Harken 3228 57mm Double Black Magic Low-Load Block
HARKEN 3228
Double Black Magic® AirBlock® - 57mm NEW!
The entire line of Black Magic® AirBlocks® has been redesigned with a sleek new look. Their unique, performance-packed engineering remains exactly the same.
Used on offshore boats, this strong, lightweight block features high-load Torlon® roller bearings for a high strength-to-weight ratio and reduced wear. Rollers are housed in a center cage and stay parallel for low-friction efficiency. Sculpted hardcoat-anodized aluminum side plates protect sideload ball bearings. Dissimilar metals are isolated to minimize corrosion.
Use for:
Specifications:
Double Black Magic® AirBlock® - 57mm NEW!
The entire line of Black Magic® AirBlocks® has been redesigned with a sleek new look. Their unique, performance-packed engineering remains exactly the same.
Used on offshore boats, this strong, lightweight block features high-load Torlon® roller bearings for a high strength-to-weight ratio and reduced wear. Rollers are housed in a center cage and stay parallel for low-friction efficiency. Sculpted hardcoat-anodized aluminum side plates protect sideload ball bearings. Dissimilar metals are isolated to minimize corrosion.
Use for:
- Sheets
- Halyards
- Running backstays
Specifications:
- Sheave Diameter - 57mm (2-1/4")
- Max Line Diameter - 7/16" (12mm)
| Mfg No. | Description | Length | Shackle Pin Diameter |
Max Working Load |
Breaking Load |
Weight |
| 3228 |
Double / swivel / low-load |
5-3/16" (132mm) |
5/16" (8mm) |
2755 Lbs (1250kg) |
5510 Lbs (2500kg) |
12.05 oz. (342g) |
Harken 3228 57mm Double Black Magic Low-Load Block
Sale price$408.95
Regular price$465.00
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Harken 3228 57mm Double Black Magic Low-Load Block
Sale price$408.95
Regular price$465.00