Train Parts & Accessories Casting Coupler

Our freight wagon automatic coupler is the core connecting component of railway cargo vehicle draft gear system, manufactured via precision casting with high-alloy cast steel material. 

It realizes automatic locking and connection between adjacent freight wagons, transmitting traction force and buffering collision impact during train starting, running and braking.

The whole coupler undergoes strict normalizing heat treatment, greatly improving overall toughness and anti-fracture performance, which can withstand huge tensile force and frequent collision impact of heavy haul freight trains. 

The contact surface is treated with wear-resistant coating to reduce abrasion during long-term coupling and decoupling, effectively extending service life.

Optimized lock tongue and interlock structure ensures tight locking without accidental separation during bumpy operation. 

Perfectly matched with various draft gear buffer assemblies, forming a complete coupler buffer system for freight wagons.