Whether in underground or open-pit mining operations, standard hydraulic hoses often fail at the worst possible moments: they may burst under high pressure, suffer outer-layer abrasion from contact with rock, or begin leaking after a very short service life. Such failures not only slow down production and drive up maintenance costs but also pose safety risks that mines simply cannot afford to tolerate.
Hengshui Zhehan’s high-pressure hydraulic hoses for mining equipment uses a multi-layer high-tensile steel wire spiral structure and a tough, weather-resistant rubber compound. It is built to handle the pressure, abrasion, and temperature swings found in real mine conditions, solving the problems of leaks, blowouts, and short service life at the source. Before you place your next hose order, reach out to our team — we’ll help you select a hose assembly that matches your machines, your working pressure, and your site conditions. Get a tailored quote and keep your hydraulic systems running reliably.
This high-pressure hydraulic hoses for mining equipment is engineered specifically for heavy-duty hydraulic equipment in mining — longwall supports, roadheaders, drilling jumbos, loaders, and haul trucks. It targets the four things that matter most underground and on the bench: high pressure with a solid safety margin, abrasion resistance that keeps the cover intact against rock contact, stable performance through temperature swings, and an extended service life that reduces the frequency of hose change-outs. By replacing inferior hoses with this purpose-built design, mines can cut hydraulic system failures, reduce unplanned downtime, and keep continuous production on track. Strict manufacturing and quality control standards also help prevent the equipment damage and safety incidents that come from burst or leaking hoses, keeping operating costs predictable and workplace risks lower.
Used on hydraulic roof supports, armored face conveyors, and roadheaders. Handles high working pressures, heavy dust, humidity, and mildly corrosive mine water. Reliable power transmission keeps roof support and cutting operations moving safely.
Fitted to drill rigs, load-haul-dump machines, and underground trucks. The hose withstands rock chip impingement, high-frequency vibration, and the continuous demand of drilling and mucking cycles.
Hydraulic lines on excavators, crushers, and crawler equipment. Built to endure wide temperature swings, direct sun exposure, wind-blown grit, and constant mechanical wear from the pit environment.
Used on ground support installations, slope stabilization equipment, ore conveying auxiliaries, and long runs where hoses are routed through tunnels and along benches. The hose’s flexibility helps with difficult routing without kinking.
The multi-layer steel wire spiral reinforcement provides a working pressure range of 16–45 MPa, with a burst pressure that substantially exceeds industry norms for this class. Compared with ordinary mining hose, pressure capacity is improved by more than 25%, eliminating burst and bubble failures under high-pressure operating conditions.
The hose is tested according to ISO 6803 impulse standards and is rated for more than one million impulse cycles. Even under frequent start-stop operation and pressure spikes, it resists leakage and delamination. Service life is typically 2 to 3 times longer than general-purpose mining hose, significantly cutting replacement frequency.
The inner tube uses a modified nitrile rubber that resists hydraulic oil, prevents fluid permeation, and handles the mild chemical conditions found underground. The outer cover is compounded to resist ore abrasion, acid and alkali contact, aging, and moisture. This reduces the rate of hose wall damage from dust, wet conditions, and corrosive agents.
The hose structure is optimized so that the bend radius is about 34% smaller than the ISO 18752 industry standard for similar hoses. Excellent flexibility allows routing through the tight spaces found on mining machinery, around multiple corners, without flattening or blocking flow. Installation is straightforward and does not compromise hydraulic transmission efficiency.
A precision one-piece forming process and high-tolerance matched fittings give the hose assembly excellent sealing integrity. This eliminates oil leakage and pressure loss. The hose is also flame-resistant and anti-static, meeting relevant mining safety standards, which adds a critical layer of protection for equipment operating in potentially hazardous atmospheres.
|
Parameter |
Detail |
|
Working Pressure |
16 MPa – 45 MPa (custom higher ratings available) |
|
Inner Diameter |
10 mm – 51 mm (full range; custom sizes) |
|
Standard Length |
1 m – 20 m per piece (non-standard cut lengths available) |
|
Construction |
Inner tube: modified nitrile rubber; Reinforcement: high-strength galvanized steel wire spiral; Cover: weather-resistant synthetic rubber |
|
Temperature Range |
-40 °C to +120 °C, with stable performance without noticeable degradation at extremes |
When installing the hose, never stretch, twist, or kink it. Keep the routing within the specified bend radius. Ensure couplings are precisely tightened and fully seated — loose or misaligned fittings can blow off under pressure.
Never operate above the rated pressure or temperature. Working outside the limits risks hose failure and serious safety incidents.
Inspect the hose regularly for cover damage, reinforcement exposure, and fitting leaks. Clean off accumulated ore dust and debris. Avoid prolonged rubbing against rock surfaces, direct sun exposure, or submersion in corrosive media.
After shutdown, relieve system pressure. Do not run over or stack heavy objects on the hose, as this can deform the rubber and damage the steel wire layers. Proper handling and storage directly translate into longer hose life.
Store hoses in a dry, ventilated area free of corrosive atmospheres. Avoid long-term exposure to high heat or extreme cold. During transport, protect the outer cover from sharp objects and hard impacts.
Q: Is this hose suitable for underground coal mining where flame resistance is required?
A: Yes. The hose is flame-resistant and anti-static, designed to meet relevant mining safety standards. This makes it suitable for underground applications where these properties are a must. Just confirm with us that the specific pressure and diameter combination you need carries the necessary certifications for your region.
Q: What is the minimum order quantity?
A: There is no strict minimum for standard stock sizes. You can order small quantities for trials or individual machine repairs. We also support large-volume orders for mine-wide hose replacement programs and distributor stock. Just tell us what you need.
Q: Can you supply complete hose assemblies with end fittings?
A: Yes. We can build assemblies with metric, BSP, JIC, flanges, or custom adapters to match your equipment. Provide your connection details and we’ll supply ready-to-install hose assemblies.
Q: What warranty do you provide?
A: We provide a 2-year warranty against manufacturing defects under normal mining operating conditions. If a quality issue occurs, we will replace the hose at no charge.
Q: How many impulse cycles has this hose been tested to?
A: The high-pressure hydraulic hoses for mining equipment is rated for over one million impulse cycles according to ISO 6803. This is a key reason it lasts significantly longer than standard mining hose under the pulsating loads seen on equipment like shearers, jumbos, and LHDs.
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No. 7126, Zhanggehou Rubber & Plastic Base, Jingzhou Town, Jing County, Hengshui City, Hebei Province, Chinaa
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