Wholesale Seal Kit for Caterpillar Hydraulic Breaker
High-performance Caterpillar hydraulic breaker seal kits, designed to provide reliable sealing, prevent hydraulic oil leakage, and extend the working life of your breaker in heavy-duty applications.
| 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 |
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.
A Caterpillar hydraulic breaker seal kit is an essential component in maintaining the performance and reliability of your breaker. These seal kits ensure hydraulic fluid is properly contained, preventing oil leakage, pressure loss, and unnecessary wear on key components. Without a quality sealing system, hydraulic breakers can suffer from reduced impact power, overheating, and costly downtime. For operators handling quarrying, demolition, mining, or construction projects, investing in a durable seal kit is critical for long-term efficiency and reduced maintenance costs.
Manufacturing Process
Each seal kit undergoes a strict production process to guarantee quality and reliability:
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 seal kits are engineered to match Caterpillar OEM specifications, providing a direct replacement for genuine parts. They are suitable for a wide range of Caterpillar hydraulic breaker models commonly used in construction and mining.
✔ Reliable OEM replacement
✔ Compatible with multiple breaker sizes
✔ Easy installation and maintenance
| MODEL NUMBER | |||||||
|---|---|---|---|---|---|---|---|
| H63 | H70 | H90 | H90C | H90CS | H110E | H110ES | H115E |
| H115ES | H120CS | H120E | H120ES | H130 | H130E | H130ES | H140DS |
| H140ES | H160ES | H180S | H195S | ||||
(For specific model numbers and part references, please contact our team.)
Quality Assurance & Testing
Every Caterpillar hydraulic breaker seal kit is subjected to rigorous testing, including:
- Pressure resistance tests
- Leakage prevention tests
- Temperature endurance evaluations
This ensures each kit maintains stable performance even in the toughest working conditions.
Seal Placement
In Caterpillar 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 Caterpillar breaker seal kits are manufactured using high-grade materials and advanced wear-resistant elastomers. These materials deliver:
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
Maintenance & Service Tips
To maximize the lifespan of your hydraulic breaker and its seal kit:
- Regularly inspect seals for wear or cracks.
- Replace damaged seals immediately to avoid oil leakage.
- Use proper hydraulic oil as recommended by Caterpillar.
- Keep the breaker well-lubricated and clean during operation.
Why Choose Our Caterpillar Breaker Seal Kits
- OEM-equivalent fitment for Caterpillar breakers.
- Extended working life with wear-resistant materials.
- Cost-effective solution with reduced downtime.
- Global shipping and customized packaging available.
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.
