Two-Layer PE and One-Layer Fiber-Reinforced Layflat Hose Extrusion Line

1. SJ65/33 Single-Screw Extruder

The SJ65/33 extruder is designed for stable extrusion of one PE layer.

· 65 mm screw diameter with a 33:1 L/D ratio

· Maximum output of approximately 10–80 kg/h

· 22 kW AC motor controlled by an ABB inverter

· Maximum screw speed of 78 rpm

· 16 kW barrel heating capacity

· Screw and barrel manufactured from nitrided 38CrMoAlA steel

· Low-noise gearbox and barrel cooling blower

· Automatic material loader and drying hopper

Selling Point:
The long 33:1 screw design provides effective plasticization and stable material output, helping produce a uniform PE layer with consistent thickness.

2. SJ55/33 Single-Screw Extruder

The SJ55/33 extruder works together with the SJ65 extruder to produce the second PE layer.

· 55 mm screw diameter with a 33:1 L/D ratio

· Maximum output of approximately 10–60 kg/h

· 22 kW AC motor controlled by an ABB inverter

· Maximum screw speed of 78 rpm

· 14 kW barrel heating capacity

· Nitrided 38CrMoAlA screw and barrel

· Low-noise gearbox and cooling blower

· Automatic loader and drying hopper

Selling Point:
Independent inverter control allows the output of the inner and outer layers to be adjusted separately, helping optimize layer thickness and material consumption.

3. Hose Guide Unit

· 500 mm guide length

· Equipped with four guide rollers

Selling Point:
The guide rollers keep the hose properly aligned between extrusion, braiding and coating stages, reducing deviation during continuous production.

4. Inner and Outer Layer Dies

· Suitable for hoses from 2 to 6 inches

· Available diameters include 63 mm, 90 mm and 110 mm

· Made from forged 45# steel

· Chrome-plated die surfaces

Selling Point:
The forged and chrome-plated dies provide good wear resistance, smooth material flow and a cleaner hose surface.

5. High-Speed Braider

· Two 2.2 kW motors

· Controlled by a 7.5 kW ABB inverter

· Maximum operating speed of 320 rpm

· 24 × 2 fiber configuration

· Supports approximately 12 kg yarn packages

· Suitable for 2–6 inch hoses

Selling Point:
The high-speed braiding system distributes PET yarn evenly around the inner PE layer, improving the hose’s pressure resistance and dimensional stability.

6. Vacuum Calibration Unit

· 2,000 mm calibration length

· Stainless-steel tank

· 2.2 kW vacuum pump

· 2.2 kW water pump

· Automatic control system

Selling Point:
Vacuum calibration stabilizes the hose diameter and shape immediately after extrusion, improving dimensional accuracy and surface quality.

7. Water Cooling Tank

· 3,000 mm cooling length

· Stainless-steel construction

Selling Point:
The extended cooling section provides sufficient and uniform cooling, helping prevent hose deformation before haul-off and winding.

8. Integrated Haul-Off and Winding Unit

· Adjustable haul-off speed of 0.8–10 m/min

· Five-roller gear-driven structure

· 7.5 kW AC haul-off motor

· ABB inverter control

· Winding torque of 40 N·m

Selling Point:
The five-roller haul-off provides stable traction without damaging the hose, while the integrated winder ensures compact and orderly finished rolls.

9. Roller Haul-Off Unit

· Twin-roller structure

· 1.5 kW motor

· ABB inverter control

Selling Point:
The auxiliary roller haul-off synchronizes material movement between production stages and helps maintain stable line tension.

10. Automatic Electrical Control System

· Schneider contactors and relays

· OMRON digital temperature controllers

· Independent inverter speed control

Selling Point:
Reliable international-brand electrical components provide accurate temperature and speed control while simplifying operation and maintenance.