Repair Seal Kit fit JCB Hydraulic Breaker
High-quality JCB Hydraulic Breaker Seal Kits engineered for superior sealing performance and durability. These kits are designed to withstand high impact and extreme working conditions, helping prevent oil leakage, minimize unexpected downtime, and extend the overall service life of your hydraulic breaker. Perfect for routine maintenance or full rebuilds, they ensure your breaker continues to deliver reliable power on demanding job sites.
| 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.
The JCB Hydraulic Breaker Seal Kit is engineered to deliver consistent sealing performance under the toughest demolition and excavation conditions. Each kit is manufactured using high-grade materials that resist heat, pressure, and abrasion, ensuring your hydraulic breaker operates smoothly and efficiently. By replacing worn or damaged seals, operators can restore optimal performance, reduce oil leakage, and protect costly hydraulic components from premature wear.
Manufacturing Process
Every JCB breaker seal kit is produced through a rigorous manufacturing process that includes:
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.
OEM Fitment & Compatibility
Our hydraulic breaker seal kits are specifically tailored for JCB breakers and match OEM specifications for seamless replacement.
Compatible with models such as JCB HM100, HM140, HM150, HM260, HM360, and other common series.
| MODEL NUMBER | |||||||
|---|---|---|---|---|---|---|---|
| HM100 | HM160 | HM165 | HM165Q | HM260 | HM265 | HM265Q | HM360 |
| HM380 | HM385 | HM385Q | HM386Q | HM460 | HM495 | HM495Q | HM550 |
| HM560 | HM570 | HM670 | HM760 | HM770 | HM850 | HM860 | HM860Q |
| HM960 | HM1050 | HM1150 | HM1260Q | HM1350 | HM1450 | HM1570Q | HM1750 |
| HM1760Q | HM2180 | HM2350 | HM2460Q | HM2950 | HM3060Q | HM3850 | HM4160 |
Direct OEM replacement support for maintenance and aftermarket service.
Customization available for less common or special applications.
Quality Assurance & Testing
Each kit undergoes strict quality checks, including:
- Dimensional accuracy inspection to confirm OEM-standard fitment.
- Hydraulic pressure testing to simulate real working conditions.
- Leakage prevention test for reliable sealing performance.
This ensures every seal kit meets or exceeds JCB’s durability requirements.
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
Our seal kits are crafted from premium-grade NBR and high-strength rubber compounds, specifically formulated to withstand hydraulic fluid, high pressure cycles, and temperature variations. The seals undergo strict dimensional control and hardness testing, ensuring perfect compatibility with JCB breakers.
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
Why Choose Our JCB Breaker Seal Kit?
- Engineered for harsh construction, quarrying, and demolition environments.
- Helps prevent unplanned downtime and costly hydraulic oil leaks.
- Extends breaker service life while lowering overall maintenance costs.
- Backed by strict quality assurance and packaging standards for safe delivery.
Maintenance Tips
- Replace seals at the first sign of oil leakage or pressure drop.
- Keep the breaker’s hydraulic system clean to avoid contamination.
- Store unused seal kits in a dry, cool environment to maintain elasticity.
- Always use proper tools during installation to prevent seal damage.
Packaging & Delivery
All JCB breaker seal kits are packed in oil-resistant bags and sturdy cartons, labeled for easy identification. Bulk packaging options and OEM-branded packaging are also available upon request, ensuring safe transportation and quick supply to distributors and end users worldwide.
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.
