Description

1. Test standard
GB/T*********8 electronic universal testing machine
JJG*******4 verification regulation of tension, compression and universal testing machines
GB/T*********0 bowl-coupler type steel tube scaffolding members
GB/T ****1****6 steel tube scaffold couplers
 
2. Applications
It is mainly used to test mechanical performance of scaffold couplers made of malleable cast iron or cast steel with diameter various from *8.3mm to *1mm.
Max. Tensile force, tensile strength, deformation and elongation of Couplers or fastenings, used in the industries like municipal administration, water conservancy, chemical industry, metallurgy, coal and watercraft, etc, can be examined and tested by the testing machine as well.
Strength of bell shape cap, bowl shape socket, flat tube cross joint, weld strength of flat tube cross joint and compression strength of jack support etc.
 
3. Features
1) Adopting aluminum alloy cover, with attractive streamline structure
2) lead screws bear tension force only to prolong life-span and stiff stability
3) Adopting original ball screw loading mode. Interval is eliminated by double nut to make sure high rigidity of frame.
4) Adopting AC servo motor and driver, low noise precise planetary reducer, small volume, high efficiency, low noise, high accelerated speed, high reliable and less adjustment link.
5) Speed can be adjusted freely from 0.*1mm/min to **0mm/min quickly and easily.
6) Closed loop control of constant displacement, constant force and constant strain, high antijamming capability and stability.
 
4. Brief introductions of relative test requirements