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Harken 57 mm Carbo Air Block Ratchet Block

Harken 57 mm Carbo Air Block Ratchet Block

  • Single Ratchet Block with Swivel and 150 Cam-Matic
  • Maximum Working Load: 300 lbs
  • Maximum Line Size: 3/8"
  • Item #: 
    Model #: 
    Shipping Weight: 
    0.55 Lbs.
    List Price: 
    Our Price:
    Status:      In Stock

    Made in the USA


     57mm Carbo Ratchet Block w/Cam Cleat


    • Provides precise on/off control with
    • Accessible and easy to operate on/off switches on both sides of the block
    • Carbo side plates provide lightweight line control
    • Cam assembly adjusts and locks in a wide range of positions for crew accessibility
    • On/Off switch operates from both sides
    • Sheaves offer balance between holding power and controlled easing


    • Maximum Working Load: 300 lb (136 kg)
    • Breaking load: 750 lb (340 kg)
    • Weight: 8.7oz (247g)
    • Sheave diameter: 2-1/4" (57 mm)
    • Maximum line size: 3/8" (10 mm)

    Note:  DO NOT use Harken Equipment for Human suspension.

    WARNING: This product MAY expose you to chemicals, which are known to the State of California to cause cancer, birth defects and/or other reproductive harm. For more information go to


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