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    Mobile Wind CR400BW

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    Cotes Mobile Wind

    CR400BW

    High-capacity adsorption dehumidifier for onshore wind turbines  

    The CR400BW is part of the Cotes Mobile Wind product family — adsorption dehumidifiers developed specifically for retrofit installation in onshore wind turbines.

    The unit is designed for internal tower installation where larger air volumes or higher moisture loads require increased dry-air capacity. It supports humidity stabilisation, condensation control and protection of electrical and structural components.

    Explanation of Naming

    The product designation follows Cotes naming logic:

    • C – Cotes adsorption platform
    • R – Rotor-based adsorption technology
    • 400 – Capacity class
    • B – Building heritage (inherited from the original Mobile range)
    • W – Wind application

    The “BW” designation identifies the unit as a wind-adapted model within the Mobile Wind family.

    Position within the Cotes Mobile Wind family

    The CR400BW represents the highest-capacity unit within the Mobile Wind range.

    Cotes Mobile Wind units are developed for turbines that were not originally designed with integrated dehumidification. The family includes:

    • Compact retrofit units (CR80B-FC / FCS)
    • Wall-mounted turbine units (CR100)
    • Higher-capacity wind-adapted units (CR240BW / CR400BW)

    The CR400BW is typically selected where:

    • Larger tower volumes require climate stabilisation
    • General tower humidity reduction is prioritised over cabinet-only protection
    • Increased regeneration airflow is required

    Unlike offshore-engineered overpressure systems (CWO family), the CR400BW is intended for onshore retrofit applications without structural modification of the turbine.

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    High-capacity dry-air delivery: Dry air capacity 400 m³/h for tower volumes and applications with higher moisture load.
    Wind-adapted rotor drying principle: Adsorption-based moisture removal supporting stable humidity control across varying turbine operating conditions.
    Defined wind turbine integration: Designed for internal turbine installation as part of a dry-air strategy, rather than general building use.
    Increased regeneration airflow: Regeneration air 90 m³/h, supporting higher moisture transport out of the rotor (within engineered limits).
    Defined electrical demand: Connected load 1.97 kW, requiring suitable auxiliary power availability.
    Compact for its capacity class: Dimensions 623 × 431 × 405 mm (W × D × H) relative to airflow performance.
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    TECHNICAL DATA

    Model DRY AIR (M3/H) REGENERATION AIR (M3/H) CONNECTED LOAD (kW) MOISTURE REMOVAL CAPACITY (KG/H) DIMENSIONS (WxDxH) DATASHEET PRODUCT MANUAL
    CR80B-FCS 80 40 0,83 0,44 485 / 313 / 327 Datasheet
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    CR100 100 40 1 0,6 373 / 284 / 520 Datasheet
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    CR240BW 240 40 1,05 0,8 400 / 333 / 361 Datasheet
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    CL26 350 / 250 65 / 40 1.01 / 1,57 1,1 / 0,8 450 / 382 / 374 Datasheet
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    CR400BW 400 90 1,97 1,4 623 / 405 / 431 Datasheet
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    RETROFIT INSTALLATION  

    Designed for internal turbine installation as part of a defined dry-air strategy, supporting climate stabilisation within the tower. 

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    APPLICATION KNOW-HOW

    Developed for onshore wind turbines exposed to humidity fluctuations, salt contamination (coastal onshore) and standstill-related condensation risk. 

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    ADSORPTION DRYING PRINCIPLE 

     Rotor-based adsorption dehumidification providing stable moisture removal across varying operating conditions, including reduced ventilation periods. 

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    WIND-ADAPTED DESIGN 

    Engineered for turbine environments and integrated as a defined internal installation rather than a temporary floor-standing device. 

    Frequently Asked Questions

    For our full FAQ section you can go to www.cotes.com/FAQ 

    On this page we highlight some of the more frequently asked questions from customers.

     

    What is the CR400BW used for in wind turbines?
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     The CR400BW is used to stabilise internal tower humidity in larger turbines or where higher moisture loads are present. It supports protection of electrical cabinets, structural components and internal air volume. 

    The CR400BW provides significantly higher dry-air capacity (400 m³/h vs. 100 m³/h) and regeneration airflow (90 m³/h vs. 40 m³/h), making it suitable for larger tower volumes. 

     The CR400BW is positioned for onshore wind retrofit applications. Offshore installations typically require engineered overpressure systems such as the Cotes Wind Overpressure (CWO) family. 

    Humidity control reduces condensation, limits corrosion risk and stabilises insulation resistance during turbine restart after standstill.