Blown Film Line Manufacturers & Suppliers in India
With continuously growing demand for high performance plastic films, manufacturers need technologically advanced blown film line to produce better film qualities, provide stable production volume, energy savings and reliability over a long period of time. Cygnet Machinery is among the top Blown Film Line Manufacturers in India, where they provide innovative Blown Film Extrusion solutions for HDPE, LDPE, LLDPE, PP, Biodegradable and Specialty polymer processing.
Blown film lines are widely used in the manufacture of packaging film for shopping bag, carry bag, garbage bag, agricultural film, stretch film, shrink film, geomembranes, liner and industrial packaging. Blown film lines are designed using precision technology, advanced automation and highly durable construction to optimize production with a superior film quality.
What is Blown Film Line?
Blown Film Line is a plastic extrusion equipment machine capable of producing continuous plastic films by extruding plastic granules into a circular die followed by a differentiating wind. As the molten plastic continues to spin a tubular film bubble is created, cooled, flattened, and then wound in rolls for further conversion into packaging products.
The latest film blown film lines are technically advanced with high precision, high performance winding systems, automatic thickness control and automatic temperature control systems in order to get films of outstanding strength, clarity and dimensional accuracy.
Key Features
- High Production Output
Designed to operate non-stop and provide maximum productivity.
- Energy-Efficient Extrusion System
Optimised heating and cooling systems minimise running costs and power usage.
- Precision Thickness Control
Helps to maintain a uniform film thickness for the entire roll.
- PLC Automation
Easy machine operation and process monitoring by touch-screen HMI and PLC-based machine control.
- Heavy-Duty Gearbox
Strong transmission system provides smooth and reliable machine operation.
- Spiral Die Head Technology
Makes better films in terms of strength, clarity and dimensional stability.
- High-Performance Air Ring
Stable bubble generation and good cooling performance.
- Automatic Winder
Properly controls winding tension to produce good-quality film rolls.
- Low Maintenance
High quality parts keep downtime to a minimum and reduce maintenance expenses.
Technical Specifications of Blown Film Lines
| Particular | Specification |
| Extrusion Technology | Mono Layer / ABA / Three Layer / Five Layer (Customizable) |
| Materials | HDPE, LDPE, LLDPE, HM-HDPE, PP, EVA, Biodegradable Compounds, Recycled Plastic |
| Width | 300 mm – 8000 mm (Depending on Model) |
| Thickness | 10 Microns – 250 Microns |
| Layers | Single Layer, ABA, Three Layer, Five Layer |
| Screw Diameter | 45 mm – 150 mm |
| Screw L/D Ratio | 30:1 / 32:1 / 34:1 |
| Output Capacity | 40 – 700 Kg/Hour (Depending on Model) |
| Die Head Type | Spiral Die Head |
| Die Size | 50 mm – 600 mm |
| Air Ring | Dual Lip / High-Efficiency Air Ring |
| Take-Up Unit | Variable Speed Nip Roll Assembly |
| Winding System | Surface Winder / Center Winder / Dual Station Winder |
| Maximum Roll Diameter | Up to 1200 mm |
| Power Supply | 415 V ±10%, 50 Hz, 3 Phase |
| Installed Power | 35 kW – 450 kW (Depending on Model) |
| Compressed Air Requirement | 6–8 Bar |
What is the working principle of a blown film line?
The manufacturing process is semi-automated with the following stages:
1.Raw Material Feeding
The extruder is fed plastic granules like HDPE, LDPE, LLDPE, PP or biodegradable, depending on the type of plastics.
2. Plastic Melting
The screw of the extruder melts and homogenates the raw material under controlled temperature.
3. Film Extrusion
The molten polymer is forced through a precision spiral die head to produce tubular plastic film.
4. Bubble Formation
A film bubble of the desired diameter and thickness is created by inflating a molten tube with compressed air.
5. Air Cooling
High efficiency air ring to uniformly cool the bubble, which will improve the film strength and transparency.
6. Bubble Collapsing
The collapsing frames and guide rollers crush the film bubble.
7. Film Winding
The final product is wound in rolls by automatic surface or center winding machines.
A high performing Blown Film Line will allow manufacturers to achieve higher efficiency, lower energy consumption and product uniformity in production of quality plastic films. A leading Blown Film Line Manufacturer in India, Cygnet Machinery offers cutting-edge extrusion solutions with a blend of innovative technology, robust engineering, and reliable customer support, empowering businesses to achieve global excellence in plastic packaging.
In the plastic packaging sector, Blown Film Line Manufacturers are significant players that offer cutting-edge extrusion systems for creating top-notch plastic films.