Dozer Seals Hydraulic Interchange Kit fit Komatsu
Premium hydraulic seal kits designed for Komatsu bulldozers. Engineered to ensure long-lasting sealing performance, protect against fluid leakage, and withstand the toughest working conditions.
| 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 Komatsu Bulldozer Hydraulic Seal Kit is specifically developed to restore the efficiency of hydraulic cylinders on Komatsu dozers. Each kit includes precision-engineered seals that provide strong resistance to pressure, temperature variations, and abrasive contaminants. By minimizing hydraulic oil leakage, these kits maintain the bulldozer’s operational power and extend the lifespan of hydraulic components.
Manufacturing Process
Our hydraulic seal kits are produced under strict standards, ensuring consistent quality across all batches.
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 & Applications
These hydraulic seal kits are compatible with Komatsu bulldozer models including:
D65, D85, D155, D275, D355 and more.
Applicable for boom cylinders, arm cylinders, blade cylinders, and ripper cylinders.
| Part Numbers | |||||
|---|---|---|---|---|---|
| 707-99-36150 | 707-99-39710 | 707-99-43250 | 707-99-52160 | 707-99-53620 | 707-99-64250 |
If you have an OEM reference number, our team can quickly match the exact seal kit you require.
Quality Assurance & Testing
Each kit undergoes:
- Pressure resistance testing to ensure no leakage under load.
- Dimensional checks for precision fit.
- Material performance testing against oil, heat, and abrasion.
This guarantees reliable performance even under Komatsu’s demanding bulldozing operations.
Application Scenarios
Komatsu bulldozer hydraulic seal kits are widely used in:
- Earthmoving and grading
- Road construction and land reclamation
- Mining and quarry operations
- Forestry and agricultural projects
Material Overview for Seal Kits
Komatsu seal kits are crafted with advanced polymer and elastomer compounds that can withstand:
- High hydraulic pressure without deformation.
- Extreme working temperatures in hot or cold climates.
- Contaminated environments with dust, dirt, and water exposure.
Every seal is produced under strict quality standards, ensuring uniform performance across different bulldozer models.
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.
Neoprene Rubber(CR )
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
Each seal kit is manufactured with strict dimensional accuracy to match Komatsu’s hydraulic systems, ensuring long-lasting performance and reducing the need for frequent replacement.
Maintenance Tips
- Replace seals at the first sign of hydraulic oil leakage.
- Use clean hydraulic oil to reduce contamination risk.
- Store spare seal kits in a dry, cool place away from sunlight.
- Regularly inspect hydraulic cylinders to prevent premature wear.
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.
