Wholesale Hydraulic Seal Kit O-ring Box fit KATO Excavator
The Kato Excavator O-Ring Kit comes in 447 and 666-piece options, providing complete sealing solutions for hydraulic systems. Made from premium NBR and Viton materials, each kit ensures durability, oil resistance, and OEM fitment for Kato excavators
| 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 Kato Excavator O-Ring Kit is designed to provide a comprehensive sealing solution for the hydraulic systems of Kato excavators. Each kit includes carefully selected O-rings made from high-quality NBR and Viton materials, ensuring excellent oil resistance, temperature tolerance, and long service life. Available in two different sizes – a 447-piece box and a 666-piece box – these kits are ideal for repair shops, contractors, and fleet maintenance teams that require reliable and ready-to-use sealing parts.
Available Kit Options
447-piece kit – Covers a wide range of common hydraulic sizes, suitable for routine maintenance and quick repairs.
666-piece kit – A more comprehensive selection with extended size coverage, perfect for workshops or heavy-use contractors who need to handle multiple excavator models.
Both options are organized in sturdy, compartmentalized plastic cases, making it easy to identify and access the correct O-ring size during maintenance.
Manufacturing Process of Seal Kits
Each O-ring in the Kato kit is manufactured from premium NBR (nitrile rubber) and FKM (Viton) materials, ensuring excellent resistance to hydraulic oil, fuel, high pressure, and extreme temperatures. The production process includes:
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 & Performance
- NBR (Nitrile Butadiene Rubber): Excellent resistance to hydraulic oil, fuel, and grease; suitable for general excavator maintenance.
- Viton (FKM): Superior high-temperature and chemical resistance; ideal for demanding working environments and long-term sealing reliability.
Each O-ring is manufactured with precision dimensions to ensure proper fitment and effective sealing, minimizing the risk of hydraulic leakage or system downtime.
Application Benefits
- OEM Fitment: Compatible with a wide range of Kato excavator hydraulic cylinders, pumps, control valves, and connections.
- Reduced Downtime: Keeps essential sealing parts at hand, allowing for quick replacement during routine service or unexpected failures.
- Cost Efficiency: Eliminates the need to source individual O-rings, ensuring both convenience and lower maintenance costs.
- Professional Organization: All kits come in labeled, partitioned cases for easy identification and long-term storage.
Why Choose Our O-Ring Kits?
Maintaining the hydraulic integrity of an excavator is essential for performance and safety. Our Kato O-Ring Kits are assembled with industry-standard materials and strict quality control, ensuring that every seal delivers reliable protection against leaks. Whether you are a contractor handling multiple machines or a workshop providing professional services, these kits offer both practicality and long-term value.
Packing & Delivery
- Packed in durable plastic boxes with clear labeling.
- Safe for long-distance shipping with moisture-proof and anti-rust protection.
- OEM customization available upon request.
✅ Available Kit Options:
- 447 PCS O-Ring Kit
- 666 PCS O-Ring Kit
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.
