Polygon Shank Cone Drawbars and Grippers (PSC)

THE HIGH-PRECISION INTERFACE

Polygon shank cone drawbars and grippers from OTT-JAKOB are engineered for high-torque, high-precision applications in shops that demand reliable tool retention under heavy loads. The polygonal interface ensures exact centering and maximum torque transmission, reducing runout and improving part accuracy. With a robust, maintenance-free design, these drawbars deliver consistent clamping force cycle after cycle, even in the most demanding machining environments.

Key Benefits

• High Clamping Force with Compact Design | The force intensifying mechanism delivers exceptional clamping force in a space-saving package—ideal for high-speed, multi-tasking machines.
• Excellent Tool Change Repeatability | The polygonal interface ensures accurate centering and repeatable tool positioning, maintaining precision after every tool change.
• Modular Integration | Designed on OTT-JAKOB’s modular system, the PSC unit seamlessly integrates with spindles already using HSK or other interfaces—simplifying upgrades and replacements.
• Simplified Spindle Assembly | The complete mounting group, including a clamping unit and spindle sleeve with connections for cleaning air and media supply, eliminates the need to machine the PSC contour in the spindle itself.
• Long Service Life | DLC-coated gripper segments resist wear, extending the life of the clamping unit even in demanding production environments.
• Central Coolant Compatibility | Supports a central coolant supply system, ensuring reliable cooling and efficient chip evacuation for modern machining.