DIN EN856/DIN20023 4SH
| Quantity: | |
|---|---|
Our DIN EN856 4SH high pressure steel wire spiral hydraulic hose, manufactured to strict DIN20023 industry specifications, is purpose-built for ultra-high pressure, impulse-heavy hydraulic applications that demand uncompromising durability and long-term operational reliability. This heavy-duty hydraulic hose features a robust four-layer construction: a seamless oil-resistant synthetic rubber inner tube, four alternating high-tensile steel wire spiral reinforcement layers, and a heavy-duty synthetic rubber cover engineered for exceptional oil, abrasion, and weather resistance. With a consistent operating temperature range from -40℃ up to +121℃, it maintains stable performance in harsh thermal and environmental conditions, and is optimized for petroleum-based hydraulic fluids. Designed for heavy-duty equipment manufacturers, mining machinery operators, off-highway vehicle builders, and hydrostatic drive system integrators, it addresses the core challenge of withstanding extreme pressure fluctuations and continuous heavy loads in the most demanding industrial environments.
 Fiber weaving |  Steel wire winding |  Wire braiding machine |
 Friction testing machine |  High-speed joint venture |  Storehouse |
The flagship performance advantage of our 4SH spiral hydraulic hose is its four-layer high-tensile steel wire spiral reinforcement, which delivers exceptional resistance to hydraulic impulse, pressure surges, and continuous ultra-high pressure operation. With working pressures up to 420 bar (6090 PSI) for the 3/4" size, and a consistent 4:1 burst pressure to working pressure safety ratio across all available diameters, this hose outperforms standard braided hoses in high-stress, pulse-heavy applications. The spiral winding structure distributes pressure evenly across the hose body, minimizing fatigue during repeated pressure cycles and extending service life in continuous heavy-duty operation.
Engineered to withstand harsh industrial and outdoor conditions, this DIN20023 standard hydraulic hose uses premium synthetic rubber compounds for both inner tube and outer cover. The inner tube delivers exceptional resistance to petroleum-based hydraulic fluids, preventing degradation and leakage over long-term use, while the outer cover resists abrasion from rough surfaces, UV exposure, and extreme weather, making it ideal for outdoor mining, construction, and off-highway applications. This robust material construction ensures reliable performance even in the most unforgiving operating environments.
We offer full engineering customization for our ultra high pressure hydraulic hose for heavy duty applications, with adjustable sizing, length, reinforcement layer details, and performance parameters to meet unique project requirements. All customizations maintain full compliance with DIN EN856, DIN20023, and global industry standards including GB, RMA, AS, JIS, and SABS, ensuring seamless integration into heavy-duty hydraulic systems across international markets and regulatory environments.
This ultra-heavy-duty spiral hydraulic hose is purpose-built for applications that demand extreme pressure capacity and superior impulse resistance. Primary use cases include mining and extraction equipment, such as large off-road dump trucks, hydraulic excavators, and rock breakers, where continuous high pressure and frequent pressure surges are standard operating conditions. It is also the industry standard for heavy off-highway construction machinery, including large bulldozers, track-mounted excavators, and heavy loaders, as well as hydrostatic drive systems for heavy industrial vehicles and equipment. Additional applications include marine deck machinery, offshore platform hydraulic systems, and large industrial hydraulic presses, where uncompromising pressure performance and long-term reliability are critical to safe and efficient operations.
Inside Diameter | Reinforcement Diameter | Outside Diameter | Working Pressure | Proof Pressure | Burst Pressure | Min. Bend Radius | Weight | ||
inch | mm | mm | mm | psi | bar | bar | bar | mm | kg/m |
3/4 | 18.6-19.8 | 28.3-29.1 | 31.7-32.5 | 6090 | 420 | 1000 | 1680 | 280 | 1.7 |
1 | 25.0-26.4 | 35.4-36.2 | 39.2-40.0 | 5510 | 380 | 910 | 1520 | 340 | 2.5 |
1-1/4 | 31.4-33.0 | 42.2-43.0 | 46.3-47.1 | 4713 | 325 | 830 | 1300 | 460 | 3 |
1-1/2 | 37.7-39.3 | 49.0-49.8 | 54.2-55.0 | 4205 | 290 | 700 | 1160 | 560 | 3.6 |
2 | 50.4-52 | 63.4-64.2 | 68.5-69.3 | 3625 | 250 | 700 | 1000 | 700 | 5 |
