Excavator Oring Kit Box for Doosan Daewoo
The Doosan / Daewoo Excavator O-Ring Kit is a comprehensive sealing solution designed for reliable maintenance of hydraulic and undercarriage systems. Each kit contains premium-quality O-Rings with outstanding resistance to hydraulic oil, heat, and pressure, ensuring a perfect seal for Doosan and Daewoo excavators. Available in 376-piece, 666-piece, and 800-piece kits, this organized box helps operators and service teams handle any sealing task efficiently while reducing downtime and maintenance costs.
| 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.
Hydraulic and undercarriage performance in excavators largely depends on the reliability of sealing components. The Doosan / Daewoo O-Ring Kit is carefully designed to meet these demands, offering a ready-to-use collection of O-Rings in assorted sizes. Whether for routine servicing, emergency repairs, or workshop inventory, this kit provides all the necessary seals in one organized box, ensuring that mechanics can respond quickly and effectively to sealing requirements on-site or in the field.
Kit Variations
Our Doosan / Daewoo excavator O-Ring boxes are available in three set sizes to meet different levels of maintenance needs:
- 376-Piece Kit – A practical selection of the most frequently used seals, ideal for routine maintenance and smaller service teams.
- 666-Piece Kit – A mid-range option with wider coverage for diverse repair jobs, suitable for general contractors and workshops.
- 800-Piece Kit – A complete set offering the broadest range of O-Rings, ensuring you have every size needed for complex repairs and long-term excavator maintenance.
Each box comes with a clear size chart and labeling system, making it easy to locate the correct O-Ring quickly.
Manufacturing Process of Seal Kits
Every seal kit undergoes a strict production process and testing phase to guarantee long-term reliability:
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 meticulous process ensures that every seal kit meets or exceeds OEM standards.
Material and Quality Standards
The O-Rings are manufactured from high-grade NBR (Nitrile Butadiene Rubber) for excellent oil resistance and elasticity. For applications requiring enhanced durability, FKM (Viton) options are also available, providing superior resistance to high temperatures and chemical exposure. Every seal is precision-molded to ensure accurate dimensions, smooth surfaces, and a secure fit within hydraulic systems.
Key material features include:
- Oil & Fuel Resistance – Withstand hydraulic fluids, grease, and diesel.
- Temperature Tolerance – Stable performance in extreme hot or cold environments.
- Durability – Reduced wear and tear under high pressure and heavy load.
Compatible Doosan & Daewoo Excavator Models
O-ring box kit is designed to support maintenance, repair, and hydraulic system servicing for a wide range of Doosan and Daewoo excavators. The assortment includes commonly used O-ring sizes suitable for hydraulic cylinders, pumps, valves, travel motors, swing motors, and other hydraulic components found in popular excavator models.
Commonly supported models include:
* Doosan DX55, DX60, DX80, DX140, DX150
* Doosan DX225, DX235, DX255, DX300, DX340
* Doosan DX380, DX420, DX480, DX520 and related series
* Daewoo DH55, DH60, DH80, DH130, DH150
* Daewoo DH220, DH225, DH258, DH280, DH300
* Daewoo DH370, DH420 and other legacy excavator models
The kit can also be used as a workshop inventory solution for dealers, repair centers, and equipment maintenance teams servicing multiple Doosan and Daewoo machine models. For specific O-ring size requirements, our technical team can provide assistance based on machine model or part number.
Advantages of the Doosan / Daewoo O-Ring Kit
- OEM-Compatible – Manufactured to match Doosan and Daewoo excavator standards.
- Comprehensive Coverage – From common to rare sizes, all sealing needs are addressed.
- Organized Storage – Compartmentalized box ensures quick access and easy use.
- Cost Efficiency – Saves time and money by preventing downtime and avoiding single seal purchases.
- Extended Service Life – High-quality rubber compounds extend replacement intervals.
Applications
The O-Ring kit is widely applicable in different systems of Doosan and Daewoo excavators, such as:
- Hydraulic cylinders – Arm, boom, and bucket cylinders.
- Hydraulic pumps and valves – Ensuring leak-free operation.
- Undercarriage components – Protecting moving parts from dirt and oil leakage.
- Preventive maintenance schedules – Ideal for workshops and field service technicians.
Packaging and Quality Control
Each kit is supplied in a durable plastic case with individual compartments to prevent mixing of different sizes. The cases are lightweight, portable, and suitable for both workshop and field environments. Before packing, every batch of O-Rings is tested for hardness, tensile strength, and resistance to oil and temperature, ensuring long-term reliability.
OEM Fitment and Compatibility
These O-Ring kits are designed to support Doosan and Daewoo excavator OEM replacement requirements. Whether you are maintaining a single machine or servicing multiple models, our kits provide the seals needed to match original specifications and maintain factory-level performance.
The Doosan / Daewoo Excavator O-Ring Kit is a must-have for excavator operators, repair shops, and dealers. With three kit options — 376, 666, and 800 pieces — it provides complete sealing coverage for maintenance and repairs, ensuring excavators remain efficient and leak-free. Durable, well-organized, and OEM-compatible, this kit is the ideal solution for reliable hydraulic sealing in demanding work environments.
Frequently Asked Questions
- What materials are available for the O-rings?
The kit can be supplied with NBR, FKM (Viton), EPDM, and silicone O-rings depending on the application requirements and operating conditions. - Are these O-rings suitable for hydraulic oil systems?
Yes. Most excavator hydraulic applications use high-quality NBR or FKM O-rings that offer excellent resistance to hydraulic oils and lubricants. - Can this kit be used for both Doosan and Daewoo excavators?
Yes. Many hydraulic sealing dimensions are shared across Doosan and Daewoo excavator models, making this assortment suitable for a wide range of machines. - What box sizes are available?
Standard configurations such as 376-piece, 666-piece, and 800-piece assortments are available. - Do you support OEM and private label packaging?
Yes. We provide OEM packaging, customized labels, and private branding services for distributors and wholesalers. - Are the O-rings tested before shipment?
All O-rings undergo dimensional inspection and material quality checks before packaging to ensure consistent sealing performance. - Is this kit suitable for repair shops and dealers?
Absolutely. The O-ring box is widely used by hydraulic repair workshops, excavator dealers, rental companies, and equipment maintenance service providers. - Can you provide bulk orders for distributors?
Yes. We support wholesale orders, distributor programs, and long-term supply cooperation for global markets. - How can I confirm compatibility with my machine?
Simply provide the excavator model, component type, or original part number, and our team will recommend the most suitable O-ring assortment.
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.
