What is my Manipulators Wrist Torque?
The maximum wrist torque for all Schilling manipulators is very close to the same, as they all use the same hydraulic motor. A new motor operating at 207 bar (3,000 psi) at 18C (70 F) will achieve about 245 Nm (180 lb/ft) of torque. The best test of health for a wrist motor is to see how slowly you can rotate the motor without stalling. A good motor will continuously rotate at less than 4 RPM. A wrist motor should not have any leakage to return. A motor that leaks to return has either been assembled wrong or the driveshaft seals are damaged. The wrist torque cannot be adjusted; however, since the torque is a function of hydraulic pressure, adjusting the main hydraulic supply will vary the maximum achievable torque. This will affect all the joints, so lift capacity will be reduced proportionally. For specific torque amounts, please see the Manipulator Comparison Chart for more details.
