Fermat BHM
Key Specifications
swing diameter
distance between centers
max workpiece weight
wheelhead swivel
max number of tools
wheel peripheral speed
How much does the Fermat BHM cost?
Price estimate
We do not have a price for the Fermat BHM that we can stand behind, so we show no number. Configuration, options and installation move the final price a long way: a quote is the reliable figure.
Overview
The Fermat BHM is a mid-size CNC cylindrical grinder for workpieces up to 1,500 kg (3,307 lb). It swings 500 mm, with 600 mm printed in brackets, and is built with 1,000 / 1,500 / 2,000 / 3,000 mm (39.4 / 59.1 / 78.7 / 118.1 in) between centers.
One figure in its table stands out. The wheelhead turns through +15° / -180°, a far wider range than the +30° / -30° of the larger BHC, although it is still set manually. A range that wide lets the operator turn the head to a second tool, which is how a 1+1 tool count can be used without an automatic B axis. If that change-over has to happen inside the program, the BHMR is the model to look at.
The grinding wheel is Ø 500 x 80 x Ø 203 mm on an 11 kW (14.8 hp) motor, and its peripheral speed is 10-50 m/s as standard. That full range is only an option on Fermat's lighter BUB E, which has the same wheel and motor.
Fermat states a working accuracy of IT 4, with infeed and table travel on servomotors and ball screws. The machine grinds external cylinders, tapers, faces and radii between centers, and bores with a tilting internal spindle. Controls: SINUMERIK 828D sl, 840D sl or ONE, or FANUC.
Full Specifications
| Parameter | Value |
|---|---|
| Swing Diameter | 500 (600) mm (19.7 (23.6) in) |
| Distance Between Centers | 1,000 / 1,500 / 2,000 / 3,000 mm (39.4 / 59.1 / 78.7 / 118.1 in) |
| Max Workpiece Weight | 1,500 kg (3,307 lb) |
| Wheelhead Swivel | +15° / -180° (manually) |
| Max Number of Tools | 1+1 |
| Wheel Peripheral Speed | 10-50 m/s |
| Wheel Size | Ø 500 x 80 x Ø 203 mm (Ø 19.7 x 3.1 x Ø 8.0 in) |
| Wheelhead Motor Power | 11 kW (14.8 hp) |
Specifications sourced from fermatmachinetool.com — verified 2026-10-05
Strengths & Limitations
Strengths
- Wheelhead swivel of +15° / -180°, the widest manual range in Fermat's grinder line
- 10-50 m/s wheel speed as standard
- Up to 3,000 mm (118.1 in) between centers
- 1,500 kg (3,307 lb) workpiece weight
- IT 4 working accuracy stated by Fermat
Limitations
- Wheelhead is turned manually; automatic indexing needs the BHMR
- Swing is 500 mm, with 600 mm only in brackets
- 11 kW (14.8 hp) wheel motor, against 18.5 kW (24.8 hp) on the BUC E
- Center distance stops at 3,000 mm (118.1 in)
Best For
Frequently Asked Questions
01
The BHMR has program-controlled rotation of the grinding headstock, +45° / -225°, and 3 tools. The BHM has a manually turned wheelhead with +15° / -180° of swivel and a 1+1 tool count. Capacity, wheel size and the 11 kW (14.8 hp) motor are the same.
02
Up to 1,500 kg (3,307 lb). Swing diameter is 500 mm, with 600 mm shown in brackets, and the distance between centers is 1,000 / 1,500 / 2,000 / 3,000 mm (39.4 / 59.1 / 78.7 / 118.1 in).
03
A wheel of Ø 500 x 80 x Ø 203 mm driven by an 11 kW (14.8 hp) wheelhead motor. Peripheral speed is 10-50 m/s. Fermat also lists a rotary dresser and electric spindles among the equipment the machine can have.
04
SINUMERIK 828D sl, SINUMERIK 840D sl, SINUMERIK ONE or FANUC. More complex surfaces are ground with linear and circular interpolation, and a special version adds a C axis for non-circular shapes.
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