English

Bahasa Indonesia

Español

Русский

العربية

Français

हिन्दी

Türkçe

فارسی

اردو

Home Product Plastic Pipe Making Machine Co Extrusion Three Layer PVC Pipe Production Line

Co Extrusion Three Layer PVC Pipe Production Line

PVC co extrusion three layer production line is an advanced extrusion solution designed for the efficient production of high-performance multi-layer PVC pipes.

Adopts two or more conical twin-screw extruders to implement co-extruded three-layer PVC pipes, the sandwich layer is high-calcium PVC or PVC foam raw material.
By combining extrusion technology, PVC pipe production line ensures excellent mechanical strength, material optimization, and consistent pipe quality, making it ideal for water supply, drainage, and industrial piping applications.

Specifications
Model

SJ65/132 SJ80/156 SJ92/188
Pipe Diameter

75 - 250 mm /200 - 450 mm/315-630mm
Mian Motor

22KW/37KW/75KW/110KW
Max Speed

5m/min 3.5m/min 1.5m/min

Inquiry

Application Description Installation Video Features Specifications Customer Case FAQ

Application

Description

EANS Co-extrusion three layer PVC pipe production line, also known as a PVC co extrusion three layer pipe production line, it is an advanced extrusion system designed for the efficient production of high-quality multi-layer PVC pipes. Three-layer composite pipes made primarily of PVC resin, with a foamed core layer that effectively reduces noise in drainage systems.
PVC multi-layer composite pipes are suitable for gravity-fed domestic drainage systems, with a continuous discharge temperature not exceeding 40℃. By using core-adding technology to increase the pipe wall thickness, raw material savings and cost control are achieved while maintaining load-bearing capacity.

PVC three layer composite pipe production process:

1. Extruder: Three layer PVC pipe co extrusion line adopts two or more SJZ series conical twin screw extruders. Utilizing a composite co-extrusion molding process, it features a core-layer foam structure: two inner and outer rigid PVC layers, with a low-density foam layer in the middle. This three-layer design maintains the pipe's strength while the foam layer buffers water flow impact, effectively reducing drainage noise.

2. Screw and barrel: ultra-wear-resistant alloy screws and barrels, ensuring uniform feeding and preventing powder agglomeration.

3. Mold: PVC composite pipe mold is optimized with chrome-plated and highly polished internal flow channels, making it wear-resistant and corrosion-resistant.

4. Vacuum Cooling Tank: Multi-stage vacuum cooling platform enables continuous cooling of pipe materials.

5. Hauling off: The speed control is extremely precise, and the traction speed is automatically synchronized with the upstream extruder main unit to ensure uniform pipe wall thickness and consistent outer diameter.

6. Cutter: uses a rotary clamping device to adapt to different pipe diameters, eliminating the hassle of frequent clamp changes. It is equipped with a new adjustable floating chamfering mechanism; the chamfering size can be adjusted according to the pipe diameter and wall thickness, and cutting and chamfering can be completed in one step.

Two or More Extruders

Three-Layer Co-Extrusion

Pipe Extrusion Mold

Three Layer PVC Pipe

Three Layer PVC Pipe Production Line Video

PVC Composite Pipe Production Line Video

Key Points About PVC Pipe Production

● According to your PVC pipe factory scale, we will make the related production plan. we will suggest the factory matters, including: installation power and consumption power, water , air of the multilayer three-layer PVC pipe production line

● Extrusion temperature: Temperature control is a crucial factor in extrusion operations. Temperatures that are too low or too high result in poor plasticization, dull pipe appearance, and poor mechanical properties. Eans PVC pipe production uses Omron temperature controller for better temperature monitoring.

● Hauling off speed: During normal production, the traction speed should be about 1% to 10% faster than the extrusion speed of the pipe, and the material's melting and plasticizing time after extrusion should be reasonably controlled.

● Formulas play a crucial role in the PVC pipe production line, Eans machines customize formulas according to different countries.

Features of EANS Three Layer PVC Pipe Extrusion Machine

Three-layer co-extrusion technology
Independent extrusion control: Siemens PLC controlling
Famous electricity brands: ABB, Siemens, etc.
High output conical twin-screw extruder
Energy-saving motor system
Automatic temperature control
Customized pipe diameter solutions

Get a quote now

Specifications

Parameters of Three Layer PVC Pipe Production Line

Pipe Diameter Range	Type	Extruder Model	Max Output	Max Speed
75 - 250 mm	PVC250 Three Layer	SJ65/132 + SJ55/120	300-400 kg/h	5 m/min
200 - 450 mm	PVC450 Three Layer	SJ80/156 + SJ65/132	400-600 kg/h	3.5 m/min
315 - 630 mm	PVC630 Three Layer	SJ92/188 + SJ65/132	740-900 kg/h	1.5 m/min

Customer Case

Why Chose EANS PVC Three Layer Co-Extrusion Pipe Production Line

●Precision Technology: EANS has extensive experience in PVC pipe extrusion technology. Our Three Layer PVC Pipe Production Line is engineered based on real production data and customer feedback, ensuring stable co-extrusion, strong layer bonding, and consistent pipe performance.

●Stable Performance: Equipped with high-performance twin screw extruders and precision co-extrusion die heads, the production line delivers continuous, stable output with minimal downtime, even during long-term operation.

●Customized Configuration: EANS provides flexible and customized solutions based on pipe diameter, output capacity, material formulation, and local production standards, ensuring the PVC pipe three layer co extrusion line perfectly matches customer requirements.

●After-sale Service: EANS provides a complete turnkey solution to support customers throughout the entire project lifecycle. From project consultation and machine layout design to installation, commissioning, operator training, and after-sales service.

Three Layer PVC Pipe Production Line FAQ

What is a three layer PVC pipe?

A three-layer PVC pipe consists of inner, middle, and outer PVC layers produced through co-extrusion technology.

What is PVC three layer pipe (PVC-U)?

PVC three layer composite pipe (also called PVC-U pipe) is mainly made of polyvinyl chloride resin. The pipe is composite of the co-extrusion molding process, and features a core foam structure: two inner and outer rigid PVC layers, with a low-density foam layer in the middle. This three-layer design maintains the pipe's strength while the foam layer buffers water flow impact, effectively reducing drainage noise. Its core layer utilizes foaming technology, which effectively reduces noise in the drainage system.

What is PVC three layer pipe production line?

PVC three-layer composite pipe production line adopts two or more conical twin screw extruders, the inner and out layer is PVC materials, the inner layers are high-calcium PVC or foam PVC materials. It is an advanced extrusion system. This structure improves pipe strength, surface quality, and material cost efficiency compared to single-layer pipes.

What are the advantages of a PVC pipe Three Layer Co Extrusion Line?

The main advantages include reduced raw material cost, improved mechanical performance, precise layer thickness control, and higher production efficiency. By using recycled or filled materials in the middle layer, manufacturers can significantly lower production costs without sacrificing pipe quality.

What raw materials be used in PVC three layer pipe production?

The PVC pipe production line supports PVC, UPVC, and optional CPVC formulations. Typically, virgin PVC is used for the inner and outer layers, while recycled or modified materials can be used in the middle layer to optimize cost.

Can PVC pipe production line be customized?

EANS provides customized solutions for the Three Layer PVC Pipe Production Line, including pipe diameter range, output capacity, material formulation compatibility, and auxiliary equipment configuration, ensuring the line fits specific production requirements.

What materials can be used for the middle layer?

The middle layer can use PVC foam or a high-calcium PVC compound to reduce production costs.

What diameter pipes can this machine produce?

The production diameter range can be customized according to customer requirements. EANS PVC three layer pipe co extrusion line is suitable for 16 - 168 mm, 50 - 200 mm, 315 - 400 mm, 450 - 630 mm, etc.

Why choose a three layer PVC pipe extrusion line?

It improves pipe strength, reduces raw material cost, and provides stable production performance.

What after-sales support does EANS provide?

EANS offers complete after-sales support, including installation, commissioning, operator training, technical guidance, and long-term spare parts supply, ensuring stable operation of the PVC pipe three layer co extrusion line.