Universal opening block is designed for ropes Ř 8 - 12,5 mm, used for different puroposes in forestry. The most common way of use is as a support or corner block in cableway logging or, as a corner block or idle (doubling force) pulley, in the tractor skidding.
Technical datas:
Opened corner blocks are manufactured in three sizes.
| Maximum Payload | 22 kN | 37 kN | 60 kN |
| Max. Rope Diameter | 10 mm | 11,2 mm | 14 mm |
| Mass | 3,4 kg | 4,2 kg | 7,4 kg |
These blocks are light-weight, simple and easy-to-handle. For their choking, textile chokers are recommended