MZ 120
CNC Gear Hobbing Machine
24 DP
Max Pitch Rating
5,000
RPM Hob Speed
8
CNC Axes

High-speed direct-drive hob head with CNC shifting:
5,000 max rpm (hobbing), 8,000 max rpm (milling).
Flexible dialogue programming for:
One or two gears on a single workpiece.
Radial, axial, climb, and/or conventional hobbing on a single- or two-cut cycle.
Crowning (lead modification).
Deburring using two equal hobs.
Single- or multi-start worm milling for double worms with both right and left hand, and deburring at worm thread entry and/or exit.
Multi-start worm hobbing.
Miter gear (straight bevel) cutting by index milling or Conikron generating.
Cast iron base for superior dynamic stability.
Flexible automation systems.
Hydraulic deburring unit.
Optional re-hobbing (skiving) system.
Optional driven tailstock.
Versatility
Up to eight CNC axes for application versatility.
Automation
Flexible automation system with special design options.
Shiftability
Hob shifting for evenly distributed cutting tool wear.
Capacity
Part diameters up to 1.772" and shaft lengths up to 9.843".
Bolstering your quality and productivity.
The MZ 120 CNC gear hobbing machine from Monnier + Zahner offers universal hobbing and worm milling for the machining of spur and helical gears, worm wheels, worms, straight bevel gears, and other tooth profiles that can be manufactured by the hobbing or milling process.
MZ 120 Technical Specifications


Maximum pitch rating, gear hobbing | 1.00 mn | 24 DP |
Maximum pitch rating, worm milling | 1.59 mn | 16 DP |
Minimum number of teeth, gear hobbing | 4 teeth | - |
Minimum number of teeth, worm milling | 1 tooth | - |
Maximum workpiece diameter | 45 mm | 1.772 in |
Maximum axial travel | 200 mm | 7.874 in |
Maximum workpiece length - manually loaded | 250 mm | 9.843 in |
Maximum workpiece length - automatically loaded | 165 mm | 6.496 in |
Maximum radial travel of hob head | 27 mm | 1.063 in |
Maximum axial position of tailstock | 200 mm | 7.874 in |
Maximum spindle speed, hobbing | 5,000 rpm | - |
Maximum hob diameter | 32 mm | 1.260 in |
Maximum milling cutter diameter | 70 mm | 2.756 in |
Maximum cutter width | 40 mm | 1.575 in |
Maximum Cutter Shift | 34 mm | 1.339 in |
Swivel range | -45° | +120° |
Machine Weight | 2,200 kg | 4,850 lb |
Helios Gear Products
635 Schneider Dr,
South Elgin, IL 60177
(847) 931-4121
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