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It is suitable for the tensile and torsion performance test of high lock nuts. The test content includes the tightening torque, the unscrewing torque, the pre-tightening force and the loosening torque. The tightening torque refers to the maximum torque during screwing in, and the value area can be set; the loosening torque refers to the rotating torque under no axial load, that is, the maximum or minimum torque in a screw-out area, and the value area can be set . The total friction parameter µtotal, thread friction parameter µ thread, end face friction coefficient µ end face, tightening coeffi......
1. The testing machine is manufactured according to the standard of JB/T 9370-1999 "Technical Conditions for Torsion Testing Machines".
2. The testing machine is based on GB/T10128-1998 "Metal room temperature torsion test method", GJB715.13 "Pre-tightening test method for installation of shaped fasteners", MIL-STD-1312, Test16 "Pre-tightening test method" and other standards Conduct experiments to provide data.
3. The testing machine can also provide data for testing according to European standards such as EN-14399-1:2005, EN-14399-3～6:2006 and ISO 898-1:1999.
Test machine model | EHLN-5504-202 | EHLN-5205-502 | EHLN-5505-203 |
Maximum pull（kN） | 50 | 200 | 500 |
Maximum torque（N.m） | 200 | 500 | 2000 |
Measuring range | 0.2～100% | ||
measurement accuracy | Better than the indicated value ±1%, ±0.5% | ||
Speed range （°/min) | 0.01～360 (expandable to 720) or non-standard customization | ||
Pull force, torque resolution | The whole process is not divided and the resolution is unchanged ±1/300000FS (full scale) | ||
Bolt specification（mm） | M3～12 | M6～20 | M8～32 |
Bolt length(mm） | 20～100 | 20～150 | 40～200 |
Main motor power（kW） | 1.0KW | 2.0KW | 3.0KW |
Remarks: The company reserves the right to upgrade the instrument, without notice after the update, please ask for details when you consult. | |||
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