JK-DR350 Water Well Drilling Rig
The JK-DR350 pneumatic DTH drilling rig is capable of drilling up to 325mm diameter holes for 
| The Main Parameters | |
| Model | JK-DR350 |
| Weight | 9T |
| Bore diameter | 140-325mm |
| Drilling depth | 350m |
| Stroke | 6.6m |
| Travelling speed | 2.5km/h |
| Gradeability | 30% |
| Power | 84KW |
| Rated pressure | 1.7-3.3mpa |
| Air consumption | 17-35m³/min |
| Drill rod diameter | Φ89, Φ102 |
| Drill rod length | 1.5m 2.0m 3.0m 6m |
| Elevating capacity | 20T |
| Swing speed | 55-115rpm |
| Swing torque | 6200-8500N.M |
| Dimensions | 5900*2000*2850mm |
1. The engine uses YUCHAI 84 KW turbocharged engine;
2. Walking Type: crawler mounted ,trailer mounted for choice.
3. Hydraulic oil pump:Parallel gearbox design separates the oil pump unit, the power supply is adequately distributed, the hydraulic system is uniquely designed, and the maintenance cost is small;
4.Rotary head device:gearbox integrated casting, dual motor power, large torque, durable, low maintenance costs;
5.Drilling machine chassis:professional digging chassis, durable, heavy bearing, wide chain plate, less damage to hard roads;
6.Lifting force:design composite tower, 6.6m long stroke, double cylinder lift capacity 24 ton.
7. Each rig is equipped with a relief valve to raise the boom to protect the cylinder and ensure work safety;
8. Each hydraulic oil pipe is covered with a protective jacket to make the oil pipe last longer.
