The global industrial landscape is currently witnessing an unprecedented surge in demand for high-pressure hydraulic systems, where the EN 856 4SH hydraulic hose plays a pivotal role. As a cornerstone of heavy-duty machinery, 4SH hoses are specifically designed to withstand extreme pressure and rigorous operating conditions. From the sprawling open-pit mines of Australia to the complex infrastructure projects in Southeast Asia, these four-layer steel wire spiral reinforced hoses are the lifeblood of modern mechanical engineering.
Industry reports suggest that the global hydraulic hose market is projected to reach billions of dollars by 2030, with the 4SH variant leading the growth in the "Extra High Pressure" segment. This is driven by the expansion of the construction, mining, and oil & gas industries, which require components that can ensure zero downtime and maximum safety. As a leading 4SH hydraulic hose exporter, we provide solutions that are not just compliant with international standards but are engineered to exceed them.
Featuring four layers of high-tensile steel wire spiral reinforcement, providing unparalleled resistance to pressure surges and flexing fatigue.
Efficient supply chain management ensuring rapid delivery to Europe, North America, and emerging markets in Africa and South America.
Outer covers are formulated with abrasion, ozone, and weather-resistant synthetic rubber to withstand the harshest environmental conditions.
Procurement departments worldwide are shifting their focus from "lowest initial cost" to "total cost of ownership" (TCO). In the context of 4SH hydraulic hoses, this means a growing demand for products that offer extended service life and reduced maintenance intervals. The industry is trending towards "Smart Hydraulics"—integrating hoses with sensors to monitor pressure spikes and wear in real-time.
International buyers, particularly in highly regulated markets like Germany, Canada, and Japan, are increasingly prioritizing ISO 9001 and IRIS certified manufacturers. They require transparency in the raw material sourcing—ensuring the high-tensile steel wire and synthetic rubber compounds meet stringent chemical safety and performance benchmarks. Our factory addresses these needs by utilizing state-of-the-art Italian equipment and Austrian sealing technology, ensuring every meter of hose is a masterpiece of engineering.
Founded in 1996, Shaanxi Kelong New Materials Technology Co., Ltd. has evolved from the Xianyang Kelong Rubber Products Institute into a global powerhouse of hydraulic technology. We are a technological innovation company integrating R&D, production, and sales, concentrating on hydraulic seal sets, high-pressure hoses, and coal mine auxiliary transportation equipment.
With a workforce of over 500 employees, our production base for hydraulic hoses adopts a complete set of equipment imported from Italy, and our sealing products utilize Austrian DMH technology. We currently hold a significant market share in China and are rapidly expanding our footprint as a premier 4SH hydraulic hose exporter.
The "Made in China" label has transitioned into a hallmark of high-tech manufacturing excellence. At Kelong, we combine competitive pricing with world-class quality control. Here is why global companies choose us:
Furthermore, our location in China allows for flexible logistics and a deep understanding of the diverse needs of different regional markets, from the high-temperature deserts of the Middle East to the sub-zero temperatures of Nordic construction sites.
Crafted from oil-resistant synthetic rubber (typically NBR), designed to carry hydraulic fluids without degradation or leakage over thousands of hours of operation.
The "4SH" designation refers to four layers of high-tensile steel wire spiral winding. Unlike braided hoses, spiral hoses provide better stability under high-pressure pulses.
A specialized synthetic rubber layer that protects the internal steel from moisture, oxidation, and mechanical abrasion, ensuring a long lifecycle in the field.
When selecting a 4SH hydraulic hose company, technical parameters such as Working Pressure (WP), Burst Pressure (BP), and Minimum Bend Radius are critical. Our 4SH hoses typically support working pressures ranging from 250 bar to 420 bar depending on the diameter, with a safety factor of 4:1. This ensures that even in the event of a sudden system malfunction, the hose maintains its integrity, protecting both the machinery and the operators.
Kelong New Materials
