Heavy Duty Progressive Link Thumb for Mid-Size Excavator with Pin Grabber Coupler

Serviceable Bushings

The pivot pin bore features greaseable and replaceable hardened bushings, ensuring smooth operation, enhanced durability, and easy serviceability.

Induction Hardened Pins

Thumb includes OEM quality high strength induction hardened pins and locking hardware.

T1 Tines

Our thumb tine plates are crafted from high-strength low-alloy (HSLA) T1 grade steel, known for its exceptional strength, toughness and wear resistance.  This makes it an ideal choice for heavy-duty applications such as excavator thumbs, where durability is essential.

Serrated Tines

We add a serrated profile to thumb tines to improve grip on irregular or slippery materials like rocks, logs, and debris.  This design enhances the excavator's ability to securely and efficiently handle diverse materials, ideal for applications such as demolition, forestry, and material handling.

Spherical Bushings

Our thumb cylinders are equipped with sphyrical bushings to allow slight angular movement to accommodate misalignment and reduce stress on the cylinder.  This flexibility minimizes wear on seals and other components, enhancing durabilty and extending the cylinder's lifespan.

Progressive Link

A mechanical design feature that creates more consistent grip force and improved range of motion.  Helps the thumb stay in sync with the bucket's arc and act more like a true hand than a rigid clamp.