Standard single or double-braid hydraulic hoses may not provide sufficient safety margins in high-pressure systems operating under extreme impulse loads, tight bend radii, or chemically aggressive environments. This Multi-layer steel wire braided flexible hydraulic hose is built with 2 to 4 layers of high-tensile steel wire braid, allowing pressure ratings up to 80 MPa (11,600 psi) while retaining enough flexibility for practical installation. Manufactured by Hengshui Zhehan Rubber & Plastic Products Co., Ltd., the hose is engineered for users who need verifiable performance data and long service intervals in demanding industrial applications.
The Multi-layer steel wire braided flexible hydraulic hose is available in 2-layer, 3-layer, or 4-layer steel wire braid configurations. Each additional braid layer increases the working pressure rating and burst margin. This allows you to specify the exact pressure class your system requires without over-engineering the hose assembly.
- 2-layer: working pressure up to 35 MPa (5,076 psi)
- 3-layer: working pressure up to 55 MPa (7,977 psi)
- 4-layer: working pressure up to 80 MPa (11,603 psi)
Multi-layer hoses in this series have been impulse-tested at the rated working pressure for 1,000,000 cycles without leakage or structural failure. This is double the cycle count of many standard double-braid hoses and is particularly relevant for hydraulic systems with rapid pressure reversals, such as forging presses and mining roof supports.
Despite the additional reinforcement layers, the hose has been designed with a minimum bend radius approximately 15% smaller than comparable multi-layer hoses of the same diameter. This is achieved through optimized braid angle and a thinner, high-adhesion rubber interlayer. The result is easier routing in confined machine compartments without sacrificing pressure capacity.
The inner tube is compounded from oil-resistant synthetic rubber, while the cover uses a chloroprene-based weather-resistant compound. The hose is suitable for mineral hydraulic oil, water-oil emulsions, and many standard industrial fluids. It remains serviceable from -40°C to +120°C (-40°F to +248°F) continuous, making it suitable for both cold-climate outdoor equipment and hot industrial environments.
The outer cover uses an abrasion-resistant formulation that has shown a service life approximately 40% longer than conventional hydraulic hose covers in comparable operating conditions. This reduces replacement frequency and downtime in abrasive environments such as mining and quarrying.
The hose is manufactured using a one-step vulcanization process that bonds the inner tube, reinforcement layers, and cover into a single solid structure. This prevents layer separation, a common cause of blistering and leakage in inferior hoses. Each hose is pressure-tested at 1.5 times its rated working pressure before leaving the factory.
Excavators, wheel loaders, cranes, and rollers. The 3-layer and 4-layer versions are often selected for main pump discharge lines and boom cylinders where pressure spikes are frequent.
Hydraulic roof supports, continuous miners, and rolling mill systems. The hose withstands rock impact, dust ingress, and continuous high-pressure operation in underground and steel plant conditions.
Drilling rigs, hydraulic power units, and chemical transfer lines (for compatible fluids only). The hose resists oil, mild chemicals, and temperature fluctuations.
Large self-propelled sprayers, injection molding machines, and conveyor hydraulic drives. The smaller bend radius simplifies installation on compact equipment.
| Parameter | Details |
| Pressure Range | 10 MPa to 80 MPa depending on braid layers and diameter |
| Inner Diameters | 6 mm to 51 mm, multiple standard sizes |
| Standard Lengths | 10 m, 20 m, 100 m; custom cut lengths available |
| Inner Tube | Oil-resistant synthetic rubber (NBR-based) |
| Reinforcement | 2 to 4 layers of high-carbon steel wire braid |
| Outer Cover | Abrasion and weather-resistant synthetic rubber (chloroprene-based) |
| Operating Temperature | -40°C to +120°C continuous |
| Media Compatibility | Mineral hydraulic oil, water-oil emulsions, water-based fluids; not for strong acids/alkalis or solvents |
Do not twist the hose during assembly. Use the published minimum bend radius as a hard limit; exceeding it can kink the reinforcement and reduce service life. If routing near hot surfaces or sharp edges, use protective sleeving or clamps.
Never operate the hose above its rated working pressure. Transient pressure spikes should not exceed the rated working pressure by more than 10-15% for extended periods. For systems with known pressure spikes, select the next higher pressure class.
The hose is not designed for strong acids, strong alkalis, or chlorinated solvents. If your application involves such media, contact the manufacturer for a custom compound recommendation.
Inspect the hose at regular intervals for cover cuts, abrasion, swelling, or exposed wire. Replace immediately if any reinforcement is visible or if the hose has been crushed or kinked beyond its minimum bend radius.
Store in a cool, dry, ventilated area away from direct sunlight and ozone sources. Avoid stacking heavy objects on hose coils. Flush and drain hoses before long-term storage.
Standard samples are provided free of charge for evaluation. Customer covers shipping.
Stock sizes: 1 roll or cut length. Custom configurations: low MOQ, depending on diameter and layer count.
Inner diameter, length, braid layer count, pressure rating, cover color, branding, and fitting assemblies can be customized. Engineering drawings are accepted.
100% pressure testing and dimensional inspection on every batch. The product carries an 18-month warranty against material and manufacturing defects under normal use.
Hengshui Zhehan Rubber & Plastic Products Co., Ltd. is a direct manufacturer with over 8 years of production experience in hydraulic hoses and rubber products. Key operational facts:
- Factory located in Jingxian County, Hebei Province, with 6 production lines.
- 120+ employees, including 18 engineering and quality-control staff.
- In-house rubber compounding, wire braiding, cover extrusion, vulcanization, and final testing.
- Documented quality management system covering incoming raw material inspection through final product release.
- Logistics access via nearby expressways and rail lines for domestic and export shipping.
The company has supplied multi-layer hydraulic hoses for construction, mining, petrochemical, and agricultural applications across multiple provinces and international markets.
A: Select based on your system's maximum working pressure and expected pressure spikes. If your system operates up to 35 MPa, a 2-layer hose may be sufficient. For higher pressures or more severe impulse conditions, 3 or 4 layers provide greater safety margins. Our engineers can help you match the hose to your hydraulic schematic.
A: The double-braid hose is limited to 2 layers and a maximum working pressure of about 35 MPa. This multi-layer series extends to 4 layers and 80 MPa, with a higher impulse life (1,000,000 cycles) and a slightly larger diameter range. It is intended for more severe applications.
A: Standard NBR-based inner tubes are not recommended for phosphate ester fluids. We can provide a special compound for such applications. Please specify the fluid type when requesting a quote.
A: Yes. We can supply the hose with matched crimped fittings, tested as a complete assembly. Provide the fitting specifications or equipment model, and we will prepare the assembly accordingly.
A: Custom production lead time depends on the diameter, layer count, and quantity. We confirm the schedule during order negotiation. Stock items can be dispatched within a few days.
Address
No. 7126, Zhanggehou Rubber & Plastic Base, Jingzhou Town, Jing County, Hengshui City, Hebei Province, Chinaa
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