Wind Power Seal

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Wind Power Seal
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Wind Power Seal is a full-series customized sealing system exclusively engineered for onshore & offshore wind turbine units. It targets extreme outdoor long-cycle working conditions including wide temperature swings, salt fog, UV radiation, wind-induced shaft deflection and variable-speed rotation, locking lubricants stably while isolating moisture, salt spray, dust and sand to cut wind farm maintenance frequency and lower power generation loss.
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Wind Turbine Seal
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Description

DEDE Seal Co., Ltd. is one of the most reliable manufacturers and suppliers of wind power seal in China. If you're going to buy bulk wind power seal made in China, welcome to get pricelist from our factory. All customized seals are with high quality and competitive price.

 

Wind turbines run 24/7 for over 20 years under harsh open-air environments, facing unique sealing challenges that standard industrial oil seals cannot resolve: extreme cold winter startup, high-temperature gearbox operation, offshore salt corrosion, continuous shaft eccentricity from wind load, plus mixed grease & synthetic gear oil lubrication. Our full line of Wind Power Seals adopts wind-specialized lip geometry, reinforced anti-eccentric skeleton and long-life anti-aging elastomer formulas. The integrated multi-barrier double-lip layout forms dual protection: the inner spring-energized main lip retains high-viscosity gear oil / bearing grease under variable pressure; the outer heavy-duty weatherproof lip blocks sea salt mist, rainwater, sand and airborne pollutants before they contact core bearing & gearbox components. All materials comply with IEC 61400 wind power component standards, with validated long-term aging performance matching the full lifecycle of wind generators.

 

Key Features

 

 

1

Customized design for 20+ years long-term outdoor wind farm continuous operation

2

Excellent tolerance for shaft deflection & radial offset caused by unstable wind loads

3

Wide temperature adaptability, stable elasticity under extreme low-temperature startup and high-speed high-temperature operation

4

Integrated double-lip weatherproof structure, outstanding salt fog, UV and sand erosion resistance for onshore & offshore wind sites

5

Special elastomer formulas compatible with synthetic wind turbine gear oil, EP extreme-pressure grease

6

Low-friction lip design to reduce gearbox power consumption and seal heat buildup

7

Complete size range covering small distributed wind turbines to megawatt large-scale wind units

 

Typical Wind Turbine Application Positions

 

 

  • Wind turbine main gearbox: high-speed output shaft, low-speed input shaft, intermediate shaft seals
  • Generator bearing rotary sealing assemblies
  • Yaw bearing & pitch blade oscillating bearing seals
  • Main shaft large-diameter bearing heavy-duty sealing rings
  • Hydraulic pitch cylinder rod seals & dust wiper rings
  • Nacelle cabin static weatherproof gaskets
  • Small distributed wind turbine transmission & generator sealing parts

 

FAQ

 

 

Q1: What is the core difference between Wind Power Seal and general industrial oil seals?

A: Conventional oil seals are designed for medium-high speed continuous rotation. Wind Power Seal is optimized for low speed, swing motion, permanent vibration and outdoor weather exposure. It features enhanced ozone resistance, salt spray resistance and low-speed followability to meet the 20-year service requirement of wind turbines, which ordinary seals cannot achieve.

Q2: Which material is preferred for offshore wind farms?

A: HNBR or FKM is recommended for offshore sites with high salt spray and humidity. Modified EPDM can be adopted for dry inland onshore wind farms to balance weather resistance and cost.

Q3: Will sealing performance decline after installing split wind power seals?

A: Qualified split seals adopt precision joint vulcanization to ensure joint strength and sealing continuity, ideal for on-site emergency repair and up-tower retrofitting. Solid integral seals are preferred for new turbine assembly.

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