This advanced production line is specially designed for the efficient manufacturing of double-wall corrugated drainage pipes, widely used in municipal sewage systems, stormwater drainage, highway engineering, agricultural irrigation, and underground cable protection.

Equipped with a high-performance extrusion system, the line ensures stable output, uniform wall thickness, and excellent pipe ring stiffness. The precision corrugator system forms a smooth inner wall and a reinforced corrugated outer wall, providing superior strength, impact resistance, and long service life.

The production line features intelligent PLC control, automatic temperature regulation, synchronized forming technology, and high-speed cooling systems to guarantee continuous and reliable operation. It supports a wide range of pipe diameters and materials such as HDPE and PP, meeting various international standards.

With energy-saving design, easy maintenance, and high production efficiency, this line is an ideal solution for large-scale drainage pipe manufacturing projects.

Our company has launched the fourth-generation double-wall corrugated pipe, featuring:

Circumferential Continuous Sealed Pressure Water-Cooling Molding Technology

Fully continuous, uninterrupted water cooling
Fixed water-cooling pipeline connection-no plugging/unplugging is required when changing molds
Cooling section length: 6.3 meters
Higher efficiency with lower energy consumption
Launch year: 2013

Faster Production Speed

The mold undergoes continuous circumferential pressure water cooling throughout its full operation path, resulting in superior cooling performance. Output can reach more than three times that of air-cooling and traditional water-cooling systems.

Lower Energy Consumption

The extrusion system uses a buffered forced-feeding section, significantly reducing the power consumption of the main drive motor by 30%.
The large L/D ratio screw (36:1) ensures excellent plasticizing performance and superior material adaptability.
Optimized die flow channel design enables low-temperature, low-pressure pipe extrusion.

Easier Operation

No need to raise or lower the forming machine platform. Mold replacement is quick and convenient.

More Stable and Durable Operation

Smoother movement of molds and water-cooling circuit
Fixed water-cooling pipe connection eliminates leakage caused by frequent plugging/unplugging, preventing equipment wear and extending service life
Shorter die flow path and lower pressure reduce wear, extending the lifespan of both the screw and die

Features of the PE/PP Double-Wall Corrugated Pipe Production Line

The DWCP series double-wall corrugated pipe production line is developed by Qingdao Huashida Machinery Co., Ltd. based on market demand and international technological trends, integrating and enhancing the most advanced technologies from abroad. This fourth-generation high-speed water-cooling line is suitable for the high-speed extrusion of PE and PP materials.
The line adopts a dual-extruder co-extrusion forming process and is equipped with, and B&R professional control systems for double-wall corrugated pipe production. It features a high degree of automation and stable operation.
For even greater energy savings, customers may opt for original ABB inverter motors and frequency converters.

Company Background

Qingdao Huashida Machinery Co., Ltd. is a high-tech enterprise founded in 2003, specializing in R&D, manufacturing, sales, and service of advanced pipeline production equipment. Headquartered in Huashida Industrial Park, Chengyang District, Qingdao, China, the company covers a facility area of approximately 4,000 m².
Huashida is a leading manufacturer of pipeline machinery, focusing on:
Pre-insulated pipe extrusion lines (HDPE/PU jacket)
3LPE steel-pipe anti-corrosion coating equipment
Hollow-wall spiral pipe production lines
PE / PP sheet and board extrusion lines
Rubber-foam insulation tube / sheet lines
Heat-shrinkable sleeves, electrofusion sleeves, portable plastic welders
These products are broadly applied in municipal heating networks, water supply & drainage systems, oil & gas pipelines, and other infrastructure fields

Technical Strength & Innovation

Approved as a technology-based enterprise by the Shandong Provincial Department of Science and Technology.
Holds independent intellectual property rights, with many patents covering core equipment.
Deep cooperation with top academic institutions including Tsinghua University, Beijing University of Chemical Technology, Qingdao University of Science & Technology, and others.
Huashida maintains rigorous quality control:
Certified to ISO 9001 (quality management) and ISO 14001 (environmental management) standards.
Products comply with international safety and performance requirements.

Global Reach

The company's equipment has been exported to over 20 countries and regions, including Russia, Iran, Turkey, UAE, Kazakhstan, Ukraine, and more.
Serves major clients in the oil & gas, municipal infrastructure, and pipeline industries.
Huashida actively participates in major industry exhibitions around the world, strengthening global partnerships and showcasing our latest pipeline production technologies.

1. company profile

Qingdao Huashida Machinery Co., Ltd. is located in Qingdao High & New Technology Industrial Area- Qingdao Huashida industrial Park, covers an area of about 4000 square meters. We have tens of years experience in plastic pipe, sheet, and board extrusion lines, and pipe joints and welding tools such as heat shrinkable sleeve, Electro fusion sleeve etc.

2. main products

Our main products include as following,HDPE PU pre-insulation Jacket Pipe extrusion line,3PE steel pipe anticorrosion&coating machinery,Rubber&plastic foam flexible insulation tube/sheet production line,HDPE water supplying pipe extrusion line,PE PP sheet board extrusion line,Heat shrinkable sleeve production line,Hollow wall spiral pipe production line,Plastic welding rod extrusion line,Radiation cross-linked PE heat shrinkable sleeve,Electro fusion tape,Portable extrusion welder.

Our machines make products what are widely used as jacket pipe of PU foam insulation pipe in municipal heating pipe system; Municipal water supplying and drainage pipeline; Oil and gas pipeline; Pipe joints of plastic drainage water pipes, PU foam insulation pipelines, 2PE/3PE oil and gas pipelines;
Besides manufacturing machines, we also make Heat shrinkable sleeves and electro fusion sleeves and plastic welders, which are widely used as pipe joints and sealings of plastic drainage water pipes, PU foam insulation pipelines, 2PE/3PE oil and gas pipelines;

4. Our certificates and Patents

5. Global market
Our purpose is to supply highest cost-effective products and the most suitable solutions to our clients, as well as intimate help and service, on this basis we reach a win-win situation.
For over 14years We have exported to many foreign countries, such as Russia, Iran, Turkey, U. A. E, Sudan, Ukraine, Uzbekistan, Azerbaijan, South Asia, Poland etc.

6. Core Team

The guarantee period is 12 months from the date of installing, but no more than 14 months from the date of delivery. After this period we are obliged to provide with lifelong service at the expense of Buyer.During the warranty period we are responsible to provide trouble shootings and help the customer to solve the problems, provide spare parts which are broken, except breakings caused by the Buyer.We will provide the technical service train the workers from the buyers for free.We can also send technicians to the buyer's companies abroad for help installation and testing the lines. But the buyer shall pay for the round trip tickets, accommodation, transportation, medicine treatment and insurance of the technicians in foreign countries and some salary accordingly.