RF41200 - Ronstan Series 40 All Purpose Block - Double Block - Full Swivel Head

All purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Head swivels freely.

Features:

• Exceptionally high working loads
• Low maintenance, long service life
• Self-lubricating sheave
• Slotted pin shackle eliminates fouled lines
• Two way head post

Applications:

• Mainsheet
• Halyard
• Vang
• Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')

Materials:

• U.V. stabilized Acetal sheaves
• Impact and U.V. resistant, fiber reinforced Nylon cheeks
• Grade 316 stainless steel bearing race
• Grade 316 stainless steel load strap and head fitting

Specifications:

• Sheave Ø: 40mm(1-9/16")
• Max. Rope Ø: 10mm(7/16")
• Pin Ø: 5mm(3/16")
• M.W.L.: 600kg(1,320lbs)
• B. L.: 1,200kg(2,650lbs)
• Weight: 135g(4.8oz)

The Ronstan Series 40 All Purpose Double Block with Full Swivel Head is designed for IT environments requiring robust line management solutions. This component, identified by part number RF41200, is suitable for applications involving dynamic and high static loads, making it a versatile choice for various control line setups. It features self-lubricating Acetal polymer sheaves that operate on polished stainless steel races, contributing to consistent performance and extended service life. The design includes fiber-reinforced Nylon cheeks for impact and UV resistance, alongside Grade 316 stainless steel for the bearing race, load strap, and head fitting, ensuring durability in demanding conditions. The full swivel head and slotted pin shackle are intended to prevent fouled lines, simplifying installation and adjustments. This block is appropriate for managing sheets, halyards, vangs, and spinnaker control lines on vessels up to 8 meters (26 feet), including off-the-beach catamarans, one design classes, and sportsboats.