57mm Harken Carbo Ratchamatic Block

The Harken 57mm Carbo Ratchamatic block is an automatic load-sensing ratchet pulleythat rolls freely in both directions under low loads and automatically engages the ratchet as loads increase. Shifting between ratchet and light-air modes is seamless with no adjustment needed.

This Harken pulley block is perfect for spinnaker sheets and ropes which need constant adjustment.

Comes with allen key to adjust the block and when it starts to kick in.

Specifications

• Sheave (mm) - 57mm
• Length (mm) - 103mm
• Weight (g) - 104g
• Shackle pin (mm) - 5mm
• Maximum line (mm) - 10mm
• Maximum working load (kg) - 227kg
• Breaking load (kg) - 907kg
• Holding power w/180 degree wrap 50 lb (23 kg) - 10:1