Core Technical Parameters
| Parameter Item | Specification |
| Working Pressure | 16 MPa |
| Cylinder Bore Range | 40~250 mm |
| Applicable Medium | Mineral oil, synthetic hydraulic oil (15–400 mm²/s) |
| Operating Temperature | -20℃ ~ 80℃ |
| Oil Port Type | Internal thread (standard); Flange (≥140 mm bore, optional) |
Hydraulic Hose & Fitting Selection Guide
1. Hydraulic Hose Selection (Matching 16 MPa Working Pressure)
For high vibration and frequent assembly/disassembly scenarios, high-pressure steel wire braided hoses are preferred. Matching details:
| Cylinder Bore Range | Recommended Hose Type | Min. Rated Pressure |
| 40~80 mm | 1-layer steel wire braided hose (1SN) | ≥21 MPa |
| 90~250 mm | 2-layer steel wire braided hose (2SN) | ≥21 MPa |
| Fixed long-distance pipeline | 20# seamless carbon steel pipe | ≥21 MPa |
2. Oil Port & Fitting Specification
Standard oil port is internal thread for easy assembly. Matching specs:
| Cylinder Bore (mm) | Oil Port Thread | Recommended Fitting |
| 40, 50 | M14×1.5 | Compression type male thread to hose |
| 63, 80 | M18×1.5 | Compression type male thread to hose |
| 90, 100, 125 | M27×2 | Heavy-duty compression type |
| 140~250 | M33×2 / Flange | Flange fitting (optional) |
3. Hose Inner Diameter Calculation (Optimized for 16 MPa System)
Hose inner diameter matching (direct application):
| Cylinder Bore (mm) | Max. Flow (L/min) | Recommended Inner Diameter (mm) |
| 40~80 | ≤25 | 8~10 |
| 90~125 | 25~60 | 12~16 |
| 140~250 | 60~150 | 19~25 |
Installation Specifications
1. Pipeline Layout Principles
Hose bending radius ≥ 8× outer diameter; fix with pipe clamps (400~600 mm interval).
Avoid piston rod trajectory and sharp edges; add protective sleeves if needed.
2. Quick Assembly & Disassembly Skills
Use quick-disconnect fittings for frequent disassembly; no need to drain oil.
Lubricate seals before installation; tighten manually + 1/4 wrench turn to avoid slipping.
3. Pipeline Notes for Cylinders with Buffer Devices
Buffer device oil port: separate connection, no parallel with main port.
Run cylinder 3~5 times under no load to discharge air after installation.
Maintenance Guidelines
1. Daily Inspection
Monthly: Check hose for bulges/cracks/exposed wires; check steel pipe for rust/leakage.
Inspect joint tightness, especially in high-vibration areas.
2. Regular Maintenance
Quarterly: Replace fluororubber seals to prevent aging leakage.
Annually: Replace hoses; derust and antirust steel pipes.
3. Fault Quick Handling
Leakage: Retighten loose joints; replace aging seals/damaged hoses.
Cylinder crawling: Loosen the return joint and reciprocate to discharge air.
Contact Us
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