GEAR HOBBING MACHINE OFA 75 CNC 6

The OFA CNC 6 vertical gear hobbing machine is designed to cut spur gears or helical gears, sprocket wheels, worm gears hobbed by the radial tangential method, gears with longitudinal modification, spline shafts and other types of gearing generated by the hobbing process. The modern design with backlash elimination of hob carriage and table offers hobbing of hardened gears and high speed milling of non-hardened gears with carbide tipped tools. The machine is suitable for mass production as well as piece production. The operation, setting and maintenance of the machine are designed to be simple, swift and easy. The automatic work cycle of the machine along with possible application of a work-piece magazine enables to operate several machines by one operator. In its basic version the machine is equipped with SIEMENS Sinumeric 840D sl control system and drives. There are six controlled machine axes.

Technical data

Operating range
Max. module to be hobbed mm: 12 (14*) 
Max. dia. to be hobbed mm: 750 (900*) 
Min. number of gear teeth: 3 
Max. helix angle of teeth °: ±45 
Max/min hob axis distance from:
Table axis mm: 580/60 
Surface of table mm: 850/220 
Clamping table
Diameter mm: 680
Bore mm: 150 
Hob carriage
Taper in spindle: MORSE 5 
Max. carriage travel mm: 630
Hob tangential adjustment mm: 250 
Max. tool diameter mm: 190
Max tool length mm: 300 
Range of tool speeds: 25 – 450 
Main motor output kW: 28 
Working feed axial mm.min-1: 0.01– 340 
radial mm.min-1: 0.01 – 170 
tangential mm.min-1: 0.1 – 170 
Rapid traverse axial mm.min-1: 2,500 
radial mm.min-1: 3,000 
tangential mm.min-1: 3,000 
Machine
Total power input kVA: 70 
Dimensions: lenght mm: 4,050 
Width mm: 3,530
Height mm: 3,100 
Weight kg: 13,500