Product Overview
Turret Center-Drive Slitting Equipment converts parent rolls into multiple finished rolls through controlled unwinding, web guiding, longitudinal slitting and turret rewinding. The center-drive system transfers torque through the rewind cores, while the turret mechanism coordinates winding positions and automatic roll changeover.
Configuration is based on material type, working width, parent-roll diameter, finished-roll diameter, core size, slit width and required operating speed.
Turret Rewinding System
Center-Drive Winding
Drive torque is applied through the rewind shaft and core. This provides direct control of roll rotation as the finished roll diameter increases.
Turret Structure
The turret carries the rewind positions through the winding cycle. Core preparation, roll winding and finished-roll transfer are arranged around the same operating sequence.
Slitting Configuration
Razor cutting is suited to selected film and flexible web materials requiring a narrow slit and controlled cut edge.
Shear knives use opposing cutting surfaces and can be selected for materials requiring controlled blade engagement.
Knife spacing is set according to finished-roll width, trim requirements and the number of winding lanes.
Web Tension Control
Unwind Tension
Unwind tension is adjusted as the parent-roll diameter decreases. The setting is matched to material thickness, tensile behavior and web width.
Rewind Tension
Rewind tension is controlled through the winding cycle to maintain the specified roll hardness and edge alignment.
Web Guiding
The web guiding section corrects lateral web movement before slitting and rewinding, helping maintain the specified finished-roll position.
Automatic Roll Change
Turret Transfer
When the preset roll condition is reached, the turret moves the winding positions through the programmed changeover sequence.
Core Preparation
Cores for the next winding cycle are positioned before the active roll is completed, reducing manual intervention during routine production.
Finished-Roll Discharge
Completed rolls are moved from the winding position according to the selected unloading arrangement and production layout.
Material Compatibility
Plastic Films
The equipment can be configured for PE, PP and PET films within the applicable thickness and winding range.
Paper Materials
Paper, kraft paper and coated paper can be processed with slitting and tension settings matched to web characteristics.
Laminated Webs
Laminated and metallized structures require suitable knife geometry, tension settings and winding conditions to maintain the required roll profile.
Technical Parameters
|
Parameter |
Reference Configuration |
|
Maximum Working Width |
1,300 mm |
|
Maximum Unwind Diameter |
1,200 mm |
|
Maximum Rewind Diameter |
600 mm |
|
Maximum Mechanical Speed |
600 m/min |
|
Minimum Slit Width |
30 mm |
|
Unwind Core Size |
3 / 6 in |
|
Rewind Core Size |
3 in |
|
Rewinding Method |
Turret Center Drive |
|
Slitting Method |
Razor / Shear |
|
Web Guiding Accuracy |
±0.3 mm |
Production Applications
Flexible Packaging
Film and laminated webs can be converted into multiple finished rolls for downstream packaging processes.
Paper Converting
Controlled slit positioning and rewind tension support paper applications requiring repeatable roll widths and winding conditions.
Label Materials
Multiple narrow lanes can be configured for label and coated web materials where finished-roll width and edge alignment are important.
Industrial Webs
Other continuous roll materials can be evaluated according to thickness, width, surface characteristics and winding behavior.
Selection Points
Material Specification
Material thickness, tensile strength, elasticity, surface condition and friction characteristics determine the suitable slitting and tension-control configuration.
Roll Dimensions
Parent-roll diameter, finished-roll diameter, core diameter and roll weight determine the mechanical requirements of the unwind and rewind sections.
Slit Layout
Finished-roll widths, number of lanes and trim requirements determine knife quantity, shaft arrangement and usable web width.
Production Target
Required speed should be evaluated together with material properties, slit width, finished-roll diameter and roll-change frequency.
Quality Control
Shaft alignment, roller runout, knife positioning and critical winding components are checked during assembly and adjustment.
Web guiding, tension response, drive synchronization, speed control and turret movement are verified through the machine control system.
The complete web path is tested for slitting accuracy, winding formation, roll transfer and operating sequence under defined production conditions.
FAQ
Q: What materials can this machine process?
A: Typical applications include plastic films, paper, kraft paper, laminated webs and metallized films. Final material compatibility depends on thickness, web behavior and winding requirements.
Q: What determines the operating speed?
A: Operating speed is influenced by material properties, working width, slit width, finished-roll diameter, web tension and winding conditions.
Q: What is the role of center-drive rewinding?
A: Center-drive rewinding applies torque through the rewind core, providing direct control of roll rotation throughout the winding cycle.
Q: How is the minimum slit width determined?
A: Minimum slit width depends on material characteristics, knife configuration, core arrangement, finished-roll dimensions and required operating conditions.
Q: Can the machine be configured for different roll sizes?
A: Yes. Working width, unwind diameter, rewind diameter, core size, slitting method and tension-control parameters can be specified according to the production process.
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