Pneumatic loader ГП-0.25А (similar to ГП-0,25)
The loader is meant for loading of shot rock to hoisting vessels during tunnelling and deepening of mines vertical shafts, clearing of shaft bottom sumps, sinking of dummy shafts of 4 to 9 m diameter of all depths.
| Technical performance , м3/мин, no less than | 0,46 |
| Grab capacity , м3 | 0,25 |
| Duration of digging cycle, average, s | 33 |
| Maximum lumpiness of rock , mm, no more than | 250 |
| Operating pressure in the pneumatic system, kgs/sm2 | 3…6 |
| Loader lifting capacity, kg•f/H | 500 (4900) |
| Piston diameter of the pneumatic hoist , mm | 260 |
| Pneumatic hoist stroke , м | 2,47 |
| Connecting hoses diameter , mm | 25 |
| Overall dimension in working position, m: | |
| open grab diameter | 1,642 |
| closed grab diameter | 1,15 |
| loader height (max) | 7,757 |
| loader height (min) | 7,347 |
| Overall dimensions in transport position: | |
| length, м | 3,185 |
| grab weight as delivered, kg | 1090 |
Pneumatic loader ГП-0.25А (similar to ГП-0,25)