Hydraulic Seal Kit Suppliers fit OKADA Hyd Breaker
The OKADA Hydraulic Breaker Seal Kit is engineered with premium materials to deliver exceptional durability, leak-free performance, and long-lasting protection for critical hydraulic components. Designed as a perfect OEM replacement, it ensures precise fitment across a wide range of OKADA breaker models. By preventing oil leakage and safeguarding pistons, cylinders, and bushings from premature wear, this seal kit helps extend breaker lifespan, minimize downtime, and maintain consistent impact power in the toughest construction, mining, and demolition environments.
| 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.

Hydraulic breakers are at the core of demanding industries such as mining, roadwork, and demolition, and OKADA breakers are trusted worldwide for their strength and impact power. To keep them operating at their best, a dependable seal kit is essential. The OKADA Hydraulic Breakers Seal Kit delivers complete protection for internal hydraulic systems, preventing fluid leaks, blocking contaminants, and ensuring consistent breaker performance even under continuous high-impact conditions.
OEM Fitment & Cross Reference Seals
Our OKADA Hydraulic Breaker Seal Kit is designed for compatibility with multiple breaker models, such as:
| Part Numbers | |||||||
|---|---|---|---|---|---|---|---|
| OKB11A | OKB11A2 | OKB304B | OKB308 | OKB2600 | TOP25A | TOP30 | TOP35 |
| TOP45B | TOP55 | TOP60B | TOP100A | TOP200 | TOP205 | TOP210 | TOP250 |
| TOP300 | TOP400 | ||||||
To simplify ordering and avoid mismatches, we provide cross reference seals support. By using your OEM part number or kit code, we can identify the correct seal kit for your specific breaker, ensuring accurate replacement and hassle-free installation.
Engineering Standards & Quality Control
Our Hydraulic Breaker Seal Kits are produced with OEM-level precision and go through a strict quality assurance process:

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.
These standards guarantee reliable sealing even under the extreme shock loads of breakers.
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 included in the kit is crafted from premium rubber and other materials to withstand extreme heat, oil, and mechanical stress. Unlike standard aftermarket alternatives, our seals are engineered to maintain their resilience, form, and performance, even under long-term, heavy-duty operation. Advanced production processes and rigorous testing ensure OE-level fit and durability.

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
This carefully balanced material combination ensures seals withstand heavy-duty use while maintaining flexibility and resilience.
Why Choose Our OKADA Seal Kit
- Hydraulic Reliability – Maintains pressure and prevents performance loss.
- Component Protection – Shields breaker cylinders, pistons, and bushings from wear.
- Long-Term Value – Extends equipment life and lowers total maintenance costs.
- OEM Standard Fit – Designed with precise dimensions for a secure installation.
- Heavy-Duty Tested – Suitable for harsh construction, demolition, and quarrying environments.
Application Scenarios
The OKADA Hydraulic Breakers Seal Kit is widely applied in:
- Civil Construction – Foundation work, road building, and trenching
- Heavy Demolition – Breaking reinforced concrete and structural dismantling
- Mining & Quarrying – Rock excavation, crushing, and ore handling
- Infrastructure Development – Projects requiring high breaker reliability and minimal downtime
Packaging & Supply
All seal kits are individually packed in moisture-proof and labeled bags for easy identification. Bulk quantities are securely palletized for international shipping, with options for customized branding and labeling available to support distributors and aftermarket resellers.
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.


