News

The global blown film machine industry is undergoing a profound technological transformation in 2026, driven by surging demand for high-barrier packaging, biodegradable films, and smart manufacturing. Multi-layer co-extrusion blown film machines, especially 5-layer and 7-layer models, have become th Read More

Recently, good news comes from the packaging machinery industry. The three-layer co-extrusion blown film machines manufactured by SUNPLAS MACHINE have completed assembly, debugging, quality inspection and packaging. A large batch of equipment was fully loaded into 3 standard containers and successfu Read More

Read More

Read More

● Bubble instability usually comes from temperature, pressure, cooling, or material inconsistency. ● Die head condition and installation accuracy strongly affect bubble stability. ● Raw material quality and resin consistency can trigger repeated bubble fluctuation. ● Correct operating parameters are essential for steady film formation. ● Regular maintenance reduces unstable bubble problems and production waste. Read More

● A Blown Film Machine fault often starts with instability in melt, air, traction, or winding rather than one single defective part. ● Common defects such as haze, wrinkles, uneven thickness, blocking, and poor sealing usually have multiple interacting causes. ● A stable Blown Film Machine requires coordinated control of die temperature, air ring balance, bubble pressure, haul-off speed, and roll tension. ● Troubleshooting is more effective when operators verify material, temperature, pressure, cooling, and mechanical conditions step by step. ● Repeated faults on an older Film Blowing Machine may indicate the need for maintenance, process redesign, or machine upgrade. Read More

● A Blown Film Machine energy-saving upgrade can reduce electricity use, scrap, and maintenance cost together. ● Better temperature control, cooling performance, and drive efficiency improve both film quality and operating stability. ● Production cost in a Blown Film Machine line is strongly affected by material waste, downtime, and thickness variation. ● A modern Film Blowing Machine often delivers better long-term efficiency than an older line with repeated repairs. ● The right upgrade plan should match the film type, output target, and actual condition of the current line. Read More

● High pressure and low pressure Blown Film Machine systems are commonly linked to different polyethylene materials and film characteristics. ● A high pressure Blown Film Machine is often used for LDPE film, while a low pressure Blown Film Machine is commonly used for HDPE film. ● The right Blown Film Machine depends on product type, raw material plan, output target, and operating cost. ● Machine structure, cooling performance, and control precision all influence film quality and production stability. ● A properly matched Film Blowing Machine supports better efficiency, consistency, and long-term operation. Read More

● A Blown Film Machine produces tubular plastic film through extrusion, inflation, cooling, flattening, and winding. ● Stable film quality depends on balanced control of temperature, air pressure, screw speed, haul-off speed, and winding tension. ● Correct startup and shutdown procedures reduce waste and support smooth machine performance. ● Bubble stability and thickness uniformity are two major indicators in Blown Film Machine operation. ● A Film Blowing Machine can be used for packaging film, industrial liners, agricultural film, and consumer bag production. Read More