Functional use:

       The patented ETT-C series fastener tension and torsion testing machine is used for self-locking nut conventional locking moment test, moment loading test, axial force loading test and high locking nut locking moment test, loosening moment test, screwing moment test, pre-tightening moment test and loosening moment test。The testing machine can automatically unload the clamping force。

Meet the criteria:

• Verification regulation of JJG 269-2006 torsion testing machine

• DIN980-1987 Type principle and mechanical properties of metal lock nuts

• GB/T 3098.1-2010 Mechanical properties of fasteners bolts, screws and studs

• GB/T 5277-1985 Fasteners bolts and screws through holes

• GB/T 5782-2000 hexagon head bolt

• GB/T 16823.1-1997 Stress cross-sectional area and bearing area of threaded fasteners

• GB/T 16823.2-1997 General rules for fastening threaded fasteners

• GB/T 16823.3-2010 Fastener torque - clamping force test

• GB/T 32076.3-2015 Preloaded high-strength bolted structural connection pairs - Part 3 HR type large hexagon head bolt and nut connection pairs

• GB/T 32076.4-2015 Preloaded high-strength bolted structural connection - Part 4 HV type large hexagon head bolt and nut connection

• GB/T 32076.7-2015 Preloaded high-strength bolt structure connection pair - Part 7 HV chamfered washers

• ISO 2320-2015 Preset torque lock nut mechanical properties

• ISO 16047-2013 Standard for tightening torque and clamping force

• GB/T 6170-2015 Hexagon nut type 1

  
  

Technical parameters: