57mm Harken Carbo Ratchamatic Single, 150 Cam-Matic, Becket

The Harken 57 mm Carbo Ratchamatic with 150 Cam-Matic cleat and becket combines a load-sensing ratchet block with a cleat and dead-end. At light load the sheave runs freely in both directions; as load builds the ratchet engages automatically. The sheet can be cleated right at the block – handy for mainsheets on dinghies and catamarans.

Features

• Ratchet engages automatically under load, with a seamless transition
• Engagement point adjustable with an Allen key
• Holding power of the 57 mm sheave up to 10:1
• 150 Cam-Matic cleat and becket

Specifications

• Sheave diameter: 57 mm
• Length: 125 mm
• Weight: 275 g
• Max. line diameter: 10 mm
• Shackle pin diameter: 5 mm
• Maximum working load: 272 kp
• Breaking load: 680 kp

Applications

• Main and jib sheets
• Asymmetric spinnakers