Ronstan RF48200 Orbit 40mm Double Pulley – Swivel Shackle Head Block

The Ronstan RF48200 Orbit 40mm Double Pulley Block with a swivel shackle head is a lightweight, high-strength block designed for performance sail control systems on racing dinghies, sportsboats, and small keelboats. A part of the Ronstan Orbit Series, this block features reinforced polymer cheeks, acetal ball bearing sheaves, and a polished stainless steel shackle head for optimal load handling and smooth operation.

The double sheave configuration is ideal for controlling two lines in parallel, and the swivel shackle head provides full 360° rotation, ensuring correct line alignment under changing loads. With ultra-low friction and impressive strength-to-weight performance, the RF48200 is a go-to choice for competitive sailors.

Specifications:

• Sheave Diameter: 40mm

• Maximum Rope Diameter: 9mm

• Bearings: Acetal ball bearings for low friction

• Materials: Glass fibre-reinforced polymer cheeks, stainless steel shackle

• Configuration: Double pulley with swivel shackle head

• Applications: Mainsheets, vangs, halyards, control lines, traveller systems

• Features: Lightweight, corrosion-resistant, race-optimized Orbit design

Available now from Barton Marine NZ, your trusted source for Ronstan Orbit blocks and performance sailing gear.

• M.W.L. 600 kg
• B. L. 1200 kg
• Weight 118 g