Additional information
| Brand | Essom |
|---|
Torsion Testing Machine: 30 N-m
This is a bench top educational machine for torsion test of small specimens.
This torsion testing machine consists of two parallel stainless steel tubes fixed together at both ends. At one end is a worm gear reducer where a torsion load is applied, and angular displacement measuring devices. At the other end is a torsion tubes with an arm attached to a load cell for measurement of torsion in both forward and reverse direction. This torsion shaft unit is slidable along the tubes to take up different length specimen. Both worm gear and torsion shaft have drive sockets for hexagonal head specimen. Round specimen requires special adapters. Torque is applied manually.
The equipment is designed such that torsion shaft angular displacement, or parallel tubes and loading arm deflections are negligible under maximum load. Angle of twist on the specimen is indicated by angular scales on the worm gear reducer shafts. A revolution counter is provided at the gear box to measure total input revolutions.
Instruction manual is also included.
TYPICAL EXPERIMENTS
- Determination of modulus of rigidity and yield shear stress.
- Determination of modulus of rupture in torsion.
- Reversed torsion test to determine torsion hysteresis.
TECHNICAL DATA
| Capacity | 30 Nm |
| Drive shaft ends | 12.7 mm (1/2 in) square |
| Drive sockets | 3/8 in. whitworth for hexagonal specimen. |
| Maximum specimen length | 250 mm |
| Input shaft rotation: | |
| – Revolution counter | 5 digits |
| – Circular scale | 360 x 1 degree graduation |
| Specimen angle of twist | |
| – Circular scale | 360 x 1 degree reading |
| – Indirect reading by circular scale on input shaft: | 1/60 degree reading |
| Torque digital display | 0.1 N-m resolution. |
| Software for data display and analysis by computer (separately supplied). | |
| Power supply | 220V, 1 Ph, 50Hz. Other power supply is available on request. |
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The machine has four columns in two planes. Load application is by a hand operated hydraulic jack with measuring instruments for load and deflection.
Test accessories and specimens are available as optional items.
Instruction manual is also included.
TYPICAL EXPERIMENTS- Tension
- Compression
- Bending
- Deep draw
- Shear
- Brinell hardness
- Spring compression
TECHNICAL DATACapacity 50 kN. Maximum crosshead travel 50 mm Measuring instruments – Load Force digital display – Extension Dial indicator 0-20 mm x 0.01 mm. graduation with magnetic holder Software for data display and analysis by computer (separately supplied). Power supply (optional version) 220V, 1 Ph, 50 Hz. Other power supply is available on request. (0 reviews) -
Strength and Property of MaterialsThick Cylinder
The equipment is used for studying a stress profile in the wall of a thick cylinder.
Two halves of thick aluminum alloy cylinders are cemented and clamped together. A hand operated hydraulic pump transmits pressure to the inside of the cylinders via the clamping bolt. The pressure is indicated by a pressure gauge. Strain gauges are of the same gauge factor and the gauges are attached radially and circumferentially along the wall thickness and filled with jointing material. Additional strain gauges are attached on the inside and outside surfaces of the cylinder. Each strain gauge is wired to form a full bridge with temperature compensation gauge and zero adjustment in a bridge box with strain gauge indicator.
Instruction manual is also included.
TYPICAL EXPERIMENTS- Measurement of strains, hence stresses, along the cylinder wall thickness.
- Comparison of the actual strain readings with theoretical values.
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