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Cantilever airshafts

Cantilever airshafts
The cantilever expanding shafts are specially designed to facilitate the loading and unloading of rolls. Ideal for rolls weighing less than 100 kg. Special designs available for heavy loads.

STANDARD DIAMETERS

For roll core Ø70 mm
Expansion range Ø69-78 mm
For roll core Ø76 mm
Expansion range Ø75-79 mm
For roll core Ø152 mm
Expansion range Ø148-157 mm
Special dimensions from Ø25mm to Ø300mm

SHAFTS WITH HIGH STRENGTH AT LOW WEIGHT

This table shows the basic data on expansion ranges, grip coefficients, and weights of different types of shafts.

These data can be improved with custom designs always available from our engineering team.

Technical Data Table
Body diameter
[mm]
69
69
75
148
Operating diameter with short expanders
[mm]
73
73
79
/
Operating diameter with long expanders
[mm]
78
78
84
157
Number of expanding strips
[N/lin m]
5
6
6
6
Radial clamping force (6 bar)
42000
50400
50400
50400
Torque transmission with cardboard cores
[N*m/lin m]
Expanders in rubber 0.4
630
756
816
1552
Expanders in nylon 0.35
551
662
714
1358
Expanders in aluminum 0.35
551
662
714
1358
Torque transmission with steel cores
[N*m/lin m]
Expanders in aluminum 0.7
1103
1323
1429
2717
Expanders in nylon 0.25
394
473
970
970
Expanders in aluminum 0.25
394
473
970
970
Weight of the pneumatic expanding shaft (without journals or end caps)
[kg/lin m]
5,68
5.36
6,41
7,54
Recommended inflation pressure
[bar]
6
6
6
6