Ronstan RF41300 Series 40 Triple All Purpose Block with Swivel Head

Series 40 All Purpose Block - Triple - Swivel Head

Features:

• Exceptionally high working loads
• Low maintenance, long service life
• Self-lubricating sheave
• Slotted pin shackle eliminates fouled lines
• Two way head post
• Spare parts - RF41010 Replacement Becket Pin, RF150 Shackle

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.

Applications:

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

Materials:

• U.V. stabilised Acetal sheaves
• Impact and U.V. resistant, fibre reinforced Nylon cheeks
• Grade 316 stainless steel bearing race
• Grade 316 stainless steel load strap and head fitting
• Sheave: UV stabilised acetal
• Cheeks: Impact modified, fiber reinforced and UV stabilized nylon

Ronstan RF41300 Series 40 Triple All Purpose Block with Swivel Head is a durable marine line-handling block designed for cruising sailors, racing crews, one-design classes, sportsboats, and off-the-beach catamarans up to 26 feet. Its triple-sheave configuration supports mainsheet, halyard, vang, and spinnaker control line applications, while the swivel head helps provide versatile line direction and routing on deck.

Built for demanding sailing environments, this all purpose block combines self-lubricating Acetal polymer sheaves with polished stainless steel races. The design performs with both dynamic loads and high static loads, making it a practical choice for frequently adjusted control lines as well as applications requiring dependable load handling. UV-stabilized materials and stainless steel components support low maintenance and a long service life in marine use.

The slotted pin shackle helps eliminate fouled lines, while the two-way head post supports flexible installation and operation. An impact- and UV-resistant, fiber-reinforced Nylon cheek construction adds durability to the block assembly. The Grade 316 stainless steel bearing race, load strap, and head fitting provide corrosion-resistant metal components for sailing applications. Spare parts are available separately, including the RF41010 Replacement Becket Pin and RF150 Shackle.

Key Features:

• Exceptionally high working loads for demanding sheet, halyard, and control line applications
• Triple self-lubricating Acetal sheaves running on polished stainless steel races
• Swivel head with two-way head post for flexible line alignment
• Slotted pin shackle helps eliminate fouled lines
• UV-stabilized, impact-resistant construction for cruising and racing use
• Low-maintenance design intended for a long service life

Product Details:

• Brand: Ronstan
• Series: 40
• Part Number: RF41300
• Product Type: Triple all purpose block with swivel head
• Sheaves: UV-stabilized Acetal
• Cheeks: Impact-modified, fiber-reinforced, UV-stabilized Nylon
• Bearing race, load strap, and head fitting: Grade 316 stainless steel
• Applications: Mainsheet, halyard, vang, and spinnaker control lines
• Intended use: Off-the-beach catamarans, one-design classes, and sportsboats up to 26 feet
• Replacement parts: RF41010 Replacement Becket Pin and RF150 Shackle

Choose the Ronstan RF41300 for a versatile, durable block solution built to support reliable line handling across a wide range of sailing applications.

SEO META DESCRIPTION: Shop the Ronstan RF41300 Series 40 triple swivel head block for durable, low-maintenance line handling on cruising and racing sailboats.

Features:

• Working Load: Designed to accommodate exceptionally high working loads in demanding sailing applications.

• Triple Sheaves: Self-lubricating UV-stabilized Acetal sheaves run on polished Grade 316 stainless steel races.

• Swivel Head: Two-way head post supports flexible line direction and routing.

• Slotted Pin Shackle: Helps eliminate fouled lines during use.

• Durable Construction: Impact- and UV-resistant fiber-reinforced Nylon cheeks with Grade 316 stainless steel load components.

• Sailing Applications: Suitable for mainsheets, halyards, vangs, and spinnaker control lines on boats up to 26 feet.