ZGYX - 412B-1/416T-1/420B-1 Separated DTH Drill Rig
| Model | 420TA-1 | 425-1 | 430-1 |
| Weight | 5,550 kg | 6,230 kg | 6,440 kg |
| Dimensions (LxWxH) | 5,600×2,308×2,500 mm | 7,000×2,250×2,700 mm | 7,120×2,450×3,540 mm |
| Engine (standard) | Yuchai/74 kW | ||
| Rotation torque (MAX) | 3,200 N.m | 3,200 N.m | 3,500 N.m |
| Drilling hole diameter | Φ90-138 mm | Φ90-138 mm | Φ115-152 mm |
| DTH hammer(Standard) | 4" (inch) | 4" (inch) | 4" (inch) |
| Drilling rod | Φ76×3,000 mm | ||
| Diesel tank volume | 70 L | 80 L | 110 L |
