Doosan released a wedge lock coupler for use with its 6- to 53-metric-ton crawler excavators. The new attachment expands the Doosan coupler line, which currently includes a hydraulic quick coupler.
The new wedge lock coupler manual mounting system is approved for use with 13 Doosan 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.
According to a press release, the wedge lock coupler allows operators to change their excavator attachments without the need for additional hydraulics. The wedge lock coupler does not, however, decrease a machine’s breakout force, the company says. The new coupler has a limited increase in tip radius over pin-on mounting, Doosan adds.
In addition, the coupler is designed to allow for the use of multiple attachments, such as heavy-duty digging buckets and trenching buckets. It’s also capable of efficiently releasing high-capacity bucket models, Doosan says.
The new coupler will also pair with Doosan’s excavator clamp attachments.