71400161 Hydraulic Seal Kit for Hitachi FH200/FH220 Excavator Arm Boom Bucket Cylinder Repair
71400161 Seal Kit Product Overview
71400161 Hydraulic Seal Kit – Fits Replacement for Fiat-Hitachi FH200-1/FH200-2/FH220-1/FH220-2 Arm, Boom & Bucket Cylinders Repair
Technical Specifications
| Bore/Rod Coverage | Arm: Ø100mm/Ø60mm • Boom: Ø140mm/Ø90mm • Bucket: Ø120mm/Ø70mm |
| Pressure Rating | 40 MPa (5,800 PSI) continuous │ 58 MPa surge |
| Temp. Range | -40°C to +140°C (-40°F to 284°F) |
| Seal Materials | Dynamic: HNBR95 • Static: FKM90 • Wear Bands: Carbon-PTFE |
| Seal System | Quad-Lip Wiper + PEEK Anti-Extrusion |
Seal Kit Contents
| Pressure-Actuated U-Cups | HNBR95 compound (58MPa burst resistance) |
| Thermal-Compensating Rod Seals | Auto-adjust for -40°C to +140°C expansion |
| Quadra-Lip Wiper System | ISO 4406:18/16/13 particle exclusion |
| Shock-Absorbing Buffer Seals | Aramid-reinforced for hammer/vibratory use |
| Low-Friction Guide Bands | Oil-embedded PTFE (CoF ≤0.025) |
| PEEK Anti-Extrusion Rings | Prevents seal blowout at 58MPa |
| Installation Toolkit | Mandrels + seal drivers (Hitachi P/N HT-7720) |
Certified Performance
✅ Zero Cylinder Drift: <0.5° position hold after 48hrs (ISO 6011:2017 validated)
✅ Mine Duty Endurance: 14,000-hour service life in Canadian oil sands operations
✅ Hammer/Vibratory Ready: Withstands 180 bpm impulses from Sandvik/Atlas Copco breakers
✅ Contaminant Defense: 4-stage wipers block 99.3% >10μm particles
Frequently Asked Questions (FAQ)
Q: Do you have any other excavator model repair seal kits ?
A: Yes. As the professional excavator seal kits manufacturer, we produce all the excavators repair seal kits, standard sizes and also support customization. Please tell us the part number seal kit you want.
Q: I can’t find the model I want. Are all your seal repair kits here?
A: No. We have more than tens of thousands seal kits. Here only a small part of them is shown. We have stock of all the seal kits for construction machinery. Please contact us!
Contact Us
For more information or to request a quote, please contact us or email [email protected].
