Hydraulic Breakers Seal Kit Replacement Parts for Hanwoo

The Hanwoo Hydraulic Breaker Seal Kit is engineered with premium sealing components to deliver long-lasting protection against oil leakage, contamination, and wear. Designed to fit a wide range of Hanwoo hydraulic hammers, this kit ensures stable performance, efficient impact power, and reduced downtime in heavy-duty 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 seal kit is a critical part of every Hanwoo hydraulic breaker, safeguarding the internal system against hydraulic fluid leakage and external contaminants such as dust, grit, and moisture. By maintaining proper sealing pressure, it ensures smooth piston movement and consistent striking force. A reliable seal kit not only prolongs breaker service life but also lowers operating costs by reducing unplanned repairs.

Quality Manufacturing Process

Each seal kit undergoes strict quality checks to ensure long-lasting performance:

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.

The manufacturing process is focused on achieving OEM-level sealing performance, reducing the risk of leakage and improving overall hydraulic breaker efficiency.

Compatible Furukawa Breaker Models

This Hanwoo Hydraulic Breaker Seal Kit is designed to match the specifications of multiple Hanwoo breaker models, including but not limited to:

  • HB05, HB08, HB10 – Compact breakers for light construction and urban projects.
  • HB15, HB20, HB25 – Medium-duty breakers for excavation, foundation, and trenching work.
  • HB30, HB40, HB50 series – Heavy-duty models used in quarrying, mining, and large demolition tasks.
Part Numbers
RHB301RHB302RHB303RHB304RHB305RHB306RHB309RHB313
RHB320RHB321RHB322RHB323VRHB325RHB326RHB328RHB330
RHB334RHB340RHB350

Our kits serve as direct OEM replacements, offering equivalent sealing quality at a competitive price. If you have a specific OEM reference number or breaker model, our team can verify compatibility to ensure you receive the correct kit.

Application Scenarios

  • Construction Demolition – Prevents leakage during continuous high-impact hammering.
  • Mining and Quarrying – Withstands dust, rock particles, and extreme pressure conditions.
  • Road and Foundation Work – Ensures reliable breaker operation in repetitive trenching and cutting tasks.

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

Hanwoo seal kits are produced from high-grade elastomers. These materials are chosen for their superior resistance to heat, hydraulic pressure, and abrasive working conditions. Advanced molding techniques and strict dimensional controls guarantee an exact fit, while post-curing treatments enhance flexibility and durability under heavy impact cycles.

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 material combination ensures that your breaker remains protected from oil leakage, abrasion, and extreme temperatures, delivering consistent performance in heavy-duty jobs.

Quality Assurance

All Hanwoo seal kits are subjected to strict quality control processes, including leak-proof testing under high pressure, material durability checks, and long-cycle wear simulations. This ensures that the seal kit delivers stable performance, even in extreme operating environments.

Contact Information

For inquiries or to confirm compatibility with your specific Hanwoo breaker model, please contact our team. We provide expert assistance and competitive solutions for all your hydraulic breaker sealing requirements.

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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Request Pricing & Details

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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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