Ronstan Series 50 All Purpose Block - Single Stand Up

Enhance your boat's performance and reliability with the Series 50 All Purpose Block - Single Stand Up. Engineered for both cruising and racing, this versatile block offers exceptional durability, self-lubricating capabilities, and easy installation to meet the demanding needs of marine applications.

Key Features

• High Working Loads: Capable of handling exceptionally high loads, ensuring reliable performance under demanding conditions.
• Low Maintenance: Designed for minimal upkeep, providing a long service life even in harsh marine environments.
• Self-Lubricating Sheave: Constructed with Acetal polymer sheaves that ensure low friction and extreme durability for smooth operation.
• Captive Lock™ Universal Head: Offers versatile mounting options with the ability to fix in two planes or allow free swiveling as needed.
• Slotted Pin Shackle: Eliminates fouled lines, enhancing safety and performance during use.
• Easy Mounting: Compatible with 2 x 5mm (3/6") fasteners for straightforward installation (fasteners not supplied).

Applications

The Series 50 All Purpose Block is ideal for a variety of marine applications, offering reliable performance on boats of different sizes:

• Mainsheet and Halyard: Perfect for managing mainsheets and halyards, ensuring smooth control of sails.
• Vang and Spinnaker Lines: Handles control lines for vangs and spinnakers on boats up to 10m (33ft).
• S60 Applications: Suitable for boats up to 12m (40ft), providing enhanced control systems.
• Purchase Systems: Typically used in direct 4:1 purchase systems such as mainsheets and boom vangs.
• Fine-Tuning Tackle: On larger boats, facilitates fine-tuning of mainsheet tackles, outhauls, cunninghams, checkstays, genoa lead pullers, and traveler controls.

Materials and Construction

Component	Material	Benefits
Load Strap	Grade 316 Stainless Steel	Offers superior strength and corrosion resistance, ideal for marine environments.
Cheeks	Impact and UV Resistant, Fiber Reinforced Nylon	Provides durability and resilience against harsh weather and handling.

Installation and Maintenance

• Mounting: Securely mount using 2 x 5mm (3/6") fasteners, ensuring a stable setup for your lines.
• Adjustable Cleat Arms: Quick-adjusting cleat arms require no tools for adjustments and fix securely in position for efficient handling.
• Becket Pin: The removable becket pin allows for easy line splicing prior to fitting, enhancing flexibility in setup.

Why Choose Series 50 All Purpose Block?

Whether you're a seasoned sailor or a boating enthusiast, the Series 50 All Purpose Block offers the reliability, strength, and versatility needed for optimal sail control and line management. Its high-quality materials and thoughtful design ensure that it meets the rigorous demands of marine applications, making it a trusted choice for your boat.

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.