Ronstan Series 50 All Purpose Block - Triple for Marine and Sailing Applications

Series 50 All PurposeBlock - Triple

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 swiveling head post
• Snap fit removable becket pin

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 - Triple is a versatile and durable solution designed for a wide range of sailing and boating needs. Featuring a self-lubricating Acetal polymer sheave running on polished stainless steel races, this block offers exceptional performance under both dynamic and static loads. Its high working load capacity ensures reliable operation for sheets, halyards, vang, and spinnaker control lines on vessels up to 12 meters (40 feet) in length.

The head can be locked at 0 or 90 degrees by engaging the grub screw, providing flexibility for different rigging configurations. The lockable swiveling head post allows for smooth movement and easy line handling, while the snap-fit removable becket pin simplifies installation and maintenance. The slotted pin shackle prevents fouled lines, enhancing safety and efficiency during sailing maneuvers.

Constructed from high-quality materials, the load strap is made of Grade 316 stainless steel for strength and corrosion resistance, making it suitable for marine environments. The fiber-reinforced nylon cheeks are impact and UV resistant, ensuring longevity even in harsh conditions. Whether used on cruising or racing yachts, this all-purpose block provides reliable performance, minimal maintenance, and long service life, making it an excellent choice for sailors seeking a versatile and high-quality component.

Ideal for mainsheets, halyards, vang, and spinnaker control lines, the Ronstan Series 50 All Purpose Block - Triple offers a practical and efficient solution for boats up to 12 meters (40 feet). Its robust construction and thoughtful design features make it suitable for both professional racing and recreational sailing, ensuring smooth operation and durability over time.

Features:

• Exceptionally high working loads suitable for demanding sailing applications

• Low maintenance design ensures long service life

• Self-lubricating Acetal polymer sheave provides low friction and durability

• Slotted pin shackle prevents fouled lines during operation

• Lockable swiveling head post for flexible rigging configurations

• Snap fit removable becket pin for easy installation and maintenance