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Macro‑Style Manual Chuck Pre‑Mounted on a CNC Base Plate – Ready for Machine Tables

The PA-21035V-TR is a complete workholding solution that combines a high‑precision Macro‑style manual chuck with a dedicated CNC base plate. The base plate is machined to a 145×100mm footprint and pre‑assembled to the chuck, allowing you to mount the entire unit directly onto CNC machine tables, tombstones, or fixtures using standard T‑slot nuts or bolt holes. No additional adapter plates or custom fixtures are required.

The chuck itself is manufactured from high‑grade Japanese stainless steel, hardened to 57–60 HRC, and features precision‑ground reference surfaces that guarantee seamless compatibility with all Macro‑style pallets, centering plates, and electrode holders (both 54×54mm and 70×70mm formats). Its robust drawbar mechanism delivers a consistent 6000 N clamping force, ensuring secure holding for electrodes, workpieces, and pallets during heavy cutting or EDM operations.

The chuck provides fixed 4×90° indexing positions, enabling rapid orientation changes without losing reference. An integrated flushing connection is included, supporting coolant or EDM dielectric fluid flow directly through the system for improved chip evacuation and process efficiency.

The pre‑assembled design saves valuable setup time and eliminates the need for alignment or machining of custom mounting plates. The base plate is ground flat and square to ensure the chuck sits parallel to the machine axes, preserving overall accuracy.

Key Benefits:

• Ready‑to‑Install: CNC base plate pre‑attached – no additional adapter needed.
• Direct Machine Mounting: 145×100mm footprint fits most CNC mill and machining center tables.
• Full Macro Compatibility: Accepts 54×54mm and 70×70mm Macro‑style pallets and reference elements.
• High Clamping Force: 6000 N for stable workholding.
• Indexing Capability: 4×90° fixed positions for quick electrode/workpiece orientation.
• Flushing Ready: Integrated connection for coolant or dielectric fluid.
• Durable Construction: Hardened Japanese stainless steel (57–60 HRC) for long life.
• Precision Alignment: Base plate ground flat to maintain geometric accuracy.

Typical Applications:

• Installing Macro workholding onto new or existing CNC milling machines
• Retrofitting manual chucks on machining centers without custom adapters
• Electrode and workpiece clamping in mold making
• Quick changeover setups requiring repeatable positioning

Compatibility:
The PA-21035V-TR is designed for use with all Macro‑style pallets, centering plates, reference elements, and manual spigots. It conforms to the industry‑standard Macro interface. The CNC base plate is designed for general machine table mounting; please verify bolt hole positions with your machine's dimensions.

Note:
Before first use, clean the base plate and machine table surfaces. Tighten mounting bolts evenly to avoid distortion. For optimal performance, use a torque wrench on the drawbar to achieve 6 Nm. Flush the chuck interface regularly to maintain clamping accuracy.

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.