Hobbing in a bigger dimension

The Felsomat Flexible Hobbing Center 280 280 is setting a new standard in the complete machining of precision gears. Especially developed for high speed cutting (HSC process) for bigger gears of car transmissions, the FHC 280 280 is reducing the cost per part up to 30% with the integration of chamfering, deburring and parallel loading –unloading in a gear manufacturing system –and all this with a minimum of floor space and a maximum of work area. Based on the proven components of the FHC platform, the FHC 280 was developed as a single spindle machine for the precision machining of larger gears.

High Performance Facts:

  • Chip-to-chip time < 6 seconds
  • Work piece diameter up to 280 mm possible
  • Lowest cost per piece and longer tool life
  • Ideal for dry machining
  • Rigid and sturdy work pice –and tooling spindle, increased cutting paramters and tool life.
  • Shorter main time through
  • a higher material removal rate
  • Finish machinig in final quality IT4 to IT5 with the single cut or a dressing cut process
  • Easy change over through excellent access and ergonomical work holding and hob tool change < 10 min.
  • Easy operator interface with intelligent technology software package
  • Singular construction design with lift hooks for easy redeployment

For a multitude of manufacturing possibilities:

  • Complete machining – hobbing, chamfering, and deburring – of gear profiles in one clamping
  • Push-roll-deburring with fettling wheel and elimination of the resulting scondary burr at the flank with the dressing cut

Convenient tool change:

To change the hob cutter, the hob head is swiveled into a vertical position prior to the operator accessing the work area. Based on the excellent access and the use of both hands a hob cutter change is possible in only 30 seconds.

Precision to the µm, day after day, year after year

All hobbing machines of the FHC platform have a mono-block machine base made from mineral base concrete for maximum rigidity with optimum damping characteristics and high dynamic axis servo drives. Direct driven synchron motors for the work piece spindle and the tool spindle with high resolution encoders, guarantee a high dynamic feedback control system, highest quality and a long life of the production machine.

Technical Data

Work Piece Diameter max. 50 - 180 mm
Modul max.* 4 mm
Hob Cutter Diameter min.
Hob Cutter Diameter max.
60 mm
100 mm
Hob Cutter overall Lenght min.
Hob Cutter overall Lenght max.
200 mm
310 mm
Hob Cutter lenght teethed max. 224 mm
Hob Arbor cylinder shaft diameter
32 mm
Counter support short taper Ref. Diameter
25 mm
Hob Spindle-Power Rating (S6-60%)
23 kW
Hob Spindle-Speed max. 7.000 min.-1
Work Piece Spindle Power Rating
2 x 15 kW
Work Piece Spindle Speed max.
620 min.-1
Axial Travel max.
(Z-Axis)

250 mm
Radial Travel max.
(X-Axis)

140 mm
Swivel Range of Hob Head (A-Axis)
+/- 35°
Tangential Travel max. (Y-Axis)
200 mm
Axial (Rapid traverse) 40 m/min.
Radial (Rapid traverse) 40 m/min.
Tangential (Rapid traverse) 12 m/min.
Connected Load SIEMENS 840 D
Control
50 kVA
Weight Base Machine 10.000 kg
Floor Space Base Machine (w/o Chip Cart)
ca. 7 m²