Cross Reference Seal Kits fit Komac Hydraulic Breaker Hammer
The Komac Hydraulic Breaker Seal Kit is built to deliver reliable sealing performance under extreme working conditions. Made with premium elastomers and precision-engineered to match Komac breaker specifications, this kit prevents oil leakage, protects internal components, and helps maintain consistent impact energy. A practical solution for extending the service life of your Komac breakers while reducing 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 |
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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.

In Komac hydraulic breakers, the seal kit is more than just a set of rubber rings — it is the first line of defense that keeps hydraulic oil inside and prevents dust, moisture, and debris from entering. By maintaining correct hydraulic pressure, the seal kit ensures stable piston movement and consistent hammering force. A high-quality seal kit directly improves operational efficiency, reduces wear on other components, and avoids costly downtime caused by oil leakage.
Quality Manufacturing Process
The Komac Hydraulic Breaker Seal Kit is manufactured using advanced molding and finishing processes, ensuring precise dimensions and long-lasting performance. Key production steps include:

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.
Summary: The production process guarantees that every seal kit component meets high performance standards, minimizing downtime and maintenance costs.
OEM Compatibility
This seal kit is designed to fit a wide range of Komac hydraulic breaker series, including but not limited to:
- Compact Series: KB50, KB70, KB100 – used in light demolition and urban construction.
- Medium Series: KB150, KB200, KB250 – widely applied in roadworks, excavation, and trenching.
- Heavy Series: KB300, KB350, KB400 – designed for quarrying, mining, and large demolition projects.
| Part Numbers | |||||||
|---|---|---|---|---|---|---|---|
| KB100 | KB150 | KB200 | KB250 | KB300 | KB350 | KB400 | KB1000 |
| KB1500 | KB2000 | KB2100 | KB3500 | KB3600 | KB4200 | KB5000 | TOR13 |
| TOR18 | TOR22 | TOR23 | TOR26 | TOR36 | TOR42 | TOR55 | |
To help customers find the right product quickly, we provide cross reference seals support. By using your OEM part number or kit code, our team can match the correct seal kit to your specific Komac breaker. This service eliminates compatibility risks and ensures you receive the proper sealing solution for your equipment.
Applications
- Demolition & Construction: Protects breaker performance during continuous hammering.
- Mining & Quarrying: Withstands dust and abrasive conditions, preventing contamination.
- Infrastructure Projects: Ensures reliability in long-cycle trenching and foundation work.
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
Our Komac seal kits are manufactured from advanced NBR and other material compounds, each selected for specific operating conditions:

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
Combined, these materials ensure seals maintain their integrity even under high-pressure cycles, extreme temperatures, and abrasive site conditions.
Maintenance Guidelines
- Inspect seals regularly for early signs of wear or leakage.
- Replace seals during scheduled maintenance intervals to avoid unplanned downtime.
- Always use Komac-recommended hydraulic oils to maintain seal elasticity.
- Store spare seal kits in clean, dry environments to preserve material quality.
Contact Us
For detailed model compatibility, OEM cross-references, or bulk purchasing inquiries, please reach out to our sales team. We provide professional guidance to help you select the correct Komac Hydraulic Breaker Seal Kit and keep your machines running at peak performance.
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.




