MAAG SH 250 300 S Gear Shaper

MAAG SH 250 300 S Gear Shaper

max. wheel diameter 3080 mm
gear width 670 mm
max. module 50
min. module 25
min. wheel diameter 200 mm
gear width 870 mm
max. number of teeth 1000
min. number of teeth 12
tool length – max. 312 mm
min. ram stroke 70 mm
dividing plate diameter 1116 mm
table bore diameter 420 mm
table travel max. 2×460 = 920 mm
ram stroke speed 3,2 – 40 m/min.
max. ram stroke 700 mm
table load 15000 kg
depth of hole 1200 mm
max. dia. of teeth cutting 2940 mm
clamping table diameter 1100 mm
[…] angle 35 °
total power requirement 71 kW
weight of the machine ca. 38 t
dimensions of the machine ca. 6,55 x 4,28 x 3,31 m



chip conveyor
Local rim support (bed mounted)
Internal gear cutting attachment JVS-250
Work base plate Ø1800 mm
Longitudinal Correction Device

The machine is practically new and will be delivered with a precision chart.
Cutting quality DIN 7! The main characteristics of the machine are excellent
accuracy and high versatility in producing external gears, internal gears,
herringbone gears, double helical gears and gear racks. The outstanding economy
of the MAAG SH 250/300 S derives from the high metal removal rate (for material
until 1400 N/mm2 and 400 HB) and simplicity of form and long tool life of the
roughing cutter, which keeps the tooling costs extremely low. After the roughing
operation, the gear teeth are finished machined in the same set-up by the
generating method. And that makes it in most of all cases possible, to avoid
grinding. With the full swivel cutter ram, any desired helix angle can be set.
The finishing generating operation yields a very good tooth accuracy in short
machining time. The machining cycles for the plunge cut and the generating
operations take place automatically. The vertical working range is so large that
even double-helical gears can usually be completely machined without altering
the set-up. The cutter ram is driven by a DC reversible motor via a 7-start
spindle. Helical gears or double helical gears with a small run-out groove could
be cut by a helical rack shaped cutter. When using the swivelling cutter holder
for cutting gears with great helix angles the ram stroke could be highly reduced.

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