Description
The Harken Midrange Block Series is engineered for the demanding loads of medium and large offshore boats. Built with a robust frame and precision-machined sheaves, these blocks deliver smooth, efficient trimming and releasing under any condition. The sheaves run exclusively on high-load ball bearing systems, ensuring effortless operation even under maximum strain.
Features
- High-Load Performance - Rugged design ideal for medium and large offshore yachts managing heavy-duty lines
- Ball Bearing System - Sheave runs on a high-efficiency bearing system for smooth trim and release under load
- Durable Construction - Marine-grade materials resist corrosion and wear for long-term reliability
- Versatile Options - Available in standard and Hexaratchet models for superior sheet control and grip
Specifications
| Types | Single Block | Triple Block | Triple Block w/Hexaratchet & Cam cleat |
| Sheave Ø (in) | 3" ( 76 mm ) | 3" ( 76 mm ) | 3" ( 76 mm ) |
| Length (in) | 6 1/8" ( 156 mm ) | 7 3/4" ( 197 mm ) | 7 3/4" ( 197 mm ) |
| Weight (oz) | 13 oz. ( 367 g ) | 36 oz. ( 1020 g ) | 49 oz. ( 1389 g ) |
| Maximum line Ø (in) | 9/16" ( 14 mm ) | 9/16" ( 14 mm ) | 9/16" ( 14 mm ) |
| Maximum working load (lb) | 1800 lb ( 816 kg ) | 3800 lb ( 1724 kg ) | 3800 lb ( 1724 kg ) |
| Breaking load (lb) | 5000 lb ( 2268 kg ) | 8500 lb ( 3856 kg ) | 8500 lb ( 3856 kg ) |
| Shackle pin Ø (in) | 5/16" ( 8 mm ) | 5/16" ( 8 mm ) | 5/16" ( 8 mm ) |
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