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MONNIER & ZAHNER KOEPFER MZ 120

Technical details
max. wheel diameter 2-45 mm
gear width 250 mm
max. module 1,5 mm
min. module 0,5 mm
Control Fanuc 18i-MB
weight of the machine ca. 2,2 t
dimensions of the machine ca. 2100 x 1440 x 1700 m
Additional information
The combined CNC gear hobbing and worm milling machine KOEPFER MZ 120 is
characterized by its flexible usability and is used in the small module area.
Just by swiveling the milling spindle from the horizontal to the vertical
position and selecting the corresponding operating mode of the CNC control, the
worm milling machine becomes a gear hobbing machine and vice versa.

CNC control Fanuc 18i-MB (Dialog/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 tool spindle head (included as an option)
Y-axis shift axis (included as an option)
With the following production programs:
Worm milling
Hobbing
Worm hobbing
Bevel gear and spur gear milling
Bevel gear hobbing
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Milling cycles =
straight, oblique, crowned toothing,
radial, radial-axial, co- and counter-rotating milling,
roughing, finishing,
worm gears,
straight-toothed bevel gears, face gearing (option only in the partial process)
Worms
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Spiral conveyor
Machine documentation

[Technical data]
Workpieces:
Workpiece diameter 2-45 mm
Max. workpiece length 250 mm
Tooth length 150 mm
Max. module in steel=
1 mm (gear hobbing)
1.5 mm (worm milling)
0.5 mm (bevel gear hobbing)
Tools:
Cutter diameter=
16-32 mm (gear hobbing)
40-63 mm (worm milling)
Machine:
Max. setting angle of milling head=
+/- 45° (gear hobbing)
+/- 30° (worm milling)
Shift travel=
34 mm (manual adjustment)
34 mm (CNC axis)
Collet/retraction mandrel W 20
Max. speed of workpiece spindle 770 rpm.
Milling spindle drive 0.55 kW
Max. milling spindle speed 8000 rpm
Axis drives =
X-axis (plunging) / travel 80 mm via CNC
Z-axis (longitudinal feed) / travel 190 mm via CNC
C-axis (workpiece axis) via CNC
Rapid traverse =
X-axis 6000 mm/min.
Z-axis 6000 mm/min.
Hydraulic unit 0.37 kW