Seal Kits Suppliers fit Fine Hydraulic Breakers for Sale
Premium Fine Hydraulic Breaker Seal Kits designed for heavy-duty demolition, quarrying, and construction work. Engineered to resist leakage, extend breaker lifespan, and deliver consistent power in the toughest 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.

Fine hydraulic breakers are trusted in industries such as construction, road building, quarrying, and mining, where equipment faces constant vibration, extreme pressure, and abrasive working conditions. At the heart of each breaker lies the hydraulic seal system, which ensures oil-tight performance and consistent operating power.
When seals wear out, operators face challenges such as oil leaks, reduced striking force, overheating, and unexpected downtime. Replacing seals with high-quality kits not only restores original performance but also prevents costly damage to other components.
Our Fine Hydraulic Breakers Seal Kits are manufactured to deliver exceptional sealing reliability, extended service intervals, and precise compatibility with Fine breakers, ensuring your machine operates at peak efficiency.
Quality Manufacturing Process
Every seal kit undergoes strict testing to guarantee durability and consistent sealing:

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.
Choosing our Fine Hydraulic Breakers Seal Kits means stronger reliability, fewer breakdowns, and improved overall productivity, keeping your projects on schedule.
Key Features & Benefits
- OEM-Standard Fit – Designed to match Fine breaker specifications for easy installation.
- Long Service Life – Resistant to abrasion, heat, and high-frequency impacts.
- Reliable Sealing – Prevents oil leakage and keeps contaminants out of the hydraulic system.
- Consistent Power Output – Maintains striking force and hydraulic efficiency.
- Heavy-Duty Performance – Built for demanding construction, mining, and demolition jobs.
- Lower Maintenance Costs – Reduces repair frequency and unexpected downtime.
Compatible Breaker Models
These seal kits are suitable for a broad range of Fine breaker models, including but not limited to:
- F3, F4, F5, F6
- F7, F9, F12, F19
- F22, F27, F35, F45
- Custom solutions available for additional models
| Part Numbers | |||||||
|---|---|---|---|---|---|---|---|
| FINE4 | FINE5 | FINE6 | FINE7 | FINE10 | FINE15 | FINE20 | FINE22 |
| FINE23 | FINE25 | FINE30 | FINE35 | FINE36 | FINE40 | FINE45 | FINE50 |
Recommendation: Always confirm your breaker’s model number to ensure proper fit.
Applications
Our seal kits are specially developed for operators who work in:
- Demolition & Recycling – Breaking concrete and reinforced structures
- Mining & Quarrying – Crushing rocks and hard materials under extreme pressure
- Road & Bridge Construction – Removing old foundations and asphalt layers
- General Construction – Heavy-duty excavation and foundation work
Wherever maximum breaker efficiency is required, our Fine seal kits ensure optimal performance and long-lasting reliability.
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
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
This material combination ensures that your breaker remains protected from oil leakage, abrasion, and extreme temperatures, delivering consistent performance in heavy-duty jobs.
Why Choose Our Fine Breaker Seal Kits?
- Direct replacement for Fine OEM seal kits
- Extended working life even in harsh conditions
- Protects breakers from oil leaks and system damage
- Competitive price without compromising quality
- Expert support to help select the right kit
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.



