CNC Router Spindles
Heavy-duty 5.5 kW water-cooled high-speed electrospindle operating at 24,000 RPM. Engineered with precision matched ceramic P4 angular contact bearings, ER25/ER32 collet chuck, and mirror-polished stainless body.
- check_circle High continuous power: 5.5 kW output delivers high torque across both roughing and finishing passes.
- check_circle 24,000 RPM top speed: 400 Hz 3-phase AC operation provides step-less speed regulation.
- check_circle Matched P4 ceramic bearings: 4 angular contact bearings ensure extreme axial and radial rigidity.
- check_circle Ultra-low runout (<0.003 mm): Protects expensive solid carbide cutters from premature chipping.
- check_circle Full stainless steel body: Polished corrosion-proof housing with dual brass coolant ports.
- check_circle ER25 / ER32 industrial collet: Clamps tool shanks up to 20mm for deep mortising and surfacing.
- check_circle Low acoustic noise: Whisper-quiet water-cooled operation compared to howling air blowers.
Target Applications & Use Cases
Industrial Applications FitHeavy mortise-and-tenon milling, deep pocketing, and solid timber profiling.
High-load 3D bas-relief stone carving with continuous diamond tool water wash.
Chip-free, mirror-edge trimming on thick acrylic sheets and polycarbonate.
Precise milling of brass signs, aluminum tooling plates, and copper busbars.
Engineering & Production Benefits
Key Operational AdvantagesLiquid thermal jacket keeps stator cool for non-stop industrial shifts.
Maintains exact Z-axis milling depth during 10-hour 3D relief carvings.
Ceramic balls reduce frictional heat and resist micro-arcing damage.
Near-zero rotational vibration yields glass-smooth machined surfaces.
Spare Part Overview & Technical Description
Industrial 5.5 kW High-Speed Water-Cooled Spindle
This genuine HQD 5.5 kW water-cooled electric spindle represents the industrial workhorse for demanding CNC machining centers, delivering consistent high-torque cutting performance across wood, dense MDF, stone, acrylic, and non-ferrous alloys. Built with a heavy cylindrical stainless steel housing (100mm outer diameter), the spindle incorporates an optimized internal water circulation jacket that efficiently draws heat away from the motor windings and bearing assemblies during round-the-clock production shifts.
Internally, the spindle is supported by 4 precision P4-grade angular contact ceramic bearings configured in a rigid back-to-back preloaded arrangement. This architecture guarantees microscopic spindle nose runout (<0.003 mm), completely suppressing tool deflection during heavy profile roughing and high-feed 3D surface finishing. The precision-balanced rotor minimizes harmonic vibration across its entire 6,000 to 24,000 RPM operational envelope, dramatically extending cutter life and ensuring glassy edge finishes.
Technical & Cooling Best Practices:
- Coolant Circulation: Requires continuous flow of clean water or water/glycol mix via industrial chiller (CW-5000 or submersible pump).
- VFD Tuning: Must be operated through a matched 5.5kW or 7.5kW variable frequency inverter configured for 400Hz base frequency.
- Collet Maintenance: Keep ER25/ER32 collet bore clean and free of resin buildup; torque collet nut to specified Newton-meter rating.
- Thermal Protection: Embedded PTC thermistors safeguard motor stator against unintended overheating.
Full Specifications Sheet
| Specification | Parameter / Value |
|---|---|
| Minimum Order Quantity | 1 Piece |
| Cooler Type | Water Cooled |
| Diameter | 80 mm |
| Brand | Hqd, HQD |
| Automation Grade | Semi Automatic |
| Usage/Application | CNC Router |
| Spindle Power | 5.5 kW |
| Material | Wood |
| Maximum Spindle Speed | 24000 RPM |
| Surface Treatment | Polished |
| Country of Origin | Made in India |
Customer Reviews & Operational Ratings
Genuine evaluations from manufacturing plants, fabrication units, and machine operators across India.
Based on 2 verified client reviews.
“Ordered genuine replacement spindle and servo drives. Ready OEM stock dispatched the very same day. Exact fitment with our existing CNC controller without any rewiring hassle.”
“Genuine OEM standard spare part. Perfect replacement with zero downtime.”