1、 Structural design: Multi layer composite ensures high strength and durability The steel wire braided air hose consists of an inner adhesive layer, a reinforcement layer, and an outer adhesive layer, designed specifically for the transmission of high-pressure compressed air and inert gases. Internal adhesive layer Using oil resistant and aging resistant nitrile rubber (NBR) with a thickness of ≥ 2.5mm and a smooth surface (roughness Ra ≤ 3.2 μ m) to reduce airflow resistance; Enhancement layer Double layer high-strength galvanized steel wire wrapped at a weaving angle of 54 °± 2 °, with a tensile strength of ≥ 2200MPa and a burst pressure of ≥ 12MPa (in accordance with SAE J1402 standard); Outer adhesive layer Weather resistant chloroprene rubber (CR) or polyurethane (PU), with a thickness of ≥ 1.5mm, resistant to ultraviolet radiation and mechanical wear. Core advantage: The multi-layer composite structure balances flexibility (bending radius ≤ 4 times the pipe diameter) and pressure resistance, and is suitable for dynamic working conditions. 2、 Performance parameters: high pressure, temperature resistance, and resistance to medium corrosion Steel wire braided air hose is suitable for harsh industrial environments, with key performance including: Pressure range Static working pressure of 1.0~3.0MPa, dynamic pressure of 0.8~2.5MPa, pulse test passed 500000 times (ISO 6803 standard); Temperature adaptability -40 ℃~+120 ℃, no brittle fracture under low temperature environment (ASTM D746 test), high temperature resistance to short-term 150 ℃ thermal shock; Dielectric resistance Resistant to hydraulic oil (IRM 903), weak acidity and alkalinity (pH 5-9), and ozone (50 pphm exposure for 96 hours without cracks). Case data: A certain automobile manufacturing plant used DN32 hoses to transport 2.8MPa compressed air, which operated continuously for 5 years without leakage. 3、 Core application scenarios and industry pain point solutions Steel wire braided hoses demonstrate significant value in the following areas: Mining Machinery Wear resistance of the outer adhesive layer (DIN 53516 test ≤ 80mm ³), resistance to rock impact and dust erosion; Engineering vehicles Small bending radius (DN50 pipe can be bent up to R200mm), suitable for narrow space layout; Chemical gas transmission Anti static design (surface resistance ≤ 1 × 10 ⁶ Ω) to eliminate the risk of flammable gas explosion; Automated production line Match with ISO 16030 standard quick change connector, supporting 10000 insertions and removals without air leakage. Industry benefits: After being adopted by a certain mining enterprise, the equipment downtime rate was reduced by 45%, and the hose life was extended to more than 3 years. 4、 International Standard Certification and Quality Verification System To ensure safety and reliability, steel wire braided hoses must undergo strict testing: Blasting pressure test ≥ 4 times the working pressure (DN25 pipe burst pressure ≥ 12MPa, in accordance with ISO 5774); Corrosion resistance verification After the salt spray test (5% NaCl solution x 720h), the steel wire showed no rust and the outer rubber showed no delamination; Pulse fatigue test ： Cycle 500000 times at a frequency of 1Hz under a pressure of 2.5MPa without cracking or interlayer separation. Certification qualifications: Obtained MSHA (Mine Safety), RoHS 2.0, and FDA food grade (optional) certifications to meet global market access requirements. 5、 Installation standards and maintenance strategies Practical guide for extending service life: Joint selection Priority should be given to using 24 ° conical sealed stainless steel joints (such as ISO 7241-B series) to avoid scratching the inner layer with threads; Bending restriction Minimum bending radius ≥ 3 times the pipe diameter (DN40 pipe ≥ 120mm) to prevent wire breakage; Pressure matching Dynamic pressure should not exceed 80% of the nominal value (such as recommended ≤ 2.4MPa for 3.0MPa pipes); Regular testing Check the wear of the outer rubber every 6 months (if the depth is greater than 1mm, it needs to be replaced), and test the airtightness of the joint. Maintenance benefits: Standardized operation can increase the lifespan of hoses by 30% and reduce maintenance costs by 50%.