2.5MW – 16MW Onshore/Offshore Turbines · Forged Flanges · Steel Tubular Towers · Step-Up Substations
Kingshark Energy exports complete utility wind power generation packages, bridging China's world-leading heavy forged steel, nacelle assembly, and generator manufacturing ecosystems to global wind project developers. We deliver complete solutions spanning 2.5MW to 16MW onshore and offshore wind turbines, precision forged tower flanges, certified tubular steel sections, and substation grid-interconnection equipment.
Our electrical and structural engineers evaluate site-specific wind resource profiles (mean wind speed, turbulence intensity, extreme gust velocities) alongside seismic and soil bearing data. We ensure complete structural harmony between the generator nacelle, pitch/yaw drive gears, foundation embedment rings, and 33kV/35kV pad-mounted step-up transformers.
Every tower segment undergoes 100% ultrasonic weld testing (UT) and magnetic particle testing (MT) in climate-controlled fabrication yards. Nacelles and drivetrains complete full-load dyno testing before seaworthy heavy-lift breakbulk transport.
Every product is drawing-verified and audited to IEEE / IEC international norms.
Featuring Doubly-Fed Induction (DFIG) and Permanent Magnet Synchronous (PMSG) direct-drive architectures. Equipped with independent three-blade electromechanical pitch control and cold/hot climate packages.
| Rated Power Range | 2.5MW – 6.X MW (Onshore) / 8MW – 16MW (Offshore) |
| Cut-in Wind Speed | 2.5 – 3.0 m/s |
| Rotor Diameter | 140m – 260m Carbon/Glass Fiber Blades |
| Grid Voltage | 690V / 1140V to 35kV Integrated |
| Grid Code Compliance | Fault Ride-Through (FRT), Frequency & Voltage Control |
Seamless ring-rolled forged flanges manufactured on 10,000-ton hydraulic presses. 100% ultrasonic volumetric inspection with sub-millimeter machining tolerance on CNC vertical lathes.
| Flange Outer Diameter | Up to 8,500 mm |
| Steel Grades | S355NL, S355J2, Q355ND, Q420ND |
| Impact Toughness | Charpy V-Notch >= 47J at -40°C / -50°C |
| NDT Inspection | 100% Ultrasonic Testing (EN 10228-3 Class 3/4) |
| Anti-Corrosion | Thermal Zinc Spraying + Epoxy High-Build Primer |
Roll-formed from high-strength structural steel plates up to 100mm thickness. Automated submerged arc welding (SAW), equipped with internal ladders, rest platforms, LED lighting, and service lifts.
| Steel Specifications | EN 10025 S355ML / S460ML / Q355ME |
| Weld Quality | 100% UT on transverse/longitudinal butt welds |
| Surface Coating | ISO 12944 C5-M / CX Offshore Marine Durability |
| Internal Fit-Out | Power Busbar / MV Cables, Fall Arrest, Service Lift |
| Trial Pre-Assembly | Horizontal laser-alignment trial before dispatch |
Specifically designed for wind turbine base or nacelle installation. High-overload capability, low magnetic loss amorphous or CRGO silicon core, and integrated SF6/vacuum ring main unit switchgear.
| Rated Capacity | 2500kVA – 8000kVA |
| Primary/Secondary Volt | 0.69kV / 1.14kV to 33kV / 35kV |
| Cooling Class | ONAN / KFAF Ester Fluid or Mineral Oil |
| Fire & Safety | High fire-point ester fluid option (K-class) |
| Standards | IEC 60076, IEEE C57.12.00, ISO 14001 |
100% UT/MT non-destructive examination of welded joints, low-temperature Charpy impact testing (-40°C), nacelle drivetrain full-speed back-to-back testing, and trial pre-assembly audits.
Heavy-lift breakbulk ocean transport with dedicated sea fastening cradles and heavy-lift rigging. Custom vessel chartering directly from Shanghai, Taicang, and Nantong deep-water terminals.
Direct evaluation by Dean and lead power engineers. We respond in under 4 hours.
