Harken

Harken 57mm HL Black Magic AirBlock

Harken 57mm HL Black Magic AirBlock

Brand: Harken
Part Number: 3215
$224.95

Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action: mainsheet, runner, halyard, and spinnaker systems. A center cage keeps Torlon® roller bearings separated and parallel to reduce friction. Shackle blocks lock in two directions or swivel to keep line from twisting.

Sheave Ø (mm)57 mm
Sheave Ø (in)2 1/4 in
Length (mm)119 mm
Length (in)4 11/16 in
Weight (g)152 g
Weight (oz)5.36 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)1134 kg
Maximum working load (lb)2500 lb
Breaking load (kg)2268 kg
Breaking load (lb)5000 lb


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