Function summary:
ETT-B series fastener friction coefficient tester is a new generation of bolt and nut friction coefficient test system independently developed by Wanwei，It is used to test the total torque, end torque, thread torque, total friction coefficient, end friction coefficient and thread friction coefficient of bolts and nuts，Can meet the threaded fastener fastening general rules, fastener torque - clamping force test and other standards related provisions，And can automatically measure the fastening torque, thread torque, bearing surface torque, fastening shaft force, torque coefficient K, total friction coefficient μtot, thread friction coefficient μth, bearing surface friction coefficient μb and other bolt and nut mechanical properties。
Relevant standards:
DIN946 - Determination of friction coefficient of bolts and nuts under specified conditions
DIN980 metal lock nut type principle and mechanical properties
DIN6914-1989 High strength large hexagon head bolt
DIN6915-1989 High-strength hexagon nuts for bolt connections of steel structures
EN14399-2-2005 Preloaded high-strength structural bolt coupling -- Part 2 -- Preloaded compliance test
DIN6916-1989 High strength bolted connections of steel structures - round washers
EN14399-3-2005 Preloaded high-strength structural bolt couples-Part 3 HR systems-Foreword to the list of bolts and nuts for coupling couples-EN14399-3-2005
EN14399-4-2005 Preloaded high-strength structural bolting pairs -- Part 4 HR systems -- bolts and nuts for coupling pairs
GB/T 3098.1-2010 Mechanical properties of fasteners bolts, screws and studs
GB/T32076.2-2015 Preloads-Connection pairs for high-strength bolted structures - Part 2 Preload adaptability
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
ISO898.1-2009 Mechanical properties of fasteners cast in carbon steel and cast steel - Part 1: Bolts
GB/T 6170-2015 Hexagon nut type 1
HB7596-2011 "Test method for MJ thread self-locking nuts with applicable temperature not higher than 425℃"
Verification regulation of JJG 269-2006 torsion testing machine
Technical parameter
型号 ETT202B ETT502B ETT103B ETT203B ETT303B ETT503B
accuracy level 1级 Level 1 level 1 level 1 level 1 level 1
Dynamic torque (N·m) 200 500 1000 2000 200 & 3000 200 & 5000
Measuring range 2～200 5～500 10～1000 20～2000 2～200 & 30～3000 2～200 & 50～5000
Torque indication ±1% ±1% ±1% ±1% ±1% ±1%
Torque resolution (N·m) 0.001 0.001 0.002 0.004 0.001&0.006 0.001&0.01
Twisting speed (r/min) 0～30 0～30 0～20 0～20 0～15 0～15
Torsional velocity accuracy ±1% ±1% ±1% ±1% ±1% ±1%
Maximum axial force (kN) 100 200 300 500 100 & 600 100 & 800
Axial resolution (N) 1 1 1 1 1 & 2 1 & 2
Static torque (N·m) 100 300 500 1000 1800 3000
Static and torsional resolution (N·m) 0.001 0.001 0.001 0.002 0.004 0.006
Sample size M5 to M12 M5 to M16 M5 to M22 M5 to M27 M5 to M12 & M14 to M30M5 to M12 & M14～M36
Motor power (kW) 1 2 4 5 7.5 7.5
Overall dimensions (mm) 1500×600×1080 1500×600×1150 1500×600×12001760×700×12802100×800×13602100×800×1360
Equipment weight (kg) 500 550 700 850 1150 1200
