Product Details

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Hydraulic Rubber Hose Assembly

This hydraulic hose assembly is made of high-quality nitrile rubber as the core material, which is highly suitable for the core working conditions of hydraulic transmission and oil transportation of all types of construction machinery with strong performance stability and compatibility. The product has an ultra-wide temperature resistance range and can operate continuously and stably in extreme low and high temperature environments from -40℃ to +120℃. It will not harden, soften, crack or leak due to temperature changes. The working pressure covers the full gradient range from 0.8MPa to 42MPa, meeting various pipeline application requirements such as low-pressure auxiliary oil circuits and high-pressure main oil circuits of construction machinery, with reliable pressure resistance and anti-explosion performance. The overall assembly is processed by precise crimping molding technology, with tight and firm connection between the hose body and joints, excellent sealing performance, pulse fatigue resistance, oil resistance, wear resistance and aging resistance. It is suitable for the harsh working sites of various construction machinery such as excavators, loaders, road rollers and cranes. Featuring easy installation and long service life, it effectively ensures the safe and stable operation of the hydraulic system of construction machinery, reduces shutdown losses caused by pipeline failures, and is a preferred core accessory for supporting maintenance and new replacement of hydraulic pipelines of construction machinery.

Product Description：

Product Core Overview

The working conditions of construction machinery are complex and harsh, and it is exposed to multiple severe tests such as alternating high and low temperatures, high-pressure impact, oil corrosion, outdoor exposure, sand and gravel wear, and high-frequency vibration for a long time. As the core hub of power transmission in the hydraulic system of construction machinery, the hydraulic pipeline’s sealing performance, pressure resistance, temperature resistance and durability directly determine the overall operating efficiency and operational safety of the equipment. This series of hydraulic hose assemblies are specially customized, developed and produced for the construction machinery industry. It adopts high-quality national standard nitrile rubber as the core basic material, integrated with high-strength reinforced structural layers and standardized precision hydraulic joints for integrated processing and molding. Every process from raw material selection, production processing, precision crimping to factory quality inspection strictly follows the industrial production standards for construction machinery hydraulic accessories. It fully meets the all-weather, high-intensity and uninterrupted operation requirements of various construction machinery and equipment, and completely solves the industry pain points of traditional ordinary hoses such as easy oil leakage, bulging, cracking, poor high and low temperature resistance, insufficient pressure resistance and short service life.

Excellent Performance Supported by Core Materials, Suitable for Harsh and Complex Working Conditions

The inner and outer layers of the core hose body are carefully made of high-purity and high-quality nitrile rubber. Nitrile rubber itself has excellent core characteristics of oil resistance, corrosion resistance, wear resistance, aging resistance and deformation resistance. It has excellent chemical tolerance to various transmission media such as hydraulic oil, lubricating oil and mineral oil commonly used in construction machinery, and will not swell, corrode or harden after long-term contact with oil products, keeping the hose structure stable and undeformed all the time. Compared with hydraulic hoses made of ordinary rubber materials, the cold and heat resistance of this nitrile rubber hydraulic hose assembly is greatly upgraded, specially adapted to the ultra-wide working temperature range of -40℃～+120℃. Whether it is the low-temperature construction environment in severe cold outdoors in winter in northern China, or the high-temperature exposure in summer and continuous high-temperature operation in equipment rooms, the hose can maintain good flexibility and structural stability. It will not harden and crack at low temperatures, nor soften and relax at high temperatures, eliminating potential safety hazards such as pipeline leakage, pipe bursting and pipeline falling off caused by extreme temperature changes. At the same time, nitrile rubber material has excellent anti-aging, anti-ultraviolet and anti-ozone erosion capabilities. It can keep the hose body intact after long-term outdoor open-air operation and long-term high-frequency vibration use, effectively extending the overall service life of the product and reducing the cost of frequent replacement and maintenance of equipment pipelines.

Full-gradient Pressure Resistance Coverage, Full-scene Oil Circuit Adaptation

The working pressure of this hydraulic hose assembly accurately covers the full pressure gradient range from 0.8MPa to 42MPa, with complete pressure specifications and strong selection adaptability, perfectly matching the working conditions of different hydraulic circuit systems of construction machinery. The low pressure range of 0.8MPa is suitable for low-pressure transmission scenarios such as control auxiliary oil circuits, lubricating oil circuits and oil return pipelines of construction machinery, with stable operation, no leakage at low pressure and no loose sealing; the medium and high pressure up to 42MPa is accurately suitable for core high-pressure power transmission pipelines such as the main excavation oil circuit of excavators, the lifting oil circuit of loaders, the luffing and lifting oil circuit of cranes, and the compaction drive oil circuit of road rollers. It has super pressure resistance, anti-explosion and high-pressure pulse impact resistance, no bulging, delamination or pipe bursting during long-term high-pressure reciprocating operation. The pressure-bearing structure of the product is optimized by mechanics design, with uniform and reasonable stress on the reinforced layer. It can effectively resist sudden pressure peaks, high-frequency pressure fluctuations and mechanical vibration impact during the operation of construction machinery, with strong pressure-bearing stability, preventing pipeline damage and leakage under high-pressure working conditions, and fully ensuring constant hydraulic system pressure and smooth power transmission.

Integrated Molding with Precision Technology, Firm Sealing and Easy Installation

All hydraulic hose assemblies are integrally processed and manufactured by advanced CNC precision crimping technology. The matching degree between the hose body and hydraulic joints is extremely high, with accurate crimping size and tight occlusion without gaps, completely avoiding common problems such as loose joints, falling off and oil leakage of traditional simply assembled hoses. The joints are finely processed from high-strength alloy steel materials, with anti-rust and anti-corrosion passivation treatment on the surface, anti-rust, anti-wear and not easy to deform during installation. They are compatible with conventional standardized interface specifications of construction machinery, with quick and convenient on-site disassembly and assembly, no complex modification and adaptation required. New installation replacement and maintenance replacement can be completed quickly, greatly reducing equipment shutdown and maintenance time. The overall assembly has good flexibility and reasonable bending radius, suitable for the requirements of narrow installation space and complex pipeline layout of construction machinery equipment. The wiring is regular without bending or folding, which will not affect the hydraulic oil transmission efficiency due to excessive bending of the pipeline, adapting to the compact equipment installation layout of various construction machinery.

Full-domain Application for Construction Machinery, Strict Quality Inspection and Guarantee

This hydraulic hose assembly is specially supporting for the construction machinery industry, widely applicable to the full pipeline systems such as hydraulic power transmission, oil transportation and control braking of various construction machinery and equipment such as excavators, loaders, bulldozers, road rollers, truck cranes, crawler cranes, mixer trucks, graders and pavers. Before leaving the factory, all products have passed a number of strict quality inspection processes such as pressure burst test, high and low temperature cycle aging test, sealing leakage test and pulse fatigue test. Each assembly is qualified before leaving the factory, with reliable quality and stable performance. It can work stably in high-intensity harsh working scenarios such as outdoor mining, infrastructure earthwork construction, road engineering construction and long-term continuous operation on construction sites, effectively ensuring the efficient operation of the hydraulic system of construction machinery, reducing the frequency of pipeline failures, reducing equipment operation and maintenance costs, and building a solid core pipeline safety line for the long-term stable operation of construction machinery.

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