The Spinlock Jammer Block B63 features a robust design for reliable rope management, ideal for fast sail changes and ensuring optimal performance in the marine environment. Perfect for both cruising and racing sailors. Description The Spinlock Jammer Block B63 is a high-performance marine hardware solution designed for efficient rope management and control. Engineered with precision for both leisure and professional sailing, this jam cleat features an innovative locking mechanism that securely holds ropes in place under varying tension and load conditions. Key features include a robust construction utilizing high-strength materials that ensure durability and resistance to the harsh marine environment. The B63 is compatible with a wide range of rope diameters (8-12mm), making it versatile for applications on dinghies, cruisers, and racing yachts. Its unique design allows for quick and easy operation, enabling sailors to engage and release the jam easily, even in high-stress situations. The Spinlock Jammer Block B63 is particularly beneficial for managing mainsheets, halyards, and control lines, providing sailors with precise control and adjustable tension on their rigging. The lightweight structure reduces overall weight on board, contributing to improved vessel performance without compromising on strength. This product is manufactured according to stringent marine standards, ensuring reliability and longevity. The Spinlock Jammer Block B63 is an essential addition for any sailor looking to enhance their rigging systems with a dependable and efficient solution for managing line tension on the water.Specification Product Name Spinlock Jammer Block B63 Weight 0.365 kg Sheave Diameter 63 mm Maximum Working Load 1500 kg Breaking Load 3000 kg Material Composite/Siliconised Acetal Line Capacity 10 mm Operating Temperature -20°C to +70°C Certifications CE certified Applications Racing, Cruising
