• Harken Carbo 75mm Ratchmatic Block with shackle

The Symbol : 2683

Part No. 2683

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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) 75 mm
Sheave Ø (in) 2 15/16 in
Length (mm) 138 mm
Length (in) 5 7/16 in
Weight (g) 440 g
Weight (oz) 15.5 oz
Shackle pin Ø (mm) 6 mm
Shackle pin Ø (in) 1/4 in
Maximum line Ø (mm) 12 mm
Maximum line Ø (in) 7/16 in
Maximum working load (kg) 136 kg
Maximum working load (lb) 300 lb
Breaking load (kg) 340 kg
Breaking load (lb) 750 lb
Holding power 15:1
Footnote Maximum working loads and breaking loads for blocks based on cam strengths.



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