Expanded Diameter Chuck

BIG Kaiser (Elk Grove Village, IL) offers a new, large Unilock Model 176 quickchange clamping chuck that features an expanded diameter, which provides addi-tional clamping sur-face, making it very adaptable to user ap-plications in custom fixture designs and excellent for high torque, rotary table and heavy-duty applications.

BIG Kaiser (Elk Grove Village, IL) offers a new, large Unilock Model 176 quickchange clamping chuck that features an expanded diameter, which provides addi-tional clamping sur-face, making it very adaptable to user ap-plications in custom fixture designs and excellent for high torque, rotary table and heavy-duty applications. Its large Z reference plane (176 mm or 6.93”) accepts standard SB 40-mm clamping knobs and easily integrates into base plates and custom fixtures. It can be used on tombstones, fixture plates and custom workholding applications. The unique notch allows a choice of a 25-mm pin or key to orient the fixture. The system standard Unilock 40-mm clamping knob can be attached directly to workpieces or fixtures with up to a 16-mm thread. The clamping knob provides affordable accuracy and rigidity. The spring-based mechanical clamping system supports an air boost system to increase clamping force by up to 30 percent over spring retention alone.