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Jinan Heng Rui Jin Testing Machine Co.,Ltd

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Industry News · Home > Industry News > Testing Machine for Steel Pipe, Scaffold Couplers

Testing Machine for Steel Pipe, Scaffold Couplers

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WDW-100J, 120J, 100KN,120KN testing machine for steel tube, scaffold couplers



  • GB15831-2006 steel tube, scaffold couplers
  • ISO4054-1980 couplers, loose spigots and base-plates --- requirement and examining rules
  • GB 24911-2010 bowl-couplers type steel tube scaffolding member
  • JGJ231-2010 technical slpecification for safety of disk lock steel tubular scaffold in construction
  • GB/T3091-2008 welded steel pipes for low pressure liquid delivery (ISO559:1991,NEQ)


Function of testing machine

  • Fastener made of capable of forging and casting or cast steel used in scaffold, headframe, frame of temple, in which Nominal diameter of steel tube is 48.3mm or 51.0mm, which is used in building engineering, municipal administration, water conservacy, chemical industry, metallurgy, coal industry, ship engineering,
  •  Steel pipe scaffold construction member is used in Cuplock steel tube scaffold, formwork supporting frame.
  • Wheel buckle type, disc type, card type scaffold construction member.


Testing Item and content of steel pipe scaffold fastener:



  • Mechanics property testing for Right angle fastener: anti-slide preformance testing, anti destruction performance testing, torsionnal stiffness performance testing
  • Mechanics performance testing for Revolving fastener: anti-slide performance testing, anti destruction performance testing.
  • Tensile performance testing for sleeving coupler.
  •  Pressing performance for bottom seating
  •  Physical tensile testing for T type screw: applying 600KN hyraulic pressure universal testing machine
  • Mechanics performance testing for fastener, casting material: applying 300KN, 600KN hydraulic pressure universal testing machine or electronic universal testing machine.




  • Testing and researching for upper bowl strength, lower bowl welding strength, strength of join of cross bar, adjustable seating pressing strength and other mechanic performance
  • Testing and researching for socket type frog, anti-draw property of thumb lock
  • Mechanics testing and researching for fastener and material
  • Precising auto-control and data collecting system, realizing entire digital adjusting of data collecting and process controling. 
  • With multi-control mode, such as auto-keep loading, force, deformation controlling, circling controlling, auto-edite controlling and so on.
  • According to GB, ISO, JIS, ASTM, DIN, BS and international standards for testing and data calibration.


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