Antal Mainsheet Block with Cam Cleat for E8/75

The Antal Mainsheet Block with Cam Cleat for E8/75 is the lower mainsheet block from Antal’s 8:1 tackle system for yachts up to approximately 40 feet. Designed for powerful, smooth mainsail control under higher loads, it features a 75 mm primary sheave for load-bearing, topped with a triple 60 mm block that includes an integrated becket to start the sheet cleanly from the base of the system.

With an integrated cam cleat, this block provides secure and accessible control of the mainsheet in a compact, efficient form. Sold individually, it is ideal for upgrading older systems or building a custom configuration using existing boom-end hardware.

Key Features

• Engineered for 8:1 Tackle Systems
  Offers exceptional mechanical advantage and fine sail adjustment, ideal for larger sail plans or higher wind load scenarios.
• Sheave Configuration with Becket
  • 1 × 75 mm sheave (lower, load-bearing)
  • 3 × 60 mm sheaves (upper triple block)
  • Integrated becket for clean sheet termination at the base
• Integrated Cam Cleat
  Mounted on the cheek of the lower block for responsive sheet handling and ease of trimming or releasing.
• Efficient Ball Bearing Sheaves
  All sheaves are fitted with dual ball bearings for smooth, low-friction performance under load.
• Durable Marine Construction
  Made from hard anodised aluminium and stainless steel for excellent strength and corrosion resistance.

Specifications

• Sheave Sizes: 1 × 75 mm (lower), 3 × 60 mm (upper)
• Becket: Integrated (on upper triple block)
• Cam Cleat: Integrated
• Rope Compatibility: Up to Ø12 mm
• Safe Working Load (SWL): 1000 kg
• Recommended Boat Size: Up to 40 ft (12 m)

Boom-End Block Requirement

To complete an 8:1 mainsheet system using this block, pair it with:

• 1 × Triple block (60 mm sheaves)
• 1 × Single block (60 mm sheave)

With the becket included in the lower assembly, no additional becket is needed on the boom blocks, simplifying the setup.

The Antal E8/75 lower mainsheet block delivers a high-load, high-efficiency solution for serious cruisers or racers seeking precise sail control with rugged, long-lasting gear.