Harken Aluminium Loop Block 3214 - 57mm

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. The sheave center carries primary load, allowing a smaller, lighter weight block. The soft-attachment loop block has a removable deadend post for attachment to a padeye. Lashings can also be used.

Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.

Specifications

• Sheave diameter: 2 1/4" (57 mm)
• Maximum line diameter: 7/16" (12 mm)
• Maximum working load: 2500 lb (1134 kg)
• Breaking load: 5000 lb (2268 kg)
• Length: 3" (76 mm)
• Weight: 3.23 oz. (92 g)

Technical File

Instruction Manual