Co-Extrusion Blown Film Machine (3-5 Layers PE/PP Films)
Multi-layer blown film extrusion line for making packaging films with high barrier properties
The 3-5 layer co-extrusion blown film machine is a comprehensive upgrade based on standard 1-3 layer models, specifically developed for high-end composite packaging films. The blown film machine integrates a rotating haul-off unit, ultrasonic photoelectric guiding, and fully automatic tension control, fundamentally resolving issues such as film thickness inconsistency and winding deviation. This ensures industry-leading film precision and winding quality.
The production line is compatible with a wide range of materials, including LDPE, LLDPE, EVA, and MLLDPE. Through multi-layer co-extrusion technology, it enables production of high-performance packaging films with barrier, freshness preservation, and puncture resistance properties. These films are widely used in demanding applications such as food packaging, precision electronics, pharmaceutical packaging, and high-end consumer goods.
| Number of film layers | 3-5 layers (customizable) |
| Thickness range | 0.015-0.15mm (tolerance ±3%) |
| Width range | 300-2500mm |
| Max. roll diameter | 600/800/1000mm (optional) |
| Equipment parameters | |
| Customization | Fully customizable across the entire process |
| Production line speed | 20-150m/min |
| Extrusion output | 80-300kg/h |
| Installed power | 50-180kW |
| Overall dimensions (L×W×H) | 20-40×4-6×3-5m |
| Rotating haul-off speed | 0-30rpm (adjustable) |
| Web guiding accuracy | ±0.5mm |
| Tension control range | 5-500N |
| Control system | PLC touch screen, optional remote diagnostics |
| Power supply requirement | 380V/50Hz (customizable) |
Electrical control system
HMI interface with storage of 100 recipe parameters
Intelligent material handling system
Features multi-hopper automatic dosing, drying, and dehumidification functions.
High-efficiency extrusion system
3-5 high-precision extruders with multi-zone temperature control
Precision die head system
Multi-layer spiral co-extrusion die with optimized flow channels
Cooling and sizing system
High-efficiency air ring with optional internal cooling
Haul-off frame
Bubble guide
Gusset boards
Upper nip rollers
Upper roller unit for eliminating internal film stress
Ultrasonic photoelectric guiding system
Automatic correction with precision control to ensure thickness uniformity
Dual-station friction winding system
Fully automatic dual-station winder with tension sensor feedback
Auxiliary systems
Bag-making machine, scrap recycling unit, static eliminator
Exceptional thickness uniformity
By combining upper roller and automatic tension control, film thickness uniformity is improved by approximately 40%.
High-precision intelligent control
The ultrasonic photoelectric guiding system maintains running accuracy within ±0.5mm, ensuring stable film alignment.
Efficient and stable production
Dual-station winding enables continuous operation, increasing overall equipment efficiency by approximately 25%.
- Flexible material configuration: The blown film machine supports fast switching between different 3-5 layer material combinations to meet diverse packaging requirements.
- Energy-efficient operation: Optimized extrusion and drive system design reduces energy consumption by approximately 18%.
- User-friendly operation: Recipe storage and recall functions shorten product changeover time to less than 30 minutes.
- Reliable quality assurance: Key components adopt imported configurations, with an average mean time between failures (MTBF) exceeding 1000 hours.