EcoVantage Marine Catalog


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Harken 75 mm Black Magic, AirBlock Double swivel
Cat. No. HAR 3233
Weight 2 lbs
$813.37

1971 BLK-75MM DBL

Use 75 mm Black Magic® AirBlocks® on offshore boats. are 60% stronger and 30% lighter than our classic blocks.

The nylon resin sideplates are densely packed with long-glass fibers for a compact block with a high strength-to-weight ratio. Ball bearings, sheave and sideplates UV stabilized with black additive for maximum protection.

Blocks feature Cam-Lock or U-Lock locking systems to lock the shackle in front or side positions, or swivel to keep line from twisting.

The 75 mm Carbo has a safe working load of 1200 lbs (500 kg). It releases easily under load and is perfect for mainsheet systems on sport boats like the Melges 24, J/105 and Henderson 30.

Use for:
Main/jib sheets
Mainsheet fine-tune
Control lines
Vangs
Cunninghams
Outhauls


Description Double swivel
Sheave dia. (mm) 75
Length (in) 5 1/4
Weight w/shackle (oz) 25.7
Shackle pin dia. (in) 3/8
Max. line dia. - optimal (in) 1/2
Max. line dia. - max. (in) 9/16
SWL (lb) 7500
Breaking strength (lb) 15000






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