SAINEER screw buffer chain coupler follows UIC European industrial rail standard, specially developed for low-speed narrow-gauge factory, mine and yard rail vehicles, maximum operating speed below 100km/h, not for high-speed transit equipment.

The whole set consists of double side spring buffer pads + adjustable screw tension chain. Buffers bear vehicle collision compression force, screw chain undertakes traction tension; workers manually tighten the screw link to connect carriages. Simple structure, low production & maintenance cost, widely recognized by European, Southeast Asian, African mining & chemical industrial clients. Compatible with SAINEER non-powered trailing bogies and idle load-bearing wheelsets for all kinds of unpowered rail wagons and small tonnage shunting locomotives.

Core Advantages

1. Split double-side buffer design, independent spring buffer pads, strong compression shock absorption capacity, adapt frequent bumping of small factory curves.

2. Adjustable threaded screw chain, eliminate vehicle clearance during marshalling, stable running without large longitudinal slack.

3. Simple overall structure, few vulnerable parts, spare parts low-cost & easy replacement, no complex hydraulic components, suitable for remote mine sites with limited maintenance conditions.

4. Diversified environment customized versions: explosion-proof sealed for gas mine, acid-alkali anti-corrosion for chemical park, high temperature resistant for cement kiln cars.

5. Full narrow gauge adaptation (600/762/900mm), also available for standard gauge 1435mm light transport wagons; flexible mounting height customization.

6. Low weight & small occupation space, fit small-tonnage industrial vehicles under 40t, widely used in European factory internal rail transport.