Gear Cutting Tools
Hobs - Torion
Hobs - Torion
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Rotor profile cutters<br />
for screw compressors<br />
for male rotors or female rotors<br />
with inserted blades<br />
blades radially and axially resettable<br />
blade clamping by chucking wedge and screw<br />
with keyway<br />
A<br />
Roughing cutter<br />
with profile undersize<br />
staggered chip breakers<br />
positive rake angle + 10° radial,<br />
+ 10° axial<br />
B<br />
Finishing cutter<br />
rake angle 0° radial,<br />
0° axial<br />
Male rotor<br />
Female rotor<br />
Cutter for male rotor<br />
b 1<br />
HL<br />
b 1<br />
d 2 d 1<br />
KVHSS-E EV4Co<br />
NL<br />
Cutter for female rotor<br />
Cat.-No.<br />
2690 staggered teeth ■ with profile ground lands<br />
Dimensions in mm<br />
Rotor dimensions<br />
Cutter dimensions<br />
Number of<br />
blades<br />
Outside diameter Profile height d 1 b 1 male rot. b 1 female rot. d 2<br />
127,5 27,5 210 70 50 60 16<br />
163,2 35,5 220 85 65<br />
204,0 44,0 235 105 80<br />
255,0 55,0 290 125 100 80<br />
340 100 20<br />
318,0 70,0 360 160 125<br />
400,0 86,0 380 200 160<br />
Circular type cutters for rotors<br />
must be kept in close limits as<br />
regards their outside diameter,<br />
since changes in diameter will<br />
affect the generated screw profile.<br />
This is why these tools are ground<br />
by the land grinding method.<br />
The blades are radially adjusted by<br />
means of set screws, the width<br />
adjustment is made possible by<br />
the staggered serrations in steps<br />
of 0.25 mm.<br />
The cutting profiles top the rotor<br />
o.d. and generate the entire gap<br />
profile including tip radii and<br />
sealing strips.<br />
To deal with enquiries, we need<br />
workpiece drawings with profile<br />
data. We carry out the computation<br />
of the cutter profiles.<br />
Replacement blades are premachined<br />
with grinding allowance<br />
on the profile and are ground on<br />
the cutting faces.<br />
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