HSD Fan Unit for ES919 / ES929 Spindles – Replacement Cooling Fan Assembly

This OEM HSD replacement fan unit is designed for ES919 and ES929 spindle models to maintain proper airflow and cooling performance during demanding CNC machining operations. The assembly ensures stable spindle temperatures under continuous duty cycles and prevents overheating that can shorten bearing life or affect machining accuracy. Built to HSD’s exact specifications, this fan unit installs directly in place of the original and restores optimal air-cooling performance for long-term reliability.

• Specifications:
  ◦ Manufacturer: HSD
  ◦ Part Number: AH5661H0009
  ◦ Compatibility: ES919 and ES929 spindles
  ◦ Function: Spindle cooling fan assembly
  ◦ Cooling Type: Air cooling
  ◦ Housing Material: Molded high-temperature polymer
  ◦ Diameter: 100 mm (stamped on housing)
  ◦ Rating: IP20 (per housing mark)
• Applications:
  ◦ Replacement cooling fan for HSD ES919 spindles
  ◦ Replacement cooling fan for HSD ES929 spindles
  ◦ CNC routers and machining centers using HSD air-cooled spindle systems
  ◦ Preventive maintenance or repair of failing or noisy spindle fans
• Features & Benefits:
  ◦ OEM HSD part ensures perfect fit and compatibility
  ◦ Maintains proper airflow for thermal stability
  ◦ Helps prevent spindle overheating and premature bearing wear
  ◦ Durable, high-temperature fan housing
  ◦ Easy drop-in replacement