29+Years
29+Years
9 Available
Condition: New
The Ronstan Series 25 Utility Block is a single lifting pulley with a swivel shackle head, designed for applications requiring reliable, lightweight, and maintenance-free operation. Constructed with Grade 316 stainless steel cheeks and UV-stabilized Acetal sheaves, this block ensures durability and extended service life. It is suitable for various systems on dinghies, such as vang, cunningham, and trapeze retriever setups, as well as leech line tackles and bunk adjusters on larger boats. The hollow rivets in the block head allow for the addition of shackles or a becket, providing flexibility for extra purchase. With a maximum working load of 150kg (330lbs) and a breaking load of 300kg (660lbs), the RF573 accommodates ropes up to 6mm (1/4") in diameter. This component addresses the need for an economical and robust solution in demanding marine or industrial environments where consistent performance and minimal upkeep are critical.
The Ronstan Series 25 Utility Block is designed to work with a maximum rope diameter of 6mm (1/4").
This utility block features Grade 316 stainless steel cheeks and UV-stabilized Acetal sheaves, ensuring durability and resistance to environmental factors.
The maximum working load limit (M.W.L.) for the Ronstan Series 25 Utility Block is 150kg (330lbs).
Yes, the hollow rivets in the block head are designed to allow for the fitting of shackles, which can also be used to add a becket for extra purchase.
RF573 - Ronstan Series 25 Utility Block - Single - Swivel Shackle Head
