High-Contact Differential Winding Shaft
Double ball and roller slip shafts use extended expansion contact points to support stable core holding, repeatable pull force and controlled winding torque.
Double-Ball Roller Winding Structure
Suitable for 3-inch and 6-inch core winding with rubber, aluminum or paper cores where stronger ring contact and repeatable pull force are required.
| 3-inch Ring | 75.5 mm OD, 78.2 mm expansion point |
|---|---|
| 6-inch Ring | 151 mm OD, 155.5 mm expansion point |
| Core Materials | Rubber, aluminum and paper cores |
| Widths | 3-inch: 15-50 mm; 6-inch: 25-50 mm |
| Inner Diameters | 60 mm standard, 55 mm with bearing, custom to shaft core |
Slip Ring
Double-ball and roller slip rings can be selected according to core size, ring width, contact structure, core material and required winding torque.
Confirm core material, core inner diameter, required width, winding tension range, shaft structure and whether the application needs low starting tension or higher roll-holding force.
Technical Reference Data
Reference values should be confirmed according to the actual shaft structure, ring width, groove material, core material and air path before final selection.
Test condition: 19 grooves with kraft material, 25 mm wide double-ball plus roller slip ring.
| Item | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air Pressure (kg/cm2) | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 |
| Pull Force (N) | 68.7 | 65.4 | 65.8 | 66.8 | 65.8 | 66.7 | 65.8 | 65.7 | 67.5 | 66.4 | 65.6 | 60.3 |
| Air Pressure (kg/cm2) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Pull Force (N) | 62.7 | 60.8 | 61.8 | 66.8 | 61.9 | 63.7 | 67.8 | 63.7 | 62.4 | 63.8 | 60.2 | 64.5 |
Test condition: 19 grooves with wool felt, 25 mm wide double-ball slip ring.
| Item | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air Pressure (kg/cm2) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Pull Force (N) | 30.0 | 36.4 | 35.8 | 31.4 | 38.4 | 40.3 | 32.8 | 34.3 | 37.1 | 34.8 | 32.4 | 35.3 |
| Air Pressure (kg/cm2) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Pull Force (N) | 33.7 | 38.1 | 34.5 | 32.7 | 33.2 | 36.5 | 36.3 | 34.5 | 35.6 | 33.9 | 35.8 | 33.2 |
Air slip shafts combine pneumatic core locking with controlled differential slip for accurate torque and stable multi-roll winding.
View DetailsLow tension slip shafts are designed for sensitive materials that require stable winding at low air pressure and low torque.
View DetailsDS slip shafts provide pneumatic core locking and controlled slip for medium-tension film slitting and rewinding applications.
View DetailsBall slip shafts can be configured as center-air, pneumatic side-pressure or mechanical side-pressure structures for flexible narrow-roll winding.
View DetailsKey slip shafts use rectangular metal or rubber keys to expand and contact the core for controlled differential winding.
View Details