The PC controlled thread friction coefficient tester is mainly used to test the mechanical properties of bolts, screws and double-screw bolt made of carbon steel and alloy steel. This machine is applicable to the following situations: threaded fasteners effective torque, the evaluation test of clamping force and friction coefficient , new design, craft changing, material changing, goods supply identification, products quality inspection and so on. The test software interface uses virtual instrument technology in Windows environment, and it is user-friendly and easy to operate.
 
Features

· The full range of torque and full force is not split.

· The test data is stored in the database.
· After the test, the test data can be analyzed, such as automatic scaling, data display on every point.
· Interface uses virtual instrument technology. Test curve is displayed in analog oscilloscope display mode. The interface provides dynamic display  and control of torque, twist angle and test curve.
· The twist angle can be arbitrarily set, and automatically maintain when reaching the set value.
· The tightening force can be arbitrarily set, and automatically maintain when reaching the set value .
· Maximum torque value and minimum torque holding function.
· Generate clamping force - torque diagram and twist angle - torque diagram.
· Enter the bolt diameter to participate in the strength value calculation. Automatically obtain mechanical performance indicators and print out a complete test report. Print data results to facilitate comprehensive analysis of a variety of test data .

Structure
The test machine consists mainly of test bed, slide track, static twist device, T type harness, load device, motion torsion device (100N. m), motor reducer and motion torsion device (500N.m), electrical control cabinet etc.
 
Technical Parameters

Items	Parameters
Dynamic torque measurement range	(10～500)Nm
Static torque measurement range	(5～100)Nm
Torque measurement accuracy	±1%
Torque angle measurement resolution	0.025°
Torque angle measurement accuracy	±0.5% .FS
Active chuck speed	(1～50)r/min
Maximum clamping load	300 kN
Clamping load test range	(10～300)kN
Clamping load accuracy	±1%
Torsion direction	Forward and backward
Thread measurement range	M6～M12（6～12 grades）
Instrument dimension	(2000×450×1100)mm
Electrical control cabinet dimension	(400×400×600)mm
Computer control cabinet dimension	（600×800×1800)mm
Device power supply	Single-phase AC 220V ，50Hz ，1kW Three phase AC 380V ，50Hz ，5kW