Equipping your mainsheet system with Harken's Carbo Ratchamatic is akin to having a Tiptronic transmission on your car.
This load-sensing ratchet block rolls freely in both directions under low loads, and automatically engages the ratchet when the load increases. It's great for mainsheet and asymmetric spinnaker sheet trim. A simple adjustment with an hex key can customize the Ratchamatic to differ trimmers' strength.
This single is equipped with a 75mm (7/16 in) sheave and a becket. The holding power of the Ratchamatic is up to 15:1.
|Breaking Load (lbs)||4500|
|Breaking Load (kg)||2041|
|Max Line Size (in)||7/16|
|Max Line Size (mm)||12|
|Note||Holding Power with 180 degree wrap (50lb) - 15:07|
|Additional Notes||Weight with Shackle|
|Safe Working Load (lbs)||1800|
|Safe Working Load (kg)||816|
|Shackle Pin (in)||5/16|
|Shackle Pin (mm)||8|
|Sheave Diameter (in)||2.9375|
|Sheave Diameter (mm)||75|