Control Triple Block with Swivel Head

Advanced Multi-Purchase Control

The Lewmar Control Triple Block with Swivel Head is engineered to deliver efficient, precise handling of complex control systems where increased mechanical advantage is required. Designed for modern sailing rigs, it supports high-purchase arrangements that allow loads to be managed smoothly and accurately, enhancing control across demanding trimming and adjustment tasks.

Triple-Sheave Efficiency

Featuring a compact triple-sheave configuration, the block enables significant load reduction within a space-efficient footprint. Even load distribution across the three sheaves improves system efficiency while reducing effort at the line, making it ideally suited to cascades, fine-tune systems, and other control applications requiring incremental adjustment under load.

Swivel Head Alignment

The integrated swivel head allows the block to self-align with changing lead angles, minimising side-loading and unnecessary friction. This adaptive movement ensures consistent rope flow and protects both rope and hardware from uneven wear, particularly in dynamic systems where line direction varies during operation.

Smooth, Consistent Performance

Designed to minimise friction and deliver predictable rope movement, the block provides responsive, controlled operation during trimming and easing. The combination of triple sheaves and a freely rotating swivel head supports refined load management, reduced handling effort, and reliable performance over extended sailing periods.

Installation & Application

Well-suited to high-purchase control cascades, fine-adjustment systems, and performance-led deck layouts, the Lewmar Control Triple Block with Swivel Head integrates easily into both new builds and professional refits. Its compact versatility makes it a trusted solution for cruising and racing yachts alike, backed by Lewmar’s proven deck-hardware expertise.