Construction
This hose consists of an inner tube of oil synthetic rubber,a single fiber braid reinforcement ,an oil and weather resistant rubber cover.
Applications
Suitable for conveying hydraulic fluids such as glycol,mineral oil,lubrcation,emulsion,hydrocarbons etc, water and air. Can not be used for conveying phosphate ester groups.
Working Temperattuer
From -40℃ up to +100℃,the conveying medium temperature can be 0℃ to 70℃ if it is water.
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The EN856-4SH is a heavy-duty high pressure steel wire spiral hose engineered to dominate the most demanding hydraulic applications. As a premium product from LEAD-FLEX, this hose combines maximum strength, durability, and reliability, making it indispensable for heavy machinery and high-pressure systems. Its inner tube, crafted from top-grade oil synthetic rubber, ensures superior fluid compatibility and resistance to chemical degradation. Reinforced with four or six layers of steel wire spiral—tightly wound for exceptional strength—the hose handles extreme pressures, while the outer cover—oil and weather resistant rubber—provides robust protection against abrasion, environmental factors, and leaks. From construction and mining to industrial systems, the EN856-4SH hydraulic spiral hose delivers uncompromising performance in harsh conditions.

The EN856-4SH hose’s standout feature is its ability to handle extreme pressures, thanks to multi-layer steel wire spiral reinforcement. Four or six tightly wound steel wire layers distribute pressure evenly, preventing bursts and ensuring reliable fluid transfer in high-pressure systems. This makes it ideal for heavy-duty applications where other hoses fail.
Built to last, the EN856-4SH high pressure hose features a rugged design. The oil synthetic rubber inner tube resists swelling, cracking, and fluid degradation, even with prolonged use. The steel wire spiral reinforcement enhances structural integrity, reducing kinking or bursting risks. The weather resistant outer cover shields against UV rays, moisture, and chemicals, making it suitable for the toughest environments.
Compatible with glycol, mineral oil, lubricants, emulsions, and hydrocarbons, this hydraulic spiral hose eliminates the need for specialized hoses. It is not suitable for phosphate ester groups, ensuring users avoid incompatible fluids to maintain performance and lifespan.
Designed to operate in a wide temperature range, the EN856-4SH performs reliably in freezing cold and extreme heat. It maintains flexibility and sealing properties, preventing leaks and ensuring consistent fluid transfer—ideal for machinery in harsh climates or demanding work environments.
The EN856-4SH hydraulic spiral hose is critical for excavators, bulldozers, cranes, and loaders. These machines rely on high-pressure hydraulics for lifting, digging, and hauling, and the hose’s pressure handling and durability ensure efficient, safe operation on job sites.
In mining and quarries, the hose is used in mining trucks, drilling equipment, and conveyors. It withstands extreme pressures, abrasion, and harsh chemicals, minimizing downtime from hose failure in demanding mining environments.
Large-scale industrial systems—manufacturing plants, power generation, steel mills—benefit from the hose’s high-pressure performance and durability. It handles high pressures and temperatures, reducing maintenance costs for hydraulic presses and metal forming equipment.
Heavy agricultural equipment equipment—large tractors, combines, irrigation systems—relies on the hose’s reliability. Its weather resistance and durability withstand outdoor farm conditions, while high-pressure capabilities power heavy-duty attachments like plows and harvesters.
It comes with four or six layers of steel wire spiral reinforcement, depending on the model. Multi-layer design provides exceptional strength for heavy-duty high-pressure applications.
No, incompatible with phosphate ester groups. These fluids degrade the hose material, leading to leaks and premature failure. Use glycol, mineral oil, lubricants, emulsions, or hydrocarbons.
Its rugged construction—multi-layer steel wire spiral and abrasion-resistant outer cover—withstands extreme pressures, chemicals, and abrasion in mining environments. Weather resistance ensures performance in outdoor sites.
Yes, designed to operate in a wide temperature range, including high-heat industrial environments. The oil synthetic rubber inner tube and steel wire spiral maintain integrity, preventing leaks.
Route without excessive kinking or bending beyond recommended radius. Use compatible fittings for secure connections. Avoid sharp edges or abrasive surfaces. Inspect regularly for wear and replace if damaged.
The EN856-4SH high pressure steel wire spiral hose features a four or six-layer design. The inner tube is oil synthetic rubber for fluid compatibility and resistance. The reinforcement layer is multi-layer steel wire spiral, wound tightly for maximum strength and pressure capacity. The outer cover is rubber engineered for oil resistance, weather resistance, and abrasion resistance, offering comprehensive protection.
Materials are selected for broad fluid compatibility—glycol, mineral oil, lubricants, emulsions, hydrocarbons. The oil synthetic rubber inner tube prevents contamination, while corrosion-resistant steel wire spiral ensures long-term performance. Avoid phosphate ester groups to prevent premature failure.
Meeting EN856-4SH standards, the hose operates in a wide temperature range, maintaining flexibility in extreme conditions. The multi-layer steel wire spiral allows it to withstand extremely high pressures, making it suitable for heavy-duty hydraulic systems.
Product Series | Nominal Diameter | Size | ID (mm) | W.D (mm) | OD (mm) | W.P | B.P | Min.B.R | W.T | |||
mm | inch | min | max | min | max | min | max | Mpa | Mpa | mm | Kg/m | |
4SH- 12 - 19 | 19 | 3/4" | 18.6 | 19.8 | 27.6 | 29.2 | 31.4 | 33 | 42.0 | 168.0 | 280 | 1.64 |
4SH- 16-25 | 25 | 1” | 25.0 | 26.4 | 34.4 | 36.0 | 37.5 | 39.9 | 38.0 | 152.0 | 340 | 2.12 |
4SH-20-31.5 | 32 | 1 -1/4" | 31.4 | 33.0 | 40.9 | 42.9 | 43.9 | 47.1 | 32.5 | 130.0 | 460 | 2.77 |
4SH-20-31.5T | 32 | 1 -1/4" | 31.4 | 33.0 | 40.9 | 42.9 | 43.9 | 47.1 | 35.0 | 140.0 | 460 | 2.77 |
4SH-24 -38 | 38 | 1 -1/2” | 37.7 | 39.3 | 47.8 | 49.8 | 51.9 | 55.1 | 29.0 | 116.0 | 560 | 3.77 |
4SH-32-51 | 51 | 2" | 50.4 | 52 | 62.2 | 64.2 | 66.5 | 69.7 | 25.0 | 100.0 | 700 | 5.06 |