Harken 57mm Swivel Triple Ratchamatic Block

Item Number: 2629

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.


Footnote: Maximum working loads and breaking loads for blocks based on cam strengths. 

Sheave Ø (mm): 57 mm

Sheave Ø (in): 2 1/4 in

Length (mm): 103 mm

Length (in): 4 1/16 in

Weight (g): 421 g

Weight (oz): 14.9 oz

Shackle pin Ø (mm): 6 mm

Shackle pin Ø (in): 1/4 in

Maximum line Ø (mm): 10 mm

Maximum line Ø (in): 3/8 in

Maximum working load (kg): 680 kg

Maximum working load (lb): 1500 lb

Breaking load (kg): 1700 kg

Breaking load (lb): 3750 lb

Holding power: 10:1 

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