Harken 57mm Red Sheave Swivel Ratchamatic Block

SKU: 2625-RED

The Carbo Ratchamatic® is a load-sensing ratchet block that 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.


Sheave Ø (mm): 57 mm Sheave Ø (in): 2 1/4 in Length (mm): 103 mm Length (in): 4 1/16 in Weight (g): 104 g Weight (oz): 3.7 oz Shackle pin Ø (mm): 5 mm Shackle pin Ø (in): 3/16 in Maximum line Ø (mm): 10 mm Maximum line Ø (in): 3/8 in Maximum working load (kg): 227 kg Maximum working load (lb): 500 lb Breaking load (kg): 907 kg Breaking load (lb): 2000 lb Holding power: 10:1
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