Conventional hydraulic hoses often suffer from issues such as premature aging at high temperatures, leakage under high pressure, and failure during heavy-duty operations; frequent replacements drive up equipment maintenance costs and losses due to downtime.
Hengshui Zhehan’s High Temperature and High Pressure Hydraulic Hoses feature a multi-layer steel-wire-wound composite structure and specialized heat-resistant rubber materials. Engineered to excel in demanding industrial environments, they provide a reliable solution to pipeline failures associated with high-pressure and high-temperature operations.
Please contact us anytime for customized specifications or bulk orders of our high-quality, heat- and pressure-resistant hydraulic hoses to receive a tailored solution and price quote.
Construction & heavy machinery: Excavators, cranes, wheel loaders: withstands engine‑bay heat, vibrations, and shock loads during outdoor earthmoving operations.
Steel mills & metallurgy: Continuous casters, rolling mills: resists radiant heat, scale dust, and occasional contact with hot metal splashes, preventing outer‑layer cracking and inner tube degradation.
Mining & underground equipment: Roof supports, jumbo drills: survives damp, dusty, and confined spaces with high‑pressure impulse cycles, while the reinforced spiral layers resist burst even when hoses are dragged against rock faces.
Petrochemical & oilfield: Wellhead control panels, chemical injection systems: compatible with mineral oils and many synthetic fluids, maintaining sealing integrity under fluctuating downhole temperatures and pressures.
Special nitrile‑based inner tube formulation keeps elasticity and sealing force from –40 °C to 121 °C, with short‑term tolerance up to 150 °C. No excessive softening or brittle failure across seasonal or process temperature swings.
Four layers of high‑tensile steel wire spiral (not braid) provide working pressure of 42 MPa and burst pressure ≥160 MPa. Passed 500,000 impulse cycles without leakage or deformation – well above ISO 18752 requirements.
The weather‑resistant outer cover resists UV, ozone, oil mist, and common industrial chemicals; it remains flexible and crack‑free even after prolonged outdoor or mill‑floor service, extending replacement intervals by 60 %.
Manufactured with a seamless, uniform wall thickness, the hose mates perfectly with standard crimped or reusable fittings. It holds steady pressure without swelling or weeping at connection points, reducing the risk of pressure drops.
Thicker cover and intermediate layers provide extra margin against cutting, scraping, and tensile stress, making it suitable for equipment with tight bend radii or frequent articulation.
|
Parameter |
Value |
|
Working pressure |
42 MPa (burst ≥160 MPa) |
|
Inner diameter range |
6 mm – 51 mm (custom sizes available) |
|
Standard length |
20 m per piece; cut-to-length optional |
|
Material construction |
Inner: oil-resistant synthetic rubber; reinforcement: four layers of high-strength steel wire spiral; cover: weather-resistant synthetic rubber |
|
Temperature range |
–40 °C to +121 °C (peak 150 °C for short durations) |
Always route the hose with a bending radius not less than the recommended minimum; avoid twisting or kinking, which can distort the spiral reinforcement. Use proper fittings and torque them to the specified tightness – loose connections invite leakage, while over‑tightening may damage the coupling.
Never exceed the rated working pressure or temperature, and do not use with incompatible fluids (e.g., strong acids, steam, or solvents) unless specifically approved by our technical team. For extreme chemical exposure, we can customise the inner tube material.
Visually check the cover for cuts, chafing, or blistering every 200 operating hours. Pay special attention to areas near heat sources or moving parts. Replace immediately if you notice local hardening, soft spots, or fitting movement.
When not in use, release system pressure and store hoses in a cool, dry place away from direct sunlight and ozone sources (electric motors, welding equipment). Coil them loosely to avoid permanent set.
Q: What is the minimum order quantity? Do you accept small trial orders?
A: We do not enforce a strict MOQ for standard sizes – you can order as little as 20 metres for trial purposes. For custom lengths, diameters, or special compounds, we typically produce in batches starting from 100 metres, but we are happy to accommodate smaller pilot runs upon discussion.
Q: Can you customise the hose for my specific machine?
A: Absolutely. We offer OEM/ODM services including custom inner diameters, overall lengths, fitting pre‑assembly, colour‑coding, and logo printing on the cover. Just provide your equipment drawing or performance requirements, and our engineers will design a solution that fits your mounting space and duty cycle.
Q: How long is the warranty, and what does it cover?
A: Every hose is 100 % pressure‑tested and seal‑checked before shipment. We provide a 12‑month warranty against material or workmanship defects. If a hose fails under normal operating conditions within that period, we will replace it or repair it at no cost (excluding misuse or improper installation). We also offer failure analysis support to help you prevent recurrence.
Q: How do I select the right pressure grade and size for my system?
A: Our technical sales team can guide you based on your maximum system pressure, flow rate, and hose length. We recommend choosing a hose with working pressure at least 20 % higher than your normal operating pressure to accommodate surges. Send us your circuit parameters, and we will provide a selection sheet with safety margins.
Q: What is your typical lead time for bulk orders?
A: For standard sizes in stock, we can dispatch within 3–5 days. For custom orders, lead time is usually 10–15 days depending on quantity and complexity. We also offer expedited production for urgent requirements – just let us know your deadline.
Q: Do you provide free samples for evaluation?
A: Yes, we offer sample lengths (up to 5 metres) at no charge for serious prospects; you only pay the shipping cost. This allows you to test the hose under your actual operating conditions before committing to larger volumes.
Hengshui Zhehan Rubber & Plastic Products Co., Ltd. – a trusted manufacturer with over 10 years of hydraulic hose R&D and production experience. We maintain ample stock of popular sizes and offer competitive factory‑direct pricing. Our team provides free selection advice, on‑site factory visits, and after‑sales technical support. Call, email, or fill out our inquiry form to discuss your requirements, request a quotation, or schedule a plant tour. We are ready to help you keep your hydraulic systems running safely and productively.
Address
No. 7126, Zhanggehou Rubber & Plastic Base, Jingzhou Town, Jing County, Hengshui City, Hebei Province, Chinaa
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