Research Article
Roof Control Technology of Mining Roadway under the Influence of Advanced Supporting Pressure
Table 2
The main technical characteristics of single hydraulic prop.
| | Model | Rated work resistance (kN) | Rated work hydraulic (MPa) | Setting force (kN) | Pump station hydraulic (kN) | Maximum height (mm) | Minimum height (mm) | Stroke (mm) | Stroke base area (cm2) |
| | DZ-35 | 200 | 25.5 | 118～157 | 15～20 | 3500 | 2700 | 800 | 113 | | DZ-28 | 250 | 31.8 | 118～157 | 15～20 | 2800 | 2000 | 800 | 113 |
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