This is a bench top educational machine for torsion test of small specimens.

It consists of two parallel members 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 shaft with an arm attached to a load cell for measurement of torsion in both forward and reverse direction. This torsion shaft unit is slideable 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.

  • Determination of modulus of rigidity and yield shear stress.
  • Determination of modulus of rupture in torsion.
  • Reversed torsion test to determine torsion hysteresis.
. Capacity  :  30 Nm.             
. Drive shaft ends :  12.7 mm (1/2 in) square.        
. Drive sockets :  1/2 Whitworth hexagonal for hexagonal head 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.          
. Power supply  :  220V 1Ph 50Hz. Other power supply is available on request.  
.  Calibrating arm with weight hanger and weight hanger and weights.      
.  TM 201- 050   Computer Interface            
This includes sensor without indicator computer interface unit and software for data display and analysis
by computer (separately supplied).            
Net (unpacked) shipping dimensions WxLxH :  40 x 140 x 45 cm (without gear motor)  
Net weight :  Approx. 110 kg          
Net (unpacked) shipping dimensions WxLxH :  40 x 160 x 45 cm (with gear motor)  
Net weight weight :  Approx. 130 kg