The Dual-Roll Film Production Machine uses a single-screw extrusion system with two die heads to produce two polyethylene film outputs. It is suitable for narrow-width film used in shopping bags, T-shirt bags, garbage bags and flexible packaging. The line integrates extrusion, film blowing, air cooling, take-up and winding. Material grade, film dimensions, output requirements and winding specifications determine the appropriate machine configuration.
Key Advantages
Two Film Outputs
The twin-head arrangement produces two film outputs from one extrusion system. It suits narrow-width film production where both outputs need to follow defined width and thickness specifications.
Integrated Layout
The extrusion, film-forming, cooling and winding sections are arranged within one production line. Published dimensions of 2.8 × 2.4 × 2.8 m provide a starting point for workshop layout planning.
Configurable Equipment
Optional equipment can include a rotary die, double winder, automatic roll changing, corona treatment, screen changer, automatic material loading and PLC-controlled electronic weighing. The final selection depends on the required film process and confirmed equipment compatibility.
Applications
Shopping and T-Shirt Bags
Produces polyethylene film for shopping bags and T-shirt bags. Film width, thickness and roll dimensions should match the downstream bag-making process.
Garbage Bags and Liners
Suitable for film used in garbage bags and liners. Resin grade and film thickness should be specified according to the required bag dimensions and finished-film properties.
Narrow-Width Packaging Film
Can be assessed for other narrow-width polyethylene packaging applications. Suitability depends on the material, required film format and operating conditions.
Technical Specifications
|
Parameter |
Specification |
|
Material |
LDPE |
|
Extrusion output |
10–25 kg/h |
|
Film width |
100–254 mm |
|
Film thickness |
0.008–0.15 mm |
|
Screw diameter |
40/45 mm |
|
Screw L/D ratio |
30:1 |
|
Screw material |
38CrMoAlA |
|
Main motor power |
7.5 kW |
|
Inverter power |
7.5 kW |
|
Die size |
LD Ø45 mm |
|
Die heating element |
Ceramic |
|
Cooling fan power |
1.1 kW |
|
Air ring diameter |
400 mm |
|
Film diameter specification |
300 mm |
|
Winding unit width |
300 mm |
|
Gearbox size |
112 |
|
Overall dimensions |
2.8 × 2.4 × 2.8 m |
|
Machine weight |
1,900 kg |
|
Electrical supply |
3-phase, 220 V, 60 Hz |
Material and Film Requirements
Resin Compatibility
The listed configuration specifies LDPE. For HDPE, LLDPE, recycled resin or blended materials, provide the material grade and composition for technical review before confirming the machine setup.
Film Dimensions
Specify the required width and thickness for each output. These values determine the appropriate die arrangement and help establish cooling and winding requirements.
Production Target
State the required hourly output and operating schedule. The published capacity is 10–25 kg/h; the achievable rate must be assessed against the selected material and film specifications.
Configuration and Customization
Auxiliary Equipment
Options may include automatic material loading, corona treatment, screen changing, automatic roll changing and PLC-controlled electronic weighing. Availability depends on the confirmed machine configuration.
Winding Setup
Specify the required roll width, roll diameter and winding arrangement. Confirm whether the production process requires two separate winding positions and automatic roll changing.
Electrical Requirements
The published electrical supply is 3-phase, 220 V, 60 Hz. Confirm the available factory supply and destination requirements before finalizing the electrical configuration.
Production and Line Integration
Bag-Making Compatibility
Match film width, thickness and roll specifications to the intended bag-making equipment. Providing the finished bag dimensions helps establish the required film format.
Installation Space
Allow sufficient space for machine access, resin loading, roll removal and routine operation. Confirm the final equipment layout and service clearances before installation.
Process Settings
Set extrusion temperature, cooling conditions and winding tension according to the selected resin and film specification. Trial-run measurements can be used to check film dimensions and winding results against agreed requirements.
Quality and Delivery Checks
Technical Verification
Check the approved specifications for material, output, film dimensions, motor power, electrical supply and winding configuration before production.
Pre-Shipment Inspection
The inspection plan can cover machine configuration, heating controls, cooling operation, winding functions and trial-run results. Film samples and measurement criteria should be agreed in advance.
Export Documentation
Confirm the packing list, commercial invoice, operating instructions, electrical documents and destination-specific compliance documents required for shipment.
How to Select the Right Configuration
Provide the following information for technical evaluation:
Resin type and material composition
Required width for each film output
Target film thickness
Required output in kg/h
Finished bag type and dimensions
Winding arrangement and roll dimensions
Available voltage and frequency
Installation space and destination country
Frequently Asked Questions
Q: What material does the machine process?
A: The published configuration specifies LDPE. Other resin grades require technical confirmation before configuration.
Q: Can it produce two film outputs simultaneously?
A: Yes. The twin-head arrangement is intended for two film outputs. The winding configuration should be confirmed for the selected machine.
Q: What is the production capacity?
A: The published output range is 10–25 kg/h. Actual output depends on resin, film dimensions, thickness and operating conditions.
Q: Can the machine be customized?
A: Yes. Configuration can be reviewed according to material, film dimensions, winding requirements, auxiliary equipment and factory conditions.
Q: What information is needed for a quotation?
A: Provide the material grade, film width, thickness, output target, winding requirements, electrical supply and destination country. Finished bag dimensions also help determine downstream compatibility.
Hot Tags: dual-roll film production machine, China dual-roll film production machine manufacturers, suppliers, factory, 1300 mm High Speed Polyethylene Film Blowing Machine, Film Blowing Machine with Automatic Web Guiding, Food Packaging Film Blowing Machine, Polyethylene Film Line with Automatic Web Guiding, PP Film Line with Automatic Screen Changing, Two Web Film Line for Retail Packaging
