Hyd Seals Rebuild Kit fit Komatsu Hydraulic Breakers
Premium Komatsu Hydraulic Breaker Seal Kit engineered for maximum durability, leak-free operation, and precise OEM compatibility. Built from advanced sealing materials, this kit ensures long-lasting protection of critical components and keeps your Komatsu breaker performing at peak efficiency.
| 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.
For Komatsu hydraulic breakers, sealing integrity directly affects hammering performance and overall equipment reliability. A worn or low-quality seal can lead to oil leakage, reduced striking force, and unexpected downtime. The Komatsu Hydraulic Breaker Seal Kit is specifically designed to safeguard internal components, maintain consistent hydraulic pressure, and keep your breaker operating efficiently in demanding conditions.
Quality Manufacturing Process
Our Komatsu Hydraulic Breaker Seal Kits are designed with OEM-level precision:
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.
This attention to detail guarantees reliable operation across all Komatsu breaker applications.
OEM Compatibility and Cross Reference Seals
The Komatsu Hydraulic Breaker Seal Kit is available for multiple Komatsu breaker models, covering both compact and heavy-duty types. Each kit is tailored to match OEM specifications, providing a perfect replacement solution without compromising performance.
We also support cross reference seals, allowing customers to quickly identify the right kit using OEM part numbers or reference codes. This service eliminates guesswork, reduces downtime, and ensures you receive the correct product every time.
| model Numbers | |||||||
|---|---|---|---|---|---|---|---|
| JTHB20 | JTHB30 | JTHB40 | JTHB50 | JTHB60 | JTHB65 | JTHB70 | JTHB150 |
| JTHB210-3 | JTHB230 | JTHB310 | JTHB400 | JTHB650-1 | Â | Â | Â |
Applications
- Demolition Projects: Maintains high impact force for concrete breaking and structure removal.
- Mining & Quarrying: Provides strong sealing against dust, stone particles, and abrasive materials.
- Road Construction: Ensures continuous breaker operation in long-hour projects.
- Civil Engineering: Keeps hydraulic breakers efficient in foundation and trenching works.
Seal Placement
Seals are strategically installed in piston, cylinder, valve, and tie rod areas of breakers. They work together to:
- Prevents leakage of hydraulic oil under high pressure.
- Protecting internal components from dust, water, and abrasive particles.
- Provides smooth piston and connecting rod movement and consistent impact force.
- Reduces wear on metal components by maintaining proper lubrication.
Seals are strategically placed in the piston, cylinder, tie rods, and valve areas, ensuring full hydraulic protection and preventing premature wear of critical components.
Material Overview for Seal Kits
Each seal kit is manufactured with high-performance elastomers and precision-engineered materials to withstand heavy impact and high-pressure cycles:
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
These materials are carefully selected to achieve a balance between strength, elasticity, and longevity—ideal for both light-duty construction and heavy-duty mining operations.
Maintenance Recommendations
- Replace seal kits proactively rather than waiting for oil leaks.
- Use only recommended hydraulic oils for Komatsu breakers.
- Store spare seals in cool, dry, and dust-free conditions.
- Inspect piston and cylinder surfaces when changing seals to prevent premature wear.
Why Choose Our Konan Seal Kit?
- OEM-quality sealing performance with cost-effective solutions.
- Wide compatibility across Komatsu breaker models.
- Premium-grade materials for durability under extreme conditions.
- Cross reference seals support for easy identification.
- Complete packaging for hassle-free installation.
Contact Us
Looking for the right Komatsu Hydraulic Breaker Seal Kit? Our team provides technical guidance, OEM reference matching, and bulk supply services to ensure your Komatsu equipment stays in top condition.
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.
