteristics are:Dual stage pump750 W power25 litre oil capacity60-100 mm/min fast approach speed

Special Feature :

600kN, 1500kN, 2000kN & 3000kNHigh stability welded assembly50mm piston stroke with safety switchPlaten hardness of min 55 HRCDistance pieces and safety door included

Compression Testing Machine with control Panel :

Alpha Chem is manufactures, exporter & suppliers CompressionTesting Machine with control Panel.

Compression Testing Machine with control Panel : Electrically Operated Compression Testing Machine CTM which is an electric cum hand operated machine for conducting compression tests on concrete specimens up to 20cm dia and 30 cm in height. The machine caters to the essential applications of various Indian, British & American standards for compression tests.For Compression test on Concrete or similar materials. Suitable for use on Concrete Cubes of any size upto 5cm x 5cm x 5cm, 7.06 x 7.06cm, 10cm x 10cm x 10cm, and 15cm x 15cm x 15cm also on 10 x 20cm and 15 x 30cm high Concrete Cylinders. The load is applied thru hydraulick assembly.The lower platen is on the Hydraulic ram, and upper having a spherical seating is adjustable. The machine is provided with an air release valve and the load is automatically indicated on the 15 cms diam hydraulic pressure calibrated against an N.C.B.M. tested Proving Ring and fitted with a legless max pointer in addition to the live pointer.This is a hydraulic, electrically operated unit, designed for conducting compression tests on concrete specimens up to 20 cm. Diameter (or width and depth) and 30 cm, in height and also rocks and various other materials. Cold Crushing Strength (CCS) test is also possible.The machine consists of a steel cross head and cast iron base with two pillars connecting the base and cross head by means of nuts. The hydraulic jack is fixed to the base. The upper platen has got a self aligning action and is attached to a screw which passes through the cross head and can be raised or lowered for initial clearance adjustment. The lower platen rests on the jack ram and is positioned with the help of a centering pin.Loading is accomplished by the upward movement of the with the help of a centering pin. Loading is accomplished by the upward movement of the motorized pumping unit is of plunger type and is connected to the jack by means of a steel connecting tube.A maximum red pointer is provided to facilitate taking of the readings after failure of specimens. The pressure gauges of 20 cm diameter with isolating valves are fixed on the pumping unit at an angle for easy readability.The machine is fitted with control which enables the rate of application of load to be varied. The machine is equipped with facilities for hand operation as well.The electrical pumping unit is fitted with three micro switches one for each pressure gauge and will switch off the machine automatically as the load on the machine approaches its full capacity of the gauge in case the isolating valves are not operated. This will protect the pressure gauges and the whole unit so that in case of break down of power supply, the machine will stop and will not restart unless the starting switch is operated.The machine satisfies the essential specifications of Indian Standard No. 516-1959. For operation on415 Volts, 3-ph or 230 Volts, 1-ph A.C.

Los Angeles Abrasion Testing Machine : The machine is used for testing crushed slag, crushed and uncrushed gravel for resistance to abrasion. The aim of the test is to find the percentage wear due to the relative rubbing action between the aggregates and steel balls as abrasive charge. The oven-dried arrangements are weighted and rotated along with abrasive charge in the machine for the 500 or 1000 revolutions and percentage of wear so found out its reported as Los angeles abrasion value.

General Description & Specifications: Consists of a hollow steel cylinder, closed at both ends, having an inside diameter of 700mm and inside length of 500mm. The cylinder mounted on a sturdy frame on ball bearings. The opening is closed dust tight with a removable bolted cover in place. A detachable shelf which extends through the drum catches the abrasive charge and does not allow it to fall on the cover. The drum is rotated at a speed of 30-33 RPM by an electric motor through a heavy duty reduction gear. Fitted with revolution counter and push button starter. Supplied complete with a tray for collection of the material. Abrasive charge consists of set of 12 Nos. cast iron spheres or steel spheres (hardened steel balls) approximately 48mm diameter each weigh between 390-445 gram. Complete as above.

Optional Accesories:

The following accessories are not part of the standard supply and are supplied at an extra cost.Laboratory Oven.Test Sieve 1.7mmElectronic Balance of 15 kg x 1 gmSpare Abrasive charge

Universal Testing Machine :

Alpha Chem is manufactures, exporter & suppliersUniversal Testing Machine.Universal Testing Machine : Loading frameThe base has a hydraulic cylinder at Its center, and two main screws at both ends. The middle cross head is mounted on screws through main nuts. The middle cross head can be moved up or down with a speed of 400 mm/min through chain transmission and geared motor to adjust the initial tensile / compression clearance. On the piston rests an assembly of upper, lower crosshead and two columns. The individually lapped cylinder piston assembly ensures smooth transfer of force with minimum friction.

Hydraulic system

Hydraulic circuit consists of hydraulic power pack having a directly driven radial plunger pump, which gives a continuous non pulsating flow of oil pressure upto 210 bar. Oil filter, Oil strainer, Air breather, Oil level Indicator, Drain plug are provided on the power pack. A pressure compensated needle type flow control valve is provided to control the oil flow to cylinder there by achieving desired piston speed. Infinitely variable speeds can be obtained with the help of valves.

Load measuring system

The oil pressure in the main cylinder Is transferred to the small dynamometer cylinder. The dynamometer piston is kept rotating at a slow speed to ensure dynamic friction condition. The piston exerts a force proportionate to the pressure on the hanger connected to one arm of the pendulum, through an auto range selecting lever system. This force deflects the pendulum. The range selection can be effected by simply turning a knob, provided outside of the panel. An effective damping arrangement is provided to ensure slow return of the pendulum after sudden fracture of the test specimen.

Load indicating arrangement

The pendulum lever pushes rack which slides over two pulleys. The rack movement is proportionate to the load. A pinion in engagement with the rack rotates and moves the pointer fixed to its shaft. The pointer moves over a large dial indicating the load. A window type dial is provided for easy and clear change of the load range.

Recording System

A continuous roll type load elongation recorder is provided for plotting a load - elongation graph. Load is plotted by the horizontal movement of the rack. Elongation is plotted on the vertical axis and is equal to the movement of the main piston. Elongation ratio of 1:2 &1:5 can be obtained.Accuracy and calibrationAll measuring ranges of the machine are calibrated within an accuracy of 1 %from 20% to 100% of each range as per IS: 1828 and BS :1610.

Load measuring system

The oil pressure in the main cylinder is also transferred to an electronic pressure transducer which gives a proportionate signal to the Data Acquisition Unit. Both, the motor for hydraulic operation and cross head motion, are controlled by push buttons and they have interlocks to prevent simultaneous working of the motors. The electrical panel is fixed on the control panel. Displacement measurement is carried out by means of a Rotary Encoder. Encoder signal is fed to the Data Acquisition Panel to get displacement in mm. Fully protected and enclosed (dust proof) high precision Sensors and Encoders are used for Load and Elongation measurement.

Alpha Chem is manufactures, exporter & suppliers Digital Compression Testing Machine.

Digital Compression Testing Machine : The special design and technical features of this machine are suitable for compression tests on concrete specimens up to 20 cm dia and 30 cm in height. We offer this Compression Testing Machine at industry leading rates to our valuable clients.

Loading Unit:

The upper platen has got a self aligning action and is attached to a screw which passes through the cross head and can be raised for lowered for initial clearance adjustmentThe lower platen rests on the jack ram and is positioned with the help of a centering pin. Loading is accomplished by the upward movement of the lower platen

Pumping Unit:

The pumping unit is separate unit connected to the jack by means of a steel connecting tube.A junction box is suitably fixed to connect the motor to the mains through a push button starter.The pumping unit is fitted with gauges. A maximum pointer is provided to facilitate taking of the reading after failure of thespecimen.The pressure gauges are fixed on the pumping unit at an angle for easy readability.The machine is fitted with a hand wheel control which enables the rate of application of load to be varied.The machine is also equipped with facilities for hand pumping in case of power failure.The electric pumping unit is fixed with a micro-switch off the motor automatically as the load on the machine approaches the rated capacity.

Specifications:

Capacity: 10 Tons, 25 Tons, 50 Tons, 100 Tons, 150 Tons, 200 Tons, 300 Ton

Alpha Chem is manufactures, exporter & suppliersDeval abrasion testing machine.

Deval abrasion testing machine : For the determination of resistance of aggregate to wear by abrasion. Two hollow cylinders, closed at one end and provided with tightly fitting covers at the other end. The inside diameter of the cylinder 20 cms and 34 cms depth. The cylinders are mounted on a shaft at an angle of 30 with the axis of rotation. The shaft rotates at 30-33 rpm through a reduction gear, coupled to a motor. Suitable for operation on 440 volts, three phase, 50 cycles, AC supply. Supplied complete with a counter and push button starter. With 12 nos cast iron spheres or steel spheres (steel balls) hardened, approx. 48 mm in diameter, each weighing 380-445 gm

Ductility Testing Machine : Ductility Testing Machine is defined as distance in cms to which a standard briquette of bitumen can be stretched before the thread breaks. The briquette is stretched at a rate of 50 mm/min. +/-2.5 mm per minute at a temperature of 27 deg.C +/-0.5 deg C. The apparatus consists of water bath with a thermostatic heater, and a circulating pump to maintain uniform water temperature . one half of the briquette molds is fixed in a fixed plate in the water bath, the other half of the briquette mold is fixed to a carrier which slides over a rotating threaded shaft with a clutch, The motor and gears to rotate the shaft are housed in a cabinet fixed above the other end of the bath. A pointer fixed to the carrier moves over. a scale graduated from 0-100 cm x 1 mm fixed on the bath with "0" (Zero) of the scale towards the fixed plates side. The rotating shaft has 2 speeds of travel for the bracket, 5 cm/min. and 1 cm/min. selected by a clutch. Water bath inside is of stainless steel with insulation and water drain cock . A heater with thermostatic control is fitted inside the water bath. Control switches for motor, stirrer, heater and indicator lamps are fixed at a convenient place on the water bath. Complete with three briquette molds and one base plate.

Compression Testing Machine 1000KN :

Alpha Chem is manufactures, exporter & suppliersCompression Testing Machine 1000KN.

Compression Testing Machine 1000KN : Capacity of the machine is 1000kN. Specimens upto 15cms cubes and 15 cms dia x 30 cms high cylinders can be accommodated. Load measurement is done by a 15 cms dial bourdon tube type hydraulic pressure gauge calibrated in 100 divisions, fitted with a maximum pointer (lag less pointer). The gauge is calibrated against an RTC tested proving ring.The machine is of channel construction, giving excellent lateral rigidity. The hydraulic loading unit is located on the base of the loading machine. The hydraulic jack is precision machined. The piston and cylinder are ground and lapped to fine tolerances. The lower platen can be centrally located on the base, and has concentric grooves for centering the specimen. Spacer is provided to test small specimens. The upper platen is mounted on a swivel arrangement for self aligning action. The pump is fitted integral on the testing machine along with oil reservoir. The hand operated pump is of two speed concentric piston type.Other Capacity : 10 Tons, 25 Tons, 50 Tons, 100 Tons, 150 Tons, 200 TonsCompression Testing Machine (Hand Operated) Four Pillar Type

Available Capacity: 10 Tons, 25 Tons, 50 Tons, 100 Tons, 150 Tons, 200 Tons

Portable Point Load Testing Machine : Portable instrument which can be used in both the laboratory or in situ to determine the rock strength index of rock samples or cores. The values required for the calculation of the rock strength index are failure load and distance between the conical points.

Parameters:

Max work pressure: 60MpaPiston diameter: dia.35mmPiston area: 9.62cm2Dimension: 380x300x620mm approx.weight: 85kg. approx.

Alpha Chem is manufactures, exporter & suppliersFlexure Testing Machine.

Flexure Testing Machine : The Flexure Strength Testing are designed to test flexural strength of concrete beams. The design provide maximum rigidity throughout their working range. The load is applied by the downward movement of the piston. A spacer is for testing different size of beams. The load is indicated on a calibrated bourdon tube type load gauge of range: 0 - 100 kN x 0.5 kN (0- 1O, 000 kgf x 50 kgf). The load gauge is calibrated against National Council for Cement and Building Materials Certified Proving Ring.

Flexure Testing Machines1. Light weight, rugged high strength frame2. Double action hydraulic pump3. Self-aligning roller assembly4. Hydraulic jack provided with retraction spring5. For testing beams of 100 x 100 x 500mm and 150 x 150 x 700mm6. Conforms to IS 516, BS 1881 and ASTM C 78 Two Models are available

Fatigue testing machine :

Alpha Chem is manufactures, exporter & suppliersFatigue testing machine.

Fatigue testing machine : Designed with utmost precision, the offered machine is manufactured using optimum quality raw materials and advanced technology. In addition to this, our machine undergoes various tests under the supervision of quality controllers, in order to ensure its flawlessness. Clients can avail this machine from us at market leading rates.

Specifications:

Speed: 0-4200 RPM (Continuous variable)Counter: Microprocessor based pre-set counterPower: 230 Volts, 50 Hz, 3 H.P. 1 Phase motorDimensions: 750(L) x 550(B) x 1170(H) approx.Weight: 135kgs approx.

Dorry Abrasion Testing Machine : The machine is used to determine the resistance of aggregate to wear by abrasion. Inadequate abrasion resistance of road-surfacing aggregates means an early loss of the texture depth required to maintain high-speed skidding resistance.

Specification :

It consists of a disc rotating about a shaft connected to a reduction gear box coupled to a motor. The disc rotates at 28-30 r.p.m. Under the rotating disc is a tray with an outlet to facilitate the removal of sand. Two conical hoppers are mounted on a bracket fixed to the circular tray. An arrangement is made for start and stop the flow of sand. Two holes are provided for mounting two specimens simultaneously. Two containers with weights are supplied to keep the specimens pressed against the rotating disc. Suitable for operation on 220 volts, 50 cycles, A.C. supply.

Alpha Chem is manufactures, exporter & suppliersTile Flexure Testing Machine.

Tile Flexure Testing Machine : Tile Flexure Testing Machine is used to determine the flexural strength of clay roofing tiles and cement concrete flooring tiles. We are one of the leading manufacturers of Tile Flexure Testing Machines. Our machines are manufactured using best raw materials to ensure good functionality and durability.Functionality : The Tile Flexure Testing Machine is a double lever loading machine where load is placed by a flow of lead metal that automatically stops as the sample breaks. The sample is mounted between rollers which are 40mm or 12mm in dia. Bearing rollers can be placed at center distances of 150, 200 or 270mm. The unit comes equipped with a 20 Kg lead metal.

Alpha Chem is manufactures, exporter & suppliers Automatic Compression Testing Machine.

Automatic Compression Testing Machine : Automatic range of 1500kN, 2000kN and 3000kN capacity compression testing machines have been designed to meet the need for reliable and consistent testing of concrete samples. All machines feature the complete automatic test cycle with a closed loop digital readout. Once the specimen parameters have been introduced, it is sufficient to press the START button to complete the test.Compression machines consist of three main parts: Frame, power pack and data acquisition & control system. Each part has been designed to manufacture machines with a high degree of mechanical stability and complies to EN 12390-4; BS 1881 and ASTM C39 (with suitable platen set) standards.Automatic test cycle with standard Rapid ApproachGraphical - LCD Data Acquisition and Control SystemMenu Driven Software for easy operationLoad vs time plot and instantaneous load rate displayedAccurate load rate control within 5 from 1 kN/sec to 20 kN /secClass 1 starting from 10% of the full rangeReady Stress Calculation for the standards of EN 12390-3, EN 12390-5, EN 12390-6, EN1338, EN1340, EN 196SI, Metric, Imperial UnitsData storage up to 256 testsRS 232 output for printer or PCFree of charge PC software for test control and advanced report printout

Frame

The frame is welded steel fabrication carrying the ball-seated 300 mm diameter upper platen which complies to EN 12390-4. Located on the loading ram which is protected from debris by a cover, the lower platen is marked for the centering of cube and cylinder specimens. The dimensions of the frame allow the testing of concrete cylinders up to 320 mm long x 160 mm diameter; 100, 150 mm and 200 mm cubes. All machines are supplied complete with 30 mm, 40mm, 50mm and 90 mm distance pieces. To test samples shorter than 150 mm extra distance pieces should be ordered. All machines are supplied with flexi-glass front and rear removable safety doors. All frames have a single acting up stroking ram with over travel protection to stop the motor when the maximum platen travel is reached.

Power Pack

The dual stage power pack which is designed to supply the required oil to the frames. Very silent power pack can load a specimen between 1 kN/sec to 20 kN/sec. A high delivery low pressure pump is used for rapid approach and a low delivery high pressure radial piston pump is used for test execution. On all power packs maximum pressure valve is used to avoid machine overloading.The main characteristics are:Dual stage pump750 W power25 litre oil capacity60-100 mm/min fast approach speed

Special Feature :

600kN, 1500kN, 2000kN & 3000kNHigh stability welded assembly50mm piston stroke with safety switchPlaten hardness of min 55 HRCDistance pieces and safety door included

Compression Testing Machine with control Panel :

Alpha Chem is manufactures, exporter & suppliers CompressionTesting Machine with control Panel.

Compression Testing Machine with control Panel : Electrically Operated Compression Testing Machine CTM which is an electric cum hand operated machine for conducting compression tests on concrete specimens up to 20cm dia and 30 cm in height. The machine caters to the essential applications of various Indian, British & American standards for compression tests.For Compression test on Concrete or similar materials. Suitable for use on Concrete Cubes of any size upto 5cm x 5cm x 5cm, 7.06 x 7.06cm, 10cm x 10cm x 10cm, and 15cm x 15cm x 15cm also on 10 x 20cm and 15 x 30cm high Concrete Cylinders. The load is applied thru hydraulick assembly.The lower platen is on the Hydraulic ram, and upper having a spherical seating is adjustable. The machine is provided with an air release valve and the load is automatically indicated on the 15 cms diam hydraulic pressure calibrated against an N.C.B.M. tested Proving Ring and fitted with a legless max pointer in addition to the live pointer.This is a hydraulic, electrically operated unit, designed for conducting compression tests on concrete specimens up to 20 cm. Diameter (or width and depth) and 30 cm, in height and also rocks and various other materials. Cold Crushing Strength (CCS) test is also possible.The machine consists of a steel cross head and cast iron base with two pillars connecting the base and cross head by means of nuts. The hydraulic jack is fixed to the base. The upper platen has got a self aligning action and is attached to a screw which passes through the cross head and can be raised or lowered for initial clearance adjustment. The lower platen rests on the jack ram and is positioned with the help of a centering pin.Loading is accomplished by the upward movement of the with the help of a centering pin. Loading is accomplished by the upward movement of the motorized pumping unit is of plunger type and is connected to the jack by means of a steel connecting tube.A maximum red pointer is provided to facilitate taking of the readings after failure of specimens. The pressure gauges of 20 cm diameter with isolating valves are fixed on the pumping unit at an angle for easy readability.The machine is fitted with control which enables the rate of application of load to be varied. The machine is equipped with facilities for hand operation as well.The electrical pumping unit is fitted with three micro switches one for each pressure gauge and will switch off the machine automatically as the load on the machine approaches its full capacity of the gauge in case the isolating valves are not operated. This will protect the pressure gauges and the whole unit so that in case of break down of power supply, the machine will stop and will not restart unless the starting switch is operated.The machine satisfies the essential specifications of Indian Standard No. 516-1959. For operation on415 Volts, 3-ph or 230 Volts, 1-ph A.C.

Los Angeles Abrasion Testing Machine : The machine is used for testing crushed slag, crushed and uncrushed gravel for resistance to abrasion. The aim of the test is to find the percentage wear due to the relative rubbing action between the aggregates and steel balls as abrasive charge. The oven-dried arrangements are weighted and rotated along with abrasive charge in the machine for the 500 or 1000 revolutions and percentage of wear so found out its reported as Los angeles abrasion value.

General Description & Specifications: Consists of a hollow steel cylinder, closed at both ends, having an inside diameter of 700mm and inside length of 500mm. The cylinder mounted on a sturdy frame on ball bearings. The opening is closed dust tight with a removable bolted cover in place. A detachable shelf which extends through the drum catches the abrasive charge and does not allow it to fall on the cover. The drum is rotated at a speed of 30-33 RPM by an electric motor through a heavy duty reduction gear. Fitted with revolution counter and push button starter. Supplied complete with a tray for collection of the material. Abrasive charge consists of set of 12 Nos. cast iron spheres or steel spheres (hardened steel balls) approximately 48mm diameter each weigh between 390-445 gram. Complete as above.

Optional Accesories:

The following accessories are not part of the standard supply and are supplied at an extra cost.Laboratory Oven.Test Sieve 1.7mmElectronic Balance of 15 kg x 1 gmSpare Abrasive charge

Universal Testing Machine :

Alpha Chem is manufactures, exporter & suppliersUniversal Testing Machine.Universal Testing Machine : Loading frameThe base has a hydraulic cylinder at Its center, and two main screws at both ends. The middle cross head is mounted on screws through main nuts. The middle cross head can be moved up or down with a speed of 400 mm/min through chain transmission and geared motor to adjust the initial tensile / compression clearance. On the piston rests an assembly of upper, lower crosshead and two columns. The individually lapped cylinder piston assembly ensures smooth transfer of force with minimum friction.

Hydraulic system

Hydraulic circuit consists of hydraulic power pack having a directly driven radial plunger pump, which gives a continuous non pulsating flow of oil pressure upto 210 bar. Oil filter, Oil strainer, Air breather, Oil level Indicator, Drain plug are provided on the power pack. A pressure compensated needle type flow control valve is provided to control the oil flow to cylinder there by achieving desired piston speed. Infinitely variable speeds can be obtained with the help of valves.

Load measuring system

The oil pressure in the main cylinder Is transferred to the small dynamometer cylinder. The dynamometer piston is kept rotating at a slow speed to ensure dynamic friction condition. The piston exerts a force proportionate to the pressure on the hanger connected to one arm of the pendulum, through an auto range selecting lever system. This force deflects the pendulum. The range selection can be effected by simply turning a knob, provided outside of the panel. An effective damping arrangement is provided to ensure slow return of the pendulum after sudden fracture of the test specimen.

Load indicating arrangement

The pendulum lever pushes rack which slides over two pulleys. The rack movement is proportionate to the load. A pinion in engagement with the rack rotates and moves the pointer fixed to its shaft. The pointer moves over a large dial indicating the load. A window type dial is provided for easy and clear change of the load range.

Recording System

A continuous roll type load elongation recorder is provided for plotting a load - elongation graph. Load is plotted by the horizontal movement of the rack. Elongation is plotted on the vertical axis and is equal to the movement of the main piston. Elongation ratio of 1:2 &1:5 can be obtained.Accuracy and calibrationAll measuring ranges of the machine are calibrated within an accuracy of 1 %from 20% to 100% of each range as per IS: 1828 and BS :1610.

Load measuring system

The oil pressure in the main cylinder is also transferred to an electronic pressure transducer which gives a proportionate signal to the Data Acquisition Unit. Both, the motor for hydraulic operation and cross head motion, are controlled by push buttons and they have interlocks to prevent simultaneous working of the motors. The electrical panel is fixed on the control panel. Displacement measurement is carried out by means of a Rotary Encoder. Encoder signal is fed to the Data Acquisition Panel to get displacement in mm. Fully protected and enclosed (dust proof) high precision Sensors and Encoders are used for Load and Elongation measurement.

Alpha Chem is manufactures, exporter & suppliers Digital Compression Testing Machine.

Digital Compression Testing Machine : The special design and technical features of this machine are suitable for compression tests on concrete specimens up to 20 cm dia and 30 cm in height. We offer this Compression Testing Machine at industry leading rates to our valuable clients.

Loading Unit:

The upper platen has got a self aligning action and is attached to a screw which passes through the cross head and can be raised for lowered for initial clearance adjustmentThe lower platen rests on the jack ram and is positioned with the help of a centering pin. Loading is accomplished by the upward movement of the lower platen

Pumping Unit:

The pumping unit is separate unit connected to the jack by means of a steel connecting tube.A junction box is suitably fixed to connect the motor to the mains through a push button starter.The pumping unit is fitted with gauges. A maximum pointer is provided to facilitate taking of the reading after failure of thespecimen.The pressure gauges are fixed on the pumping unit at an angle for easy readability.The machine is fitted with a hand wheel control which enables the rate of application of load to be varied.The machine is also equipped with facilities for hand pumping in case of power failure.The electric pumping unit is fixed with a micro-switch off the motor automatically as the load on the machine approaches the rated capacity.

Specifications:

Capacity: 10 Tons, 25 Tons, 50 Tons, 100 Tons, 150 Tons, 200 Tons, 300 Ton

Alpha Chem is manufactures, exporter & suppliersDeval abrasion testing machine.

Deval abrasion testing machine : For the determination of resistance of aggregate to wear by abrasion. Two hollow cylinders, closed at one end and provided with tightly fitting covers at the other end. The inside diameter of the cylinder 20 cms and 34 cms depth. The cylinders are mounted on a shaft at an angle of 30 with the axis of rotation. The shaft rotates at 30-33 rpm through a reduction gear, coupled to a motor. Suitable for operation on 440 volts, three phase, 50 cycles, AC supply. Supplied complete with a counter and push button starter. With 12 nos cast iron spheres or steel spheres (steel balls) hardened, approx. 48 mm in diameter, each weighing 380-445 gm