High Quality Hydraulic Seal Kits For Hydraulic Cylinder，We produce the hydrualic cylinders, power units, hydrualic parts and related accessories, such as head, cap, piston rod, rod ends, tube, seal kits, and etc.

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High Quality Hydraulic Seal Kits For Hydraulic Cylinder

We have specially designed seal kits for welded and tie rod Hydraulics cylinders. These exclusive kits include piston seal, rod seal, guide rings, O-rings, static backup ring, and other components. Made from the finest quality materials, these kits are durable and strong.

Product Name	Hydraulic Seal Kits
Temperature Range	Typically -30°C to +120°C (depends on material selection)
Pressure Resistance	Suitable for low, medium, and high-pressure hydraulic systems
Seal Types Included	Rod seals, piston seals, wiper seals, wear rings, O-rings, backup rings
Packaging	Individual bag, box, or complete kit packaging
Delivery	Stable supply with fast production and global shipping support

Hydraulic Seal Kit

High Quality Hydraulic Seal Kits For Hydraulic Cylinder

Detailed Drawing

Supply Range

Hydraulic Seal Kits

We produce the hydrualic cylinders, power units, hydrualic parts and related accessories, such as head, cap, piston rod, rod ends, tube, seal kits, and etc.

ITEM		Description
The parts of hydrualic cylinder		Head, Cap, Piston, Gland, mounting parts.
Steel Tube/ Barrel		Steel grade E355 / St52 / Fe510 / 1524 / 1024,steeless, chrome plated is available
Piston rod/ Chrome plated steel bar		Steel grade C45E / Ck45 / C45 / 1045, steeless, NiCr or induction hardened is available
Rod ends		Spherical Rod Eye, Spherical Plain Bearing, I connecting, T connecting, Clevis are fully supported.
Seal kits		Domestic brand in China, or international brand are optional.
Hydraulic valve group		Including the manifold, hydraulic valves made in China or international brand.
The related accessories of power system		Hydraulic pump, motor, pipe, connector and etc.

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Hydraulic Seal Kits Type

Choosing the Right Seal Kit

Wiper Rings

Wiper Rings, also known as scraper rings, dust wipers, or rod wipers, are essential components used in hydraulic and pneumatic cylinders to prevent external contaminants such as dirt, dust, and moisture from entering the cylinder. Positioned at the cylinder’s rod end, these rings clean the rod surface as it retracts, protecting internal seals and extending component life.

Buffer Seals

Buffer Seals, also known as secondary seals, pressure buffer seals, or hydraulic bumpers, are essential components used in hydraulic cylinders to absorb pressure spikes and protect the primary rod seal from excessive pressure and wear. Positioned in front of the rod seal, these seals help manage fluid pressure and reduce the risk of seal failure.

Back-Up Rings

Back-Up Rings, also known as anti-extrusion rings, support rings, or contingency rings, are essential components used in hydraulic and pneumatic cylinders to support O-Rings and other seals, preventing extrusion and enhancing sealing performance under high-pressure conditions. Positioned on one or both sides of the primary seal, these rings help maintain the integrity of the sealing system.

O-Rings

O-Rings, also referred to as round seals or rubber sealing rings, are critical components used to create reliable static or dynamic seals in hydraulic and pneumatic systems. With a circular cross-section that deforms under pressure, each O-ring seal helps prevent fluid leakage and maintain system integrity. Commonly used in hydraulic cylinders and fluid power applications, hydraulic O-rings are essential for both OEM and repair needs.

Rotary Seals

Rotary Seals, also known as shaft seals, rotary shaft seals, or oil seals, are essential components used in hydraulic cylinders and rotating equipment to maintain a secure seal between rotating and stationary parts. These seals are specifically designed to withstand dynamic rotary motion, preventing fluid leakage while keeping out dirt and contaminants under high-speed and high-pressure conditions.

U-Seals

U-Seals, also known as U-Ring Seals, U-cups, or symmetrical seals, are versatile components used in hydraulic and pneumatic cylinders. Their unique “U” shape features inner and outer sealing lips that flex under pressure, delivering effective sealing in both rod and piston applications.

Our Factory

FAQ

Frequently Asked Questions

We’ll try to answer some of your questions

A: Sure, we have the ability to supply customiezed service. TR series tie rod cylinder is the standard type, but customized stroke, intergraded valve and special tube/rod material is available.

A: Rod seals, Piston seals, Wiper seals (dust seals), O-rings, Wear rings (guide rings), Oil seals

A: Seal replacement intervals depend on machine condition, workload, pressure, temperature, and environment. In normal operation, seals should be inspected regularly and replaced when signs of wear, hardening, cracking, or leakage appear.

A: Yes, it’s a rebuild-able cylinder and we do offer repair kits. Tie rod type is easy to repair.

A: We supply seal kits compatible with major brands such as Hallet, CAT, Komatsu, Hitachi, Volvo, Kobelco, Hyundai, Doosan, JCB, Case, and more.

Aisoar Hydraulic Cylinders Catalogue

We produce the hydrualic cylinders, power units, hydrualic parts and related accessories, such as head, cap, piston rod, rod ends, tube, seal kits, and etc. procedure by the hydraulic tester, this testing step is essential.