Machine Comparison
GROB G150 vs Grob G750
GROB vs Grob · 5-Axis Machining Centers
Summary
The GROB G150 and the Grob G750 are both 5-axis machining centers from the same maker, but they are different size classes and serve different jobs. The Grob G750 has 1,000 mm of X travel against 450 mm (17.7 in) on the GROB G150. The maker publishes few comparable figures for this pair, so the table holds only three rows.
Beyond travel, the difference is the spindle interface. The GROB G150 takes HSK-A63, with HSK-E40 as an extra-cost option for small tools, while the Grob G750 is listed with HSK-A63 / HSK-A100 for heavier cutting. Rapid traverse is level in X: the Grob G750 lists 60/50/75 m/min (X/Y/Z) against a single 60 m/min (2,362 ipm) figure for the GROB G150.
Specifications Comparison
| Specification | GROB G150 | Grob G750 |
|---|---|---|
| X-Axis Travel | 450 mm (17.7 in) | 1,000 mm ▲ |
| Spindle Taper / Nose | HSK-A63 (HSK-E40 optional) | HSK-A63 / HSK-A100 |
| Rapid Traverse | 60 m/min (2,362 ipm) | 60/50/75 m/min (X/Y/Z) |
Advantages
GROB G150
- HSK-E40 interface available as an option for small-tool work
- Sized for small 5-axis parts such as stainless steel medical components
Grob G750
- 1,000 mm of X travel against 450 mm (17.7 in)
- HSK-A100 spindle interface listed alongside HSK-A63, for titanium and steel roughing
- Suits large housings, structural parts and heavy single workpieces
Verdict
These machines do different jobs, so choose by part size. The GROB G150 suits small 5-axis parts, such as stainless steel medical components, that fit within 450 mm (17.7 in) of X travel and use small tools on HSK-A63 or the optional HSK-E40. The Grob G750 suits large housings and structural parts that need 1,000 mm of X and the HSK-A100 interface for heavy roughing. With only three rows to compare, confirm other figures on each machine's own page.