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BARTON TUPHblox double blocks, made from high-quality Tufnol®, combine extreme strength with low weight. These 20mm double blocks are specifically designed for 8mm ropes and offer a breaking strength of 550 kg with a working load of 275 kg. The proven Tufnol material is seawater-resistant, UV-stable, and requires minimal maintenance – ideal for use on racing and cruising yachts.
The blocks feature a swivel shackle for flexible mounting and are available with or without a lower bail. The optional bail prevents the rope from unintentionally slipping out and increases operational reliability under dynamic loads.
| Item No. | execution | Ø Tau | Ø disc | BRL kg | WL kg |
|---|---|---|---|---|---|
| BTT00230 | without underwire | 8 mm | 20 mm | 550 kg | 275 kg |
| BTT00231 | with underwire | 8 mm | 20 mm | 550 kg | 275 kg |
Technical specifications: Sheave diameter 20mm, rope diameter 8mm, breaking load 550 kg, working load 275 kg, material Tufnol®, attachment swivel shackle.
The BTT00230 variant comes without a lower bar, while the BTT00231 comes with a lower bar for added safety during demanding maneuvers.