Drop forged double coupler

Our Drop Forged Couplers are manufactured by a modern rapid production system.

The materials employed are principally mild steels / Forged Steels.

all the scaffolding couplers in our factory are tested to resist corrosion having a complete zinc coating with chromate passivation.

Product technology upgrade, adopting anti loosening structure
Additionally, all scaffolding couplers are supplied with fully captive nuts.

We operate a rigorous quality assurance policy.

Standard: BS1139/EN74
Specification:48.3*48.3mm
Weight:0.98kg
Material: Q235
Surface treatment: Electro-galvanized/ hot dipped galvanized

Product technology upgrade, adopting anti loosening structure

Drop Forged Double Coupler SPECIFICATION:48.3*48.3mm WEIGHT: 0.98kg MATERIAL: Q235 SURFACE:Hot Dipped galvanized STANDARD: BS1139,EN74	Drop Forged Swivel Coupler SPECIFICATION:48.3*48.3mm WEIGHT:1.15kg MATERIAL: Q235 SURFACE:Hot Dipped galvanized STANDARD: BS1139,EN74	Drop Forged Joint Pin SPECIFICATION:48.3mm WEIGHT:1.12kg MATERIAL: Q235 SURFACE: Hot Dipped galvanized STANDARD: BS1139,EN74
Drop Forged Girder Coupler SPECIFICATION:48.3mm WEIGHT: 1.5kg MATERIAL: Q235 SURFACE: :Hot Dipped galvanized STANDARD: BS1139,EN74	Drop Forged Putlog Coupler SPECIFICATION:48.3*48.3mm WEIGHT:0.65kg MATERIAL: Q235 SURFACE::Hot Dipped galvanized STANDARD: BS1139,EN74	Board Retaining Coupler SPECIFICATION:48.3mm WEIGHT:0.63kg MATERIAL: Q235 SURFACE:Hot Dipped galvanized STANDARD: BS1139
Drop Forged Half Coupler SPECIFICATION:48.3mm WEIGHT: 0.65kg MATERIAL: Q235 SURFACE: :Hot Dipped galvanized STANDARD: BS1139,EN74	Drop Forged U-Type Coupler SPECIFICATION:48.3mm WEIGHT: 0.7kg MATERIAL: Q235 SURFACE: :Hot Dipped galvanized STANDARD: BS1139,EN74	British Sleeve Coupler SPECIFICATION:48.3mm WEIGHT: 1.0kg MATERIAL: Q235 SURFACE: :Hot Dipped galvanized STANDARD: BS1139,EN74

Packaging:



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Testing Center
Our company's testing center has various experimental equipment, including Rockwell hardness testers,

metallographic microscopes, coordinate measuring machines, yield testing benches, bending testers, tensile

testers, high-density ultrasonic flaw detectors, light cutting microscopes, vertical optical meters, and other

professional equipment; The testing center currently has 15 professional testing personnel, including 5 quality

engineers and 2 quality chief engineers, all of whom have higher degrees.

HUNAN LIANGMING METAL MATERIAL CO.,LTD was founded in 2009,which is a professional manufacturer and exporter of scaffolding material,steel pipes and pipe fittings.Its headquarter located in Changsha city,Hunan province and production base located in Daqiuzhuang town,Jinghai District,Tianjin.

Our main products is scaffolding pipe, steel plank, coupler and ringlock system,We have 3 automatic production lines for steel plank ,3 automatic production lines for scaffolding pipe,5 automatic production lines for steel prop,and more than 80 pcs advanced equipment for cutting,drilling,welding,painting and package.Through the integration of the tow technology,our scaffolding took the lead in the realization of the whole pipeline operation mode,and part of the production equipment achieves intelligent.for now,our production capacity is about 200000 Tons,including steel prop,frame,scaffolding system,jack base,plank and other accessories.our products are exported to Asia,North America,Oceania and Europe.

Our scaffolding strictly implement the requirements of ISO 9001 quality management system,adhering to the implementation of quality strategy,leading the development of the industry "business philosophy,toprovide you withsatisfactory and reliable products. 

We always try our best to provide the best solution and the best service to our valuable clients efficiently.