Air Pressure Plate – For HSD ES950 / ES951 Spindles (Includes Dead End Plug)

The HSD Air Pressure Plate is a precision-machined OEM component engineered for ES950 and ES951 spindle systems. It manages pneumatic flow and maintains stable pressure during CNC operation to protect spindle bearings and ensure consistent cooling. Constructed from anodized aluminum for long-term durability, this assembly includes a push-to-connect fitting and a factory-supplied dead end plug for sealing unused air ports. Ideal for spindle rebuilds, maintenance, or replacement of worn or damaged plates. This genuine HSD part restores proper airflow performance, extends spindle life, and ensures reliable pneumatic system operation in high-speed CNC environments.

• Specifications:
  • Compatible Spindle Models: HSD ES950, ES951
  • Part Number: H6390H0004
  • Connection Type: Push-to-Connect Air Fitting
  • Included Components: Air Plate Assembly and Dead End Plug
  • Material / Finish: Black Anodized Aluminum
  • Dimensions: Approx. 5.9″ x 5.5″ x 1.2″
  • Mounting Type: Bolt-On with Pre-Drilled Mounting Points
  • Function: Regulates air pressure and supports spindle cooling airflow
• Applications:
  • Pneumatic pressure control for HSD ES950 / ES951 spindles
  • Replacement component for spindle maintenance and rebuilds
  • Restores proper air regulation and bearing cooling in CNC systems
• Features & Benefits:
  • OEM replacement part ensures precise compatibility with HSD spindles
  • Precision-machined aluminum plate provides airtight sealing and stability
  • Includes dead end plug for secure airflow management
  • Enhances spindle cooling efficiency and long-term reliability