In hydraulic systems of construction machinery, mining equipment and hydraulic machinery, hoses serve as the "flexible arteries" connecting pumps, valves and actuators. They are also among the components operating under the harshest working conditions and most prone to failure. Whether a hose can withstand frequent pressure shocks and fit routing in confined spaces directly affects the uptime and operational safety of the whole machine.
1. Ultra-high Pressure Capacity with Ample Safety Margin
Constructed with multi-layer high-tensile steel wire spiral / braided reinforcement, this hose reaches a working pressure rating up to 42 MPa (approx. 6000 psi). Its burst pressure is no less than 4 times the working pressure. It complies with major standards including EN 856 4SP / 4SH and ISO 18752, reserving sufficient safety margin for system pressure peaks and accidental shocks.
2. Million-cycle Pulse Resistance for Reliable Service Life
The high-pressure hose passes the 1,000,000-cycle pulse test. It maintains structural stability under high-frequency alternating loads, greatly reducing the risk of hose rupture and unplanned downtime. It is especially suitable for high dynamic-load applications such as excavators and concrete pump trucks.
3. Small Minimum Bend Radius for Flexible Routing
By optimizing the reinforcement structure and spiral angle, the hose achieves a smaller bend radius and more compact outer diameter at the same pressure rating. It enables easy routing inside tight engine compartments and complex piping layouts, reducing rigid pipe joints and transition fittings to cut down potential leakage points.
4. Abrasion & Weather Resistance, Wide Temperature Range
The outer rubber cover is made of oil-resistant, ozone-resistant and abrasion-resistant synthetic rubber. Flame-retardant cover options are available for harsh environments such as mines and tunnels. Its operating temperature ranges from -40℃ to +120℃, reliably supporting cold start and continuous high-temperature operation.
Application Fields
Construction machinery including excavators, loaders and bulldozers; hydraulic supports and tunneling equipment for coal mines; industrial hydraulic machines such as hydraulic presses, injection molding machines and die-casting machines; as well as agricultural machinery, sanitation equipment and marine deck machinery.
