This Harken Carbo Ratchamatic 75 mm block is an automatic load-sensing ratchet block for efficient sheet handling on board.
The block free-runs in both directions at low loads and automatically engages the ratchet function at higher loads. This provides better control and holding power when the load increases.
With a 75 mm sheave, a maximum line diameter of 12 mm, and a 30:1 holding power, it is well-suited for demanding sailing where low friction and precise load management are essential.
Key features
Automatic load-sensing Ratchamatic function
Free-running in both directions at low loads
Ratchet function engages automatically at higher loads
75 mm sheave for lines up to Ø12 mm
30:1 holding power