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Hydrolysis Resistant Polyether PU Spiral Flexible Tube

  1. This Spiral Flexible Hose returns to its original shape instantly after extension without losing structural tension.
  2. The smooth inner wall and kink resistant design prevent air blockages during continuous mechanical motion.
  3. Built to withstand daily flexing and stretching without cracking or dropping in operational performance.

Description

🟦 Product characterization And Application

Feature:
  1. Excellent Coil Memory
    Retracts instantly without kinking or losing tension. This spiral flexible hose maintains its spring-back force over extended service life.
  2. Hydrolysis & Wear Resistance
    Made of premium 95A-98A PU. This spiral plastic tubing resists humidity and abrasion, operating reliably from -40°C to +70°C.
  3. Full Range & Custom Sizes
    Available from 4mm to 16mm OD with customizable tails and straight lengths up to 20m. This spiral hose meets diverse mechanical dimensions.
  4. Pressure Stability
    Withstands working pressures up to 0.8 Mpa at 20°C, ensuring safe and stable airflow without tube bursting.
Application:
  1. Robotics & Advanced Automation
    Widely integrated into pneumatic, bionic, and medical robots. It provides reliable air supply for heavy-duty assembly, precision welding, high-speed material handling, and automated spray painting systems.
  2. Pneumatic Systems & Industrial Tools
    Essential for factory automation lines and packaging machinery. It delivers stable performance in pneumatic conveying systems, industrial air tools, and CNC machine pneumatic control lines.
  3. Specialized Machinery & Medical Devices
    Commonly utilized in vacuum lifting systems and industrial dust extraction equipment. It is also designed to meet the strict clean-air requirements of medical devices and laboratory equipment.

PDF

🟦 Product Information

Product Name Spiral Flexible Hose
Material Polyether polyurethane
Fluid Air, Water
Hardness 95A-98A
Working temperature -40 ℃~+70 ℃ (Air)
0 ℃~+40 ℃ (Water)
Maximum working pressure (at 20 °C) 0.8Mpa
Length Can be customized (Maximum straight tube length is 20 meters)
Size Customizable
Color Customizable
Tolerance OD4-12mm, tolerance is ± 0.1mm
OD14-16mm,tolerance is ± 0.15mm
Certification RoHS,REACH,CE,DOT
Applicable fittings air fitting
Insert fittings
brass tube fitting
Note: Custom sizes, colors, hardness, burst pressures, and temperatures are available—please contact the company for technical specifications.

PUR Spiral Tube🟦 Product Parameters

Model OD × ID
(мм)
Working temperature
(℃)
Maximum working pressure
(MPA)
Minimum bending radius
(Mm)
20 ℃ 40 ℃ 60 ℃
LCTCU0425 4 × 2.5 -40 ℃ ~+70 ℃
Air
0 ℃ ~+40 ℃
Water
Air
0.8
Water
0.6
Air
0.65
Water
0.5
Air
0.5
Water
0.4
10
LCTCU0604 6 × 4 15
LCTCU0805 8 × 5 20
LCTCU1065 10 × 6.5 30
LCTCU1208 12 × 8 35
LCTCU1410 14 × 10 55
LCTCU1612 16 × 12 65
FAQ

Q1: What is the difference between polyester and polyether PU?
Polyether PU: Engineered with exceptional resistance to hydrolysis, continuous moisture, and microbial attack. It maintains high flexibility in cold environments and is the industry standard for water lines, pneumatic plumbing in high-humidity zones, and outdoor applications.
Polyester PU: Provides high mechanical tensile strength and superior resistance to dry abrasion, but the chemical bonds will degrade and become brittle when exposed to long-term moisture, humidity, or water contact.

Q2: Does polyether absorb water?
No, polyether PU has excellent water resistance and low moisture absorption. Unlike polyester, its chemical bonds do not break down when in prolonged contact with water or high humidity, preventing premature degradation and maintaining long-term stability in wet pneumatic or fluid systems.

Q3: How to distinguish between polyester and polyether PU Hoses?

Method Polyester PU Polyether PU
Boiling Water Test Degrades, becomes brittle, or cracks after long exposure. Remains unchanged; retains flexibility and strength.
Smell / Burn Test Produces a sweet, pleasant ester odor when burned. Produces a pungent, sharp ether odor when burned.
Microbial Exposure Prone to mold and fungus growth in warm, humid zones. Highly resistant to fungus and microbial degradation.

Q4: How to cut a spiral tube properly to meet technical requirements?
We supply spiral tubes strictly tailored to your engineering drawings, ensuring proper spring tension by configuring customized straight tail lengths (E/F lengths) directly at our factory. To avoid manual installation errors on-site, we offer precise factory pre-cutting and end-trimming according to your exact assembly blueprints, ensuring a completely clean, square-cut edge for guaranteed leak-free connections.

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Ningbo Langchi New Materials
Technology Co., Ltd.

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Contact LANGCHI

0086-18967852506

59 Lixin Road, Zonghan Street,
Cixi, Ningbo, Zhejiang,
China, 315301

Ningbo Langchi New Materials
Technology Co., Ltd.

Follow us online!

Contact LANGCHI

0086-18967852506

59 Lixin Road, Zonghan Street,
Cixi, Ningbo, Zhejiang,
China, 315301

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