workpiece dia. 280 mm module 6
The gear hobbing machine HURTH WF 280 is characterized by high productivity, a stationary table, and an operating convenience. Scales are mounted on all movable slides showing each position analog. That abbreviates set up times for repetitive operations. Hydraulic clamping devices for column, head and shift slide provide high hobbing accuracy. When changing the work piece manually or changing the hob cutter, such features grant a considerable time reduction. The electronic distance sensor (Linotast) takes over the exact positioning and constant cutting depth by using a hydro-cylinder with linear amplifier.
work piece
Max. Workpiece –Ø (under specific circumstances)
280 mm (330 mm)
Max. module
6
Max. hob face width for spur gears
250 mm
Min. number of teeth
Helix angle = facing head pivoting angle
+50° /- 45°
Working area
Min./max. distance between cutter and table
25 / 260 mm
Cutting depth adjustment with Linotast
0 /25 mm
Min. /max. distance work piece table – cutting axis
200 / 450 mm
Max. travel of hob slide
Min. / max. distance between table and steady
350 / 650 mm
Max. travel of steady
300 mm
Work piece table- Ø
Table bore- Ø (Ø x depth)
100 x 315 mm
Max. travel of shifting slide (Z-travel)
170 mm
Tool
Max. cutter- Ø
145 mm
Max. cutter length
220 mm
cutter bore or clamping arbor- Ø
32,40
Taper of cutter spindle
ISA 40
Cutter spindle rpm
31-560 rpm
RPM and Feeds
Max. table rotation 1 step drive
25 rpm
2 step drive
50 rpm
Rapid travel (X-way)
1800 mm / min.
Rapid travel (Y-way)
8100 mm / min.
Feed in Y- direction (with change gears)
0,5 – 8,0 mm / WR
Shifting speed in Z-direction
72,5 mm / min.
Electric /Space required/Weight
Power required
28 kW, 380 V 50 Hz
Space required, approx.
4,8 x 3,0 x 2,5 m
Weight of the machine, approx.
9000 kg