Harken 57mm Carbo Ratchamatic Cheek Block

$193.58 (Ex. Tax)
$212.94 (Inc. Tax)
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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)57 mm
Length (mm)83 mm
Weight (g)89 g
Maximum line Ø (mm)10 mm
Fasteners (mm)M4 mm
Maximum working load (kg)227 kg
Breaking load (kg)907 kg
Holding power w/180 degree wrap 50 lb (23 kg)10:1 
FootnoteIncludes fasteners and mounting pad.
Harken Part Number: 2633