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MONNIER & ZAHNER KOEPFER MZ 120

Machine Details:
Stock number: 1022-2352
Machine type: Gear Hobbing Machine – Horizontal
Manufacturer: MONNIER & ZAHNER
Model: KOEPFER MZ 120
Year of manufacture: 2009
Condition: Very good
Control type: CNC
Control: Fanuc 18i-MB
Location: Monheim am Rhein
Country of origin: Switzerland
Availability: Immediately
Freight basis: Ex stock, free on truck loading platform

Technical Details:
Max. gear diameter: 2–45 mm
Gear width: 250 mm
Max. module: 1.5 mm
Min. module: 0.5 mm
Control: Fanuc 18i-MB
Total power requirement: kW
Approx. machine weight: 2.2 t
Approx. dimensions: 2100 x 1440 x 1700 mm

Additional Information:
The combined CNC hobbing and worm milling machine KOEPFER MZ 120 is characterized by its flexible application and is used for small module ranges. By simply swiveling the milling spindle from the horizontal to the vertical position and selecting the corresponding operating mode on the CNC control, the machine switches from worm milling to gear hobbing and vice versa.

CNC control Fanuc 18i-MB (conversational/ISO)
CNC axes:
X-axis: Plunge axis
Z-axis: Longitudinal axis
C-axis: Workpiece spindle
B-axis: Tool spindle
V-axis: Loader axis (longitudinal)
A-axis: Swivel axis of tool spindle head (included as option)
Y-axis: Shift axis (included as option)

With the following machining programs:
Worm milling
Gear hobbing
Worm hobbing
Bevel and spur gear milling
Bevel gear hobbing
Milling cycles include:
- Straight, helical, and crowned gears
- Radial, radial-axial, climb and conventional milling
- Roughing and finishing operations
- Worm gears
- Straight-toothed bevel gears, face gear cutting (optionally in partial process)
- Worms

[Equipment]
300 litre coolant tank with LNS Turbo MS 250 chip conveyor
Retrofit and year: 2021!!!
Kraft and Bauer fire extinguishing system
Vibratory feeder
Machine documentation

[Technical Specifications]
Workpieces:
Workpiece diameter: 2–45 mm
Max. workpiece length: 250 mm
Hobbing length: 150 mm
Max. module in steel:
- 1 mm (hobbing)
- 1.5 mm (worm milling)
- 0.5 mm (bevel gear hobbing)
Tools:
Cutter diameter:
- 16–32 mm (hobbing)
- 40–63 mm (worm milling)

Machine:
Max. setting angle of milling head:
- ±45° (hobbing)
- ±30° (worm milling)
Shift travel:
- 34 mm (manual adjustment)
- 34 mm (CNC axis)
Collet/retracting arbor: W 20
Max. spindle speed, workpiece: 770 rpm
Milling spindle drive: 0.55 kW
Max. spindle speed, milling spindle: 8000 rpm
Axis drives:
- X-axis (plunge): Travel 80 mm via CNC
- Z-axis (longitudinal feed): Travel 190 mm via CNC
- C-axis (workpiece axis): via CNC
Rapid traverse:
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- X-axis: 6000 mm/min
- Z-axis: 6000 mm/min
Hydraulic unit: 0.37 kW

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