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Torque-Tension Load Cell

Torque-Tension Load Cell

The Series RH 9000 Fastener Torque Tension Load Cells are ideal for auditing and analyzing threaded fastener characteristics in production lot testing or in research and development studies!

Often referred to as a Research Head, this load cell is two transducers in one: a strain gage bridge to measure the clamp load generated when the fastener is tightened, and a thread torque bridge to measure the amount of torque seen by the nut.

By breaking out the thread torque data from the torque applied to the fastener, you can calculate the underhead torque, as well as friction coefficients for underhead and thread areas of the bolted joint.

This complete line of fastener testing load cells provides a signal proportional to the tension developed in a test fastener when the tightening torque is applied. In addition, the torque-tension version measures thread torque (pitch torque plus thread friction torque) at the same time. The tension or torque-tension output signals from the load cell are read using a conventional strain gage readout device or recorded by a data acquisition device. These load cells also can serve as an integral part of a torque-angle-tension fastener test system when used with a torque-angle sensor and a data acquisition instrument. Recommended is the Model 3200 LabMaster Professional Series from PCB® Load & Torque, Inc.

 
Model Number Thread Torque Capacity Clamp Load Capacity
059400-01024 20 Nm (15 lb-ft) 20 kN (4,496 lbf)
059500-01044 60 Nm (44 lb-ft) 40 kN (8,992 lbf
059600-01104 150 Nm (111 lb-ft 100 kN (22,481 lbf)
059625-01304 800 Nm (590 lb-ft) 300 kN (67,443 lbf
059650-01604 2,000 Nm (1,475 lb-ft) 600 kN (134,886 lbf
059720-01095 4,000 Nm (2,950 lb-ft) 900 kN (202,330 lbf
059740-01185 8,000 Nm (5,901 lb-ft 1,800 kN (404,658 lbf)
 
Specifications
Output at Rated Capacity 2.0 mV/V, nominal
Overload Capacity 50% of rated load
Non-Linearity ±0.2% of Full Scale (FS)
Hysteresis ±0.2% of FS
Zero Balance ±1% of FS
Excitation Voltage ±10 VDC or AC RMS, max.
Bridge Resistance 350 ohms, full bridge, bonded strain gage
Compensated Temperature Range 70 to 150 °F
Useable Temperature Range 0 to 200 °F
Temperature Effect on Zero ±0.01% of FS / °F
Temperature Effect on Output ±0.1% of Reading / °F