Machine Comparison
Gleason P 400G vs Gleason P 90 WM
Gleason vs Gleason · CNC Gear Cutting
Summary
The Gleason P 400G and the Gleason P 90 WM are both Gleason gear machines, but they serve different jobs. Gleason publishes few comparable figures for this pair, so the spec table has no rows that both machines fill, and this page compares them by intended work only.
The Gleason P 400G works with a grinding wheel; it takes the larger gear diameters and coarser modules of the two and handles deep tooth forms. The Gleason P 90 WM is a cutter-based machine for small internal gears and compact external spur and helical gears, with automatic tool measurement for work where cutters are reground often.
Specifications Comparison
| Specification | Gleason P 400G | Gleason P 90 WM |
|---|
Advantages
Gleason P 400G
- Takes far larger gear diameters than the Gleason P 90 WM
- Covers coarse pitches and deep tooth forms
- Can run a small wheel at high speed where the part calls for one
Gleason P 90 WM
- Built around small internal gears
- Also covers compact external spur and helical gears
- Automatic tool measurement suits work with frequent cutter regrinds
Verdict
With no shared figures in the table, choose by the gear. The Gleason P 400G is the machine for larger gears, coarse pitches and deep tooth forms worked with a wheel. The Gleason P 90 WM is the machine for small internal gears and compact external spur and helical gears, particularly where frequent cutter regrinds make automatic tool measurement worthwhile. The two do not cover the same parts, so a shop rarely chooses between them.