Our production line is capable of producing large plastic pipes ranging from 200mm to 3000mm in diameter. These HDPE spiral pipes are connected using specialized fittings (electric fusion sleeves, heat shrink sleeves), ensuring convenient and economical construction.

High Ring Stiffness: Ensures excellent resistance to external pressure and soil deformation.

High Impact Strength & Low Weight: Combines outstanding impact performance with lighter self-weight, simplifying transportation and installation.

Good Creep Deformation Resistance: Maintains shape under long-term pressure, guaranteeing stable and durable pipeline systems.

Excellent Outer Pressure Resistance: Capable of withstanding high external loads and soil pressure.

Strong Erosion Resistance: Offers superb resistance to various chemical media, including acids, alkalis, and salts.

Ultra-Long Service Life: Designed for an approximate 50-year lifespan, significantly reducing maintenance costs.

Given its superior performance, HDPE structured wall pipe is widely used in various critical areas:

Storm Water Management: Including storm water attenuation, runoff control, and drainage pipelines.

Sewerage Pipelines: For urban and industrial wastewater discharge systems.

Drainage Pipelines: For various drainage projects.

Culverts: Used for passages under roads and railways.

Pipe Rehabilitations: For relining existing aging pipelines.

Landfill Drainage/Leachate Collection: Ensuring environmental compliance.

Mine Drainage: Designed for complex mining environments.

HDPE Manholes/Manhole Drops: Providing complete solutions.

Floats: For applications in water engineering.

Irrigation: Agricultural and landscape irrigation systems.

Technical Process Flow

Raw materials → Mixing → Vacuum feeding → Material drying → Single screw extrusion → Calibration → Spray cooling → traction → Single screw glue extrusion → Winding and forming → Water cooling → Cutter → Pipe bracket → Inspecting & packing.

Qingdao Huashida Machinery Co., Ltd. is a specialized manufacturer engaged in the development and production of plastic pipe machinery, municipal pipe equipment, pipe insulation and anti-corrosion systems, as well as pipe jointing and anti-corrosion materials.

Our main product lines include:

HDPE Jacket Pipe Production Line for Pre-insulated Pipes (Diameter: 110-2000mm)

Rigid Pre-insulated Pipe Production Line

Flexible PERT Pre-insulated Pipe Production Line

Steel Pipe Anti-corrosion Coating Line for FBE, 2LPE, and 3LPE coatings

Steel Pipe Surface Derusting (Shot Blasting) Line

PE Pressure Pipe / Water and Gas Supply Pipe Extrusion Line

PP/PE Plastic Sheet, Board, and Geomembrane Production Line

NBR/PVC Thermal Insulation Tube and Sheet Production Line

Pipeline Anti-corrosion Materials & Tools, including:

○Heat Shrink Joint Coating Sleeves

○Electrofusion Weldable Joint Sleeves

○Portable Plastic Welding Guns (Extruders)

○ PE/PP Welding Rods

- client -

- packaging -

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.