57mm Harken Automatic Ratchet Block x 1.5 Grip
The 57mm Harken T2 Ratchamatic is Harken’s newest block to feature the T2 line’s styling and soft-attachment system.
The weight of this high-strength block is only 71 grams.
This block has a specially designed sheave that gives the user 1.5 x more grip over a normal Harken ratchet sheave providing a total holding power of 15:1.
We would recommend using specifically created hard wearing jacketed ropes in these blocks to reduce rope wear.
Pressure on the line engages the ratchet mechanism, which switches seamlessly from free-running to ratchet mode. Unloaded main and jib sheets run out freely during mark roundings, and asymmetrical spinnaker sheets free instantly during jibes. T2 Ratchamatic blocks are clearly labeled with high-contrast directional markers for correct reeving and trimming direction.
Use for mainsheet and spinnaker systems on beachcats, dinghies, and sportboats.
A length of Spectra® line with a polyester cover is included.
Specification
- Sheave Ø - 57mm
- Length - 79mm
- Weight - 71g
- Maximum line Ø - 10mm
- Maximum working load - 227kg
- Breaking load - 907kg
- Holding Power - 15:1