PLC Insulation Pipe Extrusion Line

Huashida’s high-efficiency extrusion line produces black HDPE outer jackets for PU foam pre-insulated pipes. With a compact layout and easy operation, it delivers fast production speed and low energy consumption. Fitted with an automatic control system, the line ensures stable, continuous long-run operation.

• 1 set — Vacuum loader
• 1 set — Hopper dryer
• 1 set — High-efficiency single screw extruder
• 1 set — Vacuum calibration table
• 1 set — Water spraying tank
• 1 set — Hauling machine
• 1 set — Cutting machine
• 1 set — Discharging frame

• This high-efficiency extruder boosts production output while maintaining stable operation.
• It produces uniform, smooth pipe walls to reduce raw material consumption and supports adjustable wall thickness.
• The pipe achieves full one-pass forming with no edge trimming required.
• Highly automated, this production line requires only one operator, helping cut labor costs.

The single screw comes with a barrier mixing head and matches a newly designed slotted barrel. This structure delivers superior plasticization, high throughput and consistent running performance.

The vacuum calibration tank consists of a frame, stainless steel tank body, vacuum unit, spray cooling system and position adjuster. The vacuum pump evacuates air from the sealed tank, pressing the freshly extruded pipe tightly against the sizing copper sleeve to fix its outer diameter. Spray nozzles spray cooling water from all directions for rapid surface cooling of the pipe.

The haul-off machine consists of a drive unit, hauling tracks, clamping mechanism, adjustment system, side plates and base frame. Its tracks are powered by frequency-controlled AC motors to adapt to different extrusion speeds. Equipped with an automatic length counter, it enables cutting at preset lengths.

This cutter adopts blade punching technology to achieve dust-free cutting. It consists of a cutting assembly, clamping assembly, synchronous motion mechanism and frame.

It features a stainless steel tabletop and adopts pneumatic turnover for automatic discharging.

Founded in 2003, Qingdao Huashida Machinery Co., Ltd. specializes in the R&D and manufacturing of pipeline anti-corrosion equipment and supporting raw materials. As a leading domestic manufacturer of heat-shrinkable sleeves and matching machinery, Huashida has won wide recognition from customers worldwide. Many of our equipment designs are patent-protected, and we have obtained ISO 9001, ISO 14001 environmental management and ISO 45001 occupational health and safety certifications.

Up to now, over 500 production lines have been exported to Russia, Kazakhstan, Belarus, Egypt, Iran, Indonesia and other countries. Continuously optimized based on practical production experience, Huashida’s heat-shrinkable sleeve equipment has been upgraded to the fourth generation. The complete production line features a tidy layout, intelligent operation and high efficiency, reducing the consumption of energy, raw materials and labor. Optimized components ensure uniform wall thickness as well as improved shrinkage property, tensile strength and elongation at break. Our products can meet various pipeline anti-corrosion requirements, and our professional after-sales team provides on-site service and online video training for quick troubleshooting.