HSD AT 100 Spindle Repair

HSD AT 100 Spindle Repair & High-Cycle ATC Rebuild

Overview

The AT 100 increases torque capacity and structural rigidity over the AT 90, making it common in mid-to-heavy production CNC routers.

Official Technical Specifications HSD_Cat_Composite_mar24_Web_ENG…

  • Body Diameter: 100 mm
  • Max Speed: 24,000 rpm
  • Taper: ISO30 / HSK63 variants
  • Cooling: Fan or liquid

Common Failure Patterns

  • Clamp fatigue from high tool change count
  • Bearing wear under sustained load
  • Taper fretting
  • Air system contamination

Rebuild Focus

AT 100 rebuild must emphasize:

  • Clamp force verification
  • Drawbar alignment
  • Bearing preload accuracy
  • Taper condition correction