Premium Hydraulic Seals for Excavators
Our hydraulic seals are engineered specifically for excavator cylinders and hydraulic systems. Utilizing premium materials like NBR, PU, FKM, and PTFE, they provide excellent wear resistance, leak prevention, and pressure containment—crucial for heavy-duty applications in construction and mining. YNF’s seals are built to endure harsh conditions, reducing maintenance and keeping equipment operational.
Key Features:
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Made from robust materials: rubber, polyurethane, PTFE, FKM
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Comprehensive range: piston seals, rod seals, wiper seals, wear and buffer rings, O‑rings
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Designed for high pressure (up to 10,000 PSI), temperature extremes, and fluid compatibility
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Precision CNC machining ensures tight tolerances and fluid sealing
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Available as full cylinder seal kits for Komatsu, Caterpillar, Hitachi, and more
Excavator Hydraulic Seal Kits
YNF offers complete seal kits including piston, rod, wiper, and wear rings in customizable materials. Kits available for major brands and cylinder bores. Supplied with installation instructions, technical data, and optional support.
Why YNF Hydraulic Seals Stand Out
YNF seals use advanced elastomers and PTFE for improved abrasion, compression set, and chemical resistance. CNC manufacturing ensures precise fit and performance, extending service life, reducing downtime, and cutting maintenance.
Keep Your Excavators Sealed and Performing
Equip your excavator with YNF’s high-performance seal kits for premium protection and longevity. Designed to meet or exceed OEM standards, our seals ensure reliable hydraulics and reduced failure—keeping your fleet productive and profitable.
Hydraulic Seal Applications
Effective for sealing excavator boom, arm, bucket, and swing cylinders—to prevent leaking and contamination.
Boom & Arm Cylinders
High-pressure piston & rod seals ensure powerful lifting capability
Bucket & Stick Cylinders
Wiper seals protect against soil, debris, and abrasion
Travel & Swing Motors
O‑rings and buffer seals safeguard against heavy load and fluid leakage
Center Joints & Gear Pumps
Prevent oil loss and contamination with static and rotary shaft seals
Tech Specs, Installation, and Supplier Support
📊 Technical Specifications
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Temperature range: -40 °C to +200 °C
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Pressure rating: up to 10,000 PSI
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Materials: NBR, PU, FKM, PTFE to suit fluids & temperatures
🛠 Installation Guide
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Clean bore & rod before assembly
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Use correct lubricant
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Follow torque and depth specs to avoid damage
🌐 Logistics & Support
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MOQ: 20 sets
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Lead time: ~6 weeks
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Export packaging & global delivery available
Download the Excavator Seal Kit Selection Guide
Includes cylinder bore charts, material recommendations, pressure & temperature specs, and installation tips—all in one helpful PDF for engineers and maintenance teams.
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