Sinocmp supplys different types of hydraulic seals for construction machines and equipment such as excavators, jackhammers, backhoes, and more. Here we introduce different types of hydraulic seals, including their functions to help you choose hydraulic seals. If you need more help, reach out to us!

What Are The Main Functions Of Hydraulic Seals?

Hydraulic seals are employed to seal hydraulic systems and feature a sophisticated arrangement of high-quality seals to ensure effective performance. The primary functions of hydraulic seals are listed below:

1.High Durability and Adaptability:

High Durability: Hydraulic seals possess strong wear resistance and pressure resistance, allowing them to function in harsh working environments for extended periods.

Adaptability: They can adapt to various working conditions, including high temperatures, low temperatures, high pressures, and corrosive environments.

2.Maintain Pressure:

Hydraulic seals help maintain internal system pressure, ensuring that hydraulic equipment can operate normally and perform complex mechanical tasks in high-pressure environments.

3.Prevent Leakage

hydraulic seals prevent the leakage of fluids within the hydraulic system, ensuring efficient operation and preventing the waste of energy and fluids. Besides, hydraulic seals can control the amount of fluid leakage, preventing accidental fluid blowouts and enhancing workplace safety.

4.Block External Contaminants

Hydraulic seals can block dust, dirt, and other external contaminants from entering the system, protecting internal components from wear and damage, thereby extending the lifespan of the equipment.

5.Separate Different Fluids:

In some hydraulic systems, hydraulic seals are used to separate different types of fluids, preventing them from mixing and ensuring the system operates normally.

6.Safe And Waterproof:

Hydraulic seals can prevent internal fluid leakage and block external moisture or other fluids from entering the system, ensuring operational safety and enhancing the waterproof performance of the equipment.

7.Easy Maintenance:

High-quality hydraulic seals are designed to be easy to replace and maintain, reducing maintenance time and costs, and improving the operational efficiency and reliability of the equipment.

Different Types Of Hydraulic Seals

Hydraulic systems offer various types of seals for different applications. The seal type needed depends on the specific application, but all seals share the common goal of establishing a secure and fluid-tight seal. Here are six commonly used seals.

1.Oil Seals

Function: Used to prevent the leakage of lubricants and oils, and to block contaminants from entering the machinery.

Types: Single lip oil seals, double lip oil seals, high-pressure oil seals.

Applications: Commonly used in automotive engines, gearboxes, and hydraulic systems.

2.O-Ring Seals

Function: Provide a leak-proof seal by being compressed in a gland, preventing the passage of fluids or gases.

Materials: Nitrile rubber (NBR), Viton, silicone, EPDM.

Applications: Used in static and dynamic applications, including pumps, valves, and cylinders.

3.Piston Seals

Function: Ensure a tight seal between the piston and the cylinder bore, preventing fluid from leaking across the piston.

Types: Single-acting piston seals, double-acting piston seals.

Materials: Polyurethane, PTFE, rubber compounds.

Applications: Hydraulic and pneumatic cylinders.

4.Wiper Seals

Function: Remove dirt, dust, and other contaminants from the rod, preventing them from entering the cylinder.

Types: Metal-cased wiper seals, snap-in wiper seals.

Materials: Polyurethane, nitrile rubber.

Applications: Hydraulic and pneumatic cylinders, especially in harsh environments.

5.Hydraulic Rod Seals

Function: Prevent hydraulic fluid from leaking from the cylinder, ensuring smooth and efficient operation.

Types: Single-acting rod seals, double-acting rod seals.

Materials: Polyurethane, PTFE, rubber compounds.

Applications: Hydraulic and pneumatic cylinders.

6.Composite Seals

Function: Provide enhanced sealing performance by combining different materials or sealing elements.

Types: PTFE composite seals, rubber-fabric composite seals.

Applications: High-pressure hydraulic systems, where enhanced durability and performance are required.

If you need Seal Kit, and find hydraulic seals suppliers, come to Sinocmp. We will provide complete sealing solutions for you.