Wedge Lock Coupler


June 2, 2014 - Equipment

<p><em>Photo courtesy of Doosan</em></p>

Doosan’s wedge lock coupler can be used with the company’s 6- to 53-metric-ton crawler excavators. The wedge lock coupler allows operators to change their excavator attachments without the need for additional hydraulics but does not decrease a machine’s breakout force. The new coupler has a limited increase in tip radius over pin-on mounting.

The wedge lock coupler is designed to allow for the use of multiple attachments, including buckets and clamp attachments. In an effort to increase jobsite safety, the wedge lock coupler’s swing ear design and the use of a bolt retainer safety plate helps prevent attachments from falling.

The wedge lock coupler manual mounting system is approved for use with 13 crawler-excavator models including the DX63-3, DX85R-3, DX140LC-3, DX140LCR-3, DX180LC-3, DX225LC-3, DX235LCR, DX255LC-3, DX300LC-3, DX350LC-3, DX420LC-3, DX490LC-3 and DX530LC-3.

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