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Divisions Metal Fabrication Focur swing frame grinding wheels

Castings which are too large or too heavy cannot be carried to the wheel; the wheel has to be brought to the workpiece. Swing frame grinders use grinding wheels in diameter range 300 - 600 mm.

The peripheral speed can be 50 m/s, 63 m/s or 80 m/s. Wheels which run at 50 m/s and 63 m/s are applied withough glass fibre reinforcement, altough for the 63 m/s it is still often desired as an extra safety precaution.

Grinding wheels with 80 m/s have to be fibre reinforced.

 

Standard dimension range for 50 m/s and 63 m/s
Diameter
Thickness
Bore
350 mm
40
50
127
127
400 mm 50
63 		127
127
500 mm
50
63
80
152.4
203.2
203.2
600 mm 63
80 		203.2
304.8
 
 
Standard dimension range for 80 m/s
Diameter
Thickness
Bore
300 mm
20
32
25.4
25.4
400 mm 50 127
500 mm
50
65
80
127
203.2
203.2
600 mm 60
80		 203.2
203.2
 
 


Specification without fibre reinforcement for Vs < 63 m/s
Material
Standard recommendation
Special abrasive
Non-ferrous metals
-
52A165Q4B59/63
Cast steel 52A14P5B83/63 -
Grey & spheroidal cast iron
M80AC145P4B83/63
M215A145Q4B83/63
Malleable cast iron, chilled cast iron M80AC145O4B83/63 M215A145P4B83/63
 

Specification with fibre reinforcement for Vs 80 m/s and 63 m/s
Material
Standard recommendation
Special abrasive
Non-ferrous metals
-
52A20N5BF88
Cast steel 52A165O4BF88 -
Grey & spheroidal cast iron
52A20P5BF88
M215A20P5BF88
Malleable cast iron, chilled cast iron 52A20O5BF88 M215A20OBF88
 
 
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