Product Introduction
Aluminum Foil Slitting and Rewinding Equipment converts wide aluminum foil master rolls into specified finished widths through unwinding, web guiding, slitting, tension control and rewinding. Machine configuration is selected according to foil thickness, master roll dimensions, finished widths, core size, rewind diameter and required line speed.
Aluminum Foil Processing Applications
Processes aluminum foil for packaging conversion where controlled slit width, clean edges and consistent roll formation are required.
Handles aluminum foil used in insulation, thermal, electrical and other industrial converting processes.
Suitable for selected aluminum-based laminated webs when the material structure and winding characteristics match the machine configuration.
Material Range
Foil Thickness
Typical processing covers 0.006–0.200 mm. The applicable range depends on foil grade, temper, web width and master roll condition.
Web Structure
The machine can be configured for plain aluminum foil and selected laminated structures requiring controlled web handling.
Master Roll
Roll width, outside diameter, core size and weight are used to determine the appropriate unwinding configuration.
Slitting Configuration
Knife Selection
Razor or shear slitting can be selected according to foil thickness, finished width and required slit-edge condition.
Width Layout
Finished widths are arranged across the master web according to the required roll combination and available material width.
Trim Control
Knife positioning is planned around the finished-width layout to control edge trim and improve material utilization.
Rewinding Performance
Core Size
Common rewind cores include 3 in and 6 in. Other core dimensions can be specified according to the finished roll requirement.
Roll Diameter
Maximum rewind diameter can reach approximately 600 mm, depending on foil thickness, core size and winding conditions.
Roll Formation
Rewinding parameters are adjusted for roll diameter and material behavior to maintain consistent roll density and edge alignment.
Tension Control
Web Tension
Controlled tension is important when processing thin aluminum foil because changes in web force can affect tracking and roll formation.
Taper Control
Winding tension can be adjusted as the roll diameter increases to maintain stable winding conditions through the complete roll.
Web Guiding
Automatic guiding maintains the lateral position of the foil before slitting and during rewinding.
Technical Parameters
|
Parameter |
Typical Specification |
|
Material |
Aluminum foil / selected laminated foil |
|
Foil thickness |
0.006–0.200 mm |
|
Maximum web width |
1,800 mm |
|
Minimum finished width |
Approx. 50 mm |
|
Maximum unwind diameter |
1,000 mm |
|
Maximum rewind diameter |
600 mm |
|
Rewind core |
3 in / 6 in |
|
Maximum line speed |
600 m/min |
|
Slitting method |
Razor / shear |
|
Web guiding |
Automatic |
|
Tension control |
Closed-loop |
|
Rewind configuration |
Single or multi-roll |
Product Advantages
Width Consistency
Knife positioning and web control are configured around the required finished widths to maintain consistent slit dimensions.
Roll Uniformity
Controlled tension and winding conditions support consistent roll density and finished-roll geometry.
Configuration Range
Slitting and rewinding sections can be selected according to foil thickness, width layout and finished roll specifications.
Process Control
Web guiding, tension control and slitting work as a coordinated process from master roll to finished roll.
Finished Roll Quality
Slit Edge
Knife type and operating conditions are matched to foil thickness to support a clean, consistent slit edge.
Edge Alignment
Web guiding and winding control help maintain aligned finished-roll edges during continuous rewinding.
Surface Condition
Web-contact conditions are selected according to foil characteristics to limit unnecessary surface marking during processing.
Production Requirements
Prepare foil thickness, alloy, master roll width, outside diameter, core diameter and maximum roll weight.
Specify finished widths, number of rolls, rewind diameter and core size required for production.
Required line speed and production volume determine the suitable unwinding, slitting and rewinding configuration.
Quality and Testing
Assembly Inspection
Major mechanical assemblies are inspected during manufacturing and machine assembly.
Running Test
Machine operation is checked for web guiding, slitting, tension response and rewinding performance before shipment.
Roll Verification
Trial rolls can be checked for finished width, slit-edge condition, alignment and winding consistency against agreed specifications.
Selection Checklist
Before requesting a machine configuration, prepare:
• Foil grade and thickness
• Master roll width
• Master roll diameter
• Maximum roll weight
• Required finished widths
• Finished roll diameter
• Core diameter
• Required line speed
• Slitting method
• Production volume
Complete material and roll data provides the basis for selecting the machine configuration and operating range.
FAQ
Q: What aluminum foil thickness can be processed?
A: A typical range is 0.006–0.200 mm. The applicable range depends on foil grade, temper, web width and master roll condition.
Q: What is the maximum web width?
A: The listed configuration supports a maximum web width of 1,800 mm. The final working width depends on the selected machine configuration.
Q: What finished widths can be produced?
A: Finished widths can start from approximately 50 mm. The practical minimum depends on foil thickness, knife arrangement and rewind requirements.
Q: What information is required for machine selection?
A: The key inputs are foil grade, thickness, master roll dimensions, roll weight, finished widths, core size, rewind diameter and required line speed.
Q: Can laminated aluminum foil be processed?
A: Selected laminated foil structures can be processed when their thickness, web structure and winding characteristics are compatible with the proposed configuration.
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