800mm HDPE pipe production line

Description:

This HDPE pipe production line is a fully automatic set of equipment that integrates raw material mixing, melt extrusion, vacuum sizing, cooling forming, servo traction, online cutting, and finished product winding/stacking. It is designed for efficient and high-quality production of high-density polyethylene (HDPE) pipes and is suitable for the manufacturing of full specification pipes ranging from 20mm to 1200mm. It can produce various types of HDPE pipes such as water supply pipes, gas pipes, sewage pipes, and steel reinforced spiral corrugated pipes.
Based on more than 20 years of experience in the research and development of extrusion equipment, the core configuration of the production line is an efficient single/twin screw extruder. The length to diameter ratio and groove structure of the screw are optimized according to the viscoelastic characteristics of HDPE materials, and a precise temperature control system is used to achieve low-temperature and efficient plasticization of materials, avoid high-temperature degradation, and ensure the toughness and pressure resistance of pipes. The host adopts variable frequency speed regulation technology, with stable and controllable extrusion volume, and a maximum extrusion efficiency of up to 1200kg/h, meeting the needs of large-scale production.
The production line adopts a composite shaping process of internal pressure sizing and spray cooling. Large diameter pipes are matched with multiple sets of crawler tractors, while small diameter pipes are adapted with roller traction and automatic winding devices. Internal pressure sizing ensures high roundness and accurate dimensional accuracy of the pipe by precisely controlling the air pressure inside the pipe, and the wall thickness tolerance can be controlled within ± 0.2mm; The segmented spray cooling system adopts a gradient cooling design, effectively eliminating internal stress in the pipes and avoiding deformation and cracking. The finished pipe ring stiffness can reach SN8-SN16, far exceeding the national standard requirements.
The entire line is equipped with a PLC intelligent integrated control system, which supports real-time monitoring, storage, and one click calling of production parameters (temperature, pressure, speed, cutting length), preset multi specification pipe production formulas, and reduces production time to within 20 minutes. Simultaneously equipped with quality monitoring modules such as online wall thickness detection and laser diameter measurement, which can automatically remove non-conforming products; The fault self diagnosis and shutdown protection function significantly reduces the cost of manual intervention and improves the safety of equipment operation.
This production line is compatible with the processing needs of HDPE pure materials, modified materials and recycled materials. The produced pipes have the advantages of corrosion resistance, aging resistance, good flexibility, convenient connection, and comply with GB/T 13663, ISO 4427 and other domestic and foreign standards. They are widely used in municipal water supply and drainage, gas transmission, agricultural irrigation, mine drainage and other fields. The equipment is exported to dozens of countries and regions around the world, and is trusted by customers at home and abroad for its stable performance and comprehensive after-sales service.

Applications:

The core application of the 800mm HDPE pipe production line revolves around the manufacturing of large-diameter HDPE pipes. These pipes, with their characteristics of corrosion resistance, flexibility, impact resistance, environmental protection, and recyclability, are widely suitable for various fields such as municipal infrastructure, water conservancy engineering, and energy transportation. The specific application scenarios are as follows:

Municipal water supply and drainage engineering

Urban water supply main pipe: 800mm large-diameter HDPE pipe has a large flow rate, smooth inner wall and is not easy to scale, which can reduce water transmission resistance. It is suitable for laying the main line of urban new district water supply network and old pipe network renovation, ensuring stable water supply for residents and industries.
Rainwater and sewage diversion and drainage network: can be used as a main pipe for urban rainwater discharge, quickly diverting accumulated water during flood season; It can also be used for sewage collection main pipes, and its acid and alkali corrosion resistance can adapt to chemical substances in sewage, avoiding pipeline leakage and pollution of soil and groundwater.

Irrigation and Water Transfer Engineering

Renovation of main irrigation channels in farmland: replacing traditional concrete channels, solving the problems of easy cracking and high maintenance costs of concrete pipes, used for water source transportation in large-scale irrigation areas, and achieving long-distance and low loss farmland irrigation.
Cross regional water diversion branch line: In large-scale water diversion projects, as a branch pipeline transporting water sources, its strong flexibility can adapt to complex terrain and resist the risk of pipeline deformation caused by geological settlement.

Industrial fluid transportation

Chemical waste liquid transportation: suitable for the transportation of corrosive waste liquids and acid-base solutions in chemical parks. HDPE material has strong chemical stability and will not react with the medium, ensuring transportation safety.
Mining slurry transportation: It can transport solid-liquid mixed fluids such as mine tailings slurry and slag water. Its wear-resistant and impact resistant properties extend the service life of pipelines and reduce maintenance costs of mining transportation systems.

Gas transmission (special grade HDPE pipe)

The 800mm pipe produced with special grade HDPE raw materials for gas can be used as the main pipe for urban medium pressure gas transmission, with good air tightness, anti-aging, decades of underground use, convenient construction, and suitable for the expansion of urban gas network.
Desalination of seawater and coastal engineering
The main pipeline for freshwater transportation used in seawater desalination projects, as well as the discharge pipeline in coastal areas, is resistant to seawater corrosion and suitable for high salt spray and high humidity coastal environments. At the same time, it is resistant to ultraviolet aging and can be used in some shallow buried or overhead laying scenarios.

Specifications:

Competitive Advantage:

High production capacity and stable molding： By using length to diameter ratio screws and spiral die heads, optimizing the distribution of flow channels and melt, and combining with melt cooling and vacuum closed-loop control, the problem of sagging of large-diameter pipes is effectively suppressed, ensuring uniform wall thickness and dimensional stability; Multi layer co extrusion structure can achieve functional layering (such as anti-static and anti-corrosion), balancing performance and cost; The online measurement and weight control system provides real-time correction, significantly reducing the scrap rate and suitable for stable delivery in large quantities.
Low energy consumption and yield control： Low temperature extrusion process reduces material degradation, efficient driving and intelligent temperature control (± 1 ℃) improve energy utilization efficiency, with a common energy-saving range of 15% -35% in the industry; Rice weight closed-loop and chip free cutting reduce the loss of cutting heads, tails, and corner materials, shorten preheating and start-up time, further reduce unit costs, and enhance profitability.
Modularization and rapid changeover: The mold quick change design is compatible with the entire production line, and can cover multiple pipe diameters of 800mm and above on the same production line. It supports single-layer/multi-layer co extrusion switching and is suitable for mixed production of multiple specification orders; Short downtime for changeover, high capacity utilization, and enhanced market responsiveness.
Automation and Quality Traceability： The entire line adopts PLC/SCADA linkage, servo synchronous control of traction, cutting, stacking and other links, reducing manual intervention; Remote monitoring and warning functions can quickly detect and handle anomalies, reducing downtime; Key parameters are fully recorded and traced to meet quality system and project audit requirements, reducing compliance risks.
Full lifecycle cost advantage： Equipment design emphasizes durability and ease of maintenance, coupled with localized spare parts libraries and remote diagnostic services, which can quickly solve faults and shorten downtime; After long-term operation, the operation and maintenance costs and downtime losses are significantly reduced, and the investment return cycle is shorter.
Compliance and scenario adaptation： The pipes produced by the production line can meet the national/industry standard requirements in the fields of water supply, gas, sewage, etc., and have excellent resistance to environmental stress cracking, corrosion, and thermal fusion performance. They can be directly used for key projects such as municipal main pipes, water conservancy water diversion, and garbage leachate treatment, ensuring smooth project acceptance and long-term reliable operation.