Supertec GI-150CNC
Image: supertec-grinder.com, Supertec
Key Specifications
id grinding range
max grinding depth
max swing to dresser
swing of chuck cover
spindle center height
chuck size
How much does the Supertec GI-150CNC cost?
Price estimate
We do not have a price for the Supertec GI-150CNC 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 Supertec GI-150CNC is a dedicated two-axis internal grinder. The CNC controls the table feed and the wheel infeed and nothing else, which keeps the machine simple next to the maker's three-axis complex grinders. It bores from Ø6~Ø150 mm (Ø0.25~Ø6 in) to a maximum grinding depth of 125 mm (5 in).
Parts are held in a 6 in hydraulic chuck, with an 8 in chuck as the option, and may weigh up to 50 kg (110 lb). The swing inside the chuck cover is Ø260 mm (10.2 in), and Ø220 mm (8.6 in) clears the dresser. The workhead swivel is listed as C.W.15°~C.C.W.5° for tapered bores, and the spindle turns at up to Max. 1,000 rpm.
Fine feed is the point of the design. Supertec describes a closed-loop X axis with a linear scale, and linear guides that allow a fine feed of 0.1μm on both the table and the infeed slide. X travels 200 mm (7.9 in) and Z 560 mm (22 in), each on a 1.8 kW servo motor at 8 m/min rapid.
The wheel spindle is belt driven by a 2.2 kW (2P) motor, with spindle speeds available across 8,000~30,000 rpm. A full enclosure splash guard with a manual door is standard in the table. The machine weighs 3,500 kg (7,716 lb) net, ships at 2,980 × 2,280 × 2,250 mm (117 × 90 × 88 in) and carries a 120 L coolant tank.
Full Specifications
| Parameter | Value |
|---|---|
| ID Grinding Range | Ø6~Ø150 mm (Ø0.25~Ø6 in) |
| Max Grinding Depth | 125 mm (5 in) |
| Max Swing to Dresser | Ø220 mm (8.6 in) |
| Swing of Chuck Cover | Ø260 mm (10.2 in) |
| Spindle Center Height | 1,050 mm (41.3 in) |
| Chuck Size | 6 in Hydraulic Chuck (Opt. 8 in) |
| Max Workpiece Load | 50 kg (110 lb) |
| Workhead Speed | Max. 1,000 rpm |
| Workhead Swivel | C.W.15°~C.C.W.5° |
| Workhead Motor | 1.5 kW (2.0 hp) |
| X Axis Feedback | Closed_Loop System |
| X Axis Travel | 200 mm (7.9 in) |
| X Axis Rapid Traverse | 8 m/min |
| X Axis Min Increment | Ø0.001 mm (0.0001 in) |
| X Axis Servo Motor | 1.8 kW (2.4 hp) |
| Wheel Spindle Motor | 2.2 kW (2P) |
| Wheel Spindle Speed | 8,000~30,000 rpm |
| Z Axis Travel | 560 mm (22 in) |
| Z Axis Drive | Servo Motor 1.8kW |
| Z Axis Rapid Traverse | 8 m/min |
| Z Axis Min Increment | 0.001 mm (0.0001 in) |
| Coolant Tank | 120 L |
| Coolant Pump | 80 L/min 0.7kg/cm2 |
| Lubrication Pump | 5.2 L/min 10kg/cm2 |
| Hydraulic Pump | 20 L/min 55kg/cm2 |
| Machine Cover | Full Enclosure Splash Guard / Manual Door |
| Machine Weight | 3,500 kg (7,716 lb) |
| Gross Weight | 4,000 kg (8,818 lb) |
| Packing Dimensions | 2,980 × 2,280 × 2,250 mm (117 × 90 × 88 in) |
Specifications sourced from supertec-grinder.com — verified 2026-10-05
Strengths & Limitations
Strengths
- Closed-loop X axis with linear scale feedback, per Supertec's description
- Fine feed of 0.1μm on both guide faces through linear guides
- 560 mm (22 in) of Z travel for a 125 mm (5 in) grinding depth, leaving room to retract and dress
- Workhead swivel of C.W.15°~C.C.W.5° for taper bores
- Full enclosure splash guard listed in the specification table
Limitations
- Internal grinding only; there is no OD wheelhead on this model
- Bore range ends at Ø150 mm and depth at 125 mm (5 in)
- Maximum loading is 50 kg (110 lb)
- The splash guard door is manual
Best For
Frequently Asked Questions
01
The ID grinding range is Ø6~Ø150 mm (Ø0.25~Ø6 in) and the maximum grinding depth is 125 mm (5 in). Wheel spindles are offered across 8,000~30,000 rpm, so the spindle is matched to the bore diameter being ground.
02
In a 6 in hydraulic chuck as standard, or an 8 in chuck as an option. Maximum loading is 50 kg (110 lb), the swing of the chuck cover is Ø260 mm (10.2 in) and the workhead is driven by a 1.5 kW (2.0 hp) servo motor at up to Max. 1,000 rpm.
03
Two. X is the infeed, with 200 mm (7.9 in) of travel and a minimum increment of Ø0.001 mm (0.0001 in). Z is the table, with 560 mm (22 in) of travel and a 0.001 mm (0.0001 in) increment. Both rapid at 8 m/min.
04
The GM-35CNC is a three-axis complex grinder with an OD spindle as well as ID spindles, grinding bores up to Ø200 mm and outside diameters up to Ø350 mm (14 in) at 4,700 kg (10,361 lb). The GI-150CNC grinds bores only, on two axes, and weighs 3,500 kg (7,716 lb).
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