ZGYX - 831A/831B Underground Mining Rig
| Model | ZGYX-831A | ZGYX-831B |
| Feed total length | 3,100 mm | 3,600 mm |
| Drilling rod | T45*915 mm / 15 pc | T45*1,525 mm / 28 pc |
| Hole Depth.Max | 30 m | 50 m |
| Dimensions (LxWxH) | 9,200×1,700×2,700 mm | 9,200×1,850×2,700 mm |
| Turning radius | ( Inner) R2,800 / ( Outer) R6,000 mm | |
| Weight | ≤14 T | ≤16 T |
| Gradeability | 15° | |
| Tramming Speed | 12 / 4.5 km/h | |
| China IV Diesel engine | Cummins B3.9CS4-C110 / 81 kW (110 HP) | |
| China Ⅲ Diesel engine | Cummins QSB3.9-C100 / 74 kW (100 HP) | |
| Drifter | ||
| Model：ZY104MZ | Power：20 kW | Height over drilling center：88 mm |
| Electric motor | ||
| Power：55 kW | Voltage：380 V | |
