57mm Airblocks®
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57mm Airblocks®

( Harken )


57mm Airblocks®

Use 57 mm Black Magic® AirBlocks® on offshore boats. These strong, lightweight blocks are sculpted aluminum, with Torlon® rollers and carbon-black balls for strength and UV protection. Rollers are housed in a unique center cage and are isolated for less friction. Blocks feature a three-way head system and come in high- and low-load configurations.

Use for:
Sheets
Halyards
Running backstays
Control lines

Product #
 Description Max. working load (kg) Breaking load (kg)
1950 57 mm Block 750 1500
1951 57 mm Block with Becket 750 1500
1952 57 mm Double Block 1250 2500
1954 57 mm Triple Swivel Block 2200 4400
1958 57 mm High-load Block 1134 2268
1959 57 mm High-load Block with Becket 1134 2268
1960 57 mm High-load Double Block 1633 3267
1961 57 mm High-load Double Block with Becket 1633 3267
1965 Stand-up High Load Block-57MM 1134 2268
3195 57 mm Single Loop Block 1134 2268