CLGR® Open Type Pulley Block Double Sheave With Eye 7312, also known as Double Sheave Snatch Block, and Double Sheave Lifting Pulley Block, and Wire Rope Pulley Block.
This double sheave block features an open type design for easy rope insertion and cleaning. The open side allows the rope to be inserted directly into the sheave – no need to thread from the end.
Equipped with two sheaves, it allows the rope to be across multiple times, effectively increasing mechanical advantage for heavier lifting or pulling tasks.
Built for durability and smooth operation, this block is suitable for construction, industrial rigging, and marine use.
Available in various sizes and working load limits to meet different job requirements.
Brand | China CLGR® |
Type | Double Sheave Block 7312 |
Material | Steel |
Surface | Color Painted or Galvanized |
Size | 2″, 3″, 4″, 5″, 6″, 7″, 8″, 10″, 12″ |
Application | Lifting Equipment |

Part No. | Size | SWL/Ton | Diam | ∅ | L | A | B | C | Weight(KG) |
CR7312E-2 | 2 | 0.25 | 6mm | 49 | 217 | 58 | 52.5 | 11 | 0.75 |
CR7312E-3 | 3 | 0.5 | 8mm | 70.5 | 268 | 81 | 68.5 | 13 | 1.8 |
CR7312E-4 | 4 | 1 | 10mm | 97 | 330 | 112 | 79.5 | 16 | 3.05 |
CR7312E-5 | 5 | 1.5 | 13mm | 125 | 400 | 140 | 87 | 17 | 4.7 |
CR7312E-6 | 6 | 2 | 16mm | 146 | 460 | 168 | 114 | 22 | 7 |
CR7312E-7 | 7 | 3 | 19mm | 173 | 505 | 186 | 128 | 25 | 12.7 |
CR7312E-8 | 8 | 4 | 22mm | 200 | 535 | 212 | 128.5 | 26 | 16 |
CR7312E-10 | 10 | 5 | 25mm | 250 | 611 | 276 | 136 | 28 | 26 |
CR7312E-12 | 12 | 6 | 28mm | 300 | 661 | 326 | 133 | 28 | 32 |