Kaiyue Rubber (Jingxian): Delivering High-Quality Rubber & Silicone Products for Industrial & Daily Applications Worldwide.
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Engineered to satisfy dual international specifications, this hydraulic hose meets both SAE 100 R3 and EN 854 requirements, ensuring universal interchangeability across diverse equipment platforms. Furthermore, the synthetic rubber cover is formulated to achieve MSHA mining safety certification, delivering exceptional flame resistance and anti-static properties for underground extraction environments. When handling the hose, the uniform wall thickness and smooth inner texture become immediately apparent, guaranteeing zero flow restriction. Each production batch undergoes rigorous pressure and burst evaluations to maintain dimensional accuracy, allowing it to interface perfectly with standard fittings and drastically reduce assembly failure rates in demanding fluid transmission systems.
Unlike standard single-braided alternatives, this low-pressure fluid conduit is constructed with two distinct layers of closely woven, high-strength polyester yarn. This specialized textile reinforcement provides exceptional kink resistance while maintaining a highly flexible profile. Beyond standard static pressure evaluations, every production lot is subjected to strict dynamic pulse testing. This critical quality control measure verifies the hose's structural integrity and outstanding fatigue life, proving its capability to withstand continuous pressure fluctuations, mechanical vibrations, and frequent bending cycles without premature degradation or inner tube delamination.
Formulated for severe operating conditions, the hose maintains stable performance characteristics across a thermal span of -40°C to 100°C. The premium NBR (Nitrile Butadiene Rubber) inner tube exhibits superior resistance to swelling and chemical degradation. It is fully compatible not only with petroleum-based hydraulic fluids and water-glycol emulsions but also safely accommodates low-pressure pneumatic air systems, greatly expanding its application scope. Externally, the cover features a distinctive matte finish that provides excellent tactile grip while offering formidable defense against ozone exposure, UV weathering, and physical abrasion during long-term outdoor deployment.
Designed specifically to optimize installation efficiency, this lightweight hose incorporates a highly advantageous no-skiving (non-skive) design. Assembly technicians can crimp metal fittings directly onto the hose ends without the need to peel or shave off the outer rubber cover. This specific processing capability drastically reduces preparation time, minimizes manual labor costs, and eliminates the risk of accidentally damaging the textile reinforcement layers during cutting. Its inherent flexibility further reduces mechanical stress on connectors and simplifies routing through the narrow, confined spaces typical of modern machinery chassis.
Backed by decades of specialized manufacturing expertise, our facility operates under strict ISO-certified management protocols, controlling every variable from raw material compounding to final vulcanization. We actively welcome on-site factory inspections from procurement teams to verify our advanced extrusion lines and testing laboratories. By maintaining a highly organized supply chain, we offer stable, large-volume production capacities and end-to-end global logistics support. This ensures that equipment manufacturers and regional distributors receive consistent product performance, predictable delivery schedules, and highly competitive factory-direct pricing.
Selecting the correct dimensional specifications is critical for maintaining fluid system integrity and preventing operational downtime. The following technical data sheet outlines the precise measurements and pressure ratings for our textile-braided low-pressure hoses. Each metric, from the inner diameter (ID) to the minimum bend radius, is strictly controlled during the extrusion process to ensure absolute consistency. Engineers and procurement specialists can rely on these exact figures to calculate flow rates, determine spatial routing requirements, and select compatible crimp fittings. The optimized weight-per-meter ratio is specifically engineered to reduce the overall structural load on moving machinery parts while maintaining uncompromising burst resistance.
Size | Inner Diameter (ID) | Outer Diameter (OD) | Working Pressure | Burst Pressure Min. | Min. Bend Radius | Weight per meter |
1/4" | 6.3 mm | 16.0 mm | 10.0 MPa | 40.0 MPa | 65 mm | 0.20 kg/m |
3/8" | 9.5 mm | 19.0 mm | 8.0 MPa | 32.0 MPa | 90 mm | 0.26 kg/m |
1/2" | 12.7 mm | 22.2 mm | 6.3 MPa | 25.0 MPa | 120 mm | 0.32 kg/m |
5/8" | 15.9 mm | 26.0 mm | 5.0 MPa | 20.0 MPa | 150 mm | 0.40 kg/m |
3/4" | 19.0 mm | 29.0 mm | 4.0 MPa | 16.0 MPa | 180 mm | 0.48 kg/m |
1" | 25.4 mm | 36.5 mm | 2.5 MPa | 10.0 MPa | 250 mm | 0.65 kg/m |
In the demanding environment of earthmoving and excavation, this hose serves as a critical component for excavators, heavy loaders, and bulldozers. It is specifically deployed for low-pressure oil circuits, fluid return lines, and sensitive pilot control mechanisms. The abrasion-resistant cover easily withstands the friction caused by dirt, gravel, and continuous mechanical vibration, ensuring stable transmission of hydraulic oil over extended operational shifts without unexpected ruptures.
Modern farming requires equipment that can endure seasonal temperature extremes and constant exposure to the elements. This hose is perfectly suited for tractors, combine harvesters, chemical sprayers, and automated irrigation machinery. It efficiently delivers lubrication oil and low-pressure hydraulic fluid to moving parts. Its exceptional flexibility allows it to adapt to the frequent bending and chassis articulation required during field operations, while actively resisting degradation from UV sunlight, moisture, and agricultural chemicals.
Within factory settings, reliable fluid routing is essential for continuous manufacturing processes. Applied in CNC lathes, milling machines, heavy-duty injection molding machines, and automated packaging equipment, our hose reliably serves centralized lubrication systems, cooling circuits, and low-pressure transmission lines. The oil-resistant NBR tube prevents internal swelling even when constantly exposed to synthetic machine oils, ensuring consistent pressure performance and preventing costly production halts.
Warehousing and logistics machinery operate in tight, confined spaces requiring highly maneuverable components. This product is widely specified for forklifts, pallet stackers, aerial work platforms, and compact lifting devices. It supports low-pressure hydraulic control valves and oil return manifolds. The lightweight construction and tight minimum bend radius make installation significantly easier within the restricted chassis spaces of material handling equipment, reducing strain on hydraulic pump connections.
Commercial transit and specialized engineering vehicles rely on auxiliary fluid systems to maintain road safety and operational functionality. This hose is frequently utilized in commercial trucks, municipal sweepers, and engineering vehicles for power steering return circuits, chassis lubrication lines, and general low-pressure fluid transmission. It performs exceptionally well across a wide temperature spectrum, maintaining its structural flexibility and long service life despite constant engine bay heat and severe road vibration.
To maximize the operational lifespan and ensure the safety of your fluid transmission systems, proper handling and installation of the SAE 100 R3 hydraulic hose are essential. Following structured assembly procedures minimizes the risk of system contamination, premature wear, and unexpected pressure drops. Please adhere to the following operational guidelines:
Pre-Installation Inspection: Before assembly, visually inspect the hose cover for any signs of transit damage and verify that the inner tube is free of dust or debris. Ensure the selected hose diameter and pressure rating strictly match your system's operational requirements.
No-Skive Assembly Process: Utilize a clean, sharp cutting tool to ensure a perfectly perpendicular edge. Because this is a no-skive hose, do not peel the outer rubber layer. Insert the fitting directly into the hose end and crimp according to the precise diameter specifications provided by the fitting manufacturer.
Routing and Installation: Route the hose to avoid sharp, abrasive edges or proximity to extreme heat sources like exhaust manifolds. Ensure the installation path does not force the hose to bend beyond its specified minimum bend radius, and avoid twisting the hose along its longitudinal axis during tightening.
System Testing & Maintenance: Once securely installed, gradually pressurize the hydraulic or pneumatic system to inspect for micro-leaks around the crimped joints. Implement a routine maintenance schedule to check for cover abrasion, stiffness, or localized bulging, replacing the assembly immediately if structural fatigue is detected.
Our hose is engineered with a highly versatile NBR (Nitrile) inner tube, making it fully compatible with a wide spectrum of media. It safely conveys petroleum-based hydraulic oils, water-glycol emulsions, synthetic lubricants, and mineral oils without internal swelling. Additionally, its robust construction allows it to be utilized safely in low-pressure pneumatic air systems, providing excellent versatility across various industrial applications.
The hose is formulated to operate stably and continuously within a thermal range of -40°C to +100°C. The specialized rubber compound ensures that the hose remains pliable and flexible in freezing conditions, preventing brittle fractures. Conversely, in high-temperature working environments, the material resists accelerated thermal aging, cracking, and structural deformation, ensuring a long, predictable service life.
No, this specific model is expressly designed for low-pressure applications, with maximum working pressures ranging from 2.5 MPa to 10.0 MPa depending on the diameter. It is ideal for fluid return lines, pilot controls, and lubrication circuits. For heavy-duty, high-pressure applications such as main hydraulic drive lines, we manufacture and supply custom steel-wire braided or spiraled reinforced hoses tailored to withstand extreme pressure spikes.
We maintain highly flexible production lines, accepting small minimum order quantities for standard dimensional sizes. Because we keep extensive inventory, standard orders are prepared for fast dispatch, while large-scale mass production is typically completed within 7 to 15 days. To protect the product during global transit, we offer multiple standard packaging options, including heavy-duty plastic film wrapping, woven bags, and durable corrugated cartons. We also fully support OEM custom packaging and branded labeling to meet specific regional distribution and warehousing requirements.
Absolutely. We are committed to ensuring our clients achieve optimal system performance. We provide comprehensive, free PDF installation guides, material safety data sheets, and detailed operation instructions. Upon request, we can also supply instructional assembly videos demonstrating the proper no-skive crimping technique. Our dedicated engineering team is always available to offer professional recommendations regarding fluid compatibility, routing design, and preventative maintenance strategies.
