Precision ER32 Collet Holder for Macro-Style Automation Systems

The PA-21012V-TR is a high-precision ER32 collet holder designed for Macro-style chucks and automation systems. It is specifically engineered for clamping copper or graphite electrodes in EDM applications, as well as for holding cutting tools in machining operations where quick changeover and repeatability are critical.

Manufactured from hardened stainless steel (HRC 48–52) , this collet holder offers exceptional wear resistance, corrosion protection, and long-term dimensional stability. The precision-ground 52×52mm reference base ensures seamless integration with Macro-style clamping systems, allowing for rapid loading and unloading in automated cells.

A key feature of this holder is the integrated flushing duct, which allows EDM dielectric fluid to flow directly to the electrode tip, improving machining efficiency and surface finish. The holder achieves a concentricity tolerance of ±0.005mm after assembly with a copper electrode, ensuring consistent spark gap and reducing the risk of inaccurate electrode positioning.

Key Benefits:

• High Precision: ±0.005mm concentricity ensures accurate electrode positioning for demanding EDM applications.

• ER32 Versatility: Accepts a wide range of collet sizes (2–20mm), accommodating various electrode diameters.

• Flushing Capability: Integrated flushing duct improves dielectric flow and machining performance.

• Durable Construction: Hardened stainless steel withstands repeated clamping cycles and shop floor conditions.

• Complete Package: Includes Φ12 collet for immediate use; additional collet sizes available separately.

• Cost-Effective: Offers reliable performance at a competitive price point.

Typical Applications:

• Copper and graphite electrode clamping for sinker EDM

• Tool holding for milling, drilling, and engraving operations

• Automated electrode and tool change systems

• Precision machining cells requiring quick changeover

Compatibility: The PA-21012V-TR is designed for use with Macro-style chucks and clamping systems utilizing the industry-standard 52×52mm interface. It is suitable for both manual and automatic clamping units.

Note: For optimal concentricity, ensure that the collet, holder, and electrode are clean before assembly. Tighten the collet nut to the recommended torque. Additional ER32 collets in various sizes are available upon request.

Trademark Disclaimer:
*Macro® and System 3R® are registered trademarks of their respective owners. Plus Auto Solution is an independent manufacturer. Our products are designed to be interchangeable with systems utilizing Macro-style interfaces. We are not affiliated with or endorsed by System 3R.*