product
mouseover to enlarge

57 mm Black Magic

57 mm Aluminum Block — German Admirals Mainsheet System

Part No. HC7798
  Not available on-line please contact Harken UK
Sheave Ø (mm)57 mm
Maximum line Ø (mm)12 mm
Maximum working load (kg)2200 kg

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.

Sheave Ø (mm)57 mm
Weight (g)265 g
Shackle pin Ø (mm)8 mm
Maximum line Ø (mm)12 mm
Maximum working load (kg)2200 kg
DWG: HC7798.DWG (open/save)
DXF: HC7798.DXF (open/save)
IGS: HC7798.IGS (open/save)

DO NOT use Harken equipment for human suspension unless product is specifically certified and labeled for such use.

  • United States
  • Australia
  • France
  • Italia
  • New Zealand
  • Polska
  • Sverige
  • UK