HOYO HOYO

Spindle Products

26 models across 7 series — 300 to 150,000 RPM, 100 W to 34 kW. Not sure which fits? Start with the selection guide.

Internal Grinding & Milling Spindles
9,000 – 150,000 RPM

Internal Grinding & Milling Spindles

Engineered for high-frequency operations, our internal grinding spindles run from 9,000 to 150,000 RPM. Precision angular contact bearings deliver maximum thermal stability and minimal vibration, from PCB micro drilling through to engine block roughing.

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External Cylindrical Grinding Spindles
Maximum rigidity, high torque

External Cylindrical Grinding Spindles

Built for maximum rigidity and high torque. Precision bearing sets in the 7011–7020 series hold micron-level accuracy under heavy loads, covering workpieces from sub-50 mm shafts through to multi-tonne rolls.

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Workhead Spindles
Integrated hydraulic clamping

Workhead Spindles

Optimised for high-precision workpiece rotation. Integrated hydraulic clamping and exceptional low-speed torque, for cylindrical and internal grinding applications from 10 mm tool shanks to 500 mm rolls.

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Wheel Dressing Spindles
100 W – 2 kW, 4,000 – 12,000 RPM

Wheel Dressing Spindles

A complete dressing range covering wheels from under 20 mm to 300 mm, including dedicated high-torque units for CBN and diamond wheels. Available with or without a mounting base.

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Hydrostatic Spindles
Sub-micron, roundness below 0.3 μm

Hydrostatic Spindles

Our built-in motor hydrostatic spindles represent the peak of rotational accuracy. Integrating the motor directly into the hydrostatic bearing housing eliminates external drive vibration. The oil film carries the shaft with no mechanical contact — no wear, near-zero vibration, and sub-micron precision for the most demanding grinding and boring work.

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External Motor Driven Spindles
Thermal isolation for continuous duty

External Motor Driven Spindles

With the motor mounted outside and coupled by belt or coupling, motor heat never reaches the spindle. That thermal isolation keeps accuracy stable through long continuous grinding runs, and makes the motor serviceable without stripping the spindle — the practical choice for 24-hour operation and retrofits.

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HSK63 Automatic Tool Change Spindles
3-second tool change, lights-out ready

HSK63 Automatic Tool Change Spindles

An HSK-63 interface with liquid cooling and automatic tool change in roughly three seconds. Where a manual-change spindle means stopping the machine, loosening, swapping and re-clamping, this changes tools unattended — built for multi-process batch production and lights-out manufacturing on machining centres.

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Supporting Equipment

Panoramic Monitoring Hydraulic Power Unit

Panoramic Monitoring Hydraulic Power Unit

Supplies and conditions the oil film for hydrostatic spindles, with full monitoring of pressure, flow and temperature across every circuit.

Spindle Chiller

Spindle Chiller

Dedicated refrigeration for motorised spindles. Holding coolant temperature stable is what keeps thermal growth — and therefore accuracy — under control through a full production shift.

Tell Us Your Application

Send us the workpiece, the material and the tolerance. Our engineers will come back with a specific model, not a catalogue.

  • Engineering-led support
  • Drawings welcome
  • Reply within one business day

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