Medium pressure hydraulic hose is generally used in medium pressure fluid delivery system, and its working pressure range is 6.3-10 MPa (Some small-diameter hydraulic hoses can reach 30 MPa), such as EN 857, EN 853 hydraulic hose, SEA 100 R16, SAE 100 R17. Medium pressure hydraulic hose is suitable for industrial machinery, metallurgical equipment, aerospace equipment, automobiles and robots.
The reinforcement layer of medium pressure hydraulic hose is usually one or two layers of steel wire braid, and the inner and outer rubber layers are generally made of high-strength materials such as polyester rubber, polyether rubber or polyurethane, which has good wear resistance, oil resistance and high temperature resistance.
The classification of pressure ratings is crucial for the correct selection and use of hydraulic hoses. Choosing a hose with a pressure rating that is too low may lead to hose rupture, causing hydraulic system malfunctions or even safety accidents; choosing a pressure rating that is too high will increase costs and result in unnecessary waste.
Medium Pressure Hydraulic Hose Product Features
Basic Specifications:
Inside Diameter: 3/16″ to 2″
Working Pressure: Up to 32Mpa
Burst Pressure: Typically more than four times the working pressure, up to 100Mpa
Certification: Complies with ISO 9001 quality management system and meets international standards such as SAE, DIN, and EN.
Temperature Range: -40°F to 212°F (-40℃-100℃)
Suitable Working Conditions: Suitable for hydraulic systems requiring medium working pressure.
Wear and Aging Resistance: Made with high-quality synthetic rubber materials, the hose surface has excellent wear resistance and aging resistance.
Customizable Production: Size, length, and working pressure can be customized, and the outer cover can be smooth or fabric-textured. However, the minimum order quantity is 1000m, and larger orders will receive greater discounts.
Oil and Corrosion Resistance: The oil-resistant synthetic rubber inner lining can effectively transport hydraulic oil, mineral oil, lubricating oil, and other media.
Strong Temperature Adaptability: It has a wide operating temperature range, typically suitable for environments from -40°C to +100°C, ensuring stable operation in high or low-temperature environments.
Medium Pressure Hydraulic Hose Application
Medium-pressure hydraulic hoses typically feature single or double-layer steel wire braiding reinforcement and are suitable for systems with working pressures generally ranging from 10 MPa to 30 MPa (100 bar to 300 bar). Their main applications include control lines in construction machinery (such as medium-sized excavators, forklifts, and cranes), agricultural machinery (seeders, harvesters), industrial automation production lines, hydraulic tools, mining hydraulic return lines, and the conveyance of mineral oil or water-based hydraulic fluids. They are often used in conjunction with high-pressure hydraulic hoses in heavy equipment.
applications of medium-pressure hydraulic hoses
- Construction machinery: Hydraulic oil circuit connections for excavators, loaders, and forklifts
- Agricultural machinery: Hydraulic control systems for tractors, harvesters, and spraying equipment
- Construction equipment: Hydraulic transmission for lifting platforms and concrete equipment
- Mining equipment: Drilling rigs, crushers, and mining transportation equipment
- Automotive industry: Dump trucks, truck-mounted cranes, and hydraulic tail lift systems
- Industrial equipment: Hydraulic presses, injection molding machines, and automated production lines
Pressure Hydraulic Hose FAQS
1. What are the differences between medium-pressure and high-pressure hydraulic hoses?
The main differences lie in the working pressure rating, reinforcement layer structure, and application scenarios.
Medium-pressure hoses typically use single or double-layer steel wire braiding and are suitable for conventional hydraulic circuits; high-pressure hoses generally use a four-layer steel wire spiral structure, which can withstand higher pressure and stronger pulses, and are used in higher pressure and more demanding working conditions.
2. Are medium-pressure hydraulic hoses suitable for continuous operation?
Yes, as long as they are within the rated working pressure and temperature range, medium-pressure hydraulic hoses can be used in hydraulic systems for long-term continuous operation.
3. What is the difference between working pressure and burst pressure?
Working pressure: The maximum pressure at which the hose can operate safely for an extended period. Burst pressure: The maximum pressure the hose can withstand before rupturing. Typically, the burst pressure of a hydraulic hose is ≥ 4 times the working pressure.
4. What media can medium-pressure hydraulic hoses convey?
Common media include:
Hydraulic oil
Mineral oil
Lubricating oil
Water-based hydraulic fluid
(Depending on the inner tube material)
5. What types of fittings can be used with medium-pressure hydraulic hoses?
They can be used with common hydraulic fittings, such as:
Threaded fittings
Quick-release couplings
Flange fittings
Provided that the specifications and pressure ratings match.
6. When should hydraulic hoses be replaced?
They should be replaced immediately if any of the following conditions occur:
- Surface cracking or bulging
- Significant wear or exposed steel wires
- Leakage at the fittings
- The hose becomes noticeably hard or deformed
- The system makes unusual noises or experiences abnormal vibrations