Kurt Workholding offers its CarvLock line of workholding towers for high-volume precision manufacturing. The towers are available with eight or 12 clamping stations in both manual and hydraulic models, designed with changeable jaws to ease setup and changeover. Suitable for mid-sized and larger HMCs, the towers are configurable to manufacturers' needs.
Each tower station has either a 3" or 4" jaw opening and provides repeatable clamping to 0.0002" with clamping force ranging from 5,870 to 7,460 lbs, depending on the model. Jaws are indexable to 180 degrees. According to Kurt, the clamps achieve workpiece immobility while damping cutter-induced vibration. A self-adjusting holding block for the front or back jaw is used for clamping the same or dissimilarly sized parts. To speed manual operation, the towers offer an adjustable preload feature that reduces handle turns for opening and closing clamping stations. The hydraulic models eliminate manual clamping altogether, further speeding the clamping process.
Made of ductile iron for maximum strength, rigidity and long-term accuracy, the workholding towers' elevated column design eases chip and coolant clearing. Additional features include jaw options for specific applications, including hard jaws, machinable aluminum and ductile iron jaws, and aluminum fixture plates.