Wind Power Hydraulic Cylinder | Bore Φ100mm | Pin Φ150mm
Wind Power Hydraulic Cylinder
EP-WP Series · Φ100mm · Pin Φ150mm · Stroke 80mm · 140 kg
A heavy-duty, short-stroke hydraulic cylinder designed for the extreme conditions inside wind turbine nacelles and hubs. At 140 kg with a Φ150 mm mounting pin, this cylinder is built for the continuous vibration, extreme temperatures, and 20+ year service life demanded by the wind energy industry. The compact 80 mm stroke provides precise control for blade pitch adjustment and yaw braking — the two most critical hydraulic functions on a wind turbine.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | Wind Power Hydraulic Cylinder |
| Model Series | EP-WP Series |
| Rated Pressure | 16 MPa |
| Pin Diameter | Φ150 mm |
| Cylinder Length | 855 mm |
| Application | Wind Turbine — Blade Pitch / Yaw System |
▲ Wind Power Hydraulic Cylinder | Bore Φ100mm | Pin Φ150mmHow Hydraulic Cylinders Control Wind Turbines
Wind turbines use hydraulic cylinders for two primary functions: blade pitch control and yaw braking. Blade pitch cylinders rotate each blade around its longitudinal axis — adjusting the angle of attack to control rotor speed and power output. Yaw brake cylinders apply friction pads against the yaw bearing ring — holding the nacelle at the correct wind angle.
The EP-WP wind power cylinder's short 80 mm stroke and heavy 140 kg construction reflect these applications. Pitch and yaw functions require high force over minimal displacement — the cylinder pushes hard through a short distance, then holds position under constant load. The Φ150 mm pin diameter provides the structural connection strength needed for the extreme bending moments at the blade root or yaw ring.
Wind turbine cylinders must operate maintenance-free for years at a time, 80–100 metres above ground, in temperatures from -40°C to +60°C, under continuous vibration from the rotor. The 16 MPa working pressure at Φ100 bore produces approximately 126 kN of force — sufficient for pitch and yaw control on turbines up to 3 MW. Browse the full industrial engineering hydraulic cylinder range.
Engineering for 20-Year Wind Turbine Service Life
Φ150 Pin — Structural Load Path
The oversized Φ150 mounting pin is 50% larger than the Φ100 bore — because the pin transmits the full blade root bending moment or yaw braking torque. The pin is the structural interface between the cylinder and the turbine structure.
80mm Stroke — Force, Not Travel
Blade pitch and yaw braking require high force over minimal distance. The 80 mm stroke provides precise angular control (pitch) or pad engagement (yaw) without the weight and complexity of a longer-stroke cylinder.
140 kg — Built for Decades
The heavy construction reflects the 20+ year design life. Thick-wall tube, massive end caps, and oversized seals are specified for the continuous vibration, thermal cycling, and corrosive (humidity + salt air on offshore turbines) environment inside the nacelle.
Why Choose Korea Ever-Power
Korea Ever-Power is a professional hydraulic cylinder manufacturer and supplier, specialising in forklift hydraulic cylinders, aerial work vehicle cylinders, mobile machinery cylinders, offshore cylinders, and industrial engineering cylinders. Our production facilities are equipped with composite machining centres, multi-station welding robots, automated assembly lines, specialised cylinder testing machines, and a dedicated quality inspection area — ensuring every cylinder meets OEM-grade performance standards.
Korea Ever-Power forklift tilt cylinders are manufactured to the same specifications and quality standards as original equipment cylinders fitted to major forklift brands worldwide. Every cylinder is 100% hydrostatic pressure tested, dimensionally inspected, and shipped with a test certificate and seal kit. Contact the Korea Ever-Power team for pricing and lead time.
Frequently Asked Questions
What Our Customers Say
"We installed Korea Ever-Power wind power cylinders on 12 turbines in our onshore wind farm. After 2 years of continuous operation, zero leaks and consistent pitch response. The 140 kg weight required a nacelle crane for installation, but the quality justifies the effort."
E. Lindqvist — Wind Farm Engineer, Sweden
"The Φ150 pin provides excellent structural integrity at the blade root connection. We tested the cylinder at 25 MPa for 30 minutes — zero pressure drop. Quality matches European wind turbine OEM specifications."
W. Jansen — Turbine Service Director, Netherlands
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Informations complémentaires
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