Supertec G25P-50CNC
Key Specifications
swing over table
distance between centers
max grinding diameter
max load between centers
wheel size
wheel speed
How much does the Supertec G25P-50CNC cost?
Price estimate
We do not have a price for the Supertec G25P-50CNC 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
Largest of Supertec's compact CNC plunge grinders, the G25P-50CNC takes work up to Ø250 mm (Ø10 in) in diameter and 500 mm (20 in) between centers. The grinding wheel grows with it, to Ø455 × 50 × Ø127 mm (Ø18 × 2 × Ø5 in), and wheel speed drops to 1,650 rpm to suit the larger diameter.
What does not grow is the weight the centers will carry. The limit stays at 80 kg (176 lb), the same figure Supertec gives for the G18P-40CNC, and both centers remain MT 3. So this is a machine for larger-diameter but still light parts: sleeves, rolls and flanged shafts, not heavy solid bars.
The wheel spindle motor is 5 kW (6.7 hp). Infeed travel on X is 160 mm (6.3 in), with rapids of 6 m/min on X and 8 m/min on Z. Net weight is 3,100 kg (6,820 lb), and the packed machine measures 2,970 × 2,250 × 2,250 mm (117 × 89 × 89 in) at 3,500 kg (7,700 lb) gross, which is useful to know when planning the rigging.
Supertec's description of the series covers a ribbed Meehanite base, an automatic lubrication system for slideways, ballscrews and spindle, and hydraulic, coolant and lubrication units kept apart from the machine to hold vibration and heat away from it. A linear feedback system of 0.001mm is named for the saddle.
Full Specifications
| Parameter | Value |
|---|---|
| Swing Over Table | Ø250 mm (Ø10 in) |
| Distance Between Centers | 500 mm (20 in) |
| Max Grinding Diameter | Ø250 mm (Ø10 in) |
| Max Load Between Centers | 80 kg (176 lb) |
| Wheel Size | Ø455 × 50 × Ø127 mm (Ø18 × 2 × Ø5 in) |
| Wheel Speed | 1,650 rpm |
| Wheel Peripheral Speed | 2,000~3,600 m/min |
| X Axis Rapid Traverse | 6 m/min |
| X Axis Infeed Travel | 160 mm (6.3 in) |
| X Axis Min Increment | Ø0.001 mm (Ø0.0001 in) |
| Wheel Spindle Type | Bearing Type |
| Workhead Speed | Max. 500 rpm |
| Workhead Center Taper | MT 3 |
| Workhead Spindle Type | Fixed & Rottary |
| Workhead Spindle Bore | Ø20 mm (0.79 in) |
| Tailstock Quill Travel | 25 mm (1 in) |
| Tailstock Center Taper | MT 3 |
| Z Axis Rapid Traverse | 8 m/min |
| Z Axis Min Increment | 0.001 mm (0.0001 in) |
| Table Swivel Ccw | 10° |
| Wheel Spindle Motor | 5 kW (6.7 hp) |
| Workhead Motor | 0.375 kW (0.5 hp) |
| Lubrication Pump | 5.2 L/min 10kg/cm2 |
| Hydraulic Pump | 20 L/min 55kg/cm2 |
| Coolant Pump | 80 L/min 0.7kg/cm2 |
| X Axis Servo Motor | 1.2 kW (1.6 hp) |
| Z Axis Servo Motor | 1.2 kW (1.6 hp) |
| Machine Weight | 3,100 kg (6,820 lb) |
| Gross Weight | 3,500 kg (7,700 lb) |
| Packing Dimensions | 2,970 × 2,250 × 2,250 mm (117 × 89 × 89 in) |
Specifications sourced from supertec-grinder.com — verified 2026-10-05
Strengths & Limitations
Strengths
- Ø250 mm (Ø10 in) swing and 500 mm (20 in) between centers, the largest envelope of the three small plunge models
- Ø455 × 50 × Ø127 mm (Ø18 × 2 × Ø5 in) wheel driven by a 5 kW (6.7 hp) motor
- Infeed travel of 160 mm (6.3 in) gives room for wheel wear and for a range of part diameters
- Hydraulic, coolant and lubrication systems are separated from the machine, as Supertec describes the series
Limitations
- Load between centers is still 80 kg (176 lb) despite the larger swing
- MT 3 centers and a 0.375 kW (0.5 hp) workhead motor are carried over from the smaller machines
- At 3,100 kg (6,820 lb) it is heavier than the 2,500 kg (5,511 lb) G18P-40CNC, so it needs more foundation and lifting capacity
- Crash control, gap control and the touch probe are optional equipment
Best For
Frequently Asked Questions
01
Up to Ø250 mm (Ø10 in) maximum grinding diameter, 500 mm (20 in) between centers and 80 kg (176 lb) held between centers. The workhead spindle has a Ø20 mm (0.79 in) bore and both centers are MT 3.
02
Net weight is 3,100 kg (6,820 lb) and gross weight 3,500 kg (7,700 lb). The packing dimension is 2,970 × 2,250 × 2,250 mm (117 × 89 × 89 in). The hydraulic, coolant and lubrication units stand apart from the machine, so allow floor space for them beside it.
03
The wheel turns at 1,650 rpm and Supertec lists a maximum peripheral speed range of 2,000~3,600 m/min. The wheel spindle motor is 5 kW (6.7 hp), the X and Z servo motors are 1.2 kW (1.6 hp) each, and the workhead motor is 0.375 kW (0.5 hp).
04
The table lists the workhead spindle type as fixed and rotary, and the description calls it a combination live and dead-type spindle for quick changeover from center to chuck operation. Workhead speed is variable up to Max. 500 rpm.
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