S45/S50 Quick Coupler

Symmetrical quick coupler for excavators in the 5-11 ton range.

Steelwrist quick couplers are designed around three leading principles being Robust, Compact and Safe. The Quick Coupler is a wedge type coupler following the Symmetrical Standard and is fully compliant with the coming ISO13031 (Earth-moving machinery – Quick Couplers – Safety).

Robust

Thanks to the combination of casted components and truss structure design we have achieved a relatively low weight yet a very robust design. With the casted front hubs, which allows for oversized pin contact surfaces, we distribute the digging forces into the coupler structure like no other brand on the market.

The Steelwrist coupler is also the only coupler on the market that uses the shafts as part of the truss structure in order to take up side forces incurred when working with a tiltrotator.

Compact

With only 120mm of building height on the S45 and S50 quick coupler the difference between a direct fit tiltrotator and a sandwich construction tiltrotator is minimal.

Safe

The Symmetrical Coupler Standard is by itself a very safe system compared to some other of the European type couplers. By using a Symmetrical Coupler you will fulfill basic requirements like:

• It is only possible to use bucket following the same standard. (With an S45 or S50 coupler you can only pick up a work tool which has a S45 or S50 adaptor respectively. It is not possible to pick up a bucket that is not designed to fit your coupler)
• Wedge type locking whereby the angle of the engagement wedge in cooperation with the friction in itself counteracts the tendency to disengage.
• No digging forces into the locking ram even under reverse grading (grade away from driver)

On top of these features the Steelwrist Quick Couplers have continuos locking force, check valve and internal springs for safety back up reasons.

Technical data