Manufacturing Seal Kit Suppliers fit DandA Hydraulic Breaker
High-performance DandA Hydraulic Breaker Seal Kits designed for tough demolition and construction jobs. Engineered to provide leak-free operation, extend breaker service life, and deliver consistent power under extreme 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 |
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 DandA Hydraulic Breaker Seal Kit is a vital maintenance component that ensures your breaker performs at peak efficiency. DandA breakers are known for their strength, precision, and efficiency, but without proper sealing, they can quickly suffer from hydraulic oil leaks, reduced striking power, increased wear on internal components, and costly downtime.
Our seal kits are precision-engineered to match DandA OEM specifications, providing a perfect fit and restoring your breaker’s original performance. With reliable sealing, you can achieve:
- Stronger impact energy
- Longer service intervals
- Lower maintenance costs
- Increased productivity in demanding worksites
Quality Manufacturing Process
Every DandA breaker seal kit is developed under strict quality control:
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 process guarantees reliable sealing even under the harshest operating conditions.
Key Features & Benefits
- Leak-Free Sealing – Prevents oil leakage and contamination.
- Durability Under Pressure – Resists extreme hydraulic pressure and vibration.
- Extended Component Life – Protects pistons, cylinders, and bushings.
- Consistent Performance – Maintains breaker impact power over time.
- OEM-Compatible Fit – Easy installation and reliable performance for all DandA models.
Compatible DandA Breaker Models
We provide seal kits for a wide range of DandA hydraulic breakers, including but not limited to:
- DMB Series – DMB130, DMB210, DMB360, DMB470
- DHB Series – DHB70, DHB120, DHB230, DHB360, DHB470
(Custom kits available upon request.)
| Part Numbers | |||||||
|---|---|---|---|---|---|---|---|
| 8V | 70V | 80V | 130V | 150V | 180V | 200V | 220V |
| 222V | 250V | 300V | 360V | 450V | |||
If you can't find the serial number you need, please contact us.
Applications
- Mining & Quarrying – Rock and ore breaking in tough environments.
- Construction Projects – Roadwork, foundation, and trenching.
- Demolition – Concrete and reinforced structure dismantling.
- Utility Work – Pipeline installation and underground works.
Seal Placement
In hydraulic breakers, critical seals are strategically positioned around the piston, cylinder, and valve system to ensure:
- 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.
Clear structural diagrams enable users to better understand how the seal kit integrates with the breaker's internal systems and why correct replacement is critical to performance.
Material Overview for Seal Kits
Each seal kit is manufactured from advanced polymers and elastomers to ensure reliable operation in harsh environments:
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 work together to guarantee reliable sealing even in mining, quarrying, demolition, and heavy construction.
Maintenance Tips
- Replace seals during regular breaker servicing.
- Use only clean hydraulic oil that meets OEM standards.
- Store seal kits in a dry, cool place to maintain elasticity.
- Inspect seals regularly for wear to prevent unplanned downtime.
Why Choose Our DandA Seal Kits?
- OEM-spec precision and compatibility
- Enhanced breaker performance and longevity
- Reduced downtime and maintenance costs
- Wide range of models supported
- Reliable supply and strict quality assurance
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.
