20-63mm Four layers PPR pipe production line

Product General Information:

Commercial Terms of Products:

Description:

The PPR multi-layer co extruded pipe production line is an integrated multi unit, automated continuous operation equipment, mainly used for producing ABA fiberglass reinforcement. It has the characteristics of high efficiency, stability, precise thickness control and performance enhancement, and is suitable for home decoration, engineering water supply and drainage and other scenarios.

1、 Core constituent units

Core configuration and functions of the unit

The main extruder of the extrusion system (single screw/conical twin-screw, suitable for PPR plasticization)+1-2 co extrusion machines (responsible for reinforcing/bonding layers), equipped with vacuum feeding and drying machines, to achieve precise transportation and plasticization of raw materials

Co extrusion die head spiral diversion/spiral stacking multi-layer die head, uniform flow channel, supports independent adjustment of each layer thickness, compatible with ABA, PPR-AL-PPR and other structures, optional static mixing to improve plasticization uniformity

Multi stage vacuum sizing box and spray cooling tank for precise temperature control/water level/vacuum degree in the sizing cooling system. Double water tanks are commonly used in series to gradually cool large-diameter pipes, avoiding deformation and brittle cracking

Traction cutting multi claw traction machine (2 claws)+shaftless cutting machine, synchronized speed matching, high cutting accuracy, smooth incision

Electric control and auxiliary PLC + color touch screen, real-time monitoring of temperature, pressure, speed and other parameters; Including coding machine, flipping rack/stacker, supporting data traceability and automatic material receiving

2、 Typical process flow

Raw material preparation: PPR pellets + reinforcement material (glass fiber/aluminum strip)/masterbatch → mixing → vacuum feeding → drying (dehumidification and anti bubble).

Multi layer co extrusion: The main/co extrusion machine plasticizes the corresponding materials separately, and through the coaxial composite extrusion of multi-layer die heads, a predetermined layer structure is formed.

Calibration cooling: The vacuum calibration box adsorbs the pipe to the standard outer diameter, and the spray groove is used for graded cooling and shaping to avoid internal stress and deformation.

Traction cutting: The tractor pulls at a constant speed, the chip free cutting machine cuts at a fixed length, and the inkjet printer marks the specifications/batch number.

Finished product sorting: automatic stacking by stacker/flipping rack, and storage after quality inspection.

3、 Key technical features

Multi layer composite reinforcement: ABA glass fiber reinforced type can reduce the coefficient of linear expansion, reduce visible hanging, and save 10% -15% of raw materials; PPR-AL-PPR type enhances rigidity, temperature and pressure resistance, and superior oxygen barrier performance.

Accurate thickness control and stability: The mold head is linked with the PLC, and the thickness deviation of each layer is ≤± 5%. The entire line speed is synchronized to ensure consistency in batch production.

Efficient compatibility: After replacing the mold head and screw, PE, PE-RT, PEX and other pipes can be produced, suitable for pipe diameters of 20-160mm, with a maximum line speed of 18m/min.

Intelligent control: full process parameter traceability, fault warning, reducing manual intervention, and improving production stability.

4、 Common product types and specifications

Mainstream structure: ABA fiberglass reinforced PPR pipe, PPR-AL-PPR aluminum-plastic composite pipe (five layers).

Pipe diameter range: commonly used for home decoration 20-63mm

Pressure rating: S5 (PN10), S4 (PN12.5), S3.2 (PN16), S2.5 (PN20), suitable for cold and hot water and low-pressure fluid transportation.

5、 Application scenarios and advantages

Application: Building cold and hot water pipes, direct drinking water pipes, heating pipes, especially suitable for open installation, long-distance laying, and scenarios with requirements for oxygen resistance/deformation resistance.

Core advantages: Compared to pure PPR pipes, the multi-layer structure combines low linear expansion, high rigidity, temperature and pressure resistance, while optimizing costs and making installation more worry free.

Applications:

Building cold and hot water delivery system

This is the core application scenario of the products on this production line. The multi-layer PPR pipes produced have the advantages of hygiene, non toxicity, and reliable hot melt connection of PPR material, as well as the low coefficient of linear expansion and high rigidity characteristics brought by the multi-layer structure, which solves the problems of easy deformation and obvious thermal expansion and contraction of pure PPR pipes during exposed installation.

Home decoration scenario: used for residential hot and cold water pipes, kitchen and bathroom water supply branch pipes, commonly with a specification of 20-63mm, to meet the safety and stability needs of household water use.

This pipe can be used as a branch pipe for low-temperature hot water underfloor heating, or as a connecting pipe for exposed radiators, suitable for heating water temperatures of 60-80 ℃. It is widely used in centralized heating in the north and household heating projects in the south.

Direct drinking water and purified water delivery

Food grade PPR raw materials combined with multi-layer co extrusion technology can produce multi-layer PPR pipes with smooth inner layers and no impurity precipitation, meeting the hygiene standards for direct drinking water transportation. At the same time, the rigidity advantage of the multi-layer structure can reduce the deformation of pipelines caused by water pressure fluctuations, avoid the growth of bacteria on the inner wall, and is suitable for direct drinking water pipelines in residential areas and pure water supply systems in office buildings.

Industrial low-pressure fluid transportation

In the fields of chemical and light industry, multi-layer PPR pipes can be used to transport non corrosive, low-pressure fluid media, such as solutions with low acid and alkali concentrations at room temperature, industrial cooling water, etc. Fiberglass reinforced multi-layer PPR pipes have stronger impact resistance, can adapt to slight vibrations in industrial environments, and are easy to install and maintain.

Solar hot water system

The upper and lower pipelines of solar water heaters are exposed to outdoor environments for a long time and are greatly affected by changes in environmental temperature. The low linear expansion characteristics of multi-layer PPR pipes can reduce the expansion and contraction deformation of pipelines caused by temperature differences between day and night. At the same time, their weather resistance is better than that of pure PPR pipes, and they can be used stably in environments of -10 ℃ -70 ℃, which is suitable for outdoor installation needs of solar hot water systems.

Specifications: 

Competitive Advantage:

Precise Multi-layer Co-extrusion, More Stable Composite Structure

Customized concentric co-extrusion system for PPR multi-layer composite pipes, precisely matching the melting characteristics of different materials such as PPR base material, adhesive layer, oxygen barrier layer/antibacterial layer. Independent screw temperature control and synchronous discharge ensure interlayer adhesion strength ≥80N/10mm without delamination. The pipe integrates the high-temperature resistance and toughness of PPR and the special functions of composite layers, with structural stability far exceeding single-layer pipes.

Customized Functional Layers, Adapt to Multi-scenario Demands

Support flexible customization of composite structures (PPR-oxygen barrier-PPR, PPR-antibacterial-PPR, PPR-glass fiber reinforced-PPR, etc.) to solve the pain points of single-layer PPR: oxygen barrier layer isolates oxygen to avoid pipeline scaling and metal corrosion, suitable for heating systems; antibacterial layer inhibits Escherichia coli and Staphylococcus aureus for a long time with bacteriostatic rate ≥99%, suitable for home drinking water; glass fiber reinforced layer improves rigidity and reduces thermal expansion coefficient by more than 30%, suitable for exposed pipelines. One equipment meets the production needs of multiple categories.

High-precision Temperature Control & Sizing, Both Dimension and Quality Meet Standards

Equipped with multi-section independent temperature control system, temperature control error of each layer ≤±1℃ to avoid interlayer defects caused by uneven melting; combined with vacuum sizing + multi-stage gradient cooling process, pipe concentricity ≥98%, outer diameter tolerance ≤±0.2mm, uniform wall thickness, smooth inner and outer walls without scratches, fully meeting the strict standards of home decoration and heating industries, with qualified rate of finished products stably above 99.6%.

Efficient Mass Production & Low Loss, Better Production Benefit

The whole machine adopts linked closed-loop control, realizing full automation from feeding, co-extrusion, sizing, traction, cutting to material turning, with traction speed synchronization accuracy ≤±0.15m/min, and production capacity 12%-18% higher than single-layer PPR production line; raw material utilization rate is up to 99% without overflow or waste, and the composite layer is precisely controlled in thickness without excessive material, effectively reducing raw material cost and shortening investment payback period.

Durable Core Components, Long-term Stable Operation

Material-contacting parts (multi-layer screw, co-extrusion die) adopt nitriding wear-resistant treatment, resistant to high-temperature wear and non-sticky, adapting to continuous production of different composite materials; heavy-duty frame and precision transmission system run without jitter and noise, enabling 24-hour uninterrupted mass production, with failure rate 25% lower than conventional models; standardized wear parts are easy to replace, saving 30% of later maintenance cost.

Intelligent Operation & Flexible Adaptation, Strong Compatibility

Equipped with touch screen intelligent control system, supporting storage and call of multiple formula parameters, no repeated debugging when switching composite specifications, easy for novices to master; compatible with 20mm-160mm full-specification home decoration/engineering pipes, supporting customization of different composite layers and functional layers, balancing home decoration retail and engineering bulk orders, and flexibly responding to market demand changes.