Shaoyang Victor Hydraulic Co., Ltd.
Add to Cart
Water Conservancy Hydraulic Cylinder Ø300mm Bore for Sluice Valve Operations
Features:
1. Differential pressure contamination alarm (triggered at β≥200) maintains NAS 1638 Class 6 cleanliness
2. Piston rod coating adhesion ≥15MPa (ASTM B571 bend test) shows superior anti-spalling property
3. Redundant safety design (dual circuits + cross relief valves) maintains ≥70% force during single failure
4. Mounting surface flatness ≤0.05mm/m with 3-point spherical bearing (±5° swing) eliminates eccentric load
5. Self-boosting compensator (1:1.2 pressure ratio) offsets pressure drop from internal leakage
6. Contamination warning: Differential pressure alarm triggers at β≥200 to ensure NAS 1638 Class 6 cleanliness.
7. High-adhesion coating: Piston rod coating passes bend tests with ≥15MPa adhesion strength.
8. Redundant safety: Dual circuits and cross relief valves maintain ≥70% force during component failure.
9. Self-aligning mount: Three-point spherical bearing accommodates ±5° misalignment during installation.
10. Pressure compensation: Self-boosting device (1:1.2 ratio) offsets internal leakage pressure drop.
Technical data:
| Parameter Category | Technical Parameter | Technical Specifications |
| Basic Parameters | Bore Diameter | Φ200-Φ2500mm (H8 tolerance grade) |
| Stroke | Max. single-stage stroke 24000mm (straightness ≤0.05mm/m) | |
| Working Pressure | 16-45MPa (rated), instantaneous pressure ≥1.5×rated | |
| Material & Manufacturing | Cylinder Body Material | Forged 27SiMn/34CrMo4 steel (Tensile strength ≥900MPa, Yield strength ≥750MPa) |
| Piston Rod Surface Treatment | Laser Cladding + Hard Chrome Plating (Thickness 0.05-0.1mm, Hardness ≥900HV) | |
| Cylinder Bore Finishing | Precision honing (Ra ≤0.2μm, Cylindricity ≤IT7 grade) | |
| Sealing & Leakage | Primary Sealing System | PTFE Guide Rings + PU U-Seals + Dust Wipers (Leakage ≤0.1ml/min @35MPa) |
| Redundant Static Seals | Dual O-Rings + Backup Rings (Redundancy ≥200%) | |
| Cushioning & Motion Control | Cushioning Mechanism | 3-Stage Hydraulic Cushioning (Tapered throttling + Elastic accumulators, ≥85% speed attenuation) |
| Position Sensor Accuracy | Magnetostrictive/LVDT type (Resolution 0.01mm, Linearity ±0.05%FS) | |
| Environmental Adaptability | Operating Temperature Range | -40°C to +80°C (Fluorocarbon seals compliant with ASTM D2000 M4EE) |
| Corrosion Resistance | C5-M Corrosion Resistance (HVOF WC-Co coating, ≥2000 hours salt spray test) | |
| Smart Monitoring | Pressure Monitoring | Piezoresistive sensor (Accuracy ±0.5%FS, Range 0-50MPa) |
| Temperature Monitoring | PT1000 sensor (Range -50°C to +150°C, Accuracy ±0.5°C) | |
| Vibration Analysis | Triaxial accelerometer (Frequency response 0-10kHz, Sampling rate ≥10kHz) | |
| Safety & Reliability | Burst Pressure | ≥2.5×Rated Pressure (Cylinder deformation ≤0.1% of total length) |
| Fatigue Life | 2 million cycles per ISO 6402 (No cracks/permanent deformation) | |
| Emergency Manual Operation | Integrated G3/8" manual pump port (≥3 full stroke operations) | |
| Installation & Maintenance | Mounting Surface Flatness | ≤0.05mm/m mounting base flatness |
| Maintenance Interval | Seal replacement cycle ≥5 years/100k cycles (MTTR ≤4 hours) | |
| Energy Efficiency & Eco-Friendly | Hydraulic Fluid Compatibility | Compatible with mineral oils & HETG bio-oils (Seals certified per DIN 51524) |
| Energy Optimization | Differential Circuit Design (≥30% energy reduction in return stroke) |
Specifications:
| Cylinder Type | Mill type, Head Bolted, Base Welded |
| Bore Diameter | Up to 2500mm |
| Rod Diameter | Up to 600mm |
| Stroke Length | Up to 24,000mm |
| Piston Rod Material | AISI 1045, AISI 4140, AISI 4340, 20MnV6 |
| Rod Surface Treatment | Hard chrome plated, Chrome/Nickel plated, Ceramic coated |
| Tube Material | Carbon steel AISI1045 or ST52.3, Alloy steel AISI4140, Stainless steel 2Cr13 or 1Cr17Ni2 |
| Tube Surface Painting | Colors according to RAL and thickness according to customer needs |
| Mounting Type | Clevis, Cross tube, Flange, Trunnion, Tang, Thread |
| Design Pressure | Up to 40Mpa |
Applications:
Competitive Advantage:
1. Quick-Disconnect Hydraulic Ports: SAE flange ports with 24° metric cone seals and self-sealing couplers allow 30-minute fluid connection with <0.5L oil loss during maintenance, minimizing downtime.
2. Lifecycle Monitoring Capabilities: Embedded multi-sensor arrays (vibration/temperature/pressure) coupled with edge-computing units enable 85%+ accurate remaining life predictions for seals and bearings via machine learning algorithms.
3. Energy-Efficient Differential Circuitry: Piston-rod area differential enables 30% flow reduction during gate lifting. Combines with accumulator-based potential energy recovery to boost system efficiency by 25%, meeting green hydropower standards.
4. Precision Long-Stroke Manufacturing: Deep boring-rolling compound processing achieves 16m strokes with ≤0.08mm/m straightness. Laser-aligned assembly ensures ISO 4394 H8-grade coaxiality for extended travel applications.
The Analysis For Hydropower Hydraulic Cylinder Common Breakdown:
1. Cushioning failure manifests as terminal position impacts. hydraulic cylinder. Degraded polyurethane cushions lose energy absorption capacity, causing hydraulic hammer effects. Monitoring pressure spikes during deceleration phases helps identify issues. Upgrading to impact-resistant polymer composites and recalibrating throttle valves restores proper damping performance.
2. Cavitation erosion occurs when vapor bubbles implode on metal surfaces. This phenomenon preferentially attacks chrome-plated cylinder bores in turbine governors. Installing bladder accumulators maintains stable pressure above vaporization threshold. Flow simulation software optimizes port geometry to minimize turbulence-induced pressure drops.
3. External leakage allows particulate ingress into lubrication systems. hydraulic cylinder. In silt-laden environments, wiper seals require enhanced abrasion resistance. Dual-lipped configurations with PTFE backup rings improve exclusion efficiency. Real-time moisture sensors trigger centrifugal purifiers when water content exceeds 0.1% volumetric.