Loader Hydraulic Cylinder Seal Kits Cross Reference for Doosan
Premium Doosan Wheel Loader Seal Kit designed to deliver superior sealing performance for hydraulic cylinders, preventing leaks and ensuring smooth operation under heavy-duty conditions. Manufactured with high-quality PU, NBR, and Viton materials for long-lasting durability and reliability.
| Material | NBR/ PTFE/ ACM/ VMQ/ FKM/ HNBR/ EPDM/ Silicone and etc |
|---|---|
| MOQ | 5 Pieces |
| Pressure | Up to 690bar(10000psi) |
| Working Temperature | -40–120℃(according to the material) |
| Color | Black/Orange/Brown/White/Brown |
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Kinton Seals is trusted by professionals worldwide for providing high-quality seal kits for excavators, dozers, loaders, and other heavy machinery, ensuring reliable performance and long-lasting durability.
The Doosan Wheel Loader Seal Kit is engineered to provide reliable sealing solutions for the hydraulic cylinders used in wheel loaders. These seal kits are critical for preventing hydraulic fluid leaks, maintaining consistent pressure, and ensuring that your equipment operates with maximum efficiency. By using our high-performance seal kits, operators can extend the service life of their loaders while minimizing downtime caused by seal failures.
Key Features & Advantages
- Premium Sealing Materials – Manufactured with top-grade rubber, polyurethane, and PTFE, each seal delivers high elasticity, wear resistance, and superior compatibility with hydraulic oil.
- Reliable Hydraulic Protection – Prevents leakage in critical areas such as boom, arm, and bucket cylinders, keeping your backhoe loader operating at peak performance.
- Extended Service Life – With advanced molding and heat-treatment processes, these seals offer long-lasting performance, reducing the need for frequent replacements.
- Cost-Effective Maintenance – Helps minimize downtime and repair costs by ensuring consistent sealing performance over long operating cycles.
- OEM-Compatible Fitment – Developed to meet or exceed Volvo factory standards, ensuring accurate fit and easy installation.
Manufacturing Process of Seal Kits
Every seal kit is made from carefully selected premium materials, including:
Precision Material Weighing
Each raw material, including polyurethane, PTFE, and rubber compounds, is accurately weighed according to strict formulation standards. This ensures consistent chemical properties, balanced elasticity, and reliable performance across every seal.
Mold Preparation & Material Placement
High-precision molds are thoroughly cleaned and preheated before material placement. The prepared compound is carefully filled into the mold cavities to avoid defects such as bubbles or uneven density, ensuring flawless shaping of the seals.
High-Pressure Compression Molding
Using advanced compression molding machines, the materials are subjected to high temperature and pressure. This process guarantees excellent dimensional accuracy, uniform density, and the proper hardness required to withstand hydraulic pressure and harsh jobsite conditions.
Rigorous Quality Inspection
Every finished seal undergoes strict inspection procedures, including dimensional checks, surface finish evaluation, and sealing performance tests. Only seals that meet international OEM standards are packaged and delivered, ensuring reliable operation for your machine.
This ensures every seal kit performs to OEM standards or better.
Material & Manufacturing Quality
Every seal kit is made from carefully selected premium materials, including:
Nitrile Rubber Buna(NBR, BUNA-N)
Temperature Range:-30 to 125 ℃
Hardness:60-90 Shore A
Color: Black
Use: Oil & Water Resistance Situation Advantage: Excellent oil resistance, performance and stability, widely used, cheaper
Fluororubber(FKM,FPM)
Temperature Range:-20 to 250℃
Hardness:70-90 Shore A
Color: Black/Brown/Green
Use: Oil & Chemical Resistance Situation
Advantage: Wear resistance, acid and alkali resistance, high temperature resistance situation
Silicone (VMQ )
Temperature Range: -60 to 225 ℃
Hardness: 50-70 Shore A
Color: Red/Black/Blue/White/Transparent, etc
Use: Heat& Food Situation(FDA, RoHS Approved)
Advantage: Good heat resistance, cold resistance, lubrication oil resistance, water resistance safety & reliable to human body
Ethylene Propylene Rubber(EPDM, EPM)
Temperature Range:-50 to 150 ℃
Hardness: 60-90 Shore A
Color: Black
Use: Ozone, water vapor situation
Advantage: Excellent oxidation resistance ozone resistance and erosion resistance
Perfluoroelastomer(FFKM, FFPM)
Temperature Range: -42 to 327 ℃
Hardness:60-95 Shore A
Color: Black / White
Advantage: Long-term, proven performance, can mean less frequent seal changes, repairs and inspections, increasing process and equipment uptime in productivity and yield.
Neoprene Rubber(CR )
Temperature Range:-30 to 125 ℃
Hardness:60-90 Shore A
Color: Black
Use: Oil & Water Resistance Situation Advantage: Excellent oil resistance, performance and stability, widely used, cheaper
All seals undergo strict precision molding and quality testing to ensure they meet or exceed OEM standards. This guarantees proper fit, long-lasting durability, and reliable sealing performance.
Compatibility & OEM Fitment
Our Doosan Wheel Loader Seal Kits are designed for multiple models, including but not limited to:
- Doosan DL200, Doosan DL250, Doosan DL300, Doosan DL350, Doosan DL420, Doosan DL450, Doosan DL550
These kits are suitable for various cylinder applications, including lift cylinders, tilt cylinders, and steering cylinders. For cross reference seals or OEM part numbers, please contact us for more details.
| Part Numbers | |||||
|---|---|---|---|---|---|
| 440-00248KT | 440-00250KT | 4440-6265KT | K9002293 | K9002294 | K9002295 |
OEM replacement fitment with reference part numbers available upon request
Why Choose Our Seal Kits?
- OEM Standard Fitment – Perfectly compatible with Doosan wheel loader cylinders.
- Extended Service Life – Designed to withstand high pressure and harsh working conditions.
- Reduced Downtime – Reliable sealing performance minimizes equipment failures.
- Cost-Effective Replacement – Ensures long-term savings on maintenance and repairs.
Quality Assurance
Each seal kit passes through rigorous inspection and testing, ensuring proper dimensions, elasticity, and sealing capability. By maintaining strict quality control, we deliver products that guarantee both safety and efficiency for your Doosan wheel loader operations.
Maintenance Tips
To maximize the lifespan of your Doosan hydraulic seal kits:
- Regularly check hydraulic fluid quality and maintain proper levels.
- Avoid contamination by replacing filters and keeping systems clean.
- Inspect seals during routine maintenance to detect early wear.
- Replace seals as part of preventive maintenance before major leakage occurs.
At Kinton Seals, we understand that reliable delivery is just as important as product quality. Our goal is to ensure that every order of Seal Kits for excavators, bulldozers, wheel loaders, and other heavy machinery reaches our customers safely, on time, and in perfect condition.
Packaging & Protection
- Standard Export Packaging – Each seal kit is carefully packed in moisture-proof and dust-proof bags, ensuring seals remain clean and undamaged during storage and transportation.
- Layered Protection – Kits are placed in sturdy cartons, and for bulk shipments, cartons are further reinforced with pallets and stretch film to minimize impact during handling and transit.
- Customization Options – We provide OEM/ODM packaging services, including branded boxes, barcodes, and special instructions, helping partners strengthen their brand presence in local markets.
- Extra Protection – For bulk shipments, cartons and pallets are reinforced to reduce the risk of damage in transit.
Order Processing & Lead Time
- Standard Seal Kits – For large quantity orders, lead time is usually 7–10 working days, as each kit requires precise matching of every seal, followed by labeling and packaging.
- Custom Seal Kits – For tailored requirements or non-standard models, production and assembly typically take 15–30 days, especially if new tooling or mold development is required.
- Sample Orders – Small batch or sample kits can often be prepared faster, subject to stock availability.
Delivery Options
- Air Freight for urgent orders
- Sea Freight for bulk shipments
- Courier Express (DHL, FedEx, UPS) for small packages and samples
Quick Quote Request
Kinton Seals is trusted by professionals worldwide for providing high-quality seal kits for excavators, dozers, loaders, and other heavy machinery, ensuring reliable performance and long-lasting durability.
