
This Two Color Coextrusion Blown Film Machine is a customized upgraded model of conventional PE blown film equipment, independently developed and produced by Ruian Mingfeng Machinery Co., Ltd. Adopting double-screw co-extrusion technology, the machine can simultaneously extrude two different colors of polyethylene raw materials, stably produce vertical striped color plastic films, which is widely favored by packaging manufacturers for making supermarket vest bags, garbage bags and color packaging rolls.
The core advantage of the Two Color Coextrusion Blown Film Machine lies in its independent double extrusion system and precise temperature control cabinet. Each extruder is equipped with an individual temperature regulation module to ensure uniform plastic melting and consistent color stripe thickness. The upper lifting frame optimizes the film bubble cooling and traction structure, effectively improving film flatness and production efficiency, greatly reducing the defective rate of color stripe dislocation and uneven coloring during continuous operation.
In terms of material adaptability, our Two Color Coextrusion Blown Film Machine supports LDPE, HDPE, LLDPE and other common plastic raw materials, with adjustable film width and thickness to meet diversified production demands of downstream plastic bag factories. The whole machine features stable operation, low energy consumption and easy maintenance, becoming the ideal core processing equipment for enterprises that need to produce two-color striped packaging films in bulk.
Ruian Mingfeng Machinery Co., Ltd. is a professional manufacturer focusing on plastic packaging machinery in Ruian City, Zhejiang Province, China. We specialize in R&D, production and sales of blown film machines, plastic bag making machines, printing machines and related auxiliary equipment.
Our core flagship product is the Two Color Coextrusion Blown Film Machine, which adopts mature double-screw co-extrusion technology to produce stable two-color striped PE film for shopping bags, garbage bags and packaging rolls. Apart from the Two Color Coextrusion Blown Film Machine, our product portfolio covers single-layer blown film units, high-speed vest bag making machines and flexographic printing machines, fully meeting the one-stop procurement needs of global plastic packaging factories.
We strictly control every production process with standardized assembly and complete testing procedures. Our products are well exported to Southeast Asia, the Middle East, Africa and other regions, winning consistent trust from overseas clients.

|
Model |
SJ40X2-600 |
|
Screw diameter |
Φ40 |
|
Film width(mm) |
600 |
|
Film thickness(mm) |
0.006-0.1 |
|
Screw speed(rpm) |
10-110 |
|
L/D |
28:1 |
|
Main motor power(kw) |
15 |
|
Heating power(kw) |
20 |
|
Output(kg/h) |
30 |
|
Machine size(mm) |
5000x2000x4100 |
|
Machine weight(T) |
3 |
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