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Applied Machines Manufacturer,Supplier and Exporter in India

Product Code : EL-TWL-9188
Jlab Export is a leading Applied Machines Manufacturer,and suppliers in India

Applied Machines brings together the apparatus of an applied mechanics lab: simple machines, force and beam apparatus and structure models. It runs from the wheel and axle, screw jack, pulley blocks and worm and worm wheel to the jib crane, force table and a jointed roof truss. A materials lab group adds heat treatment and metallography equipment, and customised machines are built on request.

What the Range Includes

Simple machines	Simple wheel and axle, screw jack, worm and worm wheel, bell crank lever, winch crab
Pulleys	Pulley block, double sleeve pulley block, first and second systems of pulleys
Drives and gears	Belt drive (single speed model), three stage spur gear model
Forces	Parallelogram law of forces, polygon law of forces, universal force table, jib crane
Friction	Inclined plane and friction slide apparatus
Beams and structures	Bending of beam apparatus, shear force apparatus, simply supported beam, jointed roof truss
Materials lab equipment	Specimen cut-off machine, heat treatment furnace, crucible, metallurgical microscope, single disc metallurgical polishing machine, Jominy end quench machine
Materials lab supplies	Set of specimens of different metals, alumina paste, velvet cloth
Customised machines	Built on request
Minimum order quantity	1 unit
Dispatch time	Usually 14–18 working days
Manufacturer	JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India

Practicals in the Applied Mechanics Lab

Most simple-machine practicals follow one method. Students hang a load on the machine, add effort until the load just rises and note both values. They repeat this for heavier loads built up from Hangers with Slotted Weights. Load divided by effort gives the mechanical advantage. The distance moved by the effort divided by the distance moved by the load gives the velocity ratio. Efficiency is the mechanical advantage divided by the velocity ratio.

On the force apparatus, students set three or more weights in balance and check the parallelogram and polygon laws by drawing the forces to scale. On the jib crane they read the forces in the jib and tie and compare them with a triangle of forces. Beam practicals cover support reactions, the shear force at a section and the deflection of a loaded beam.

In the materials group, a specimen is cut, heat treated in the furnace, then polished on the single disc machine with alumina paste on velvet cloth and etched. Students examine it under a metallurgical microscope such as the Monocular Upright Metallurgical Microscope. Hardness before and after treatment can be compared on the Rockwell Hardness Tester. The Jominy machine shows how hardness falls with distance from the quenched end of a bar.

Frequently Asked Questions

What is the law of a machine?
Plot effort against load for several readings and the points fall close to a straight line, P = mW + C. Here P is the effort, W the load, m the slope of the line and C the effort needed at no load to overcome friction.

Why does a screw jack hold its load when the effort is removed?
Friction in the thread is high enough to stop the load running back. Any machine with an efficiency below one half is self-locking for this reason. The screw jack and the worm and worm wheel usually work in this region, so their efficiency is low.

How is the velocity ratio found without measuring distances?
Work it out from the geometry. For a wheel and axle it is the wheel diameter divided by the axle diameter. For a screw jack it is the circumference of the effort circle divided by the lead of the screw. Then check the figure against measured movements.