Wholesale Durable Excavator Hydraulic Seal Kits Cross Reference for Case
Keep your Case excavator running at peak efficiency with our premium hydraulic seal kits. Manufactured with high-grade materials and precision molding, these seal kits deliver excellent resistance to pressure, heat, and wear. Perfectly engineered for Case models, they ensure reliable sealing performance, extended service life, and reduced downtime, even under demanding jobsite conditions.
| Material | NBR/ PTFE/ ACM/ VMQ/ FKM/ HNBR/ EPDM/ Silicone and etc |
|---|---|
| Working Temperature | -40–120℃(according to the material) |
| Pressure | Up to 690bar(10000psi) |
| Color | Black/Orange/Brown/White/Brown |
| MOQ | 5 Pieces |
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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.
Case excavator seal kits are designed to provide exceptional sealing performance in hydraulic systems, preventing oil leakage and maintaining consistent pressure during operation. By replacing worn seals with high-quality alternatives, operators can protect cylinder components, reduce downtime, and achieve longer service life for their Case machines.
Premium Materials & Manufacturing
Each seal kit is produced using carefully selected materials such as NBR, HNBR, Viton, and PTFE to ensure compatibility with hydraulic oils and resistance to wear, heat, and pressure.
- Wear resistance: Suitable for long-term heavy-duty use.
- High temperature tolerance: Stable sealing under tough jobsite conditions.
- Custom blends: Options available for extreme working environments.
Manufacturing Process
The production of our Case excavator seal kits follows a controlled and systematic workflow. It begins with carefully sourced raw materials, which are processed through precision compounding and molding techniques. Each component is then machined to exact tolerances and subjected to strict performance testing, ensuring resistance against high pressure, abrasion, and extreme working conditions. With these refined steps, every seal kit achieves stable quality and dependable performance, meeting the rigorous demands of Case excavator hydraulic systems.
Precision Material Weighing
Each raw material block is carefully weighed with high-accuracy equipment before processing. This ensures that every seal ring starts with the exact material volume required for its specific size and application, preventing inconsistencies in density or performance.
Mold Preparation & Material Placement
After weighing, the prepared material is positioned onto the appropriate mold. Our workshop is equipped with a wide variety of molds to match different seal ring diameters and cross-sections. The correct mold selection guarantees precise shaping, while careful placement avoids defects such as uneven thickness.
High-Pressure Compression Molding
The molds are then set under specialized compression machines, where controlled pressure and temperature are applied. This process allows the material to be fully formed into a durable seal with consistent hardness and elasticity. Strict monitoring ensures every batch meets dimensional accuracy and structural integrity.
Rigorous Quality Inspection
Each batch of seals undergoes rigorous testing after molding. Technicians check for dimensional accuracy, surface smoothness, hardness, and sealing resilience. Any defective products are filtered out, ensuring that only seals with stable performance and long service life proceed to packaging.
Compatibility with Case Excavators
This seal kit is specifically designed for Case hydraulic cylinders, including boom cylinders, arm cylinders, and bucket cylinders. Customized seal kits are also available for different Case models upon request.
Below are some serial numbers for Case excavator seals.
| PART NUMBER | |||||||
|---|---|---|---|---|---|---|---|
| 72283999 | 72284002 | 72284189 | LZ00443 | LZ00444 | LZ00445 | LZ00446 | LZ00447 |
| LZ007300 | LZ007310 | LZ007320 | LZ007630 | LZ007640 | LZ007650 | ||
If you can't find the serial number you need, please contact us.
Quality Control & Testing
- Dimensional inspection
- Pressure leakage testing under working conditions
- OEM standard compliance
- Traceable batch records for reliability
Advantages of Choosing Our Seal Kits
- Extended hydraulic cylinder service life
- Reduced downtime and repair costs
- Factory-direct supply with strict quality assurance
- OEM replacement and customized support available
Material Overview for Seal Kits
Our excavator seal kits are manufactured using a wide selection of premium elastomers and polymers, carefully chosen to deliver durability and consistent sealing performance under harsh working environments. Materials such as Neoprene Rubber (CR) and Nitrile Rubber (NBR/BUNA-N) provide reliable oil and abrasion resistance for everyday hydraulic applications. For higher temperature and chemical resistance, advanced compounds like Fluororubber (FKM/FPM) and Perfluoroelastomer (FFKM/FFPM) ensure stability and longer service life. Silicone (VMQ) is applied where flexibility and low-temperature performance are required, while Ethylene Propylene Rubber (EPDM/EPM) enhances resistance against weathering, steam, and certain fluids. By combining these materials according to specific working conditions, each seal kit achieves optimal balance of strength, elasticity, and sealing reliability—ensuring Case excavators maintain peak efficiency with reduced downtime.
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.
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
Application Scenarios
Seal kits are widely used in:
- Case excavator construction projects
- Mining and quarrying operations
- Road building and earthmoving
- Agricultural excavation work
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.
