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Harken Block - Black Magic 57mm Double - Swivel (Low-Load) (3228)

SKU: HAR3228  |  Manuf. Code: 3228
List Price:  $486.20 USD
$427.95 USD

You save 12% ($58 off List)
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DESCRIPTION

The Black Magic 57mm Double - Swivel (Low-Load) #3228 is your go-to solution for smooth sailing with ease and precision. It's a fan favorite among performance racers and cruisers for handling key sail controls like mainsheet, runner, halyard, and spinnaker systems. You'll love how its design minimizes friction and keeps your lines from twisting.

Benefits

  • Lightweight and free-running for optimal performance.
  • Center cage with Torlon® roller bearings to reduce friction.
  • Swivel or lock shackle blocks for versatility.
  • Red isolators for easy identification as low-load blocks.
  • Durable 316 stainless steel shackles and components.

Crafted from premium materials like Torlon® rollers and 316 stainless steel, this double block is built to last. Its 57mm size makes it ideal for larger sailboat applications, delivering smooth and reliable operation. Compatible with a range of sailing gear, this block ensures efficiency and durability in demanding conditions.

Usage

Perfect for big boats and performance racing, this block is best used in mainsheet, runner, halyard, and spinnaker systems. It's designed to handle frequent action, making it a trusty companion for those who love to sail.

Our Part # HAR3228 | Mfr. Part # 3228

FEATURES

  • 57mm composite sheave diameter.
  • Double sheave for multiple lines.
  • Swivel head for optimal line alignment.
  • Lightweight, high-strength construction.
  • Ideal for low-load control systems.

KNOWLEDGE BASE

TECHNICAL INFORMATION

DescriptionImperialMetric
Sheave2 1/4 in57.0 mm
Length5 3/16 in132.0 mm
Weight12.0 oz342.0 g
Maximum Line1/2 in12.0 mm
Maximum working load2756.25 lb1250.0 kg
Breaking Load5512.5 lb2500.0 kg
Shackle Pin5/16 in8.0 mm