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In batch processing of the same specifications of cylindrical gears, the central distance between worktable and hob should be precisely adjusted. After finishing first gear ,move knob 17(see figure 3), so that the worktable exit driven by the rapid rolling cylinder, remove the processed gear, load gear embryo, revert the tool head to the original position with fast axial motor, move the knob 17, move the worktable forward driven by the hydraulic rapid cylinder. At this moment, the worktable return precisely to position of cutting the first gear, then the second gear can be cut. So when process gears of same specifications, adjust the machine precisely only when cut the first gear. Only when the machine tool wear to influence precision, the center distance between worktable and hob should be adjusted once again.
  • YA31160E

Product Description



Maximum hobbing modulus


12 mm

Cast iron

20 mm

Maximum workpiece diameter when processing straight tooth gear

With rear column

1300 mm

Without rear column

1600 mm

Maximum workpiece width when processing straight tooth gear (width between centre≥200)

500 mm

Maximum travel of tool post slide

530 mm

Distance between cutter axis and work table


740 mm


220 mm

Distance between axis of cutter and work table


940 mm


190 mm

Spindle hole

Morse 6

Maximum dimension of cutter


260 mm


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

1200 mm

Pore diameter of work table

275 mm

Taper bore of workpiece mandrel

Morse 6

Degree of spindle rotation

 Class 7

Rotary range of spindle

19-125 r/m

Degree of vertical feed rate

 Class 10

Range of vertical feed rate

0.47-5.28 mm/ work table rotation

Vertical rapid moving speed of slidingplate

0.525 m/min

Vertical manual rotation speed of sliding plate

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=15 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)

4082×2390×2520 mm

Machine weight


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