Hydraulic leaks in excavators are a costly problem. I’ve seen firsthand how the right seals prevent downtime and extend machine lifespan.
Excavator hydraulic seals are essential for maintaining system pressure, preventing leaks, and protecting cylinders from wear and contaminants.
Let’s break down how to choose the right seals for your excavator.
Why Are Hydraulic Seals Critical for Excavator Performance?
Hydraulic seals:
- Prevent fluid leaks, maintaining pressure
- Block dust, debris, and water ingress
- Reduce wear & friction in cylinder components
- Ensure smooth, reliable machine operation
For sealing basics, read our Oリングの動作原理ガイド.
Which Hydraulic Seals Are Used in Excavators?
| シールタイプ | 関数 | 最適な用途 |
|---|---|---|
| ピストンシール | Stop fluid bypassing piston | High-pressure lifting/digging |
| ロッドシール | Prevent rod-end leakage | High-temp & aggressive fluids |
| ワイパーシール | Clean rod surfaces | Muddy, dusty job sites |
| リングを着用する | Prevent metal contact | High-load lateral support |
| O-Rings & Backup Rings | Static sealing support | Cylinder internals |
探検する Seal Kits for Cylinders 掘削機用途向け。
What Materials Are Best for Excavator Hydraulic Seals?
| 材料 | 温度範囲 | ベストユース | 利点 |
|---|---|---|---|
| ＴＰＵ | -40°C ～ 100°C | ロッド＆ワイパーシール | Flexible, wear-resistant |
| ノンブル | -30°C ～ 110°C | General seals | Cost-effective, oil resistant |
| フッ化水素 | -20°C ～ 200°C | High-temp sealing | 耐熱性および耐薬品性 |
| PTFE | -200°C ～ 260°C | Rod & piston seals | Extreme durability, chemical proof |
| POM | -40°C ～ 120°C | 指輪を着ける | 高強度、低摩擦 |
✅ ヒント： For excavators, TPU & PTFE offer the best balance of wear resistance and chemical durability.
掘削機の油圧シールを測定する方法は?
Correct sizing is key to leak prevention:
- Measure Inner Diameter (ID)
- Measure Outer Diameter (OD)
- Measure Cross-Section (CS)
| シールタイプ | ID | 外径 | CS |
|---|---|---|---|
| ロッドシール | 50ミリメートル | 60ミリメートル | 5ミリメートル |
| ピストンシール | 75ミリメートル | 85ミリメートル | 7ミリメートル |
| ワイパーシール | 90ミリメートル | 100ミリメートル | 6ミリメートル |
カスタムサイズが必要ですか？ Oリングメーカーツール.
Common Hydraulic Seal Failures & How to Prevent Them
| 失敗の原因 | 防止 |
|---|---|
| 過度の熱 | Use FKM/PTFE for high-temp zones |
| Contaminants | Maintain wiper seals, replace as needed |
| Poor Installation | Always use seal installation tools |
| Fluid Incompatibility | Select chemical-resistant materials |
| Wear & Aging | Regular inspections, scheduled replacements |
私たちの Seal Failure Guide covers prevention in detail.
Why Upgrading Excavator Seals Saves You Money
- 70% of hydraulic failures are seal-related
- Poor seals lead to oil leaks, loss of power, and costly downtime
- Upgrading to high-performance TPU & PTFE seals reduces maintenance and increases machine lifespan
For heavy-duty sealing, check Hydraulic Seal Solutions.
Where to Get Reliable Excavator Hydraulic Seals?
Hengoseal offers:
- OEM-compliant excavator seals
- High-performance TPU, FKM, PTFE materials
- Fast delivery, no MOQ
Explore top products:
📩 メール: [email protected]
📞 WhatsApp: +86 17622979498
結論
Choosing the right hydraulic seals is essential for excavator performance and longevity. Invest in high-quality TPU and PTFE seals to reduce downtime and maintenance costs.
Get Excavator Seals That Last – Contact Hengoseal Today
📩 メール: [email protected]
📞 WhatsApp: +86 17622979498
Related topic
How to Choose Hydraulic Seal Kits by Size
Common Hydraulic Seal Failures & Prevention
How to Reduce Downtime with Better Seal Selection
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