Qingdao Zhongrui Plastic Machinery Co., Ltd., a leading manufacturer based in Jiaozhou, Qingdao, specializes in high-performance plastic machinery, with its Polyester Thread Knitting Reinforced PVC Layflat Hose Making Machine standing out as a flagship product. This advanced production line is engineered to meet the stringent demands of industries requiring top-tier PVC hoses, integrating cutting-edge technology to ensure precision, efficiency, and durability throughout the manufacturing process.
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Product Description
This polyester-reinforced PVC layflat hose line is manufactured by Qingdao Zhongrui Plastic Machinery Co., Ltd. It is designed for the production of PVC layflat hoses with polyester thread knitting reinforcement. The line integrates extrusion, knitting reinforcement, and calibration processes, supporting the production of hoses for irrigation, industrial fluid transport, and construction applications.
The line processes PVC and polymer blends including SBR, NR, EPDM, and NBR formulations. Produced hoses have a lightweight structure, with resistance to abrasion, corrosion, ozone, and ultraviolet radiation. Standard hoses operate within a temperature range of -20℃ to 80℃, with high-temperature formulations supporting up to 150℃. The hoses are designed for low fluid leakage under rated working pressure.
The extrusion system features a screw and barrel made from 38CrMnAl material, with a 30:1 length-to-diameter ratio. It supports efficient melting and homogenization of PVC and blended materials, with precise multi-zone temperature control to prevent material degradation. The system produces hoses with a wall thickness tolerance of ±0.1mm under standard operating conditions.
The line uses an interchangeable die system, which supports production of hoses in round, flat, and corrugated shapes. The calibration unit combines water cooling and sizing sleeves to ensure dimensional accuracy. Operators can switch between die sets to produce different hose sizes and profiles, supporting both small-batch custom orders and large-scale mass production.
Online sensors monitor hose diameter, wall thickness, and surface defects continuously during production. When parameters deviate from preset standards, the system sends real-time alerts, and can adjust production parameters automatically. The system reduces material waste caused by unqualified products, and ensures consistent product dimensions across production runs.
The table below lists parameters of available models, with all data retained as original specifications:
Mould | Screw Diameter (mm) | L/D | Material | Motor Power (kw) | Install Power (kw) | Height (mm) | Hose Diameter (mm) |
|---|---|---|---|---|---|---|---|
SJ-65 | 65 | 30 | 38CrMnAl | 15 | 28 | 1100 | 25-75 |
SJ-90 | 90 | 30 | 38CrMnAl | 37 | 52 | 1100 | 75-152 |
SJ-120 | 120 | 30 | 38CrMnAl | 55 | 75 | 1100 | 102-200 |
Hoses produced by this line are used in agricultural irrigation systems and horticultural spraying operations. The material withstands prolonged exposure to sunlight and temperature fluctuations, supporting long-term outdoor use. The flexible structure simplifies installation around crop fields, and the smooth inner wall reduces water flow resistance.
In industrial settings, the hoses transport water, oils, and chemical fluids. The corrosion-resistant properties support handling of aggressive substances, and the hoses can be used in compressed air pneumatic systems under rated pressure. They are applied in oil fields, chemical processing plants, and water and sewage transport projects.
The hoses have a lightweight design and wear-resistant structure, suitable for household gardening, plumbing, and construction site cleaning tasks. They can be connected to standard water faucets, and resist wear from daily dragging and outdoor use.
Depending on the selected model, the line can produce hoses with diameters ranging from 25mm to 200mm. The SJ-65 model covers 25-75mm, SJ-90 covers 75-152mm, and SJ-120 covers 102-200mm.
The extruder screw and barrel are manufactured from 38CrMnAl material, selected for wear resistance and thermal stability during continuous extrusion operation.
Yes. The line is equipped with an interchangeable die system, which supports production of round, flat, and corrugated hoses by switching corresponding die heads.
Standard PVC hoses from this line operate within -20℃ to 80℃. Hoses made with high-temperature material formulations can support operating temperatures up to 150℃.