ZEGA UJ21DH Face drilling/Bolting Rig
| Technical specifications | |
| Hole diameter range（mm) | 41-102 |
| Hole depth (mm) | 5,270 |
| Drill rod size & length（mm) | T38-H35-R32*5,525 |
| Face drilling tunnel size (H x W) (m) | 11.9×9.5 |
| Bolting tunnel size (m) | 19.3×13.2 |
| Drilling coverage area (m2) | 96（Face drilling）/116（Bolting） |
| Turning radius (mm) | inner R3,321 / outer R6,450 |
| Dimensions（L×W×H）（mm） | 15,294×2,300×3,147 |
| Weight（T） | ≤18 |
| Drifter | |
| Model | ZY104M |
| Impact power（kW) | 20 |
| Max. torque（Nm) | 680 |
| Impact frequency (Hz) | 60 |
| Rotation speed (rpm) | 0-340 |
| Weight (Kg) | 170 |
| Air compressor | |
| Model | Screw air compressor |
| Working pressure (bar) | 10 |
| Rated FAD | 106CFM |
| Diesel engine | |
| Model | Deutz Euro-Stage V |
| Rated power | 215Hp（2200rpm） |
| RPM (r/min) | 2200 |
| Feed | |
| Total length (mm) | 7244 |
| Feeding length (mm) | 5270 |
| Extension length (mm) | 1800 |
| Tramming | |
| Tramming Speed (km/h) | Forward 36/24/12/7;reverse 28/8.5 |
| Gradeability (degree) | 15° |
| Articulated steering angle (degree) | ±34° |
| Ground clearance (mm) | 400 |
| Hydraulic jacks | 4 EA |
| Fuel tank volume (L) | 440 |
| Boom | |
| Parallel holding | Complete |
| Boom swing angle L / R (degree) | ±45° |
| Boom lifting angle (degree) | +68°/-45° |
| Feed tilt angle (degree) | +3/-90 |
| Feed roll-over (degree) | 360 (Spiral) |
| Boom extension (mm) | 1600 |
| Water system | |
| Flow rate (L/min) | 23 |
| Water tank capacity (L) | 900 |
| Cooling system | Air cooling |
