High Temperature Silicone O-ring Kit Box fit Kobelco Excavator
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.
Reliable sealing is critical for the performance and safety of Kobelco excavators. Hydraulic leaks not only reduce machine efficiency but also cause costly downtime. To address these challenges, the Kobelco O-Ring Kit provides a wide assortment of seals that match OEM standards and ensure long-lasting performance. Each kit is carefully organized, making it easy to find the correct size quickly, whether you are working in a service workshop or conducting on-site repairs in demanding environments.
Kit Options
We provide three O-Ring kit variations to suit different levels of maintenance needs:
- 447-Piece Kit – A compact selection of the most frequently used O-Ring sizes, ideal for light service tasks and fieldwork.
- 666-Piece Kit – A mid-range option with a broader range of seals for more comprehensive coverage in repair and maintenance.
- 823-Piece Kit – The most complete kit, offering the largest variety of O-Rings, ensuring technicians have every size required for even the most complex hydraulic or undercarriage repairs.
Each kit includes a clear size chart and labeling system, allowing for fast identification and reducing errors during replacement.
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 in the Kobelco kits are manufactured from premium-grade NBR (Nitrile Butadiene Rubber), which provides outstanding resistance to hydraulic oils, grease, and diesel fuels. For high-temperature and heavy-duty applications, FKM (Viton) options are also available, offering excellent chemical resistance and extended service life.
Key features of the material include:
- Excellent elasticity and compression set resistance for tight sealing.
- Superior oil resistance to prevent swelling or degradation.
- Wide temperature range to ensure stable performance in extreme climates.
- Durable construction that withstands high-pressure hydraulic systems.
Why Choose the Kobelco O-Ring Kit?
- OEM-Compatible – Manufactured to match Kobelco excavator specifications.
- Comprehensive Coverage – All common and rare O-Ring sizes included.
- Organized Storage Box – Prevents mixing, loss, and confusion.
- Time & Cost Saving – Reduces downtime by ensuring seals are always available.
- Workshop & Field Ready – Lightweight, portable design for multiple environments.
Applications
The Kobelco Excavator O-Ring Kit can be applied across different machine systems, including:
- Hydraulic cylinders (boom, arm, and bucket cylinders)
- Hydraulic pumps and valves
- Undercarriage components requiring reliable sealing
- Preventive maintenance schedules for workshops and on-site service teams
These kits are essential for mechanics, dealers, and fleet managers who need fast, reliable sealing solutions that meet the high-performance demands of Kobelco machinery.
Packaging & Quality Assurance
Each O-Ring kit is supplied in a durable, impact-resistant plastic box with multiple compartments. The organized layout ensures seals remain separated by size and are easy to access. Before packaging, every O-Ring undergoes strict quality inspection for hardness, tensile strength, oil resistance, and dimensional accuracy, guaranteeing long-term reliability and consistent performance.
Maintenance Tips
To maximize the performance and service life of your Kobelco O-Ring Kit:
- Store the kit in a cool, dry place, away from direct sunlight.
- Always clean sealing grooves before installation to avoid contamination.
- Replace O-Rings whenever hydraulic components are disassembled.
- Use the correct size to ensure proper sealing and avoid extrusion.
The Kobelco Excavator O-Ring Kit is an indispensable tool for workshops, contractors, and equipment owners. With three kit sizes — 447, 666, and 823 pieces — it provides the flexibility to meet different maintenance demands, from small-scale repairs to comprehensive servicing. Durable, OEM-compatible, and conveniently organized, this kit helps keep Kobelco excavators running smoothly while minimizing downtime and costs.
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.
