Product Description

Vacuum-calibrated polyurethane pre-insulated pipes deliver superior thermal insulation and long service life. Featuring a steel carrier pipe, PU insulation layer, and HDPE protective jacket, the system ensures excellent strength, corrosion resistance, and energy efficiency. Produced using advanced vacuum calibration technology, the HDPE jacket pipes offer high dimensional accuracy and consistent quality, making them an ideal choice for district heating and cooling pipeline systems.

The vacuum calibrating and insulation pipe production line is currently the most advanced and popular series of anti-corrosion and insulation vacuum sizing pipe production lines internationally. The "Insulation Pipe Production Line" of Qingdao Huashida Machinery Co., Ltd. has been recognized as a First (Set) Technical Equipment in Shandong Province.

Product Parameters

 Technical Highlights

High-performance extruder

Strong, wear- and corrosion-resistant with excellent plasticizing capability. Precision temperature control system ensures consistent material fusion. Our proprietary single-screw extruder is optimized for polyethylene (PE) materials.

Vacuum Calibration

Patented vacuum calibration system replaces traditional internal pressure methods. This ensures high dimensional accuracy and consistent quality according to international standards.

PLC + DCL software with intuitive HMI for easy operation. Fully integrated control system provides real-time process monitoring for the entire line.

Efficient cutting & Clean production

Planetary cutting unit with segmented head for clean, vertical cuts, no secondary processing. Integrated sawdust collection system keeps the workspace tidy.

Production Capabilities

Diameter range covers 110mm - 2200mm (customizable). Output capacity reaches 250-1600 kg/h depending on the material.

Features & Advantages

High degree of automation

Small dimension suitable for various venues. The high degree of automation means the line can be operated by one person, saving labor costs.

Superior Quality

The pipe wall is average and smooth. One-time molding ensures no need to trim the edge, leading to a high raw material utilization rate and no waste of raw material.

Reliable Performance

High-efficiency extruder gives larger output and stable performance. The equipment is built for a long service life with low maintenance costs.

 Production Line Composition

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

1 set PLC

Company Profile

Qingdao Huashida Machinery Co., LTD., founded in 2003, is a global developer, manufacturer and solution provider of plastic extrusion equipment. Over 20 years of expertise in plastic pipe machines, municipal pipe machines, and pipe insulation & anticorrosion solutions.

70% of our customers come from overseas countries such as Europe, America, the Middle East and Southeast Asia. We have been working with more than 400 overseas customers and exporting our products to Kazakhstan, Uzbekistan, Iran, Turkey, Russia, Nigeria and other countries.

Welcome to our factory to discuss cooperation!