General Purpose Machine Tools > Gear Cutting > Gear Hobber

HEAVY DUTY GEAR HOBBER 
H400

Description

Special Accessories:
• Adjustable steady centre • Workpiece Support • Hydraulic steady support • Set of indexing change gears • Set of differential change gears • Hob arbors 
• Two-cut automatic recycling device • Two-cut automatic recycling device with change in speed, feed and direction of cut • Two-start index gearing 
• Hydraulic work clamping unit • Hydraulic end-thrust tailstock • Magnetic chip conveyor • Ring-type magazine loading device.

Standard Equipment:
• Electrical equipment complete with wiring suitable for standard 3 phase, 415V, AC supply • PLC control • Differential mechanism • Standard work clamping device with work arbor 30 • Coolant equipment with splash guards • Set of services tools • Operator's manual • AC motor with change gear or AC spindle drive and motor for infinitely variable spindle speeds at extra cost • Precision ball screw for axial feed drive • Rapid traverse with separate electrical motor 
• steady column with hydraulically operated tailstock • Free standing hydraulic power pack.
Specifications
    Unit Values
CAPACITY      
Max. dia. of spur and worm gear   mm 400
Max. module (in steel 60 -70 kgf/mm2)   mm 8
Max. travel of hob side   mm 300
Min number of teeth that can be hobbed:

a) With single-start index worm,
    low speed hob head / high speed hob head

b) With two-start index worm, 
    low speed hob head / high speed hob head		  


mm


mm

6/12


3/6
WORKING RANGE      
Dia of work tale    mm 400
Work table bore dia.   mm 100
Distance between hob and work axes:

Shifting hob head (min / max)

Universal hob head (min / max)		  

mm

mm

30/200

10/280
Dia of standard work arbor   mm 30
Mounting taper of standard work arbor     MT5
Mounting taper of hob spindle     MT5
HOB: max dia X max length   mm 186x180
Max hob shift:

Shifting hob head / universal hob head		  
mm
135/200
Clearance for long shafts   mm 750
Height of standard work support above the work table   mm 230
SPEEDS AND FEEDS      
Speeds      
Standard

Hob spindle speed in 22 steps by means of
AC motor drive (Standard / Optional)		  

rpm

45-240/90-480
Special

Hob spindle speed infinitely variable by means of
AC spindle drive and motor (Standard / Optional)		  

rpm

40-240/80-480
Feeds      
Feeds infinitely variable in the range Axial feeds   mm/W.r 0.23-6.35
Tangential feed (only for universal hob head)   mm/W.r 0.057-1.6
Radial feed hydraulic   mm/min 0.1-15
Rapid feeds

Axial

Tangential (only for universal hob head)

Radial		  

mm/min

mm/min

mm/min

710

180

300
POWER      
Main motor - AC (Standard)  1500 - 3000 kW 6.1/7.5
Main motor - Infinitely variable speed spindle drive (optional)  500 - 3000 kW 9
Hydraulic motor  1500 kW 2.2
Rapid traverse motor  1500 kW 2.2
Coolant motor 3000 kW 0.37
Total connected load   kVA 16
ELECTRICAL SUPPLY      
Electrical motors   415V, 3 phase, 50 Hz
Electromagnetic clutches & magnets   24V, DC
Control circuit   220V, 1 phase, 50 Hz
Machine lamp  60W 220V, 1 phase, 50 Hz
SPACE REQUIREMENTS AND WEIGHT      
Space required for installed machine
(length x width x height)		   mts 2.5 x 2.65 x 2.5
Approx. weight   kgf

7000
• Illustrations and specifications are not binding in detail and are subject to modifications without notice. For further  details, contact us.
• Standard and special accessories/equipment listed are provisional. Final list is as per the quotation.