



Barton Marine
Ronstan RF48109S Series 40 Soft‑Shackle Snatch Block
Ronstan RF48109S Soft‑Shackle Snatch Block – Series 40 Orbit™
The RF48109S is a premium Series 40 snatch block equipped with a soft‑shackle attachment and integrated becket hub. Lightweight yet ultra‑strong, it’s designed for high‑performance yachts and launch craft up to 8 m. Its rotating cheek plate allows it to open for loading line without detaching the soft shackle—perfect for fast line management during maneuvers.
Constructed with ball‑bearing technology and a nylon/glass‑filled frame, this snatch block offers class‑leading dynamic and static load ratings, outperforming traditional stainless-steel equivalents. It’s engineered for reliability, efficiency, and endurance in rugged New Zealand marine environments.
✅ Key Features:
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✔️ Soft‑shackle lashing attachment—no shackles required
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✔️ Rotating cheek plates allow quick line loading and secure lash options
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✔️ Series 40 2‑stage ball bearing system for minimal friction and smooth handling
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✔️ Integrated becket hub for tail splices or secondary lines
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✔️ Sheave diameter 40 mm, suits up to 10 mm rope (3⁄8″)
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✔️ Working load 400 kg / breaking load 800 kg, ideal for demanding boating setups
✅ Specifications:
Feature | Details |
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Model | RF48109S (Series 40 Soft‑Shackle Snatch) |
Attachment Type | Soft‑shackle lashing |
Sheave Diameter | 40 mm (1 9⁄16″) |
Max Rope Diameter | 10 mm (3⁄8″) |
Safe Working Load | 400 kg (880 lb) |
Breaking Load | 800 kg (1760 lb) |
Weight | ~47 g (1.7 oz) |
Bearings | 2‑stage ball bearing system |
Frame Material | Glass‑filled nylon |