High Strength Hydropower Plant Hydraulic Cylinder 200mm Bore 5000kN Load

Hydropower Plant Hydraulic Cylinder 200mm Bore High-Strength 5000kN Load

Features:

1. Integrated mechanical locking device (dual hydraulic lock + ratchet) with ±0.5° accuracy per DIN 15434
2. Cylinder bore honing (Ra≤0.2μm) with cylindricity ≤IT7 grade extends seal service life
3. Smart diagnostic interface (CANopen/Profinet) monitors pressure/temperature/displacement at 1kHz sampling rate
4. Split-type bronze guide bush (CuSn12) with friction coefficient ≤0.08 and PV value ≥30MPa·m/s
5. Anti-rotation mechanism (dual keyway + cross slider per ISO 3019) withstands ≥5000N·m torque
6. Modular design (ISO 6020/6022 mounting) compatible with various gate types (flap/radial/miter)
7. Emergency manual pump port (G3/8" BSPP) allows ≥3 full strokes during power loss
8. Built-in oil temperature control (PTC heater + air cooling) maintains 40-60mm²/s viscosity@50℃
9. C5-M corrosion protection (ISO 12944) passes ≥2000h salt spray test for coastal projects
10. Asymmetric circuit design (differential rapid return) achieves ≥0.5m/s no-load speed with ±2% accuracy

Technical data:

Specifications:

Applications:

Competitive Advantage:

1. Multi-Chamber Buffer Structure: Three-stage cushioning chambers with conical throttle valves and adjustable damping orifices optimize velocity profiles, reducing end-stroke impact speed to <0.2 m/s. Enhances shock absorption by 40% compared to conventional designs, effectively mitigating water hammer effects.

2. Modular Assembly Configuration: ISO 6020/1-compliant split flange connections enable fully modular assembly of barrel, end caps, and piston components. Individual modules ≤3T facilitate installation in confined shaft spaces, allowing seal replacement without full disassembly.

3. Ultra-Compact High-Pressure Design: Topology-optimized geometry achieves 1:15 diameter-to-stroke ratio at 42 MPa rating. Wall thickness reduction by 20% maintains safety factor ≥4, ideal for space-constrained dam-top gate installations.

4. Adaptive Temperature Compensation: Viscosity-temperature compensated valve stacks automatically adjust damping and backpressure across -20°C to 80°C. Maintains speed stability (±3% fluctuation) under extreme thermal gradients in high-altitude reservoirs.

The Analysis For Hydropower Hydraulic Cylinder Common Breakdown:

1. Wear of the buffer device leads to impact at the end of the stroke, which is common in the floodgate system with rapid opening and closing. The polyurethane buffer ring is permanently deformed under frequent impacts, and the failure of throttle valve adjustment causes oil spray. The fault characteristics are metal collision sound at the terminal position and abnormal increase in oil temperature. The buffer cavity pressure curve should be checked regularly, the impact-resistant composite material should be replaced, and the damping hole size should be calibrated.

2. The oil in the low-pressure area vaporizes to form cavitation explosions, which erode the inner wall coating of the cylinder. This is common in high-flow guide vane control cylinders, and the risk increases when the pressure fluctuation exceeds 3MPa. Use nitrogen accumulators to stabilize system pressure, and improve flow channel design to reduce sudden changes in flow rate. Ultrasonic flaw detection can detect micron-level surface pits, and damaged cylinders need to be re-plated with hard chrome.

3. The oil film rupture at the piston rod seal leads to the intrusion of environmental pollutants, causing lubrication failure. This often occurs in gate cylinders in rivers with a lot of sediment. The combination of double-lip dust rings and oil scrapers can improve the sealing level. Check the rod surface for scratches every week, use online oil water content detection, and start the centrifugal oil purification device when it exceeds the standard.