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J & W Official Announcemen..
 
07/07/08
LGC31W Series
Vertical Gear Hobbing Machine - LGC31500W / LGC31800W / LGC311250W

FEATURES:

LGC31 series machine is suitable for machining straight, spiral, cylindrical gears and worm wheel etc. incooperated with reversing mechanism, it can cut herringbone gear without recess by end milling cutter and realize automatic cycling process.

When single indexing is processed, cycle maching can be realized automatically by using the end milling cutter and disc milling cutter. Single indexing also can be controlled manually independently.
The accuracy is not less than grade 7 with gear hobbing process and grade 8 with single gear indexing.
The table is centralized by hydrostatic bearing, pressure oil is supplied through gear oil divider.
The double pitch worms are used for machine. Without adjusting in radial the machine also can get good mating condition. The single worm transmitting is used for LGC31800W and LGC311250W.
Main motor is DC motor with British CT speed regulation system.
The machine is controlled by programmable controller and make all automatic cycling process variable and reliable.
 
SPECIFICATIONS: 

LGC31500W

LGC31800W
LGC311250W
Max.dia.to be hobbed without rear column
5000mm
8000mm
12500mm
Min. work piece dia.
1400mm
2400mm
2500mm
Max. workpiece width
1800mm
Max. helix angle
45°

Max. machine module

hobbing cutter (steel/cast iron)
36/ 40
End milling cutter (steel/cast iron)
50/ 65
Disc milling cutter (steel/cast iron)
40/ 55
Hobbing cutter diameter
450mm
Hobbing cutter length
550mm
Max. vertical travel
1800mm
Max. center distance (hob cutter/ table)
2950mm
4250mm
6400mm
Min. center distance (hob cutter/ table)
700mm
1200mm
1385mm
Hobbing speed
5.5~40rpm
Dia. of table
3760mm
4460mm
3700mm
Feed
Hobbing
Vertical
0.23~4.6mm/r
Horizontal
0.43~8.6mm/r
Single indexing
0.066~1.316mm/min
Rapid travel
Slide
63~157mm/min
83~157mm/min
Column
117~292mm/min
Auto tool return
57mm/min
Loading capacity
65T
100T
Total power
57.7kw
59.2kw
Overall size
Length
13810mm
13965mm
18000mm
Width
5070mm
6070mm
5070mm
Height
5200mm
5500mm
5500mm
Weight of machine
108.7T
172.6T
182T
       
 

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