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Black Magic Air Aluminium Low-Load Block — Swivel

$343.17$692.04 incl GST


Black Magic Air blocks are a top favourite 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 centre cage keeps Torlon® roller bearings separated and parallel to reduce friction. Shackle blocks lock in two directions or swivel to keep line from twisting.

Low-load blocks have red isolators. They use Torlon® rollers and 316 stainless steel shackles. Standard blocks have 17-4 PH stainless headposts.

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


SkuNameSheave Ø mm (in)Length mm (in)Weight g (oz)Maximum line Ø mm (in)Maximum working load kg (lb)Breaking load kg (lb)Shackle pin Ø mm (in)
322657 mm Black Magic Air Aluminium Low-Load Block — Swivel57 (2 1/4)119 (4 11/16)154 (5.44)12 (7/16)750 (1655)1500 (3300)6 (1/4)
324375 mm Black Magic Air Aluminium Low-Load Block — Swivel75 (2 15/16)129 (5 1/8)335 (11.82)14 (9/16)1361 (3000)2722 (6000)8 (5/16)

Additional information

Weight N/A

57mm, 75mm