The Polypropylene Film Blowing Machine is engineered for stable, high-efficiency PP film production with consistent thickness control and long-term industrial reliability. It is widely used in packaging, textile wrapping, pharmaceutical packaging, and industrial protective film applications.
Engineering Structure & Core Components
The machine is built with industrial-grade components optimized for continuous PP processing:
Screw Barrel: Made of 38CrMoAl alloy steel, precision nitrided for deep hardened layer (>0.5mm), ensuring long service life under continuous high-load operation
Die Head: Hard chromium plated with precision flow channel design for stable melt distribution and reduced material degradation
Heating System: Intelligent PID temperature control with ceramic heating rings, improving thermal stability and reducing energy loss by 15–20%
Air Cooling System: Labyrinth-type air ring with uniform airflow distribution to ensure stable bubble formation
Control System: Industrial PLC system enabling real-time monitoring and parameter adjustment
Main Technical Parameters (SJ Series)
|
Model |
SJ-55 |
SJ-60 |
SJ-65 |
|
Screw Diameter |
Φ55 mm |
Φ60 mm |
Φ65 mm |
|
L/D Ratio |
28:1 |
28:1 |
28:1 |
|
Screw Speed |
15–100 r/min |
15–100 r/min |
15–100 r/min |
|
Motor Power |
15 kW |
18.5 kW |
22 kW |
|
Output Capacity |
45 kg/h |
55 kg/h |
60 kg/h |
|
Die Size |
Φ220 mm |
Φ250 mm |
Φ280 mm |
|
Film Thickness |
0.015–0.10 mm |
0.015–0.10 mm |
0.015–0.10 mm |
|
Max Film Width |
500 mm |
600 mm |
700 mm |
|
Total Power |
32 kW |
40 kW |
44 kW |
|
Machine Size |
4500×2000×3500 mm |
4500×2500×4500 mm |
4500×3800×3800 mm |
|
Machine Weight |
3.0 T |
3.5 T |
4.5 T |
Performance Advantages (Business-Oriented Value)
Stable Mass Production Capability
The Polypropylene Film Blowing Machine is designed for 24-hour continuous operation with stable melt pressure and reduced fluctuation in film thickness.
Material Compatibility
Supports multiple PP-based materials:
- Virgin PP granules
- Recycled PP materials
- PP blends for industrial packaging films
Downstream Application Stability
Produces films suitable for:
- High-clarity packaging bags
- Industrial hardware packaging film
- Food-grade outer wrapping film
- Textile protection packaging
Ensures compatibility with downstream bag-making and lamination lines.
Quality Assurance & Pre-Shipment Testing
Each Polypropylene Film Blowing Machine is delivered only after strict validation:
72-hour continuous no-load + load testing
Full film thickness uniformity inspection
Temperature stability verification under high-speed operation
Electrical load and motor stress testing
Component Transparency
Siemens / Schneider low-voltage electrical system (optional configuration)
Delta / Yaskawa inverter system
Omron temperature controllers
Industrial Application Scope
PP packaging film production plants
1
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Industrial packaging material manufacturers
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Export-oriented plastic film factories
3
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High-volume bag-making production lines
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Agricultural and protective film producers
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FAQ
Q: What payment terms are available?
A: We support T/T (30% deposit, 70% before shipment) and L/C for large orders.
Q: What trade terms do you support?
A: We offer EXW, FOB, CIF, and CFR depending on buyer preference.
Q: What is the MOQ?
A: MOQ is 1 set, as each Polypropylene Film Blowing Machine can be customized.
Q: What is the delivery time?
A: Standard delivery time is 30–45 days depending on configuration.
Q: What warranty is provided?
A: 12-month warranty with lifetime technical support and spare parts supply.
Q: What certifications do you provide?
A: CE certification and ISO9001 quality system compliance are available.
Q: How is the machine packaged for export?
A: The machine is wrapped with anti-rust film, fixed in steel frame, and packed in reinforced export wooden cases.
Q: Can the machine run continuously?
A: Yes, it is designed for stable 24-hour industrial continuous production.
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