Harken 75mm Black Magic Air Loop Block
High-strength performance block optimised for soft attachment
The Harken 75mm Black Magic Air Loop Block is a compact, high-efficiency solution designed specifically for use with soft attachments. Ideal for high-load control systems on performance yachts, this version of the Black Magic Air block is engineered to handle lines up to 14mm, with a robust Safe Working Load (SWL) of 2268kg and a Breaking Load of 4536kg.
Soft Attachment Simplicity, Black Magic Power
This block is designed to be lashed, looped, or spliced into your system using high-strength fibre loops or strops—eliminating the need for shackles or metal connectors. This not only saves weight but also allows for flexible alignment and efficient load distribution, particularly useful on mainsheet bridles, cascade systems, or anywhere articulation is key.
High-Load Efficiency
The 75mm sheave spins on Torlon® roller bearings, housed in a precision centre cage to keep rollers evenly spaced and aligned—minimising friction under load. Captive Delrin® ball bearings handle side loads effectively, and all bearing systems are sealed within the block to eliminate the risk of loose components during servicing.
Minimalist and Serviceable
This block shares the core DNA of the Black Magic Air series: easy disassembly using a single hex wrench, corrosion-resistant fasteners, and no loose rollers or balls. It’s engineered for practical use at sea where quick maintenance is essential.
Durable and Lightweight
Side plates are crafted from hardcoat anodised aluminium, giving the block its iconic deep black finish while ensuring excellent protection against corrosion, UV degradation, and mechanical wear.
Specifications:
- Sheave Diameter: 75mm
- Maximum Line Diameter: 14mm
- Safe Working Load (SWL): 2268kg
- Breaking Load: 4536kg
- Configuration: Loop Block (soft attachment only)
Whether rigged into a dyneema loop, spliced to a control line, or mounted on a traveller, the Harken 75mm Black Magic Air Loop Block offers maximum strength, clean aesthetics, and ultra-low friction in a soft attachment format trusted by grand prix teams and offshore cruisers alike.
Spécifications
| Length (mm) | 100 |
| Cordage recommandé – Ø Max (mm) | 14 |
| Ø réas (mm) | 75 |
| Charge de travail (kg) | 2268 |
| Charge de rupture (kg) | 4536 |
| Poids (g) | 209 |
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