PMK High-Frequency Grinding Spindles are engineered for precision internal and external grinding applications, offering stable, high-speed performance with excellent surface finish and reliability.

Each spindle is dynamically balanced and precision-assembled with P4-grade bearings, maintaining tight tolerances even at rotational speeds up to 12,000 rpm. Compact construction, smooth torque characteristics, and thermally stable design make these spindles ideal for high-accuracy toolrooms, cylindrical grinders, and production environments.

Key benefits

• Performance: speed range approximately 6,000 – 12,000 rpm with power ratings from 2.4 to 11 kW for diverse grinding operations.
• Precision: P4 angular-contact bearings (e.g., B7010C / B7015C series) provide ultra-low runout and improved dimensional accuracy.
• Versatility: multiple taper configurations (A24 – A26) and boundary dimensions (Ø150 – Ø240 mm) suit varied machine interfaces.
• Reliability: dual-voltage (220 / 380 V) and multi-frequency operation ensure consistent output in different plant setups.
• Serviceability: constant-power drive characteristics simplify integration with both new and retrofit grinding systems.

Applications

• Internal and external cylindrical grinding.
• Surface and tool grinding operations.
• Precision machining and component finishing.
• Automotive, aerospace, and die-mould manufacturing.
• Toolroom or retrofit projects requiring high-frequency spindle upgrades.