Six Layer Steel Wire Wound Hose

The JIDONGDA Six Layer Steel Wire Wound Hose is a high-performance hydraulic system component designed for extreme operating conditions. Unlike standard four-layer reinforced hoses, this product features a six-layer spiral steel wire construction and a multi-stage load-damping system. This configuration ensures multidimensional stress distribution, effectively counteracting high-pressure spikes, impulse fatigue, and structural deformation. With pressure ratings and safety factors that significantly exceed those of conventional hydraulic hoses, this model is ideally suited for heavy industrial machinery, ultra-high-pressure hydraulic systems, and specialized equipment operating under high-load and high-risk conditions.

Main design features

1. High performance oil resistant inner layer

Made from modified nitrile butadiene rubber (NBR), this layer has excellent hydraulic oil resistance and low permeability. It is resistant to swelling and damage during prolonged use under high pressure, ensuring stable transportation of the working fluid.

2. Six-layer steel wire reinforcement with spiral winding

Six layers of high-tensile steel wire, wound in a spiral at different angles, form an omnidirectional load-bearing frame, which significantly improves the hose's ultimate pressure resistance, tear resistance and structural integrity.

3. Multi-stage damping layer

A special intermediate buffer structure quickly absorbs high-frequency pressure surges and reduces the fatigue effect on the steel wire, significantly extending the service life of the hose under pulsed load conditions.

4. Industrial-grade wear-resistant outer coating

The special wear-resistant rubber coating is resistant to ultraviolet radiation, oil, mechanical shock and industrial corrosion, making the hose suitable for use in harsh outdoor and mining environments.

Key Application Areas

Compatible with ultra-high-pressure industrial hydraulic systems, heavy construction machinery, metallurgical press equipment, power generation and oil & gas industry equipment, marine and offshore platforms, and various specialized industrial systems requiring enhanced safety.

Examples of Real-World Engineering Applications

Example 1: Urban Metro Tunnel Boring Machine (TBM) Project

As part of a domestic infrastructure project, the main hydraulic drive system of a 6.8-meter earth-pressure balance (EPB) tunnel boring machine was equipped with JIDONGDA's six-layer steel-wire-wound hydraulic hoses. The system operated continuously year-round, subjected to rock contact and high-frequency pressure impulse loads of 70 MPa. Post-operation inspections revealed no cracks, leaks, or steel reinforcement ruptures; compared to traditional four-layer hoses, the frequency of hose replacement dropped by 75%, significantly reducing losses associated with construction downtime.

Example 2: Offshore Oil and Gas Platform Hydraulic System

A Southeast Asian energy company equipped the deck machinery of a drilling platform with specialized JIDONGDA six-layer hoses featuring cold resistance and anti-static properties. Designed for harsh environments—including exposure to salt spray, extreme temperature fluctuations, and impulse loads caused by wave action—the hoses have demonstrated stable performance for over two years. The products are certified for explosion safety compliance in oil and gas platform applications, effectively mitigating risks associated with static electricity buildup and hose failure.

Key Product Features

1. Ultra-high-pressure design: Six-layer steel wire reinforcement ensures an exceptionally high burst safety factor, making it suitable for extremely high operating pressures.

2. Multi-directional reinforcement: Uniform pressure distribution in all directions significantly enhances resistance to bursting and deformation.

3. High impulse strength: Capable of withstanding prolonged high-frequency pressure surges with excellent fatigue resistance.

4. Stable, continuous operation: Suitable for round-the-clock, heavy-duty operation without interruption.

5. Broad environmental adaptability: Resistant to oils, extreme temperatures (both high and low), industrial corrosion, and UV radiation.

6. High safety standards: Complies with rigorous safety requirements for critical, high-risk industrial equipment.

Custom Configuration Options

JIDONGDA offers solutions tailored to specific requirements, including various configurations: reinforced 6SH construction for ultra-high pressure, heat-resistant versions (150–180°C), cold-resistant versions (-50°C), fire-resistant outer covers, anti-static designs, fittings compliant with SAE/DIN/EN standards, explosion-proof layers, and custom assemblies.

Key Product Advantages

1. Exclusive six-layer steel wire construction designed for ultra-high pressure, delivering industry-leading pressure resistance and safety margins.

2. Suitable for a wide range of extreme and harsh industrial environments, such as mining, shipbuilding, and metallurgy.

3. High resistance to impulse surges and fatigue, effectively reducing equipment replacement and maintenance costs.

4. Supports customization for diverse scenarios, adapting to non-standard equipment and specialized operating conditions.

5. Widely used in high-tech hydraulic system projects globally and highly recognized in the market.

6. Comprehensive quality control throughout production, ensuring factory compliance with pressure resistance standards, along with reliable safety and stability.

Frequently Asked Questions

Q1: Under what operating conditions should a Six Layer Steel Wire Wound Hose be chosen over a standard four-layer hose?

A1: JIDONGDA six-layer steel-reinforced hoses are essential for demanding applications involving prolonged operation at ultra-high pressures, high-frequency pressure pulses, and significant instantaneous pressure spikes, as well as for use in environments such as mines or offshore platforms. Their multi-directional cross-reinforcement structure delivers pressure ratings, burst resistance, and impulse life that far exceed those of four-layer hoses, effectively preventing failures such as hose rupture or fluid leakage.

Q2: Can JIDONGDA Six Layer Steel Wire Wound Hoses be adapted for environments with cyclical temperature fluctuations (high/low temperatures)?

A2: Yes. We offer specialized temperature-resistant versions: high-temperature models operate reliably at 150–180°C, while low-temperature models retain their rubber elasticity (without hardening or cracking) at temperatures as low as -50°C. Furthermore, these hoses can combine various properties, such as heat resistance, fire resistance, and anti-static capabilities.

Q3: Which international standards do the fittings meet? Is it possible to order custom-made products?

A3: Our standard fittings are compatible with major international standards, including SAE, DIN, and EN. All hose assemblies undergo rigorous pressure testing before leaving the factory and comply with industry technical specifications. We also offer custom manufacturing services for fittings and complete piping systems tailored to specialized equipment and overseas engineering projects.