Harken
Harken 57mm Ratchamatic® Block — Swivel, Cam Cleat 2627 Lopez Block
€259.95
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The Carbo Ratchamatic® is a load-sensing ratchet block that rolls freely in both directions under low loads and automatically engages the ratchet as loads increase. Shifting between ratchet and light-air modes is seamless.
Also known as a Lopez Block it is great for sheeting systems and downhauls and regularly used on small keelboats such as the J24.
| Sheave Ø (mm) | 57 mm |
| Sheave Ø (in) | 2 1/4 in |
| Length (mm) | 103 mm |
| Length (in) | 4 1/16 in |
| Weight (g) | 266 g |
| Weight (oz) | 9.4 oz |
| Maximum line Ø (mm) | 10 mm |
| Maximum line Ø (in) | 3/8 in |
| Maximum working load (kg) | 136 kg |
| Maximum working load (lb) | 300 lb |
| Breaking load (lb) | 750 lb |
| Breaking load (kg) | 340 kg |
| Footnote | Maximum working loads and breaking loads for blocks based on cam strengths. |
| Shackle pin Ø (mm) | 5 mm |
| Shackle pin Ø (in) | 3/16 in |
| Holding power | 10:1 |
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