The BESSEY GH30 is a professional-grade, high-performance all-steel lever clamp engineered for rapid, high-pressure clamping. It is heavily utilized in metalworking, welding, woodworking, and high-volume production lines because it operates significantly faster than traditional threaded screw clamps.
Clamping Capacity (Opening): 300 mm (approx. 12 inches)
Throat Depth: 140 mm (approx. 5.5 inches)
Maximum Clamping Force: Up to 8,500 N (approx. 1,910 lbs of force)
Rail Profile Dimensions: 28 mm x 11 mm
Weight: 2.27 kg (approx. 5 lbs)
Instead of turning a spindle thread, the GH30 uses a secure ratchet-and-lever mechanism. This allows the clamp to engage and release up to 5 times faster than standard screw clamps, maximizing efficiency during high-repetition assembly tasks.
The multi-stage ratchet mechanism acts as a mechanical lock that is entirely unaffected by heavy vibrations. This makes it an ideal companion for aggressive fabrication work involving hammer blows, impact drivers, or heavy grinding.
Monoblock Design: The fixed bracket and the pressure plate are drop-forged and tempered from a single piece of steel, meaning it resists bending and twisting even under max tension.
Serrated Sliding Arm: The movable arm is built from tempered, drop-forged steel and features precision serrations to securely grip the rail profile without slipping.
The primary clamping lever is powder-coated for an easy grip, while the quick-release lever features a non-slip coating. This ensures that unlocking the immense 8,500 N of force is controlled, safe, and snap-free.
Welding & Fabrication: Steel jaws hold workpieces rigidly through thermal changes and heavy grinding.
Production & Assembly Lines: Speed-clamping multiple jigs in a rapid workflow.
Heavy Carpentry: Joining dense hardwoods or laminates requiring extreme tensile strength.