Pfauter P 400 CNC Gear Hobbing Machine
Key Specifications
Spindle Power
Max Workpiece ⌀
Repeatability
max module
max face width
max hob diameter
How much does the Pfauter P 400 CNC Gear Hobbing Machine cost?
Estimated price range
Our best estimate for a cnc gear cutting machine in this class — not a quote from Pfauter (Liebherr). Configuration moves it a long way.
Overview
The Pfauter P 400 CNC Gear Hobbing Machine cuts gears up to 400 mm (15.75 in) in diameter, to a maximum module of 10 mm and a face width of up to 350 mm (13.78 in). The hob spindle is rated at 22 kW and runs at up to 1,500 RPM. The listed figures should be confirmed against the documentation of the unit being considered.
Synchronization between hob and workpiece is by electronic software gearbox, with no mechanical change gears. A change of tooth count is therefore a data entry and not a change-gear calculation and swap, which shortens changeovers between gears. Six CNC servo axes are listed, and the control is a Siemens SINUMERIK 840D sl.
The hob head tilts to accommodate the helix angle, so helical gears are within scope as well as spur gears. The tilt range is not listed. Maximum hob diameter is 180 mm (7.09 in). Conventional and climb hobbing are both listed, wet and dry, and a hob speed of up to 1,500 RPM leaves room for dry hobbing at high cutting speeds with suitable hobs.
Repeatability is listed at ±0.003 mm. Machine weight is ~11,500 kg, so foundation and crane capacity need checking. The table gives no axis travels, table speed or workpiece weight limit.
Full Specifications
| Parameter | Value |
|---|---|
| Max Workpiece Diameter | 400 mm (15.75 in) |
| Max Module | 10 mm |
| Max Face Width | 350 mm (13.78 in) |
| Max Hob Diameter | 180 mm (7.09 in) |
| Hob Spindle Speed | Up to 1,500 RPM |
| Spindle Motor Power | 22 kW (hob spindle) |
| CNC Axes | 6 CNC servo axes |
| Synchronization | Electronic software gearbox (no mechanical change gears) |
| Hob Head Tilt | Yes — helix angle accommodation |
| Hobbing Mode | Conventional and climb; wet and dry |
| Control System | Siemens SINUMERIK 840D sl |
| Repeatability | ±0.003 mm |
| Machine Weight | ~11,500 kg |
Specifications compiled from manufacturer literature and industry references. Not independently verified against a published spec sheet — confirm with the manufacturer or an authorised dealer before making a purchasing decision.
Strengths & Limitations
Strengths
- Gears up to 400 mm (15.75 in) in diameter, module up to 10 mm, face width up to 350 mm (13.78 in)
- Electronic software gearbox with no mechanical change gears
- 22 kW hob spindle running at up to 1,500 RPM
- Conventional and climb hobbing, wet and dry
- Repeatability listed at ±0.003 mm
Limitations
- Hob diameter is limited to 180 mm (7.09 in)
- The hob head tilt range for helical gears is not given
- No table load, axis travel or table speed is listed
- At ~11,500 kg it needs a foundation and a lifting plan
Best For
Frequently Asked Questions
01
Maximum workpiece diameter is 400 mm (15.75 in), maximum module is 10 mm and maximum face width is 350 mm (13.78 in). The hob itself can be up to 180 mm (7.09 in) in diameter.
02
No. Synchronization is listed as an electronic software gearbox with no mechanical change gears. The ratio between hob and workpiece is set in the control, a Siemens SINUMERIK 840D sl, across 6 CNC servo axes.
03
The hob head tilt row reads yes, for helix angle accommodation, so helical gears can be cut. The table does not state the tilt range, which sets the largest helix angle, so confirm it for the gear you have in mind.
04
Yes. The hobbing mode row lists wet and dry cutting, along with conventional and climb hobbing. Dry cutting depends on the hob material and coating and on chip removal, so check how a particular machine is equipped for it.
Videos
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