This machine is suitable for large batch, small batch and single production of cylindrical spur, helical gears, worm wheel and chain wheel etc. with the process method of continuous cent.
This machine tool with wide bed, has features of good rigidity, high strength and precision, easy operation, adjustment and maintenance etc. Indexing worm gear of work table adopts precise worm wheel machine tool and special worm rod grinding bed for processing, which ensured high index precision. The worm wheel is made of high-quality copper which enhanced capacity of abrasion resistance.
The casting parts of machine tool is processed with precipitation heat treatment, which eliminated casting internal stress and avoided machine tool deformation. Machine bed and column guideway is processed with grinding treatment after quenching, which raised the hardness of guideway surface and enhanced capacity of abrasion resistance.
The adoption of drive gear for grinding and shaving process, which ensured the transmission accuracy.
 
¢ò. Specifications and main technical parameters

Maximum hobbing modulus	Steel	12 mm
	Cast iron	16 mm
Maximum workpiece diameter when processing straight tooth gear	With rear column	1000 mm
	Without rear column	1250 mm
Maximum workpiece width when processing straight tooth gear (width between centre≥200)	450 mm
Maximum travel of tool post slide	470 mm
Distance between cutter axis and work table	Maximum	690 mm
	Minimum	220 mm
Distance between axis of cutter and work table	Maximum	750 mm
	Minimum	100 mm
Spindle hole	Morse 6
Maximum dimension of cutter	Diameter	260 mm
	Length	300 mm
Diameter of changeable hobbing centre axis	27, 32, 40, 50,60 mm
Maximum axial movement of cutter	100 mm
Maximum loading capacity of work table	3 tons
Diameter of work table	1000 mm
Pore diameter of work table	220 mm
Taper bore of workpiece mandrel	Morse 6
Degree of spindle rotation	Class 7
Rotary range of spindle	16-125 r/m
Degree of vertical feed rate	Class 8
Range of vertical feed rate	0.39-4.39 mm/ work table rotation
Vertical rapid moving speed of sliding carriage	0.525 m/min
Vertical manual rotation speed of sliding carriage	0.63 mm/r
Rapid moving speed of work table	0.47 m/min
Accuracy of radial manual federate of work table	0.02 mm
Power and rated speed of main motor	N=11 Kw 1440 r/m
Power and rated speed of rapid motor	N=3 Kw  1420 r/m
Power and rated speed of rapid motor of work table	N=1.5 Kw  940 r/m
Power and rated speed of motor of hydraulic oil pump	N=1.5 Kw  940 r/m
Power and rated speed of motor of cooling pump	N=0.4 Kw  2800 r/m
Machine overall dimension (length×width×height)	3750×2040×2500 mm
Machine weight(about)	13.5T