Koepfer MZ130 - Gear hobbing/worm milling machine

The MZ130 is a gear hobbing and worm milling machine for the production of gears and worm gears, straight-toothed bevel wheels, worms and threads. It is suitable for large and small series.


The machine is mounted on a solid cast iron base, inclined to the front side by 15°.

The longitudinal-, the shift- and the plunge axis are driven by a ball screw.

The work piece spindle can be equipped with W25 collets, retractable arbors or customer specific work holding.

The CNC-tailstock clamping pressure can reach up to 3000 N, torque controlled. Below 500 N, the clamping pressure is generated by spring load.

The CNC-shift axis is integrated in the hob head and has a travel distance of 60 mm. The Hobbing- and milling spindle is equipped with ball bearings. Tool holders are fit to a cylindrical bore. The swivel angle on the hobbing- and milling spindle is programmable. The range go’s from +45° to 0° to -127°.

The spindle drive is a motor spindle.


  • Synchronous axis drive of tailstock spindle (hobbing), dismountable
  • Work piece positioning by dynamic pressure sensor
  • Customer specific loading- and unloading systems


  • Fanuc 30i-A
  • 6 servo axis, optional up to 8 axes
  • Dialog programming
  • Swiveling touch screen with user panel

Technical features

  • Structure out of solid cast iron- and steel, in vibration absorbing execution
  • Improved outlet for chips and coolant
  • Axis distance between work piece and hob up to 80 mm
  • Swivel angle hob head: gear hobbing ± 45 °, worm milling + 45° / - 37 °
  • Hob shift 60 mm
  • Clamping systems: center – center, collet W25, retractable arbor, guide bush
  • Hydraulic deburring unit
  • Automatic central lubrication
  • Revolving tailstock (axial)

Workpiece data

  • Module, depending on the material, max. 1.5 mm
  • Workpiece diameter 2 - 55 mm
  • Workpiece length up to 330 mm
  • Hobbing length up to 200 mm

Tool data

  • Gear hobbing: diameter 16 - 40 mm, length up to 65 mm
  • Worm milling: diameter 53 - 100 mm

Workpiece spindle

  • Motor spindle
  • Speed up to 1500 rpm

Hobbing- and milling spindle

  • Diameter 50 mm
  • Speed up to 5'000 rpm (8'000 rpm)
  • Power 1.5 kW
  • Torque 4.7 Nm