3256
125mm Block
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.
Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.
Technical specifications · Harken 3256
| Sheave diameter | 125 mm |
|---|---|
| Length | 254 mm |
| Weight | 1058 g |
| Shackle pin diameter | 12 mm |
| Maximum line diameter | 19 mm |
| Maximum working load | 4990 kg |
| Breaking load | 9979 kg |
Attachment loops are supplied separately.