Heavy Duty Truck Trailer PU Coiled Air Brake Hose Spiral Air Line with Fittings

Durable PU coiled air hose for truck trailer air brake, self-retracting, high pressure resistant, with red spring protectors and metal connectors.

Description

Heavy Duty Truck Trailer PU Coiled Air Brake Hose

This premium PU coiled air brake hose (spiral air line) is specially designed for heavy-duty trucks and semi-trailers, serving as the core connecting component for the trailer air brake system. It delivers reliable pneumatic transmission between the tractor and trailer, ensuring safe and stable braking performance even under extreme road conditions.

Key Specifications

Material: High-performance Polyurethane (PU)
Standard Size: Inner Diameter 12mm × Outer Diameter 20mm (8×12mm optional)
Working Pressure: 1.6 MPa (232 PSI)
Burst Pressure: 6.4 MPa (928 PSI)
Temperature Range: -40°C ~ +80°C
Fittings: Standard metal pneumatic connectors (M16×1.5 / M22×1.5 universal)
Protectors: Red reinforced spring protectors at both ends (anti-wear, anti-kink)
Feature: Self-retracting spiral design, automatic recovery after stretching
Quality Standard: ISO 9001, SAE J844, GB/T 10544

Compatible Applications & Vehicles

Application Positions

Tractor-trailer air brake system connection
Trailer emergency & service air line
Cab air suspension, height control valve air line
Clutch booster, air horn, seat airbag pneumatic system
All heavy truck pneumatic control circuits

Fitment Vehicles

Universal for all heavy-duty trucks and semi-trailers:

Sinotruk: HOWO, SITRAK, Hohan, Steyr
Shacman: Delong F2000/F3000/M3000/X3000
FAW Jiefang: J6P, JH6, Aowei
Foton Auman: ETX, EST, GTL
Dongfeng Kinland, Hongyan Genlyon, Beiben, CAMC
European Trucks: Scania, Volvo, Mercedes-Benz, MAN, DAF
All standard semi-trailers, dump trailers, tank trailers

Core Features & Benefits

✅ Superior PU Material: High elasticity, wear-resistant, oil-resistant, anti-aging, far more durable than rubber hoses

✅ Self-Retracting Spiral Design: Automatically retracts after stretching, avoids dragging on the ground, prevents abrasion and entanglement

✅ High Pressure Resistance: Withstands 1.6MPa working pressure, 6.4MPa burst pressure, 100% safe for air brake systems

✅ Anti-Wear Protectors: Red reinforced spring guards at both ends protect hose from bending, kinking and friction damage

✅ Universal Metal Fittings: Standard thread size, direct fit for most truck air brake systems, no modification required

✅ Wide Temperature Adaptability: Works stably from -40°C to 80°C, suitable for cold and hot extreme environments

✅ Easy Installation: Lightweight, flexible, quick to connect and disconnect, ideal for fleet maintenance and replacement

Our product range covers critical components such as:
✅ SINOTRUCK & Weichai Engine Parts
✅ SINOTRUCK & FAST Transmission Parts
✅ Chassis Components
✅ Cab Parts
✅ Excavator Components
✅ Bulldozer Components
✅ Grader Components