Hydraulic O-ring Kit Box Seal Set fit Lonking Excavator
The Lonking Excavator O-Ring Kit (800 PCS) provides a complete sealing solution for hydraulic pumps, valves, cylinders, and hose fittings. Made from durable NBR rubber, it ensures long-lasting oil resistance, leak-free operation, and OEM-level reliability for Lonking 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 Lonking Excavator O-Ring Kit is a complete sealing solution designed to meet the demanding needs of heavy-duty excavator hydraulic systems. This kit contains 800 high-quality O-rings, providing operators and maintenance teams with a versatile and reliable assortment that covers the most common sealing applications. Whether used for routine maintenance, emergency repairs, or long-term overhauls, this O-ring box ensures that critical hydraulic components remain properly sealed and leak-free.
Key Features
- 800-Piece Comprehensive Kit: Covers a wide range of O-ring sizes for different sealing points in Lonking excavators.
- Premium Material: Manufactured from oil-resistant and durable NBR rubber, ensuring excellent compatibility with hydraulic fluids.
- OEM-Level Performance: Designed to match the specifications of Lonking excavator hydraulic systems, delivering reliable sealing under high pressure.
- Multi-Component Usage: Suitable for hydraulic pumps, distribution valves, cylinders, pipe fittings, and hose connections.
- Workshop & Field Friendly: The organized case ensures quick identification, easy access, and faster repair times.
Material & Manufacturing Process
The O-rings are made of NBR (Nitrile Butadiene Rubber), a proven material in hydraulic sealing technology. With excellent oil resistance, wear resistance, and compression set properties, these O-rings are capable of withstanding the harsh working environments of construction, mining, and earthmoving operations. Their durability reduces the risk of leakage, ensuring stable performance even under high pressure and fluctuating temperatures.
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.
Applications
The Lonking O-Ring Kit is widely used in:
- Hydraulic Pumps – maintaining reliable high-pressure sealing.
- Control Valves – ensuring precise oil flow direction without leakage.
- Hydraulic Cylinders – preventing oil loss and maintaining smooth operation.
- Pipe Joints & Hose Fittings – protecting connection points from leaks and contamination.
By covering these critical points, this kit ensures the overall reliability of the excavator’s hydraulic system.
Benefits for Operators
- All-in-One Kit: Eliminates the need to source individual O-rings.
- Cost-Effective Maintenance: One purchase covers multiple repair and maintenance cycles.
- Reduced Downtime: Quick replacement of faulty seals minimizes equipment downtime.
- Extended Equipment Lifespan: Ensures stable hydraulic performance and reduces the risk of costly breakdowns.
Packaging & Storage
The 800-piece O-ring set comes in a sturdy, well-organized plastic box with labeled compartments for each size. This makes identification fast and convenient during repair work, whether in a professional workshop or at a construction site. The packaging is designed to withstand dust, oil, and handling stress, ensuring the O-rings remain in perfect condition until use.
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.
