This Harken Carbo Ratchamatic 57 mm block with becket is an automatic load-sensing ratchet block for control lines where controlled holding power and free-running are important.
The block runs freely in both directions under low loads and automatically engages the ratchet function under higher loads. This makes it suitable for efficient and precise trimming in changing conditions.
The load sensor can be adjusted as needed, allowing the engagement to be customized to the sailor's preference and the specific application on board.
Key features
Automatic Ratchamatic ratchet function
Free-running at low loads
Adjustable load sensor
Hardkote-anodized and Teflon-impregnated sheave
Becket for attaching line ends
