Wholesale Seal Kit fit OKADA Hydraulic Rock Breaker

Premium OKADA Hydraulic Breaker Seal Kit designed for maximum durability, precise fit, and reliable sealing. Prevents hydraulic leaks, protects internal components, and ensures smooth breaker operation in demanding applications.

MaterialNBR/ PTFE/ ACM/ VMQ/ FKM/ HNBR/ EPDM/ Silicone and etc
MOQ5 Pieces
PressureUp to 690bar(10000psi)
Working Temperature-40–120℃(according to the material)
ColorBlack/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.

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Description

The OKADA Hydraulic Breakers Seal Kit is built to restore and maintain the full efficiency of your hydraulic breaker. Breakers are subject to extreme pressure, continuous vibration, and abrasive working conditions, making seals one of the most critical components. This kit provides a complete sealing solution that prevents fluid leakage, blocks dust intrusion, and minimizes premature wear. By upgrading with our seal kit, your OKADA breaker can maintain consistent performance and reduce downtime, ensuring your projects run on schedule.

OEM Fitment & Cross Reference Seals

This kit is designed to fit a wide range of OKADA breaker models, including:

Part Numbers
OKB11AOKB11A2OKB304BOKB308OKB2600TOP25ATOP30TOP35
TOP45BTOP55TOP60BTOP100ATOP200TOP205TOP210TOP250
TOP300TOP400

We also offer cross reference seals support, allowing customers to provide OEM numbers or part codes for accurate matching. This ensures a perfect replacement, reduces ordering mistakes, and guarantees optimal sealing performance for every breaker.

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

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

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

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.

Seals Rigorous Quality Inspection

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.

Internal structure of breaker hammer

Material Overview for Seal Kits

Each seal is made from high-performance rubber, polyurethane, and PTFE compounds that are carefully selected for their resistance to hydraulic oil, heat, and heavy mechanical stress. Our advanced production process guarantees tight dimensional accuracy, elasticity retention, and long service life even under the most demanding impact cycles. All kits undergo strict quality control testing to meet or exceed OEM requirements.

NITRILE RUBBER BUNA NBR

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

FKM FPM FLUORORUBBER SEAL

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 SEALS

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 PROPYLENERUBBER EPDM EPM SEAL

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

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

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.

Benefits of Choosing OKADA Seal Kits

  • Reliable Leak Prevention – Maintains hydraulic pressure and prevents costly oil loss.
  • Extended Component Protection – Reduces wear on pistons, cylinders, and bushings.
  • OEM-Level Performance – Manufactured to strict specifications for precise fit.
  • Durable Under Heavy Load – Withstands extreme conditions in mining, demolition, and construction.
  • Efficient Maintenance – Easy installation, minimizing machine downtime.

Application Scenarios

The OKADA Hydraulic Breakers Seal Kit is widely used across industries where reliability is critical:

  • Construction – For breaking reinforced concrete and road foundations.
  • Mining & Quarrying – Withstanding continuous rock breaking and excavation.
  • Demolition – Effective sealing in high-impact dismantling operations.
  • Infrastructure Projects – Ensuring consistent performance in trenching and foundation work.

Packaging & Supply

Each seal kit is securely packed in moisture-proof, clearly labeled packaging, making identification simple. For large orders, products are palletized for export safety, and customized packaging options are available to suit distributors, OEM partners, and aftermarket resellers.

Shipping and Delivery

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.

SEAL KIT PACKING

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
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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.

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