ZT-21A HDD Rig
The key components of drilling rig hydraulic system are all imported or joint venture products, strong power and reliable performance, The rotary head is driven by double motors, high torque and high speed, The power head is equipped with ashackle floating device to protect the drill pipe thread. The thrusting and pulling use Rack and Pinion structure, stable performance.
Introduction
The key components of drilling rig hydraulic system are all imported or joint venture products, strong power and reliable performance, The rotary head is driven by double motors, high torque and high speed, The power head is equipped with ashackle floating device to protect the drill pipe thread. The thrusting and pulling use Rack and Pinion structure, stable performance.
Parameters
| Model | ZT-21A |
| Max torque(N.m) | 6500 |
| Rotation speed(rpm) | 0-230 |
| Max pulling/thrusting force(kN) | 210 |
| Pulling speed(m/min) | 0-65 |
| Commins engine(kW/rpm) | 113/2200 |
| Max mud pump displacement(L/min) | 240 |
| Max mud pump pressure(Mpa) | 8 |
| Entry angle(degree) | 12-20 |
| Walking speed(km/h) | 2-4 |
| Weight(kg) | 7500 |
| Dimension(mm) | 6200*2180*2250 |
| Rod size(mm) | φ60*3000 |
| Reamer size(mm) | φ200-700 |
Advantages
- · Rotation speed is very high, working efficiency increase dramatically. In reality test, rotation speed can reach 235 rpm.
- · The main pump is Italian CASAPPA triple pump, stable performance. Using flange-type joints, with good sealing performance.
- · By using serial parallel technology with invention patent, SANT double speed valve provides stable, efficient and reliable performance.
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