What is the Advantage and Disadvantage of china four wire spiral hydraulic hose

Different applications demand hoses with specific characteristics, such as flexibility, pressure resistance, and durability. The right hose not only improves the performance of the equipment but also prevents potential failures, reduces downtime, and minimizes maintenance costs. With various types of hoses available, understanding their differences is critical to making the best choice for a given application.

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Understanding Hydraulic Hose Construction

Hydraulic hoses are composed of three primary layers: the inner tube, reinforcement layers, and the outer cover. Each layer plays a vital role in the hose’s overall performance, durability, and suitability for specific applications.

Inner Tube

The inner tube of a hydraulic hose is responsible for containing and transporting the hydraulic fluid within the system. It is typically made from synthetic rubber, thermoplastics, or PTFE (Polytetrafluoroethylene), each material offering distinct advantages. Synthetic rubber is commonly used due to its flexibility and compatibility with various hydraulic fluids. Thermoplastic inner tubes, on the other hand, provide excellent chemical resistance and are often chosen for applications requiring high-pressure performance. PTFE is highly resistant to chemicals and extreme temperatures, making it ideal for specialized applications. The choice of inner tube material is critical as it directly affects the hose’s compatibility with the fluid, resistance to permeation, and overall service life.

Reinforcement Layers

The reinforcement layer is the backbone of the hydraulic hose, providing it with the strength needed to withstand high internal pressures. This layer can consist of braided or spiral wound wire, typically made from high-tensile steel. Braided wire reinforcement is commonly used in 2-wire hoses, offering flexibility and adequate strength for moderate-pressure applications. The braiding process involves intertwining steel wires around the hose, which helps maintain the hose’s flexibility while providing sufficient pressure resistance.

In contrast, spiral wound wire reinforcement, found in 4-wire hoses, involves wrapping multiple layers of steel wire around the hose in a helical pattern. This construction provides superior strength, making spiral-reinforced hoses ideal for high-pressure and heavy-duty applications. The spiral reinforcement also offers enhanced resistance to hose deformation under pressure, ensuring a more consistent performance over time.

Outer Cover

The outer cover of a hydraulic hose serves as a protective layer, shielding the inner components from external damage. This cover is typically made from synthetic rubber or thermoplastics, designed to resist abrasion, chemicals, and environmental factors such as UV radiation and ozone. The durability of the outer cover is crucial in preventing damage from physical wear and tear, exposure to harsh conditions, and contact with other surfaces. A robust outer cover ensures the hose can withstand the rigors of its working environment, thereby extending its service life and maintaining the integrity of the hydraulic system.

Introduction to Wire Reinforcement

1. Explanation of Wire Reinforcement in Hydraulic Hoses

Wire reinforcement involves the use of steel wires embedded within the hose structure to provide mechanical strength. The number of wire layers and the method of reinforcement—whether braided or spiral—determine the hose’s ability to withstand internal pressures and external forces. Reinforcement also helps prevent the hose from expanding under pressure, maintaining its shape and ensuring efficient fluid flow.

2. Differences Between Braided and Spiral Reinforcement

Braided wire reinforcement consists of one or two layers of steel wire woven in a crisscross pattern around the hose. This method provides a balance of flexibility and strength, making it suitable for applications where moderate pressure and maneuverability are required. Braided hoses are generally lighter and more flexible, which is advantageous in applications where space is limited or where the hose needs to navigate around obstacles.

Spiral reinforcement, on the other hand, involves wrapping multiple layers of wire in a spiral configuration around the hose. This construction offers superior strength, enabling the hose to handle much higher pressures than braided hoses. Spiral hoses are typically used in heavy-duty applications where maximum pressure resistance and durability are paramount, such as in construction equipment or high-pressure hydraulic systems.

3. The Impact of Wire Layers on Hose Performance

The number of wire layers directly impacts the hose’s performance characteristics, including its pressure rating, flexibility, and durability. A hose with more wire layers, such as a 4-wire hose, can handle higher pressures and provide greater resistance to kinking and deformation. However, this comes at the cost of reduced flexibility compared to a 2-wire hose. The choice between a 2-wire and 4-wire hose should be based on the specific demands of the application, balancing the need for pressure resistance with the requirement for flexibility and maneuverability.

2-Wire Hydraulic Hoses

Detailed Breakdown of the Construction of 2-wire Hydraulic Hoses

2-wire hydraulic hoses are among the most commonly used types in various industries, valued for their balance of performance, flexibility, and cost-effectiveness. The construction of a 2-wire hydraulic hose consists of several key components, each contributing to its overall functionality and suitability for specific applications.

Inner Tube: The inner tube of a 2-wire hose is typically made from synthetic rubber, such as nitrile (NBR) or chlorinated polyethylene (CPE). This inner layer is responsible for containing the hydraulic fluid, ensuring that it flows smoothly through the hose without leakage. The material of the inner tube is selected based on its compatibility with the hydraulic fluids it will carry, its resistance to permeation, and its flexibility.

Reinforcement Layers: The defining characteristic of a 2-wire hydraulic hose is its two layers of steel wire reinforcement. These layers are made from high-tensile steel wire, braided in a crisscross pattern around the inner tube. The first layer is wrapped directly over the inner tube, followed by a second layer that is braided over the first. This double-braided structure provides the hose with the necessary strength to withstand moderate to high pressures while maintaining flexibility.

Outer Cover: The outer cover of a 2-wire hose is made from synthetic rubber, typically designed to resist abrasion, weathering, and exposure to chemicals. This protective layer is crucial for ensuring the hose’s durability and longevity, especially in environments where it may be exposed to harsh conditions.

The Number of Wire Layers and Their Arrangement

The two layers of wire reinforcement in a 2-wire hose are arranged in a braided pattern. This braiding technique involves intertwining the steel wires in a specific configuration, which not only provides strength but also allows the hose to remain flexible. The braided structure ensures that the hose can bend and flex without compromising its pressure-bearing capabilities, making it suitable for applications where both strength and maneuverability are required.

The arrangement of the wire layers also contributes to the hose’s resistance to kinking and deformation under pressure. Unlike spiral-wound hoses, which are more rigid, the braided construction of a 2-wire hose allows for greater flexibility, making it easier to install in tight spaces or where the hose needs to navigate around obstacles.

Pressure Rating and Performance

2-wire hydraulic hoses are designed to handle moderate to high-pressure applications, with pressure ratings typically ranging from to PSI (pounds per square inch), depending on the specific hose and its size. The pressure capacity of a 2-wire hose is largely determined by the strength and quality of its wire reinforcement layers, as well as the material used for the inner tube and outer cover.

While 2-wire hoses can handle a wide range of pressures, they are generally best suited for applications where the pressure requirements do not exceed the upper limits of their design. It’s important to match the hose’s pressure rating with the system’s operating pressure to ensure safe and efficient operation. Overloading a 2-wire hose beyond its rated capacity can lead to premature failure, leaks, or bursts, compromising the safety and reliability of the hydraulic system.

Suitable Applications and Industries

2-wire hydraulic hoses are versatile and are used in a variety of industries and applications where moderate to high pressure is required. Some common uses include:

Agriculture: 2-wire hoses are widely used in agricultural machinery, such as tractors, harvesters, and sprayers. These hoses handle the hydraulic pressure needed to operate various attachments and implements, ensuring reliable performance in the field.

Construction: In the construction industry, 2-wire hoses are used in equipment such as excavators, loaders, and backhoes. They provide the necessary pressure to operate hydraulic systems, including lifting, digging, and other heavy-duty tasks.

Material Handling: Forklifts, cranes, and other material handling equipment often rely on 2-wire hydraulic hoses to power hydraulic lifts and controls. The flexibility and strength of these hoses make them ideal for use in environments where equipment must maneuver in tight spaces.

Advantages of 2-Wire Hoses

Flexibility and Ease of Installation

One of the primary advantages of 2-wire hydraulic hoses is their flexibility. The braided wire reinforcement allows the hose to bend and flex without compromising its strength, making it easier to install in complex systems. This flexibility is particularly beneficial in applications where the hose needs to navigate tight spaces, sharp angles, or where frequent movement is required.

Cost-Effectiveness for Specific Applications

2-wire hoses offer a cost-effective solution for many hydraulic systems, especially in applications where extreme pressure or heavy-duty performance is not required. The balance between performance and cost makes 2-wire hoses an attractive option for industries looking to optimize their budgets without sacrificing reliability.

Scenarios Where 2-Wire Hoses Provide the Best Value

2-wire hydraulic hoses are best suited for applications where moderate pressure and flexibility are key requirements. For example:

Mobile Equipment: In mobile equipment such as tractors, forklifts, and loaders, 2-wire hoses provide the necessary pressure without the need for the more expensive and rigid 4-wire alternatives.

General Industrial Use: For general industrial machinery that operates within the moderate pressure range, 2-wire hoses offer reliable performance at a lower cost, making them ideal for maintaining operational efficiency.

Limitations of 2-Wire Hoses

Restrictions in High-Pressure Environments

While 2-wire hoses are suitable for many applications, they are not designed for extremely high-pressure environments. In situations where pressure exceeds the hose’s rated capacity, a 4-wire or even 6-wire hose may be necessary to ensure safety and performance. Using a 2-wire hose in a high-pressure system can lead to failures, posing risks to both equipment and operators.

Durability Concerns Under Extreme Conditions

In extremely harsh environments, such as those with high abrasion, exposure to chemicals, or extreme temperatures, the durability of 2-wire hoses may be compromised. While the outer cover provides some protection, it may not be sufficient in the most demanding conditions. In such cases, hoses with additional layers of reinforcement or specialized outer covers may be required.

When Not to Use 2-Wire Hoses

2-wire hydraulic hoses should be avoided in applications where:

High Pressure is Constant: Systems that consistently operate at high pressures beyond the capacity of 2-wire hoses should use hoses with higher pressure ratings to avoid failures.

Heavy-Duty Performance is Required: For heavy-duty machinery that requires maximum strength and durability, 4-wire or spiral hoses are a better choice due to their superior reinforcement and pressure capabilities.

Extreme Environmental Conditions: In environments where the hose will be exposed to severe abrasion, chemicals, or extreme temperatures, a more robust hose with enhanced protective features should be used.

4-Wire Hydraulic Hoses

Construction of 4-wire Hydraulic Hoses

4-wire hydraulic hoses are engineered for demanding applications where high pressure and durability are paramount. These hoses are constructed with multiple layers that contribute to their superior strength and resilience.

Inner Tube: The inner tube of a 4-wire hydraulic hose is typically made from synthetic rubber, such as nitrile or neoprene, designed to withstand high pressures and maintain compatibility with a wide range of hydraulic fluids. This inner tube is critical for preventing leaks and ensuring that the fluid flows smoothly through the hose, even under extreme conditions.

Reinforcement Layers: The most distinguishing feature of a 4-wire hydraulic hose is its four layers of high-tensile steel wire reinforcement. These layers are arranged in a spiral configuration around the inner tube. Unlike braided wire, which is crisscrossed, the spiral reinforcement involves wrapping each layer of wire in a helical pattern. This design significantly enhances the hose’s strength and allows it to handle much higher pressures than 2-wire hoses. The spiral arrangement also contributes to the hose’s ability to resist kinking and crushing, which is essential in high-pressure applications.

Outer Cover: The outer cover of a 4-wire hose is made from durable synthetic rubber, often formulated to resist abrasion, weathering, oil, and chemicals. This outer layer protects the hose from external damage, ensuring longevity even in harsh environments. The robust construction of the outer cover is particularly important in applications where the hose is exposed to rough handling or abrasive conditions.

Comparison with 2-Wire Hoses in Terms of Wire Layering and Design

The primary difference between 2-wire and 4-wire hydraulic hoses lies in their reinforcement layers and the resulting pressure-handling capabilities. While 2-wire hoses use two layers of braided steel wire, 4-wire hoses utilize four layers of spiral-wound steel wire.

Reinforcement Method: The braided wire in 2-wire hoses provides flexibility and adequate strength for moderate-pressure applications. In contrast, the spiral-wound wire in 4-wire hoses offers superior strength, making these hoses suitable for high-pressure environments. The spiral design also enhances the hose’s ability to withstand dynamic loads and sudden pressure spikes, which can be critical in certain applications.

Flexibility: Due to the difference in wire arrangement, 2-wire hoses are generally more flexible than 4-wire hoses. The crisscross pattern of the braiding allows for easier bending and maneuverability, while the spiral-wound design of 4-wire hoses, though more rigid, provides greater durability and pressure resistance.

Pressure Rating

4-wire hydraulic hoses are designed to handle significantly higher pressures than their 2-wire counterparts. Pressure ratings for 4-wire hoses typically range from to PSI, depending on the hose’s size and specific construction. This enhanced pressure capacity makes 4-wire hoses ideal for applications where high pressure is a constant requirement, such as in heavy machinery, industrial equipment, and high-performance hydraulic systems.

The additional layers of spiral-wound steel wire reinforcement enable the hose to resist internal pressure more effectively, reducing the risk of hose failure due to bursting or kinking. This makes 4-wire hoses a reliable choice for systems that operate under continuous high pressure or experience frequent pressure spikes.

Applications and Industries

4-wire hydraulic hoses are favored in industries and applications where high pressure, durability, and reliability are critical. Some of the key industries where 4-wire hoses excel include:

Construction: Heavy-duty construction equipment, such as excavators, bulldozers, and cranes, rely on 4-wire hoses to operate hydraulic systems that require high pressure and precision. The hoses’ strength and durability make them ideal for the rugged conditions often encountered in construction sites.

Mining: The mining industry demands equipment that can withstand harsh environments and heavy loads. 4-wire hoses are commonly used in hydraulic systems for mining machinery, including drills, loaders, and conveyors, where high pressure and durability are essential for efficient operation.

Oil and Gas: In the oil and gas industry, hydraulic systems are exposed to extreme pressures and corrosive environments. 4-wire hoses are used in drilling rigs, hydraulic fracturing equipment, and other high-pressure applications where safety and reliability are paramount.

Manufacturing: High-pressure hydraulic systems in manufacturing plants, such as injection molding machines and hydraulic presses, benefit from the enhanced pressure capacity and durability of 4-wire hoses. These hoses ensure consistent performance, reducing downtime and maintenance costs.

Advantages of 4-Wire Hoses

Superior Strength and Durability

The most significant advantage of 4-wire hydraulic hoses is their superior strength and durability. The four layers of spiral-wound steel wire reinforcement provide exceptional resistance to pressure, abrasion, and external damage. This makes 4-wire hoses suitable for the most demanding applications, where failure is not an option. The robust construction of these hoses ensures they can withstand harsh conditions and maintain their performance over extended periods.

Ideal for Heavy-Duty and High-Pressure Applications

4 wire hoses are specifically designed for heavy-duty and high-pressure applications. Their ability to handle extreme pressures without compromising performance makes them indispensable in industries where high-pressure hydraulic systems are the norm. Whether it’s powering heavy machinery in construction, drilling equipment in the oil and gas industry, or hydraulic presses in manufacturing, 4-wire hoses provide the reliability and strength needed for these challenging tasks.

Limitations of 4-Wire Hoses

Reduced Flexibility Compared to 2-Wire Hoses

One of the main limitations of 4-wire hydraulic hoses is their reduced flexibility. The spiral-wound reinforcement, while providing superior strength, also makes the hose more rigid. This can be a disadvantage in applications where tight bending radii or frequent movement are required. In such cases, the rigidity of a 4-wire hose may lead to difficulties in installation or operation, making it less suitable for applications where flexibility is a priority.

Higher Cost and Complexity in Installation

The enhanced construction of 4-wire hoses comes with a higher cost compared to 2-wire hoses. The additional layers of reinforcement and the more complex manufacturing process contribute to this increased cost. Additionally, the rigidity of 4-wire hoses can make them more challenging to install, particularly in systems with limited space or complex routing. The higher cost and installation complexity should be weighed against the application’s pressure requirements and operational demands to determine if a 4-wire hose is the best choice.

Conclusion

Now that you have a comprehensive understanding of the differences between 2-wire and 4-wire hydraulic hoses, it’s time to assess your specific hydraulic needs. Consider the pressure requirements, environmental conditions, and budget constraints of your application to determine which hose is the best fit. If you’re unsure, don’t hesitate to consult with Topa.

FAQ

UGW spiral hydraulic hose comply with ISO, DIN, EN856 and SAE J517 production standard. We provide full series of 4SP, 4SH, R9, R12, R13 and R15.

Spiral hose is more ideal for very high pressure application, with its max pressure resistance to 450Bar and superior impulse cycles @400,000 - 500,000. Ideal stiff hose to carry hydraulic fluids including petroleum based fluids which under specific pressure and temperature, such as crane transportation, mining equipment, agricultural machinery, automatic hydraulic systems, etc.

In UGW factory, we assembly USA Magnatech for wire spiral process. With oil resistance synthetic inner tube and abrasion resistance outer cover, spiral hose is stiff and provide long operation time.

In addition to classical model, UGW have own technical development on Ultra-flex series of 4 wire spiral hose, which show 25% reduced bend radius.

UGW spiral hose product is able to assembly with fitting in custom length, we also provide brand labeling service as per requirement.

Types of Spiral Hydraulic Hose

Advantages of Spiral Hydraulic Hose

✔ Multiple high tensile spiral steel wire reinforce hose to be very high pressure resistance @450Bar.

If you are looking for more details, kindly visit china four wire spiral hydraulic hose.

✔ Technical improve on spiral hose outer rubber, with superior abrasion resistance ability and flame resistance designated by MSHA.

✔ Meet and surpass standard 500,000 impulse cycles.

✔ Upgraded bend radius, make hose be more flexible and easier when install on machinery.

Spiral Hydraulic Hose Applications

4 or 6 wire spiral hydraulic hose is ideal to work under the highest operation pressure 70-120Mpa, and temperature range is -40°C-120°C.

It is mainly used in mining hydraulic support, oil exploration. It also widely serve for engineer construction, crane transport, forging metal application, mining equipment, ship yard, injection molding machine, agricultural machinery, automatic hydraulic systems, to carry hydraulic fluids and petroleum based fluids (e.g mineral oil, soluble oil, mineral ails, fuels, lubrication) water based fluids.

Why Choose UGW as Spiral Hydraulic Hose Supplier

After decades years of hose producing experience and technical upgraded, UGW spiral hose quality level is very stable and leading in China hydraulic industry. Reputation approval by worldwide customers and the market.

In the hose production, UGW purchase high-quality raw materials and equipped with high-end imported production machines, such American Magnatech Spiral machine. Production process follows ISO-, ISO and ISO, and it is supervised by our experienced engineers all the time. During production, we will arrange the quality inspection team to test various factors, ranging from inner and outer hose diameter parameters - to various special performance tests (such as blasting test, pulse test, abrasion, ozone test, leak test, low temperature bending test, etc. )

UGW spiral hydraulic hose comply to ultra-high pressure resistance to 450 Bar and more than 500,000 pulse cycles. The exclusive super-flex series, 4-layer wrapped hose upgrades flexibility and impulse cycles standard up to 1,000,000 times. Designation of MSHA, API, CCS, MA... serve for a wide range of hydraulic fluid and other machinery applications.

UGW provide a full range of spiral hose and fitting accessories in assembly or individually to meet the needs and priorities requirement of different customers. At the moment once we receive your inquiry, your request will be quickly responded by our professional sales team, with efficient solution and technical support, providing details information for your evaluating, such as lead time and delivery details. And when we start the mass production, you would be updated for every important steps and guaranteed by on-time lead time and fast delivery.

What benefits (service) is UGW able to do for different customers？

For the end user customer:

Stable and reliable quality guaranteed by our standard production process, standard quality control process.

Technical support guaranteed by the team of our qualified, experienced and highly-trained hydraulics engineers.

After-sales service guaranteed by our our long-term customer support team.

For the trader:

Stable and reliable quality with competitive offer.

OEM service. We are able to do OEM for you to support your own brand, and we are able to do OEM for your customers as well.

Feasible lead time. We offer you the lead time of 30 days for a 20’ container, 45 days for a 40’ container.

For the retailer:

Small minimum order quantity. We offer you the small minimum order quantities in various hose types and hose sizes, which makes your business more feasible.

OEM Service. We offer free OEM service to build your own brand.

Spiral Hydraulic Hose:The Complete Guide

What is the Steel Wire Spiral Hydraulic Hose?

Steel wire spiral hose is one kinds of hydraulic hose, constructed of 4 or 6 high-tensile steel. This solid hose is designed to meet higher working pressure and higher impulse cycles applications.

What is the Steel Wire Spiral Technique?

Wire spiral technical is one ways of hose wire counterparts. Multiple wire spiral is strong and thicker, able to be better pressure resistance. UGW is using USA Magnatech spiral machine to produce steel wire spiral hose. Details shown as below.

What Types of Steel Spiral Hoses Are?

EN856 4SP/4SH, SAE 100 R13, SAE 100 R15, R12, R9. UGW is supply a complete range of spiral hose, in additional to the standard, we offer own development UA & WA series, 4 wire spiral hose with constant working pressure, tighter bend radius and superior impulse performance.

What is the Structure of Steel Wire Spiral Hose?

Spiral hydaulic hose consists of inner tube, middle rubber layer, four or six spiral wire reinforcements and cover. Inner tube is made of oil resistance sythenic rubber, and outer rubber cover is made of abrasion resistance and flame resistance rubber.

What Are the Application of Steel Wire Spiral Hydraulic Hose?

High-pressure steel wire reinforced hydraulic hose is mainly used for mine hydraulic support, oil field mining, and is suitable for engineering construction, lifting and transportation, metallurgical forging, mining equipment, ships, injection machinery, agricultural machinery, various machine tools and mechanization and automation of various industrial sectors In the hydraulic system, it is used for liquid transmission such as petroleum-based (mineral oil, soluble oil, hydraulic oil, fuel, lubricating oil) and water-based liquid (emulsion, oil-water emulsion, water) with certain pressure (high pressure) and temperature. The pressure can reach 70-100MPa.

What is the Advantage of Steel Wire Spiral Hose?

1. The hose is made of special synthetic rubber with excellent oil resistance, heat resistance and aging resistance.

2. The hose bears a large pressure and has excellent pulse performance;

3. The tube body is tightly combined, soft to use, and small deformation under pressure;

4. The hose has excellent bending resistance and fatigue resistance

What is the Disadvantage of Steel Wire Spiral Hydraulic Hose?

1. The bending radius should not be less than the specified bending radius to prevent the hose frame from being damaged or prematurely damaged due to excessive stretching.

2. According to the conditions of use, correctly select the variety and specification of the hose, and do not use or substitute it incorrectly.

3. When using the hose, the pressure should be balanced and adjusted slowly, so as not to damage the hose due to sudden pressure increase.

Why Do You Need Steel Wire Spiral Hydraulic Hoses?

Spiral hydraulic hose are used in many industries, application and machiney such as mining, oil exploration, carry all kinds of hydraulic fluids oil and other consists of four or six high-tensile wire that exhibits exemplary strength, making the hose very strong but also very rigid. The resistance to pressure spikes is exceptionally high, especially compared to a braided hose.

How Does Spiral Hydraulic Hose Work?

As we know, hydraulic hoses are constructed in layers. The inner tube carries the fluid, and this is usually the one that is the most flexible of the three. Outside the inner tube is a reinforcement layer, which generally has some sort of protective mesh or design to prevent breakage. Finally, there is a protective outer layer, which is usually designed to be weatherproof and heat-resistant. How does the spiral hydraulic hose work? Actually, the basic working principle is the same as hydraulic hose, main is conveyed hydraulic fluid. But the difference is the spiral hydraulic hose consists of two, three, four, or more layers of high tensile steel wire spiral that can add much more strength, to make the hydraulic hose become very strong, with high resistance to high pressure compared with the braided hydraulic hose. The application of the hydraulic hose is what determines how it works. For example, the reinforcement wires in a spiral constructed hydraulic hose remain parallel as they perpendicularly wrap around the hose in layers. You will find spiral wire hoses in heavy duty construction equipment and are designed for their strength and high-impulse applications.

How to Prevent the Spiral Hydraulic Hose Burst?

We know that hydraulic hose burst is a common and important problem in hydraulic work. If it is not dealt with in time, it will lead to bigger problems. So how to prevent the burst of spiral hydraulic hose?

The quality of the hose itself is very important. The most important thing is to choose a quality hose. If hose quality is not qualified, the service life of the hose will be greatly shortened, and it is extremely prone to bursting problems. Then you need to refer to the hose data sheet to select the correct hose to apply to the equipment. If the selected hose does not match, or the assembly is not correct, there will also be a burst problem;

In addition to the quality problems of the hydraulic hose itself, there may also be problems with the hydraulic system itself. For some reasons, such as the preset pressure is too high, the pressure on the hose will be too high, which increases the chance of bursting of the hose. So the hose needs to meet the standard burst factor, and reduce preset pressure to avoid damage and loss of hydraulic hoses. If the working environment of the hose is harsh, such as the hose being exposed to high temperature for a long time or continuous friction, you can also choose a suitable protective cover on the outside of the hose to prevent the hose from bursting.

What is the Pressure Range Difference Between Different Types of Spiral Hydraulic Hose?

The different spiral hose type has different working pressure range. There are two types, variety pressure and constant pressure. Below are detailed pressure ranges.

Variety pressure: 4SP/4SH, rated for maximum working pressures from 16.5 to 45 MPa (2,393 to 6,527 psi);

Constant pressure:

R12 type spiral hydraulic hose, constant max working pressure is 28 Mpa(psi);

R13 type spiral hydraulic hose, constant max working pressure is 35 Mpa(psi);

R15 type spiral hydraulic hose, constant max working pressure is 42 Mpa(psi);

In addition to the above common spiral hydraulic hose type, UGW factory has "WA" and "UA" series constant pressure four-layer spiral hose, which has ultra-high wear resistance and can reach millions of pulses, etc. Contact us if you want to know more detailed product data.

What Pressure Range Can the Spiral Hydraulic Hose Withstand?

For spiral hydraulic hose working pressure range, different type has different working pressure. The usually spiral hydraulic hoses are 4SP/4SH, and available in sizes from ¼ to 3 in, which is rated for maximum working pressures from 16.5 to 45 MPa (2,393 to 6,527 psi);

Then there are 4 layers and 6 layers of constant pressure spiral hose.

R12 type spiral hydraulic hose, size from 3/8 to 1(four layers), constant max working pressure is 28 Mpa(psi);

R13 type spiral hydraulic hose, size from 3/4 to 1(four layers) and 1 1/4 to 2(6 layers), constant max working pressure is 35 Mpa(psi);

R15 type spiral hydraulic hose, size from 1/2 to 1(four layers) and 1 1/4 to 2(6 layers), constant max working pressure is 42 Mpa(psi);

In addition to the above conventional spiral hydraulic hose, UGW factory also has ultra-high constant pressure four-layer spiral hose, which have ultra-high wear resistance and can reach millions of pulses, etc. Contact us if you want to know more detailed product data.

Is the Spiral Hose Better Than the Braid Hose?

First of all, you have to understand the structure of spiral and braid and their respective characteristics before you judge which one is better.

The spiral hose is 4 or 6 layers of steel wire reinforcement, while the braid is one or two layers of steel wire reinforcement. The spiral hydraulic hose is reinforced with the spiral steel wire, the spiral constructed steel reinforcement can remain parallel, wrapping the hydraulic hose firmly, making it solid and not easy to be bent over. It can withstand greater working pressure, but it is relatively rigid, has poor flexibility, and is not easy to operate flexibly;

Compared with one or two layers of steel wire braided reinforcement, due to the braid hose structure, the braided hydraulic hose can provide more flexibility due to its low bend radius with the help of criss-cross braided steel wire physical performance. The braided reinforcement of the hydraulic hose can make it much more flexible for you to locate it for a better hydraulic hose routing and suitable for low to mid-working pressure.

Now you must know how to answer is the spiral hose better than the braided hose? The answer is not sure, each type of hose is different and suitable for different applications, you should choose the appropriate hydraulic tube according to your own application, no one is better, only the right one is the best.

How to Install Spiral Hydraulic Hose?

First of all, it is necessary to select the spiral hydraulic hose of the appropriate length and to ensure that the hydraulic hose after installation maintains a certain degree of slack, neither too tight nor too loose, to avoid tensile stress or wear.

The second is to avoid twisting the assembly and confirm that the assembly is smooth and correct. When installing the spiral hydraulic hose, if it is necessary to bend the hose, the bend radius of the hose cannot be smaller than the minimum bend radius of the hose to avoid a narrow bend radius.

what's more, it is also necessary to avoid contact with objects to prevent unnecessary friction and affect the use of the hose.

What Standards Does the Spiral Hydraulic Hose Implement?

In the hydraulic market, there are different hydraulic hose standards. In the Chinese market, there are Chinese hydraulic hose standards, like GB-, GB/T -, etc. In the international market, there are several different national and international hydraulic hose standards, of which three are common and have been widely recognized, one is the European standard (EN) and the international standard (ISO) and the American standard (SAE). The spiral hydraulic hose also implemented the above standards in the international market. For example, the standards for four-layer spiral hose description are, ISO -1, EN 856, SAE 100 R12...

What Are the Criteria for Selecting the Spiral Hydraulic Hose Supplier?

No matter what role you play in the hydraulics market, it's necessary to stock some good hose suppliers. When you meet the problem with your current supplier, or need to repair/replace a hydraulic hose, a good hose supplier is very important. So how to choose a hydraulic hose supplier? Here are some tips for your reference.

Suppliers Scale

First of all, you need to know hose suppliers' scale. If it is a manufacturer, you need to know the factory area, the number of people, production lines, machinery and equipment, etc.; If it is a trader, you need to know whether there is a stable hose supply.

Quality of hose

The quality of the product itself is the top priority. You should learn the raw materials, the production process, QC, and technical data.

Hose price

Don’t buy based on price alone. The prices of hydraulic hoses can vary dramatically - and it’s not always wise to choose the cheapest option available. When selecting a hydraulic hose, make sure that price isn’t the only factor you consider

Other factors, like delivery time, service...

UGW Spiral Hydraulic Hose Service Questions and Answers:

What is the Minimum order quantity for spiral hydraulic hose in UGW？

UGW spiral hose MOQ is 300mtr for each size.

Does UGW offer free samples for spiral hydraulic hose?

Yes, UGW is able to offer the free samples for spiral hydraulic hose.

Does UGW offer customized service？

Yes, UGW offers customized service as per the customer’s requirements.

What certifications has UGW obtained？

ISO , ISO , ISO , MSHA, RoHS & REACH, etc.

Is UGW a manufacturing factory, or a trader？

UGW is the manufacturer of spiral hydraulic hose, with over 27 years experience in hose production.

Which standards does UGW manufacture the spiral hydraulic hose according to？

SAEJ517, DIN, EN856, ISO, etc.

What is the lead time of spiral hydraulic hose from UGW？

20-30 days for a full 20’ container. 30-40 days for a full 40’ container. Actual situation please check with our sales team

Contact us to discuss your requirements of sae 100r2. Our experienced sales team can help you identify the options that best suit your needs.