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Semi Automatic Compression Testing Machine Manufacturer,Supplier and Exporter in India

Product Code : EL-CACTE-9448
Jlab Export is a leading Semi Automatic Compression Testing Machine Manufacturer,and suppliers in India

Semi automatic here means the motor does the pumping while the operator controls the pace. An electric pumping unit with a control knob drives the ram, and a hand pump is fitted as well. Bourdon tube load gauges with a maximum load pointer show the load. Micro switches stop the motor close to full capacity.

Specifications

Operation	Electrically cum manually (hand) operated
Pace control	Control knob, set by the operator
Load gauges	Bourdon tube type, with maximum load pointer
Calibration	Load gauges calibrated against proving rings
Overload protection	Micro switches stop the motor near maximum capacity
After power failure	Relays prevent automatic restart
Hand pump	Fitted
Minimum order quantity	1 unit
Dispatch time	Usually 14–18 working days
Manufacturer	JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India

Load Checks and Loading Rate Experiments

A teacher can use this machine to show how a load reading is verified. Students set a ring from the Proving Rings between the platens and load it in steps. At each step they read the ring dial and convert the deflection with its chart. Plotting gauge reading against true load shows any error across the scale.

A second exercise looks at loading pace. Pairs of cubes from one batch are crushed at a slow and at a fast knob setting, and the fast ones usually read higher. The same idea can be shown on a Universal Testing Machine, where students run compression tests on other materials.

Frequently Asked Questions

What makes this machine semi automatic?
The electric pumping unit raises the load, and the micro switches stop the motor near full capacity on their own. The operator still chooses the loading pace with the control knob and watches the gauge, so the test is part machine and part manual.

Should cubes be tested wet or dry?
Test them soon after they come out of the curing tank, while they are still damp. Wipe off surface water and grit first, because grit on a loaded face concentrates the load and can crack the cube early.

Why must the cube be centred on the platen?
An off-centre cube takes more load on one side, so it cracks early on that side and gives a low, misleading strength. Measure in from the platen edges and centre the cube before raising the ram.