The Center-Lock Pin-Grabber Coupler for Caterpillar hydraulic excavator models 311 to 385 uses an over-center locking mechanism and two hydraulic locking features to assure positive work tool ...

Doosan has expanded the versatility of its excavators with the addition of eight main pin thumbs and seven pro-link wedge lock thumbs that are compatible with wedge lock attachments. The thumb ...

Wedgelock quick coupler’s patented back-up locking system, I-Lock, engages the front attachment pin without requiring a machine operator to activate the main locking mechanism. The system has a ...