This machine tool can complete the boring, skiving, burnishing and other processing procedures of the inner hole. During processing, the workpiece is fixed, the tool rotates and feeds, the cutting fluid enters the cutting area through the pressure head, cools, lubricates the cutting area, and removes chips. When boring, the push boring method is used to discharge the cutting fluid and chips forward.

Through the combination of fine boring and burnishing, it can   complete  at one time the job that previously required 2-3 operations to complete , which greatly improves the work efficiency. This machine is particularly suitable for the finishing of various types of fine drawn seamless tubes.

Item

Data

Work scope

Boring ID

Ф40-350mm

Length of Job

8000mm

Job OD

100-400mm

Boring box

Center height

400mm

Spindle nose

Ф65mm

Spindle speed

150-1000r/min

  Feed data

Feed speed

5-1000mm/min（ infinite）

Rapid speed  

3000mm/min

  Accuracy

Length

1-8 m

Roughness of burnishing

≤Ra0.2-0.4μm

    Motors

Boring motor power  

60KW    AC servo

Feed motor

7.5KW   AC servo

Hydraulic motor

1.5KW      AC

Cooling motor

7.5KW X 3 

Chip conveyor motor

1.5KW、  

Lub

0.75KW、      

    Other

Pushing force of pressure head

10KN

Coolant volume

200L/min  X3

Rated pressure of coolant

2Mpa