Ronstan Series 50 All Purpose Block - Double

Experience unparalleled performance and reliability with the Series 50 All Purpose Block - Double. Specifically designed for marine and boating applications, this high-quality block ensures smooth operation whether you're cruising the high seas or racing through challenging waters.

Series 50 All Purpose Block - Double

The Series 50 All Purpose (AP) Block is the ultimate solution for a wide range of marine applications. Featuring self-lubricating Acetal polymer sheaves combined with polished stainless steel races, this block handles both dynamic and high static loads with ease. Its durable construction guarantees a long service life, making it the ideal choice for sheets, halyards, and control lines used in both cruising and racing environments. Additionally, the swivel shackle head allows for full 360-degree rotation, preventing line fouling and ensuring efficient sail control.

Features

• Exceptionally High Working Loads: Capable of handling heavy-duty tasks with ease, ensuring reliable performance under demanding conditions.
• Low Maintenance & Long Service Life: Designed for durability and minimal upkeep, reducing the need for frequent replacements.
• Self-Lubricating Acetal Polymer Sheave: Ensures low friction and extreme durability, enhancing overall efficiency and longevity.
• Slotted Pin Shackle: Eliminates fouled lines, allowing for smoother and more reliable operation.

Applications

• Mainsheet and Halyard Applications: Ideal for vang and spinnaker control lines on boats up to 33ft (10m), providing precise sail control.
• S60: Suitable for boats up to 40ft (12m), offering robust performance for larger vessels.

Materials

• Grade 316 Stainless Steel Load Strap: Provides superior strength and corrosion resistance, ensuring reliable performance in harsh marine environments.
• Impact and UV Resistant, Fiber-Reinforced Nylon Cheeks: Enhance durability and performance, maintaining integrity against the rigors of marine use.

Specifications

Specification	Details
Sheave Diameter	2" / 50 mm
Max Rope Diameter	1/2" / 12 mm
Pin Diameter	1/4" / 6 mm
Maximum Working Load	2,200 lb / 1,000 kg
Breaking Load	4,410 lb / 2,000 kg
Weight	9.0 oz / 255 g

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.