Internal grinding machines are designated for grinding of cylindrical and cone (with apex angle max. 60°) through and recess holes.

Purpose and application

Internal grinding machines are designated for grinding of cylindrical and cone (with apex angle max. 60°) through and recess holes. Machines are equipped with face grinding device that allows to grind product outer end simultaneously with hole grinding.
Area of internal grinding machines application: machine engineering enterprises with short-run and batch production, tool-making and repair facilities.


  

 

 

Main technical characteristics
ParametersUnit of measureModel designation
3К228МА3К228МВ3К229МА3К229МВ

Maximum diameter of the installed product

mm

400

560 800

Maximum diameter of grinded hole

mm

300

200 500 400
Minimum diameter of grinded hole mm 50 100
Maximum length of the installed product mm 320 200 500 320

Maximum length of grinding

mm

320

200

500 320

Maximum rotation angle of workhead

degree

30

Processing accuracy:

- constancy of diameter in longitudinal section

- roundness

 µm

 

3

 

1.6

 

4

 

3

 

3

 

1.6

 

4

 

3

Surface roughness of the product Ra:

- cylindrical inner surface

- flat end surface

µm

 

0.08

0.32

 

0.32

0.63

 

0.08

0.32

 

0.32

0.63

Dementions:

- length

- width

mm  

4150

2270
 

4005

2305
 

4750

2530

 

4630

2405 
Weight  kg 6400 6900 8300 8600

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