RF51200 - Ronstan Series 50 All Purpose Block - Double

Series 50 All Purpose Block - Double

Features:

• Exceptionally high working loads
• Low maintenance, long service life
• Self-lubricating Acetal polymer sheave ensures low friction and extreme durability
• Slotted pin shackle eliminates fouled lines
• Lockable swivelling head post

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 can be locked at 0° or 90° by engaging the grub screw in either the 0 or 90 degree position.

Applications:

• Mainsheet and halyard applications, vang and spinnaker control lines on boats to 10m (33ft)
• S60 - on boats up to 12m (40ft)

Materials:

• Grade 316 stainless steel load strap
• Impact and UV resistant, fiber reinforced Nylon cheeks

The Ronstan Series 50 All Purpose Block - Double, part number RF51200, is designed for marine applications requiring reliable line management. This double block features a self-lubricating Acetal polymer sheave, which runs on polished stainless steel races to ensure low friction under both dynamic and high static loads. Its construction includes a Grade 316 stainless steel load strap and fiber-reinforced Nylon cheeks, offering impact and UV resistance for extended service life.

This block is suitable for mainsheet and halyard applications, as well as vang and spinnaker control lines on boats up to 10 meters (33 feet). For S60 applications, it can be used on boats up to 12 meters (40 feet). The unit incorporates a slotted pin shackle to prevent fouled lines and a lockable swiveling head post that can be fixed at 0� or 90� to suit specific rigging configurations. It provides a durable and low-maintenance solution for various control line needs.