PP/HDPE Double Wall Computerized Corrugated Pipe Production Line and Corrugated Pipe Extrusion Line for Large Diameter Drainage Pipe Manufacturing

The PP/HDPE Double Wall Corrugated Pipe Production Line is engineered for manufacturing large-diameter hollow-wall steel-reinforced winding pipe. The resulting pipe combines high structural performance with economical material consumption, making it a practical replacement for traditional plastic, cement, and cast iron pipes in sewerage and drainage systems.

• High ring stiffness for reliable structural support.
• High burst intensity combined with low weight.
• Good creep deformation resistance for long-term stability.
• Excellent outer pressure resistance.
• Erosion resistance against acid, alkali, salt, and similar media.
• Production material cost saving.

The pipe is widely used for sewerage and drainage in urban infrastructure and is positioned to replace plastic pipe, cement pipe, cast iron pipe, and other conventional pipes. Its low assembly cost, easy operation, simple connection, and economical construction give it broad market prospects and strong potential.

The HDPE Large Diameter Hollow Wall Steel Reinforced Winding Pipe Production Line is designed with advanced technology. It includes a first single screw extruder for profiled T belts, a profiled T belt extrusion die, a vacuum calibration cooling platform, a haul-off, and a coiler; a second single screw extruder for HDPE plates; a third single screw extruder for melting glue material; a spiral forming unit; a cutting unit; and a stack unit.

The spiral forming unit adopts an advanced multi-axes transmission box featuring high transmission force and stable running performance. Its unique composite die-head design enables rotational molding after combined feed, while two sets of extruders extrude PE for the winding pipe. The unique winding process for pipe forming produces high-quality winding pipe. The glue extruder can be moved up and down and left and right. A PLC computer control system with touch screen interface enables automatic and reliable operation.

Saw cutting delivers the desired pipe length. An OMRON or MITSUBISHI PLC computer control system with touch screen interface enables automatic and reliable operation.

The control system offers super high speed and large storage capacity with multiple control points. Forming pipe extrusion, melting PE adhesive extrusion, winding, and cutting processes can be auto-tail controlled synchronously. Two extruders and the winding unit are separately controlled in tandem with two touch screens.

The line consists of two parts.

Part One — PE Pipe Production Line: Extrudes PE/PP profiled T belt. It includes the following equipment: SJ series single screw extruder, die head (outer mold and mandrel), calibration and cooling platform, haul-off, and coiler.

Part Two — Forming Machine for HDPE Double Flat Wall Steel Reinforced Winding Pipe: Produces qualified HDPE double flat wall steel reinforced winding pipe. It includes the following equipment: SJ series single screw extruder, die head, spiral forming unit, cutting unit, stack unit, and PLC control system with touch screen.

Qingdao Huashida Machinery Co., Ltd was established in 2003. Since its inception, Huashida has focused for 20 years on plastic polyurethane insulation pipe production lines, 3PE anti-corrosion pipe production lines, large diameter underground pipe production lines, and plastic pipe joints. The company places strong emphasis on research and development, collaborating closely with Beijing University of Chemical Technology, Qingdao University of Technology, and scientific research institutions. By absorbing advanced technology from home and abroad, and after 20 years of endeavor, Huashida now ranks among the top 3 manufacturers in the industry in China. Huashida machines have been well received in Saudi Arabia, Kazakhstan, Uzbekistan, the United Arab Emirates, Turkey, Russia, and other markets.