In industrial hydraulic systems, high-pressure hydraulic hoses are crucial components ensuring stable equipment operation. As a global leading hydraulic hose supplier, LETONE's EN856-4SH High-Pressure Steel Wire Spiral Hydraulic Hose, featuring four alternating layers of steel wire spiral structure, outstanding pressure resistance and wide adaptability, has become the preferred solution for high-pressure working conditions in agricultural machinery, construction engineering, mining equipment, etc., perfectly complying with EN856 international standards and providing safe and reliable fluid transmission guarantee for various hydraulic systems.
I. Core Structure Analysis of EN856-4SH High-Pressure Steel Wire Spiral Hydraulic Hose
The EN856-4SH hydraulic hose adopts a three-layer composite structure design, with each layer working synergistically to ensure stable performance under ultra-high pressure conditions, fully meeting the requirements of EN856 international hydraulic hose standards.
1. Inner Tube: Oil-Resistant and Corrosion-Resistant Transmission Foundation
Made of high-quality oil-resistant synthetic rubber (usually NBR nitrile rubber), it has excellent resistance to mineral oil, synthetic oil, water-glycol and oil-water emulsions, effectively preventing hydraulic medium penetration, ensuring clean fluid transmission, with a working temperature range of -40°C to +100°C (up to +125°C with special formula).
2. Reinforcement Layer: Pressure-Resistant Core with Four Alternating Steel Wire Spirals
The core reinforcement structure consists of four alternating layers of high-strength, high-tensile steel wire spiral winding. This design enables the hose to withstand a working pressure of up to 420 bar (6090 PSI) and a burst pressure of 1680 bar, while maintaining good flexibility, effectively resisting pulse pressure impact and extending service life.
3. Outer Cover: Wear-Resistant and Aging-Resistant Protective Barrier
The outer layer is made of wear-resistant, ozone-resistant and weather-resistant synthetic rubber, which can resist mechanical wear, ultraviolet radiation and chemical corrosion under harsh working conditions, protect the internal structure from damage, adapt to various complex indoor and outdoor environments, and improve the overall durability of the hose.
II. Core Advantages of EN856-4SH Hydraulic Hose: Performance Guarantee for Ultra-High Pressure Working Conditions
LETONE EN856-4SH hydraulic hose demonstrates six core advantages with its unique design and high-quality materials, far exceeding the performance standards of ordinary hydraulic hoses.
1. Ultra-High Pressure Resistance, Adapting to Extreme Working Conditions
With a rated working pressure of up to 420 bar (6090 PSI) and a burst pressure four times the working pressure, it can easily meet the needs of ultra-high pressure hydraulic systems such as construction machinery and mining equipment, maintaining stable performance in pulse pressure environments and eliminating the risk of high-pressure leakage.
2. Excellent Flexibility, Convenient Installation and Maintenance
Compared with the rigidity limitation of steel pipes, the EN856-4SH hose has excellent flexibility, can adapt to complex pipeline layouts, be easily installed in narrow spaces without complex angle adjustment and heavy installation equipment, greatly reducing construction difficulty and time cost.
3. Wear Resistance and Fatigue Resistance, Longer Service Life
The four-layer steel wire spiral structure combined with the wear-resistant outer cover makes the hose have excellent tensile, impact and fatigue resistance, can resist hydraulic system vibration, mechanical friction and medium erosion, with a service life more than 50% longer than ordinary hoses, reducing replacement frequency and downtime losses.
4. Medium Compatibility, Adapting to Diverse Applications
It can adapt to various hydraulic media such as mineral oil, synthetic oil, oil-water emulsions, water-glycol, etc., and is also compatible with biodegradable hydraulic oils (limited by additives), but not suitable for phosphate ester-based hydraulic oils, widely adapting to the needs of hydraulic systems in different industries.
5. International Standards, Global Universal Adaptability
Strictly manufactured in accordance with EN856 international hydraulic hose standards, it can be seamlessly connected with various global hydraulic fittings and manifold systems, suitable for the matching of hydraulic equipment in the EU and international markets without additional adaptation adjustments, reducing procurement and application costs.
6. Safe and Reliable, Reducing Operational Risks
The fully sealed structure design eliminates the risk of medium leakage, the wear-resistant outer material effectively prevents accidental damage, and the four-layer steel wire spiral provides double safety guarantee, maintaining structural stability under extreme working conditions, reducing the risk of hydraulic system failure from the equipment level, and ensuring the safety of personnel and equipment.
III. Typical Application Scenarios of EN856-4SH Hydraulic Hose
With its outstanding performance, LETONE EN856-4SH high-pressure steel wire spiral hydraulic hose is widely used in ultra-high pressure hydraulic systems in various industries, becoming a core component of key equipment.
1. Agricultural Machinery Field
Suitable for hydraulic systems of agricultural machinery such as tractors, combine harvesters, and large-scale sprinkler irrigation equipment, it can withstand frequent vibration and pressure fluctuations during agricultural machinery operations, ensure stable operation of hydraulic steering, lifting and other functions, and adapt to complex working conditions in fields.
2. Construction Engineering Machinery
Used in high-pressure hydraulic circuits of construction machinery such as excavators, loaders, cranes, and concrete pump trucks, it transmits hydraulic power to actuators, adapts to harsh construction site environments, ensures efficient equipment operation, and improves construction efficiency.
3. Mining and Metallurgical Equipment
Suitable for ultra-high pressure hydraulic systems of mining machinery and metallurgical equipment, it can resist extreme working conditions such as dust, high temperature, and heavy load, ensure stable operation of hydraulic crushing, conveying and other equipment, reduce fault downtime, and improve production efficiency.
4. Industrial Hydraulic Systems
Applicable to high-pressure hydraulic circuits of industrial equipment such as injection molding machines, presses, and CNC machine tools, providing precise and stable hydraulic power transmission, ensuring equipment processing accuracy and production continuity, and adapting to the strict requirements of industrial production.
IV. LETONE EN856-4SH Hydraulic Hose: Quality Assurance and Global Services
LETONE EN856-4SH high-pressure steel wire spiral hydraulic hose is manufactured with modern production equipment and a strict quality control system. Each hose undergoes pressure testing, leakage testing and wear testing to ensure compliance with international standards and customer requirements. LETONE provides a full range of EN856-4SH hose specifications (from DN6 to DN51), as well as customized solutions and global technical support, offering customers full-process services from selection, installation to maintenance, helping various hydraulic systems operate safely and efficiently.
V. Conclusion
LETONE EN856-4SH high-pressure steel wire spiral hydraulic hose, with its four alternating layers of steel wire spiral structure, 420 bar ultra-high pressure resistance and wide adaptability, has become an ideal choice for ultra-high pressure hydraulic systems. Whether in agricultural machinery, construction engineering or industrial production, this hose can provide safe and reliable fluid transmission guarantee, reduce operational costs and improve equipment efficiency. Choosing LETONE EN856-4SH hydraulic hose means choosing a high-quality and highly reliable hydraulic system solution.
