Hydraulic hoses on excavators, wheel loaders, mining haulers, and marine deck equipment operate under constant pressure cycling, prolonged oil contact, and abrasive outdoor conditions. Failures in these lines lead to unscheduled downtime, hydraulic fluid loss, and potential safety incidents. This High-Pressure Oil-Resistant Hydraulic Hose for Construction Machinery is designed to address those specific failure mechanisms: an oil-resistant inner tube compound, a double-layer steel wire reinforcement, and an abrasion-resistant outer cover. It is manufactured by Hengshui Zhehan Rubber & Plastic Products Co., Ltd., a specialized hydraulic hose producer with in-house compounding, braiding, and pressure-testing capabilities.
The inner tube uses a modified oil-resistant synthetic rubber compound. In laboratory immersion tests with mineral hydraulic oil, diesel, and standard lubricating oils, the material exhibits minimal volume swell and no significant hardening or cracking after extended exposure. Compared to conventional nitrile rubber tubes, oil resistance is improved by approximately 60%, reducing the risk of internal degradation and leakage over the hose's service life.
Under controlled impulse testing at the hose's rated working pressure, the product has withstood 500,000 pressure cycles without leakage, burst, or structural failure. The double-layer high-density steel wire braid is applied with an optimized braid angle to minimize stress concentration during flexing and vibration.
Standard working pressure: 16 MPa to 35 MPa (2,320 psi to 5,076 psi)
Burst pressure: designed to exceed working pressure by a safety factor consistent with industry practice for double-braid hydraulic hose.
This margin accommodates the pressure spikes commonly seen when hydraulic cylinders reach end-of-stroke or when loads shift suddenly.
The High-Pressure Oil-Resistant Hydraulic Hose for Construction Machinery remains functional from -40°C to +100°C (-40°F to +212°F) continuous, with intermittent tolerance up to 120°C (248°F). The compound does not become brittle in cold storage or soften excessively near hot engine compartments.
The outer cover is made from a high-strength, UV-resistant synthetic rubber with a dense surface profile. It resists rock chips, mechanical scuffing, and outdoor weathering in construction and mining environments, helping to prevent premature cover failure.
Excavators, wheel loaders, cranes, and concrete pump trucks. The hose is used between main hydraulic pumps, control valves, cylinders, and rotary actuators where pressure pulsation is continuous.
LHD (load-haul-dump) machines, crushers, and drill rigs operating in dust-heavy, high-impact environments. Hose failure in these applications results in high downtime costs, so impulse resistance and cover durability are critical.
Large self-propelled harvesters, high-clearance sprayers, and agricultural loaders with hydraulic systems exposed to wet fields, oil residue, and wide temperature swings.
Deck cranes, hatch covers, and hydraulic power units on vessels and dockside equipment. The hose resists oil immersion and salt-laden humidity.
| Parameter | Details |
| Pressure Rating | 16 MPa – 35 MPa standard; higher custom ratings available |
| Inner Diameter Range | 6 mm – 51 mm, full range customizable |
| Standard Lengths | 20 m and 40 m rolls; custom cut lengths supplied |
| Inner Tube | Modified oil-resistant synthetic rubber |
| Reinforcement | Double-layer high-density steel wire braid |
| Outer Cover | Abrasion, weather, and UV-resistant synthetic rubber |
| Operating Temperature | -40°C to +100°C continuous; 120°C intermittent |
| Media Compatibility | Mineral hydraulic oil, lubricating oil, water-based fluids (not for strong acids or alkalis) |
Do not force the hose into a bend tighter than the specified minimum bend radius. Avoid twisting, stretching, or crushing during routing. Use compatible crimped fittings and torque connections to the fitting manufacturer's recommendation.
Never exceed the rated working pressure. Repeated pressure spikes beyond the rating will shorten service life and may cause premature failure.
The hose is intended for mineral hydraulic oil, lubricating oil, and clean water-based fluids. It is not suitable for strong acids, strong alkalis, or aggressive chemical solvents, which can attack the inner tube and compromise the reinforcement.
Periodically clean the cover to remove oil, mud, and debris that can mask early signs of wear. Inspect for cuts, abrasion, swelling, exposed wire, or fitting leaks. Replace any hose showing visible reinforcement damage.
Store unused hose indoors or under cover, away from direct sunlight, rain, and heavy loads. Keep away from ozone sources such as electric motors. Proper storage prevents premature aging of the rubber cover.
Standard hose samples are provided free of charge for evaluation. The customer covers freight.
Stock sizes: 1 roll. Custom configurations: MOQ depends on design and required tooling.
Inner diameter, length, pressure class, cover color, brand printing, and end fitting configurations can be tailored. Engineering drawings are accepted and reviewed by our technical team.
Every production batch undergoes 100% pressure testing and dimensional inspection before shipment. A 12-month warranty covers material and manufacturing defects under normal use.
Hengshui Zhehan Rubber & Plastic Products Co., Ltd. is a direct manufacturer, not a trading intermediary. The company has produced rubber and plastic fluid transfer products since June 2018. Manufacturing operations are located in Jingxian County, Hebei Province, with:
6 specialized production lines for hydraulic hose, industrial hose, and related assemblies.
Over 120 employees, including 18 engineers and quality-control technicians.
In-house processes from raw material inspection and rubber compounding through steel wire braiding, cover extrusion, and final hydraulic testing.
Documented quality management covering the full production cycle from incoming material to finished goods.
Logistics access near the Beijing-Fuzhou Expressway and Beijing-Shanghai Railway, supporting reliable domestic and export shipping.
The company has supplied hydraulic hoses for construction, mining, agricultural, and marine applications for over 8 years, with products distributed across multiple provinces in China and international markets.
A: The anti-static hose is designed for environments where electrostatic discharge is a fire risk, using a conductive core and a higher burst margin. This oil-resistant hose is optimized for long-term oil immersion and impulse fatigue, with a wider inner diameter range suitable for heavy equipment.
A: Many biodegradable and synthetic hydraulic fluids are compatible, but we recommend sending a fluid specification or sample for confirmation before placing a large order.
A: Yes. Immersion test summaries and impulse test reports can be provided under a non-disclosure agreement for qualified inquiries.
A: Custom production lead time depends on the specified diameter, pressure rating, and fitting configuration. We confirm the schedule during order negotiation. Stock items can ship within a few days after order confirmation.
A: Yes. We deliver to any domestic warehouse or consolidation point. If you need to combine our hose with goods from another supplier, we can arrange for that supplier to deliver to our factory and load everything together.
For a specific hose assembly proposal, a sample, or a detailed technical datasheet, contact our engineering team. We respond within one business day.
Address
No. 7126, Zhanggehou Rubber & Plastic Base, Jingzhou Town, Jing County, Hengshui City, Hebei Province, Chinaa
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