Custom Dozer Hydraulic Seal Kits for Komatsu Bulldozer
Komatsu Bulldozer Hydraulic Seal Kits are engineered for high durability and leak-proof performance in heavy-duty bulldozer hydraulic systems. Manufactured with premium rubber and PTFE materials, these kits provide excellent resistance against heat, pressure, and abrasive working conditions. Each set includes precision-fit seals designed to restore the efficiency of boom, arm, and blade cylinders, ensuring smooth operation and extended service life. Compatible with a wide range of Komatsu dozer models, they offer reliable sealing solutions that minimize 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 |
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.
The hydraulic seal kit for Komatsu bulldozers plays a critical role in maintaining cylinder integrity and operational efficiency. By providing a tight seal between moving components, it prevents oil leakage, maintains hydraulic pressure, and ensures smooth bulldozer operation. With precise sealing, operators can rely on consistent blade control and overall machine stability, even in long working shifts.
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.
OEM Compatibility & Fitment
This Komatsu bulldozer hydraulic seal kit is available for a wide range of models, including:
Komatsu D65, D85, D155, D275, and D375 series
Arm, boom, and blade hydraulic cylinder applications
Custom seal kits can be supplied based on part numbers or cylinder specifications
| Part Numbers | |||||
|---|---|---|---|---|---|
| 707-99-36150 | 707-99-39710 | 707-99-43250 | 707-99-52160 | 707-99-53620 | 707-99-64250 |
For accurate matching, please provide your Komatsu model and OEM reference number when ordering.
Quality Assurance & Testing
All seal kits are tested under simulated operating conditions to guarantee:
- Leak-free performance under high pressure
- Resistance to hydraulic fluid, dirt, and abrasive particles
- Durability in extreme weather conditions
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 hydraulic seal kits are produced using high-quality materials including:
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
- Regularly check hydraulic cylinders for leaks and replace seals at the first sign of wear.
- Keep hydraulic oil clean and replace it according to Komatsu’s maintenance schedule.
- Avoid operating under excessive pressure or temperature beyond recommended limits.
- Always use OEM-compatible seals to prevent damage to cylinders.
Why Choose Our Seal Kits?
- OEM-quality performance at a competitive price.
- Wide range of bulldozer hydraulic seal kits available from stock.
- Professional technical support for correct selection and installation.
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.
