1. The rig adopts engineering crawler, hydraulic walking chassis, easy to move, more suitable for plain, plateau, hilly and other land forms. The chassis has four legs, and the drilling machine has small vibration and good stability during drilling.
2. Reverse circulation drilling rig is multi-functional, all key components are cost-effective products, and the system is equipped with pressure protection and alarm device.
3. the reverse circulation drilling rig has the actuators, the instrument is on the operation table, the operation is convenient and reliable.
4. The reverse circulation drilling rig adopts a unique drill frame, which has large drilling process, large anti-torsion capability, simple structure, convenient maintenance, easy relocation, convenient operation of the orifice, and construction of large top angle drilling.
| Model | HF400L | |
| Drilling depth (m) | ≤350 | |
| Drilling diameter (mm) | 350-1200 | |
| Spindle speed (r/min) | 5-22 | |
| Spindle power (kw) | 11×2 | |
| Spindle torque (N•m) | 36000 | |
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