4SP High Pressure Hydraulic Hoses: Reliable Service For Severe Pulse Working Conditions
Oct 28, 2026| Heavy machinery in mining, oilfield and quarrying constantly faces sharp pressure surges and cyclic pulse loads. Ordinary braided hydraulic hoses often fail prematurely under such intense impacts. 4SP high pressure hydraulic hoses are engineered to handle extreme pulse and high-pressure demands.
Why Choose 4SP Hydraulic Hoses?
Superior pulse fatigue resistance: Designed for frequent pressure spikes in heavy-duty hydraulic circuits.
Higher working pressure rating: Four layers of spiral steel wire deliver stronger bearing capacity than braided types.
Good structural stability: Resist shape deformation under long-duration heavy load operation.
Wide compatibility: Match mineral oil and many common hydraulic media for mobile heavy equipment.
Core Construction & Performance
Constructed with oil-resistant NBR inner tube, four high-tensile spiral steel wire reinforcement layers and abrasion-resistant outer rubber cover. The structure follows EN 856 standard, balancing pressure resistance, bending property and anti-fatigue performance.
Typical Application Scenarios
Commonly fitted on rock drills, heavy load excavators, hydraulic breakers, oilfield machinery and other high-impact hydraulic equipment.
Explore our full range of 4SP hydraulic hose solutions on hh-rubberhose.com.