DIN EN 856 4SP Hydraulic Hose | Four Spiral Steel Wire Reinforced Rubber Hose For Heavy Duty Ultra High Pressure

DIN EN 856 Type 4SP four spiral steel wire hydraulic hose features oil-resistant synthetic rubber inner tube, four layers high tensile spiral steel wire reinforcement and abrasion & weather resistant outer cover. Suitable for petroleum-based hydraulic oil in construction, mining and metallurgy heavy-load hydraulic circuits with 400,000 cycles pulse life, working temperature from -40℃ to +100℃.

Product Overview

DIN EN 856 Type 4SP hydraulic hose is a premium heavy-duty spiral hydraulic rubber hose engineered for ultra-high pressure hydraulic systems under continuous heavy load conditions. The hose construction consists of an oil-resistant synthetic rubber inner tube, four layers of high tensile steel wire spiral reinforcement, and a durable synthetic rubber outer cover with excellent abrasion and weather resistance. Thanks to its four-spiral steel wire structure, this hose delivers outstanding tensile strength, high burst pressure and stable performance under frequent pressure surges. It maintains reliable sealing and flexibility even in harsh working environments. It is specially formulated to work with petroleum-based hydraulic fluids and widely adopted in heavy industries such as construction machinery, mining equipment and metallurgical plants.

Key Construction & Technical Parameters

Standard: DIN EN 856 Type 4SP

Inner Tube: Oil resistant synthetic rubber

Reinforcement: Four layers high tensile steel wire spiral

Outer Cover: Abrasion & weather resistant synthetic rubber

Working Temperature Range: -40℃ ~ +100℃

Pulse Life: 400,000 cycles

Compatible Medium: Petroleum-based hydraulic oils

Characteristic: High burst pressure, anti-fatigue, heavy load resistance, good flexibility

Main Advantages

✅ Superior pressure resistance: Four spiral steel wire reinforcement supports ultra-high pressure working conditions, ideal for heavy-duty hydraulic circuits.

✅ Excellent oil resistance: The inner synthetic rubber tube prevents swelling and degradation when contacting petroleum hydraulic oil.

✅ Long service life: 400,000 cycles pulse fatigue performance, stable under repeated pressure shocks.

✅ Robust outer cover: Resists abrasion, ozone, sunlight and weathering for outdoor site applications.

✅ Wide temperature adaptability: Performs reliably from low temperature cold areas up to +100℃ continuous operation.

✅ Strictly manufactured to DIN EN 856 industry standard, fully traceable quality.

Application Scenarios

Our DIN EN 856 4SP hydraulic hose is designed for ultra-high pressure heavy-duty hydraulic circuits. It is the preferred hose choice for equipment under extreme load and frequent pressure fluctuation. Typical industries and equipment:

Construction machinery: Excavators, loaders, bulldozers, heavy lifting equipment

Mining industry: Underground mining machines, ore transport & hydraulic power units

Metallurgy: Steel mill hydraulic stations and heavy metallurgical machinery

Important Notes

Please confirm working pressure, hose bore size, overall length and fitting specification before placing your order. This hose is compatible with petroleum-based hydraulic oils only. It is NOT suitable for water-based hydraulic fluids, acids, alkalis and most chemical media without special custom formulation. Proper hose routing, bending radius protection and correct fitting assembly are required to maximize service life and avoid premature failure. We can supply finished hose assemblies with matched hydraulic fittings upon customer request.

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