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As an indispensable part of the hydraulic system, hydraulic hoses  play a key role in transmitting liquid. The working principle of hydraulic hoses depends not only on the performance of the lining material but also greatly benefits from the design of the reinforcement layer. The role of the reinforcement layer is to enhance the pressure resistance, impact resistance, and anti-twisting and bending characteristics of hydraulic hoses. This article will discuss in detail the types of reinforcement layers of hydraulic hoses and analyze their applicability in different application environments.

1. Basic structure of hydraulic hoses

Before discussing the reinforcement layer, we first need to understand the basic structure of hydraulic hoses. Hydraulic hoses usually consist of the following parts:

Lining layer: The lining layer is the part of the hydraulic hose that is in direct contact with the transmission medium. Its main function is to ensure that the liquid is not contaminated during circulation and has corrosion resistance. Commonly used lining materials include rubber, polyurethane, and polyvinyl chloride.

Reinforcement layer: The reinforcement layer is located between the inner lining and the outer protective layer of the hose and is one of the most important components of the hydraulic hose. Its main function is to enhance the strength and pressure resistance of the hose.

Outer protective layer: The outer protective layer is used to protect the hydraulic hose from external environmental damage, such as friction, ultraviolet rays, chemicals, etc. It is usually made of wear-resistant rubber, polyurethane, and other materials.

2. The role of the reinforcement layer of the hydraulic hose

The reinforcement layer of the hydraulic hose is the key part of its pressure and mechanical load. The main functions of the reinforcement layer include:

Improve the pressure resistance of the hose: The liquid transmitted in the hydraulic system usually generates higher pressure. The reinforcement layer can help the hose resist high-pressure impact, thereby preventing the hose from breaking.

Resistance to mechanical damage: The reinforcement layer can effectively protect the hose from external collision, friction, and other physical damage, and extend its service life.

Improve flexibility and bending performance: Hydraulic hoses usually need to bend within a certain space. The design of the reinforcement layer can ensure that the hose is not damaged when bending, and keep the system running stably.

Prevent hose expansion: Hydraulic hoses may expand under high pressure. The reinforcement layer prevents the expansion phenomenon by strengthening the structure of the hose.

Enhance corrosion resistance and weather resistance: Some reinforcement layer designs can improve the chemical resistance of the hose and adapt to the working requirements in harsh environments.

3. Types of reinforcement layers of hydraulic hoses

There are many types of reinforcement layers for hydraulic hoses. Common reinforcement layer types mainly include steel wire braided layer, steel wire spiral layer, synthetic fiber reinforcement layer, and other composite material reinforcement layers. The following is a detailed introduction to these common reinforcement layer types.

Wire braided reinforcement layer

The wire-braided reinforcement layer is the most common reinforcement method for hydraulic hoses. It is made of multiple interwoven metal steel wires, which can effectively provide strong tensile strength and pressure resistance.

Features:

High tensile strength: The design of the wire braided layer enables the hose to withstand large tensile forces and external force impacts, especially suitable for high-pressure environments.

Good flexibility: Although the wire braided layer enhances the strength of the hose, it can still maintain good flexibility and is suitable for hydraulic systems that require a certain degree of bending.

Wear resistance: The wire braided layer also has strong wear resistance and can be used in harsh working environments.

Application: The wire braided reinforcement layer is suitable for medium-pressure and high-pressure hydraulic systems, especially in the fields of automobiles, agricultural machinery, engineering equipment, etc.

Wire spiral reinforcement layer

The wire spiral reinforcement layer is made of multiple steel wires tightly wound on the outer layer of the hose in a spiral manner, with stronger tensile strength and higher pressure resistance.

Features:

Ultra-high pressure resistance: Compared with the wire braided layer, the wire spiral layer provides stronger pressure resistance and is suitable for ultra-high pressure hydraulic environments.

Poor flexibility: Due to the rigid design of the steel wire spiral layer, the steel wire spiral reinforced hose is not as flexible as the steel wire braided layer.

Strong high temperature and chemical resistance: The steel wire spiral layer can be compatible with harsh environments such as high temperature, high pressure, and chemical corrosion, and has strong adaptability.

Application: Hydraulic hoses with steel wire spiral reinforcement are usually used in large machinery and equipment, mining equipment, oil extraction, and shipbuilding industries that require extremely high-pressure resistance and impact resistance.

Synthetic fiber reinforcement layer

The synthetic fiber reinforcement layer is usually made of high-strength fiber materials such as polyester, nylon, or polypropylene. Hydraulic hoses with synthetic fiber reinforcement are lighter and have good wear resistance.

Features:

Lightweight: The synthetic fiber-reinforced layer hose is lighter than the steel wire-reinforced layer and is suitable for use in applications where weight reduction is required.

Lower pressure resistance: Although the synthetic fiber reinforcement layer provides sufficient tensile strength, its pressure resistance is usually not as good as the steel wire reinforcement layer.

Good chemical corrosion resistance: Synthetic fiber materials have strong chemical corrosion resistance and are suitable for the transmission of a variety of liquids and chemicals.

Application: Hydraulic hoses with synthetic fiber reinforcement are often used in low to medium-pressure hydraulic systems, especially in light machinery, agricultural equipment, and chemical transmission.

Composite reinforcement layer

A composite reinforcement layer is formed by compounding multiple reinforcement materials (such as metal and synthetic fiber) to form a reinforced structure with excellent performance. This type of reinforcement layer combines the advantages of metal and non-metallic materials to provide higher performance.

Features:

High strength and high durability: Composite reinforcement layers usually have higher tensile strength and durability than single materials.

Good corrosion resistance and high-temperature resistance: Composite reinforcement layers can provide better performance in extreme environments.

Complex manufacturing process: The manufacturing process of composite materials is relatively complex, so its cost is relatively high.

Application: Hydraulic hoses with composite reinforcement layers are suitable for hydraulic systems that require extremely high performance, such as high-end industries such as aerospace, military industry, and oil and gas exploration.

4. Considerations for choosing the right reinforcement layer

When choosing a hydraulic hose, the type of reinforcement layer is a crucial determining factor. The following are several main factors to consider when choosing the right reinforcement layer:

Working pressure: Choose the right reinforcement layer according to the working pressure of the hydraulic system. If the system has a high working pressure, it is necessary to select a high-pressure-resistant reinforcement layer such as a steel wire spiral layer or a steel wire braid layer.

Flexibility requirements: If the hydraulic hose needs to bend and move frequently, it is more appropriate to select a steel wire braid layer or a synthetic fiber reinforcement layer with better flexibility.

Use environment: In harsh working environments, such as high temperature, high humidity, corrosive chemicals, or oil and gas environments, it is crucial to select a reinforcement layer with excellent corrosion resistance and high-temperature resistance.

Durability and safety: Hydraulic hoses need to maintain stability during long-term use, so the durability and safety of the reinforcement layer an important considerations.

The type of reinforcement layer of a hydraulic hose has a direct impact on its performance and application range. Different types of reinforcement layers provide different strength, flexibility, pressure resistance, and corrosion resistance. When choosing a hydraulic hose, understanding the characteristics and applicability of various reinforcement layers can help us make the best choice based on specific working conditions and usage requirements. By correctly selecting the type of reinforcement layer, the stability and safety of the hydraulic system can be effectively improved, the service life of the hose can be extended, and the overall performance of the system can be improved.

As a professional hydraulic hose dealer, we are well aware of the importance of hydraulic hoses in the industrial field. We provide a variety of hydraulic hose reinforcement layers, including wire braided reinforcement layers, wire spiral reinforcement layers, and fiber reinforcement layers, to meet the needs of different customers. Our products are reliable in quality and stable in performance and are widely used in engineering machinery, metallurgy, mining, construction, and other industries. Whether you need to withstand high pressure, high temperature ,or harsh environment, we can provide you with the most suitable hydraulic hose solution.

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Zaozhuang Tianyi Industry Co., Ltd.,

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