PFAUTER P 1501 – Year 1977
Max. gear Æ (without counter bracket) 1,500 mm
Max. gear Ø with counter bracket 1,200 mm
Hobbing length 600 mm
Module, max. 16

Minimum no. of teeth (index gear box ratio 1:144) 9
Distance between hob and workpiece approx. 100 – 800 mm
Mounting height in counter bracket, approx. 500 – 900 mm

Table Ø 1,200 mm
Table bore 300 mm
Hobbing slide swivelling approx. 240°
Hob Ø x length 230 x 280 mm
Hob mandrel Ø x taper 32 – 80 x MK 5
Hob shifting, max. approx. 250 mm
Hob spindle speeds, infinitely variable 30 – 180 rpm

Feed range, axial, infinitely variable 0.05 – 6.3 mm/rev
radial, infinitely variable 0.18 – 2 mm/rev
tangential, infinitely variable 0.22 – 2.5 mm/rev

Spindle drive, approx. 15 kW Total electrical load approx. 30 kW – 460 V – 60 Hz
Weight of machine, approx. 19,000 kg

Accessories / Special Features
Attention: This Machine is executed as a INCH-VERSION and the Voltage is 460 V 60 Hz (USA)
Universal hobbing head. Automatic hob shifting Device. Shift adjustment can be preset via an
electric counter mechanism in order to use the hob on full length, tangential movement for worm gears.
2-cut device for roughing and finishing whereby the second cut can be in the same or in
the opposite direction. Hobbing values can be entered via a potentiometer. Hobbing depths are
set by cams and limit switches.
CROWN Hobbing Device over a template, Prime number gear teeth hobbing device.
Automatic run-out device for higher cutting values for plunge-cut / run-out.
Hydraulic climb cutting device built in the column.
Radial / axial quick feed and table quick feed.
Differential drive for helical gears.
Approx. 60 change gears.
4 hob mandrels, various sizes.
Continuously lubricated hob counter bearing
Coolant equipment with magnetic chip conveyer.
Pendulum control.
Workpiece counter bracket, which can slide backwards approx. 200 mm, with foldable tailstock.