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Steel tube scaffold couplers manufactured by my company, the materials is not lower than KTH330-08
Name RIGHT ANGLE COUPLER rotary buckle butt-jointed fastening pieces
Torque bolt knob N.m
(kgf.m) 40(˜4.0)
Sliding test Load KN(kgf) 7(˜720)
10(˜1020) 7(˜720)
10(˜1020)
Displacement (mm) ?1:=7.0
?2:=0.5 ?1:=7.0
?2:=0.5
Anti-damage experimentsKN(kgf) 25(˜2550) 17(˜1730)
Torsional rigidity test Torque N.m
(kgf.m) 900(91.8)
Displacement or rotation
(mm)(?) <4
Tensile test Load
KN(kgf) 4(˜4.0)
Displacement (mm) ?:=2.0
Compression test
KN(kgf)