Manufacturing Seal Kits Repair Parts for Doosan Hydraulic Hammers
High-quality Doosan Hydraulic Breaker Seal Kits engineered for durability and leak-proof performance. Designed to withstand extreme pressure, vibration, and abrasive working conditions, they help prevent downtime, extend breaker life, and restore original impact power.
| 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 Doosan Hydraulic Breaker Seal Kit is an essential maintenance solution for keeping your breaker operating at peak performance. Doosan breakers are widely trusted in construction, mining, quarrying, and demolition projects for their high power and efficiency. However, constant exposure to high hydraulic pressure, heat, vibration, dust, and debris places enormous stress on internal sealing systems.
When seals fail, problems such as oil leakage, reduced impact energy, power loss, and accelerated component wear quickly arise—leading to costly downtime. Our hydraulic hammer seal kits for Doosan breakers are manufactured to strict OEM specifications, ensuring a precise fit and restoring your breaker’s original strength, efficiency, and service life.
Quality Manufacturing Process
Our production process ensures each seal kit delivers maximum reliability:
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 rigorous process guarantees consistent OEM-level quality in every Doosan breaker seal kit.
Key Features & Benefits
- OEM Precision Fit – Designed to perfectly match Doosan breaker models.
- Reliable Sealing – Prevents oil leakage and maintains full hydraulic power.
- Durable Materials – Resistant to heat, vibration, and heavy-duty impact.
- Extended Service Life – Reduces downtime and lowers maintenance costs.
- Multi-Industry Use – Ideal for mining, quarrying, construction, and demolition.
Compatible Breaker Models
- Our Doosan Hydraulic Breaker Seal Kits are suitable for a wide range of breaker models, including but not limited to:
- Doosan DXB Series: DXB190, DXB260, DXB360, DXB700
- Doosan D Series: DMB140, DMB180, DMB210, DMB230
- Doosan HB Series: HB02, HB03, HB04, HB08, HB15
- Other models available upon request
| Part Numbers | ||||
|---|---|---|---|---|
| DXB100 | DXB130 | DXB170 | DXB190 | DXB260 |
Note: If you are unsure about the exact seal kit for your breaker model, please contact us with your breaker’s serial number or part number, and our team will assist you in selecting the correct kit.
Applications
- Construction Projects – Roadworks, foundations, and trenching.
- Mining & Quarrying – Hard rock breaking and aggregate extraction.
- Demolition – Concrete and reinforced structure removal.
- Heavy Earthmoving – High-power excavation and land development.
Seal Placement
The seal kits cover multiple critical sealing points within the breaker, including:
- Piston & Cylinder Seals – Maintain hydraulic pressure and impact force.
- Valve Seals – Ensure stable oil flow and system efficiency.
- Tool Bushing & Tie Rod Seals – Protect against wear and contamination.
- Front & Back Head Seals – Prevent dust intrusion and hydraulic oil leakage.
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 seal kits are manufactured using carefully selected materials, each optimized for breaker working 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
These materials ensure reliable sealing performance and durability, even in the toughest working environments.
Why Choose Our Seal Kits?
- OEM-quality fit and performance
- Long-lasting durability under heavy-duty conditions
- Reduced downtime and repair costs
- Global supply and fast delivery
- Professional support for correct kit selection
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.
