Custom Made Hydraulic Cylinders 300mm Bore Carbon Steel For Dam Gate Control

Product Specification

Hydropower Plant Hydraulic Cylinder 300mm Bore carbon steel for Dam Gate Control

Features:

1. Mechanical locking: Dual hydraulic locks with ratchet mechanism achieve ±0.5° positioning accuracy.
2. Precision bore finishing: Honed inner surface with Ra≤0.2μm and cylindricity ≤IT7 grade.
3. Smart diagnostics: CANopen/Profinet interfaces monitor parameters at 1kHz sampling rate.
4. Low-friction guide bush: Split bronze bush (CuSn12) with ≤0.08 friction coefficient and ≥30MPa·m/s PV rating.
5. Anti-rotation mechanism: Dual keyways and cross slider withstand ≥5000N·m torque.
6. Modular installation: Standardized mounting interfaces adapt to radial, flap, and miter gates.
7. Emergency manual override: G3/8" pump port enables ≥3 full strokes during power failure.
8. Oil temperature control: PTC heaters and air coolers maintain viscosity at 40-60mm²/s@50℃.
9. Long-term anti-corrosion: Surface treatment passes 2000-hour salt spray test for coastal applications.
10. Rapid differential circuit: Asymmetric design achieves ≥0.5m/s no-load speed with ±2% accuracy.

Technical data:

Specifications:

Applications:

Competitive Advantage:

1. Redundant Safety Protections: Triple-layer protection combines mechanical hard stops, electronic overload sensors, and hydraulic locking valves. Triggers emergency braking within 50ms upon detecting 10% overtravel or 150% load surges, ensuring fail-safe gate retention during wire rope failures.

2. Low-Friction Surface Engineering: Honed barrel bores (Ra 0.1μm) with plasma-nitrided surfaces (HRC60 hardness) and solid lubricant impregnation achieve ultra-low starting friction (μ<0.008), effectively preventing stick-slip in low-speed gate operations.

3. Integrated Bidirectional Counterbalance Valves: Pilot-operated counterbalance valves with 5-35 MPa adjustable cracking pressure and <15ms response prevent gate free-fall. Ensures smooth load-controlled movement throughout stroke cycles.

4. Environmental Compliance Certification: Validated through GB/T 2423 series tests including IP68 waterproofing, seismic resistance (Grade 9 per GB 50260), and 120 m/s wind load endurance for reliable operation under flood/earthquake conditions.

The Analysis For Hydropower Hydraulic Cylinder Common Breakdown:

1. Seal failure in hydraulic systems often results from material degradation. Prolonged exposure to high-pressure environments accelerates wear on rubber components.Contaminant ingress can scratch metal sealing surfaces, causing progressive leakage. Symptoms include pressure decay and reduced actuation speed. Implementing scheduled seal replacements and using temperature-resistant materials significantly improves reliability.

2. Piston rod deflection typically originates from misalignment or impact forces. hydraulic cylinder. In hydropower applications, turbine vibration often transmits abnormal loads. Precision alignment verification using laser measurement systems is critical. Surface hardening treatments enhance wear resistance, while protective bumpers mitigate collision risks during operation.

3. Internal leakage exceeding design thresholds indicates worn mating surfaces. Particle contamination accelerates clearance enlargement through abrasive wear. Implementing real-time oil condition monitoring helps detect early-stage degradation. Precision honing and oversized piston installation restore functional clearances, while maintaining ISO 4406 17/14/11 cleanliness extends service life.