
The Twin Head Blown Film Machine is an economical film blowing equipment specially developed for mass production of PE films. Equipped with two sets of die heads and independent winding mechanisms on one main extruder, it can produce two rolls of plastic film simultaneously, greatly boosting output per unit floor space. It is ideal for large-scale production of narrow-width films such as vest bags, flat bags and continuous-roll garbage bags.
The Twin Head Blown Film Machine significantly saves workshop space, electrical control and auxiliary equipment investment, delivering a faster return on investment. The twin heads can either produce film of the same specification at the same time to expand capacity, or flexibly manufacture films with different widths, thicknesses or colors to realize flexible multi-variety production on one machine, meeting fast changeover requirements for small and medium orders.
Adopting a proven single-screw extrusion structure, together with an accurate temperature control system and stable traction & winding devices, the whole machine runs steadily with a low failure rate and simple daily maintenance, making it suitable for long-term continuous production in packaging factories.
A complete set of Twin Head Blown Film Machine consists of main extruder, twin die heads, lifting cooling tower, traction unit, dual-station winder and independent control cabinet. Optional upgrades including rotating die head and automatic tension control are available. Thanks to its compact structure, stable output and high cost performance, this model has been exported to many countries, and serves as a mainstream choice for small and medium-sized plastic packaging enterprises to expand production and add new film lines.
About us

Ruian Mingfeng Machinery Co., Ltd. is a specialized manufacturer engaged in the R&D and production of plastic machinery. Our main product range covers blown film machines, plastic bag making machines, printing machines, as well as plastic recycling equipment.
Since establishment, we have kept market-oriented development and focused on technical innovation to launch continuously upgraded machine models. Supported by reliable product quality and trustworthy brand credibility, our equipment enjoys strong sales across the globe. Our products have been exported to Russia, Southeast Asia, the Middle East, Africa, South America and numerous other regions, earning consistent recognition and trust from customers worldwide.
| Model | SJ-55 |
| Raw Material | HDPE / LDPE / LLDPE |
| Film Layers | 1 Layer |
| Screw Configuration | Φ55mm × 2 |
| Screw L/D Ratio | 30:1 |
| Main Motor Power | 18.5kW × 2 |
| Max. Folding Width | 500mm × 2 |
| Film Thickness | 0.006 ~ 0.08 mm |
| Total Output | 60 ~ 110 kg/h |
| Air Ring | 2 Sets |
| Winding System | Two-station surface friction winding |
| Cooling Blower | 3.0kW × 2 |
| Heating Power | 36 kW |
| Machine Weight | 4200 KG |
| Overall Dimension | L5600 × W2600 × H6800 mm |
| Optional Parts | Rotary Die Head, Auto Material Loader, Online Edge Trim Recycling Machine, Dual Frequency Conversion Tension Winding, Silent Blower |
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