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Hotman GP32

Grinding · Guangdong Hotman Machine Tool Co., Ltd.

Catalog figures — see source review
Travel / bar260 × — × — mm
Table / load
Spindle
Taper / ATC— · —
Rapids / CNC— · —
Lead / MOQOn RFQ · Confirm with supplier
Hotman GP32
Lead time
On RFQ
MOQ
Confirm with supplier
Grade
Catalog listing

The Hotman GP32 is a CNC follower grinder for eccentric shafts, crankshafts and other long components with non-circular features. The manufacturer also describes cylindrical grinding capability. A 320 mm maximum grinding diameter and 600 mm center distance define two basic limits, but the full profile and fixture clearance still need to be checked.

The wheelhead uses a linear-motor feed, while a direct-drive workhead provides controlled part rotation. The catalog describes a hydrostatic/dynamic-pressure grinding-wheel spindle and linear-scale feedback. Together, these components form the motion and support arrangement for following an eccentric or shaped surface; they do not by themselves establish a finished-part tolerance.

The table distinguishes a 90 kg load between centers from a 20 kg workhead load. The two listed wheel sizes are alternatives, and the 45 m/s figure is wheel peripheral speed, not spindle rpm. Select the wheel, dressing method and coolant package against workpiece material, stock removal and required surface finish.

Can the maximum diameter and center distance be used as a complete part envelope?

No. Submit the full eccentric profile, shoulder positions and fixture arrangement so that wheel approach and all clearances can be checked.

Specifications and review

Maximum grinding diameter
320 mm
Maximum swing
320 mm
Distance between centers
600 mm
Workpiece load between centers
90 kg
Workhead load
20 kg
Maximum wheel peripheral speed
45 m/s
X-axis stroke
260 mm
Workhead speed
Up to 600 rpm
Workhead / tailstock taper
MT4 / MT4
Table travel
600 mm
Table swivel
+6° / −9°
Tailstock quill travel
40 mm
Grinding wheel sizes
450 × 127 × 50 mm or 405 × 203 × 50 mm
Machine dimensions
2600 × 1900 × 1690 mm
Gross weight
5500 kg

Source review: 2026-09-21. Catalog figures may describe standard equipment or optional packages; confirm the exact configuration through the RFQ form.

GP32 manufacturer photographs showing machine configurations and working enclosure.

Directory record: Guangdong Hotman Machine Tool Co., Ltd.. A directory association does not establish the legal entity that manufactures or sells a particular configuration.