Wholesale Cylinder Seal Kits for Doosan Wheel Loader
High-performance Doosan Wheel Loader Seal Kit designed to provide excellent sealing capability, prevent hydraulic oil leakage, and extend component life. Manufactured with durable materials and precise dimensions, it ensures smooth operation and reliable performance in demanding construction environments.
| 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 designed to provide a reliable sealing solution for the hydraulic cylinders used in lift, tilt, and steering systems. Each kit includes high-quality seals and rings that prevent oil leakage, protect against contamination, and ensure stable hydraulic pressure. By choosing our seal kit, operators can extend the service life of their wheel loaders and reduce costly downtime caused by hydraulic 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
Each seal kit is produced following strict quality standards. Advanced molding, precision cutting, and rigorous inspection ensure that every seal maintains consistent dimensions and performance. This manufacturing precision guarantees perfect fitment for Doosan wheel loader hydraulic cylinders, minimizing installation issues and maximizing durability in real-world operations.
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
Our seal kits are manufactured using premium-grade materials such as NBR (nitrile rubber), PU (polyurethane), PTFE, and Viton. These materials are carefully selected for their ability to withstand hydraulic oil, high pressure, and temperature variations.
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
Together, these components ensure that the Doosan wheel loader operates with maximum efficiency in demanding construction, quarry, and mining environments.
OEM Compatibility
Our Doosan Seal Kits are designed to meet or exceed OEM standards, making them a reliable replacement for genuine parts. They are compatible with a wide range of Doosan wheel loader models, including but not limited to:
- Doosan DL200, DL250, DL300, DL350
- Doosan DL420, DL450, DL550
Doosan Mega series loaders
If you have an existing OEM reference number or part code, we can provide precise cross-reference seals to ensure the correct kit is supplied.
| Part Numbers | |||||
|---|---|---|---|---|---|
| 440-00248KT | 440-00250KT | 4440-6265KT | K9002293 | K9002294 | K9002295 |
OEM replacement fitment with reference part numbers available upon request
Quality Assurance
Every seal kit undergoes pressure testing, dimensional inspection, and material verification before shipping. These strict quality checks guarantee that the seals deliver consistent leak-proof performance in all operating conditions. With our products, you can count on reduced maintenance costs and longer service intervals.
Application and Benefits
Installing our Doosan Wheel Loader Seal Kit ensures:
- Leak-free hydraulic performance
- Smooth and precise cylinder movement
- Extended machine uptime and reduced repair costs
- Protection against dirt, dust, and moisture intrusion
- A cost-effective alternative to OEM parts without sacrificing quality
Maintenance Tips
For optimal performance, we recommend inspecting seals during routine maintenance intervals and replacing them at the first sign of wear, oil leakage, or reduced hydraulic efficiency. Using the right seal kit helps prevent costly failures and ensures your Doosan wheel loader continues to perform at peak capacity.
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.
