Extruders and Extrusion Lines

Founded in 1985, our company has built decades of experience in the design and manufacture of straw production and packaging machinery. As the global single-use packaging industry embraces a new era of sustainability. However, transforming these sustainable materials into durable, food-safe straws requires more than innovative materials. It requires engineering expertise, manufacturing precision, and years of technological innovation. 

Resin prices over recent years have been a rollercoaster and August 2026 is proving no exception. With recent geopolitical tensions in the Middle East triggering fresh upswings in global polymer pricing, quotes valid today may expire tomorrow. A formulation that maintained healthy margins in Q1 can erode profitability by Q3. A production line reliant heavily on virgin resin ties its financial stability directly to crude oil shocks, shipping volatility, and vendor quotas, factors entirely outside a film manufacturer's control.

High-density polyethylene (HDPE) pipes play a vital role in modern infrastructure, serving applications from water and gas supply to cable protection and irrigation.At the heart of every high-quality HDPE pipe lies a critical technology: the HDPE pipe extrusion line, also known as an HDPE pipe production line.This advanced system uses a high-performance HDPE pipe extrusion machine to transform raw HDPE pellets into durable, precisely shaped pipes ready for demanding applications.

PE breathable film is a polyethylene film with micron-scale pores throughout: water vapor passes through, while liquid water is held back under the designed pressure conditions. In baby diapers and sanitary napkins, a liquid-barrier outer layer that can still release moisture vapor, thanks to its microporous structure. Chi Chang’s listed applications also include masks and surgical gowns; actual use depends on the product’s construction and regulatory requirements.

In blown film production, thickness variation is often where hidden cost begins. It is not only a number on a quality report. It affects resin consumption, winding quality, printing registration, lamination stability and the customer's confidence in every roll delivered. For producers of food packaging, composite film, printing film and shrink film, unstable cross-direction thickness can quickly turn into wasted material, longer adjustment time and avoidable production cost.

The global construction industry is undergoing a silent but massive shift. For centuries, wood was the undisputed king of door frames. Over the past decade, however, we have witnessed a decisive migration toward PVC and WPC (Wood Plastic Composite) materials. This isn't just a market trend — it's a structural shift driven by hard performance requirements: moisture resistance, termite immunity, and the growing pressure to build sustainably.

The intelligent automatic air ring achieves ±3‰ thickness accuracy, reduces the scrap rate by more than 3%, and increases production capacity by 10%–15%. Soaring energy costs and strict recycling requirements under the EU PPWR framework are reshaping the European packaging industry, driving global demand for more energy-efficient and material-saving blown film production systems. Converters are increasingly turning to recyclable, downsized, multi-layer structures to lower their carbon footprint and stabilize operating costs.

Search the two most-discussed packaging regulations of the past two years — the EU's PPWR and California's SB 54 — and you will not find the words "bubble film." The named items are tea bags, fresh-produce labels, very lightweight carrier bags; the headlines belong to compostable materials and recycling-rate targets. A protective-packaging manufacturer might reasonably exhale.