Greenhouse Film Blowing Machine (3–5 Layers PE Film)
Co-extrusion blown film extrusion line for producing 6–22m wide greenhouse films with 4-6°C thermal insulation
The greenhouse film blowing machine is designed for large-scale agricultural greenhouse films, supporting 3–5 layers co-extrusion production. It can produce PE films with a finished width of 6 to 22 meters, meeting the requirements of different greenhouse structures and farming environments.
With advanced multi-layer co-extrusion technology, the plastic film making machine enables greenhouse films that help increase internal temperature by 4–6°C, deliver light transmission ≥85%, provide a service life of 3 to 5 years, and allow fog droplets to dissipate within 30 seconds. The result is a more stable growing environment, stronger crop protection, and enhanced agricultural productivity for modern large-scale farming.
3-layers standard greenhouse film
PE films with an unfolded width of 6 to 12 meters, featuring light transmission ≥90% and thickness uniformity within ±3%
5-layers multifunctional greenhouse film
PE films with an unfolded width of 12 to 22 meters, featuring anti-fog effectiveness ≥6 months, UV aging resistance ≥18 months, 20% improvement in heat retention, and the performance advantages of multi-layer composite structure
Product parameters
| Item | Specification |
| Number of film layers | 1-5 layers (customizable) |
| Layflat width | 6000-22000mm (varies by model) |
| Film thickness | 0.08-0.2mm (adjustable according to requirements) |
| Light transmittance | ≥90% (standard film); ≥88% (multifunctional film) |
| Anti-fog duration | ≥6 months (multifunctional film) |
| UV resistance duration | ≥18 months (with UV masterbatch added) |
| Thermal insulation performance | 15-20% improvement compared with single-layer film |
| Service life | Standard film ≥1 year; multifunctional film ≥2 years |
Equipment parameters
| Item | |
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| Extruder specification | 150/30 | 180/30 (2 units) | 200/30 (3 units) | 120/30 (5 units) |
| Main motor power | 250kW | 315kW×2 | 355kW×3 | 132kW×5 |
| Die diameter | Ø1400mm | Ø2000mm | Ø2600mm | Ø1600mm |
| Extrusion output | 500kg/h | 700kg/h×2 | 1000kg/h×3 | 350kg/h×5 |
| Haul-off speed | 20m/min | 20m/min | 20m/min | 20m/min |
| Haul-off height | 19000mm | 24000mm | 30000mm | 24000mm |
| Guide roller length | 2800mm | 4500mm | 6000mm | 3500mm |
| Layflat width (product) | 10000mm | 16000mm | 22000mm | 12000mm |
| Cooling method | Internal cooling+external auxiliary cooling | Internal cooling+external auxiliary cooling | Internal cooling+external auxiliary cooling | Internal cooling+external auxiliary cooling |
| Control system | PLC+touch screen (multi-layer synchronous control, fault alarm) | PLC+touch screen (multi-layer synchronous control, fault alarm) | PLC+touch screen (multi-layer synchronous control, fault alarm) | PLC+touch screen (multi-layer synchronous control, fault alarm) |
Multi-layer extrusion system
Equipped with 2 to 5 extruders, melting and supplying materials for stable multi-layer film compounding
Large-diameter co-extrusion die head
Die diameter Φ1400 to Φ2600 mm, enabling precise compounding of 2 to 5 layers and supporting wide film widths
Internal cooling system
Internal cooling system ensures uniform temperature control and stable film properties
High-position haul-off system
Haul-off height 19,000 to 30,000 mm, speed up to 20 m/min, with 2,800 to 6,000 mm guide rollers for smooth traction and stable film flattening
Wide-width rewinding system
Designed for wide greenhouse films, supports tension adjustment, neat winding, and easier transportation and installation
Electrical control system
PLC+touchscreen system with synchronized full-process control, supporting parameter setting, real-time monitoring, and alarm protection
- Wide-width forming capability
Supports greenhouse films up to 22 meters wide, reducing seams and joint leakage, improving sealing performance and structural reliability - Comprehensive multi-layer functionality
Capable of producing 2–5 layers PE film, offering better heat retention (4–6°C temperature increase), fast anti-fog performance (fog disperses within 30 seconds), strong UV resistance (service life 3 to 5 years), and suitability for various greenhouse environments - High cooling efficiency
Internal cooling improves cooling speed by about 20% compared to external cooling, ensuring thickness deviation <3% and a finished product qualification rate above 99% - Stable and reliable operation
Precision mechanical structure ensures stable high-load performance, with average continuous non-failure running time of around 1,200 hours - Broad application range
Supports film widths from 6 to 22 meters, suitable for small growers, medium farms, and large agricultural bases - Easy to operate
PLC and touchscreen interface provide intuitive control. Multiple production recipes can be stored, parameter switching is fast, and operators typically master operation within 1 to 2 days