Air Slip Shaft
Air slip shafts combine pneumatic core locking with controlled differential slip for accurate torque and stable multi-roll winding.
View DetailsDifferential Rewind Shafts and Friction Rings
Slip shafts, slip rings and friction elements for slitting, rewinding and multi-roll winding applications.
KENDORIC supplies multiple slip shaft structures for slitting and rewinding lines where finished rolls require controlled torque, stable core contact and balanced winding quality.
How Slip Shafts Work
Independent slip control for differential winding.
Slip shafts allow each finished roll to slip independently during rewinding. This helps compensate for small differences in finished roll diameter after slitting and keeps each roll under more consistent winding torque.
- Differential winding for multiple rolls
- Torque compensation between finished rolls
- Stable core contact
- Improved finished roll quality
The same part, four different names
If you are comparing quotations from several countries, these all describe the same product. We list them because the wording on a drawing or an enquiry rarely matches ours.
| Term | Where you will see it |
|---|---|
| Differential rewind shaft | The most common term in European and American converting; usually refers to the complete shaft |
| Friction shaft / differential friction shaft | Used interchangeably with differential rewind shaft, emphasising how the torque is transmitted |
| Friction ring / differential friction ring | The individual rings that slip on the shaft body — what we call the slip ring below |
| Slip shaft / slip ring | Direct translation of the Chinese and Japanese term; common in Asian catalogues, including ours |
Slip Shaft Structures
Select the shaft and ring structure according to core size, finished roll width, material sensitivity, roll weight and required winding tension range.
Low Tension Slip Shaft
Low tension slip shafts are designed for sensitive materials that require stable winding at low air pressure and low torque.
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DS Slip Shaft
DS slip shafts provide pneumatic locking and controlled slip for medium-tension film slitting and rewinding applications.
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Ball Slip Shaft
Ball slip shafts can be configured as center-air, pneumatic side-pressure or mechanical side-pressure structures for flexible narrow-roll winding.
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Double Ball and Roller Slip Shaft
Double ball and roller slip shafts use extended expansion contact points to support stable core holding and winding torque.
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Key Slip Shaft
Key slip shafts use rectangular metal or rubber keys to expand and contact the core for controlled differential winding.
View DetailsApplication Fit
Built for slitting, rewinding and multi-roll winding.
Slip shafts help compensate for small roll diameter differences after slitting, so each finished roll can wind with a more controlled and consistent torque.
- Film, paper, label stock, foil and composite webs.
- Packaging film, PET film, electronic film and flexible packaging laminates.
- Lithium battery-related separator, electrode, copper foil and aluminum foil slitting or rewinding applications where suitable.
| Typical Machines | Slitting machines, rewinding machines and finishing lines |
|---|---|
| Core Sizes | 3-inch and 6-inch core IDs, with custom options depending on shaft and ring structure |
| Selection Inputs | Core ID, finished roll width, roll diameter, roll weight, material, line speed and target winding tension range |
| Available Structures | Air, low-tension, DS, ball, double-ball roller and key-type slip shaft structures |
Need help choosing a slip shaft?
Send the core ID, finished roll width, roll diameter, roll weight, material and winding tension range. KENDORIC will help match the shaft and ring structure.
Ask about differential rewind shafts
Tell us the core size, the material and the slit widths, and we will come back with a shaft and ring configuration.