Ronstan Series 40 All Purpose Block - Triple - Swivel Head

The Series 40 All Purpose Block - Triple - Swivel Head is engineered to deliver exceptional performance for a wide range of marine applications. Whether you're cruising or racing, this versatile block ensures reliable operation and longevity, making it an indispensable component for your sailing or boating needs.

Key Features

• Exceptional Load Capacity: Designed to handle high dynamic and static loads, ensuring safety and reliability under various conditions.
• Low Maintenance: Constructed with durable materials that require minimal upkeep, extending the block's service life.
• Self-Lubricating Sheave: Features an acetal polymer sheave that lubricates itself, reducing friction and wear.
• Slotted Pin Shackle: Prevents fouling of lines, enhancing ease of use and safety during operation.
• Two-Way Head Post: Allows for versatile movement and adjustment, accommodating different rigging configurations.
• Available Spare Parts: Includes RF41010 Replacement Becket Pin and RF150 Shackle to ensure continued performance and quick replacements when necessary.

Applications

The Series 40 All Purpose Block is ideal for a variety of sailing and boating tasks, including:

• Mainsheet: Controls the primary sail, enabling precise adjustments for optimal performance.
• Halyard: Raises and lowers sails with ease, ensuring smooth operation and handling.
• Vang: Manages the boom's vertical movement, providing better sail shape and control.
• Spinnaker Control Lines: Suitable for deploying and retracting spinnakers on off-the-beach catamarans, one-design classes, and sportsboats up to 8m (26ft), ensuring efficient sail management.

Materials and Construction

Component	Material
Sheave	U.V. stabilized Acetal polymer
Cheeks	Impact modified, fiber reinforced, and U.V. stabilized Nylon
Bearing Race	Grade 316 stainless steel
Load Strap & Head Fitting	Grade 316 stainless steel

Constructed with premium materials, the Series 40 All Purpose Block ensures durability and resistance against harsh marine environments. The UV-stabilized Acetal sheaves operate smoothly on polished stainless steel races, providing consistent performance even under heavy usage. Fiber-reinforced Nylon cheeks contribute to the block’s impact resistance, while Grade 316 stainless steel components prevent corrosion, ensuring a long-lasting service life.

Why Choose the Series 40 All Purpose Block?

Opting for the Series 40 All Purpose Block means investing in quality, reliability, and performance. Its robust design and superior materials make it suitable for both amateur sailors and seasoned professionals, providing peace of mind during every voyage.

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.