Gleason P 400G
Key Specifications
Max Workpiece ⌀
max module
grinding spindle speed
workpiece spindle speed
workpiece diameter max
profile depth max
How much does the Gleason P 400G cost?
Estimated price range
Our best estimate for a cnc gear cutting machine in this class — not a quote from Gleason. Configuration moves it a long way.
Overview
The Gleason P 400G is a gear grinding machine listed with a maximum workpiece diameter of 400 mm (15.75 in), a maximum module of 10 mm, a grinding spindle speed of up to 6,000 RPM and a workpiece spindle speed of up to 300 RPM.
The spindle figures are the ones specific to this model. A grinding spindle that reaches 6,000 RPM lets a small-diameter wheel run at a useful surface speed, which matters on gears where a large wheel would not clear a neighbouring shoulder. Module 10 mm on a 400 mm (15.75 in) part is a coarse tooth, so the range runs well past fine-pitch work.
Gleason's table also carries three larger figures: workpiece diameter up to 1,000 mm, profile depth up to 80 mm and axial travel up to 1,000 mm. The 1,000 mm diameter does not agree with the 400 mm (15.75 in) row, and the two cannot both be the limit of one configuration. Ask Gleason which diameter, profile depth and axial travel apply to the machine being quoted before a part is assigned to it.
There is no table load row for this model. The P 800G is listed at 3,000 kg (6,614 lb), which does not carry over, so workpiece weight is a question for the quotation.
Full Specifications
| Parameter | Value |
|---|---|
| Max Workpiece Diameter | 400 mm (15.75 in) |
| Max Module | 10 mm |
| Grinding Spindle Speed | Up to 6,000 RPM |
| Workpiece Spindle Speed | Up to 300 RPM |
| Workpiece Diameter Max | 1,000 mm |
| Profile Depth Max | 80 mm |
| Axial Travel Max | 1,000 mm |
Specifications sourced from gleason.com — verified 2026-10-03
Strengths & Limitations
Strengths
- Grinding spindle speed of up to 6,000 RPM, enough for small-diameter wheels
- Maximum module of 10 mm on a 400 mm (15.75 in) workpiece diameter
- Profile depth of up to 80 mm is listed
- Axial travel of up to 1,000 mm is listed
Limitations
- Two diameter rows disagree: 400 mm (15.75 in) and 1,000 mm, so the real limit must be confirmed
- No table load is listed, unlike the P 800G with its 3,000 kg (6,614 lb) rating
- No minimum module, wheel size or machine weight is given
Best For
Frequently Asked Questions
01
The maximum workpiece diameter row reads 400 mm (15.75 in). A second row gives a workpiece diameter of up to 1,000 mm, together with 80 mm of profile depth and 1,000 mm of axial travel. The two diameters conflict, so have Gleason confirm the limit for the configuration you are buying.
02
The grinding spindle is listed at up to 6,000 RPM and the workpiece spindle at up to 300 RPM. The table gives no grinding wheel diameter, so the surface speed at the wheel cannot be worked out from these rows alone.
03
The P 800G is listed with a maximum table load of 3,000 kg (6,614 lb). The P 400G has no table load row, and its maximum workpiece diameter row reads 400 mm (15.75 in) with a maximum module of 10 mm. Workpiece weight for the P 400G has to be asked for.