Extruder Vacuum Sizing Pipe Equipment

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

• 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 keeping stable operation.
• It delivers uniform and smooth pipe walls, reduces raw material consumption, and supports adjustable wall thickness.
• The pipe realizes complete one-pass forming with no edge trimming required.
• Highly automated, this production line requires only one operator to help cut labor costs.

The single screw is equipped with a barrier mixing head and paired with a newly designed slotted barrel. This structure provides excellent plasticization, high throughput and stable 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 discharge 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 driven by frequency-controlled AC motors to adapt to various extrusion speeds. Equipped with an automatic length counter, it enables cutting at preset lengths.

This cutter adopts blade punching technology for 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. focuses on 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 gained wide recognition from customers worldwide. Many of our equipment designs are patent-protected, and we are certified to ISO 9001, ISO 14001 environmental management and ISO 45001 occupational health and safety standards.

To date, 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 boasts a tidy layout, intelligent operation and high efficiency, cutting consumption of energy, raw materials and labor. Optimized components guarantee uniform wall thickness as well as improved shrinkage performance, tensile strength and elongation at break. Our products satisfy various pipeline anti-corrosion requirements, and our professional after-sales team provides on-site service and online video training for rapid troubleshooting.