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 Hướng dẫn nguyên lý hoạt động của vòng chữ O.
Which Hydraulic Seals Are Used in Excavators?
| Loại con dấu | Chức năng | Tốt nhất cho |
|---|---|---|
| Phớt piston | Stop fluid bypassing piston | High-pressure lifting/digging |
| Thanh phớt | Prevent rod-end leakage | High-temp & aggressive fluids |
| Phớt gạt nước | Clean rod surfaces | Muddy, dusty job sites |
| Đeo nhẫn | Prevent metal contact | High-load lateral support |
| O-Rings & Backup Rings | Static sealing support | Cylinder internals |
Khám phá Seal Kits for Cylinders cho các ứng dụng máy đào.
What Materials Are Best for Excavator Hydraulic Seals?
| Vật liệu | Phạm vi nhiệt độ | Sử dụng tốt nhất | Thuận lợi |
|---|---|---|---|
| TPU | -40°C đến 100°C | Phớt thanh và gạt nước | Flexible, wear-resistant |
| NBR | -30°C đến 110°C | General seals | Cost-effective, oil resistant |
| FKM | -20°C đến 200°C | High-temp sealing | Khả năng chịu nhiệt và hóa chất |
| PTFE | -200°C đến 260°C | Rod & piston seals | Extreme durability, chemical proof |
| POM | -40°C đến 120°C | Đeo nhẫn | Độ bền cao, ma sát thấp |
✅ Mẹo: For excavators, TPU & PTFE offer the best balance of wear resistance and chemical durability.
Làm thế nào để đo phớt thủy lực cho máy xúc?
Correct sizing is key to leak prevention:
- Measure Inner Diameter (ID)
- Measure Outer Diameter (OD)
- Measure Cross-Section (CS)
| Loại con dấu | NHẬN DẠNG | ĐẠI HỌC | CS |
|---|---|---|---|
| Thanh niêm phong | 50mm | 60mm | 5mm |
| Phớt piston | 75mm | 85mm | 7mm |
| Phớt gạt nước | 90mm | 100mm | 6mm |
Bạn cần kích thước tùy chỉnh? Hãy thử Dụng cụ làm vòng chữ O.
Common Hydraulic Seal Failures & How to Prevent Them
| Nguyên nhân thất bại | Phòng ngừa |
|---|---|
| Nhiệt độ quá cao | 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 |
Của chúng tôi 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:
📩 Email: [email protected]
📞 WhatsApp: +86 17622979498
Phần kết luận
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
📩 Email: [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
VI 
EN 
BN 
AR 
CS 
DA 
DE 
EL 
EO 
ES 
IT 
FR 
PT 
ID 
JA 
RU 
ML 
RO 
UK 
TR 
TH 
KO