Double Support Expanding Shafts
DOUBLE SUPPORT EXPANDING SHAFTS
Our lightweight double support expanding shafts adapt perfectly to the needs of each production process, offering a wide variety of designs and options.
They are manufactured with high-strength materials to withstand demanding work environments while ensuring precise and safe material handling.
STANDARD DIAMETERS
For core Ø70 mm (ID 70mm)
Expansion range: Ø69–71 mm
For core Ø76 mm (ID 3')
Expansion range: Ø74–76 mm
For core Ø152 mm (ID 6')
Expansion range: Ø148–157 mm
Custom dimensions available: Special manufacturing from Ø25 mm to Ø300 mm.
Lightweight Double-Supported Expanding Shafts
This table shows the basic data for expansion ranges, gripping coefficients, and weights of the different types of shafts.
These parameters can be enhanced 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 |
