General Purpose Machine Tools > Gear Cutting > Gear Hobber

HIGH SPEED GEAR HOBBING MACHINE L200

Salient Features

The High speed Gear Hobbing Machine L200 has been introduced by HMT to cater to small and big batch production. The L200 is designed for workpieces upto 250mm diameter, a module of 8mm and multistart hobbing, with a hob speed range from 120 to 1600 rpm.

The main features are:
Extermely rigid machine structure • Moving column and fixed table principle • Antifriction bearings for the work table • Preloaded ball screw for the exact feed drive and tangential hob shift • Hob head with shortest overhang • High speed, high feed rates and multistart cutting for maximising production • Improtance to handling, reliability, maintenance, safety • High degree of automatic possible • Ideal for wide range of applications.

Description

Special Accessories:
• 4 start index gearing • Index change gears • Differential change gears • Magnetic chip conveyor • Hydraulic clamping fixture • Automatic hob clamping • Oil mist separator • Automatic workpiece loading devices.

Standard Equipment:

• 2 start special duplex index table drive • Automatic 2-cut working cycle • Shifting hob head • Automatic hob shifting • Main drive with continuously variable hob speed via variable speed AC spindle motor • Continuously variable axial feed with AC servo motor • Precision ball screw for axial feed and hob shift axis • Rapid traverse with separate electric motor • Hydraulic radial feed • Differential • Steady column with hydraulically-operated tailstock • Electrical equipment • Hydraulic equipment in separate hydraulic power pack • Automatic centralised lubrication for guideways • Circulating oil lubrication • Coolant attachment 
• Automatic working cycle.

Specifications
    Unit Values
Work piece diameter max. mm 250
Module max. mm 8
Hob slide travel max. mm 200
Work table diameter   mm 240
Index worm wheel diameter   mm 330
Hob diameter  max. mm 192
Hob length max. mm 250
Hob shift max. mm 200
Hob speed range (inf. variable)   rpm 120-600
(Any two ranges as standard)   rpm 75 - 375 or 
36 - 180 or 
53 - 265     
Hob spindle/table
axis spacing
-min

-max
mm

mm
25 

185
Axial feed (inf. variable)
through AC servo motor)
  mm/rev 0.1 - 1000
Capacity of main motor
(AC spindle drive)
  kW 18
Length x Width x Height   mm 4600 x 2710 x 2230
Weight of standard machine   kgf 9800
Max. Load on work table   kgf

300

• 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.