Low-friction Carbo AirBlocks® are lightweight, strong, reliable—and affordable. Companions to the popular Harken® Black Magic® line, these small, compact blocks have very high working loads for safe, easy trimming.
Sheave Ø (mm)29 mm
Length (mm)66 mm
Weight (g)26 g
Shackle pin Ø (mm)4 mm
Maximum line Ø (mm)8 mm
Maximum working load (kg)150 kg
Breaking load (kg)454 kg
FootnoteMaximum working loads and breaking loads for blocks based on cam strengths.
Harken Part Number: 340
