Internal grinding machines

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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