This advanced production line is designed for manufacturing HDPE spiral wound pipes-also known as Krah pipes, structural wall drainage pipes, or spiral interlock pipes. These pipes are increasingly replacing traditional cement and cast iron pipes in municipal sewerage and drainage systems, thanks to their high performance, durability, and cost-effective installation.

Urban sewerage and drainage systems

Infrastructure and civil engineering projects

Industrial wastewater discharge

Culverts and stormwater systems

Pipe Features

High ring stiffness & brunt intensity

Lightweight yet pressure-resistant

Excellent chemical resistance (acid, alkali, salt, etc.)

Creep deformation resistance

50-year service life

Eco-friendly and non-polluting

Key Features of the Machine

Energy-efficient extrusion with optimized screw design for low-temperature plasticization

Dual extrusion system for forming and adhesive bonding in spiral winding

Stable spiral forming unit with multi-axis transmission and rotational die-head for strong and uniform pipe wall construction

Automatic saw cutting for accurate pipe lengths

Fully automated PLC system with multi-point control and dual screen operation (pipe forming, adhesive extrusion, winding, and cutting)

Production Line Composition

1. PE Pipe Extrusion Line

Vacuum loader

Hopper dryer

High-efficiency single screw extruder & die-head mould

Vacuum calibration tank

Spray cooling tank

Hauling machine

2. Spiral Forming Line

High-efficiency single screw extruder & die-head

Spiral forming unit

Glue extruder (adjustable in 4 directions)

Saw cutting unit

Pipe stacker

PLC Control System (OMRON/MITSUBISHI with touch screen interface)

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 -

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.