Reliable Hydraulic Hose Solutions for Global Industrial Applications
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The EN856 4SP four-spiral hydraulic hose is engineered for extremely high-pressure hydraulic systems. As a professional hydraulic hose manufacturer, Zhongxu produces four-spiral hoses with high-tensile steel wire reinforcement for demanding hydraulic applications.
Zaozhuang Zhongxu 4SP hoses undergo impulse testing up to 400,000 cycles, exceeding EN 856 requirements.
Key Features
Inner tube: oil-resistant NBR synthetic rubber
Reinforcement: four alternating layers of high-tensile steel wire spiral
Cover: thick abrasion, oil and weather-resistant synthetic rubber
Engineered for:
Hydraulic mining shovels
Drilling rigs
Heavy-duty excavators
Tunnel boring machines
Offshore & marine hydraulics
Tube:Black, oil-resident synthetic rubber(Nitrile)
Reinforcement:Four alternating layers of spiraled, high-tensile steel wire.
Cover:Black, oil, abrasion and weather resistant, synthetic rubber.
Temperature Range:-40℉ to +250℉ (-40℃ to +121℃)
Inside Diameter | W.D. | O.D | W. P | P.P | B.P | Min. B.R | Weight | ||
inch | mm | mm | mm | psi | Bar | Bar | Bar | mm | kg/m |
3/8 | 9.3-10.1 | 17.4-18.2 | 21.2-22.0 | 6453 | 445 | 1070 | 1780 | 180 | 0.75 |
1/2 | 12.3-13.5 | 20.3-21.1 | 24.2-25.0 | 6018 | 415 | 1020 | 1660 | 230 | 0.89 |
5/8 | 15.5-16.7 | 23.8-24.6 | 27.7-28.5 | 5075 | 350 | 840 | 1400 | 250 | 1.1 |
3/4 | 18.6-19.8 | 28.3-29.1 | 32.2-33.0 | 5075 | 350 | 840 | 1400 | 300 | 1.5 |
1 | 25.0-26.4 | 35.4-36.2 | 39.2-40.0 | 4060 | 280 | 765 | 1120 | 340 | 2.02 |
1-1/4 | 31.4-33.0 | 45.1-45.9 | 50.2-51.0 | 3045 | 210 | 500 | 840 | 460 | 3.05 |
1-1/2 | 37.7-39.3 | 51.6-52.4 | 56.7-57.5 | 2683 | 185 | 445 | 740 | 560 | 3.4 |
2 | 50.4-52.0 | 64.6-65.4 | 70.7-71.5 | 2393 | 165 | 400 | 660 | 660 | 4.35 |
Manufacture hoses that meet or exceed DIN EN856 4SP . If you do not find your specified technical data in the table below, please send us your specified technical data.
A controlled production process from raw materials to final shipment helps ensure consistent quality and reliable batch performance.
Impulse tested to 400,000+ cycles under cyclic pressure loading
100%% proof pressure tested at 2× working pressure on every batch
Burst pressure ≥ 3× working pressure per EN 856
Full traceability from wire and rubber to finished hose
OEM branding, MSHA-style flame-resistant covers and custom hydraulic hose solutions are available.
Proven in mining shovels, drilling rigs and offshore hydraulic applications
Inner Tube | Oil-resistant NBR synthetic rubber |
|---|---|
Reinforcement | Four alternating high-tensile steel wire spirals |
Cover | Abrasion & weather resistant synthetic rubber |
Temperature | -40°C to +120°C |
Standard | EN856 4SP / SAE 100R12 |
Inside Diameter | 1/2" to 2" |
Working Pressure | 45 MPa (1/2") to 16 MPa (2") |
Burst Pressure | ≥ 3× working pressure |
Impulse Life | ≥ 400,000 cycles |
Length | Custom |
Color | Black (custom available) |
Inner Tube | Oil-resistant NBR synthetic rubber |
This hydraulic hose is available in multiple sizes and pressure ratings for demanding industrial applications.
Quality Assurance & Global Supply
Send us your specifications - size, length, pressure rating, quantity and destination port. Our sales engineer will respond within 4 business hours with a quotation, datasheet and lead time.
