Specifications
| Name | Rotary Drilling Rig | ||
| Model | GR80 | ||
| Engine | Model | YC6J180L-T21 | |
| Power | Kw/rpm | 132/2200 | |
| Hydraulic System | Main pump Model | K3V112DT | |
| Max pressure | Mpa | 32 | |
| Pressurizing System | Max pressurizing force | KN | 240 |
| Max pulling force | KN | 240 | |
| Pressurizing cylinder stroke | mm (in) | 3000 (118.2) | |
| Power Head | Motor displacement | ml/r | 107+107 |
| Max output torque | Kn.m | 85 | |
| Working speed | rpm | 22 | |
| High speed mud throwing | rpm | 65 | |
| Chassis | Crawler plate width | mm (in) | 600 (23.6) |
| Chassis length | mm (in) | 4550 (179.3) | |
| Traveling speed | m (ft) /h | 3200 (10500) | |
| Traveling motor model | TM60 | ||
| Mast | Left and right inclination | degree | ±5˚ |
| Front inclination | degree | 5˚ | |
| Rear inclination | degree | 90˚ | |
| Main Winch | Motor model | TM40 | |
| Max lifting force | KN | 240 | |
| Wirerope diameter | mm (in) | 26 (1.03) | |
| Wirerope length | m (ft) | 43 (141.1) | |
| Lifting speed | m (ft)/min | 85 (278.8) | |
| Auxiliary Winch | Max lifting force | KN | 70 |
| Wirerope diameter | mm (in) | 12 (0.47) | |
| Wirerope length | m (ft) | 33 (108.3) | |
| Lifting speed | m (ft)/min | 40 (131.2) | |
| Drill Pipe | Locking Pipe | mm (in) | ø299 (11.8) |
| Operating Data | Max drilling depth | m (ft) | 26 (85) |
| Max drilling diameter | m (ft) | 1.2 (4.0) | |
| Transport | Length*Width*Height | m (ft) | 12*2.8*3.45 (39.4*9.2*11.4) |
| Weight | kg (lb) | 28000 (61730) | |
| Parameters are subject to change without prior notice. | |||
GR80 Rotary Drilling Rig Features and Advantages:
Gookma rotary drilling rig includes many core technologies, it leads the trend of medium and small rotary drilling machine. 1.High Speed Mud Dumping The high speed mud dumping function is realized through the unique design of the power head. With both strong strength and high speed, it obtains many advantages in all working conditions, working efficiency is 20% higher than other products.
2.Visual Human-machine Interface With the visual human-machine interface, the information or working conditions are visual, to make the operation more direct and easy. The core parts have time-delay settings, makes the operation more smoothly, reduce parts shocking, and prolong life of the machine. 
3.Convenient Maintenance and Repairing Electromechanical design, makes the machine is of easy maintenance and repairing, water proof and safe, and high reliability. 4.Advanced Design The machine is developed by advanced designing software and force analysis software, it can display more directly the stress analysis area of the product structure, so as to optimize the product structure. 
5.Safety Performance Synchronous operation function of return rope, prevent from laying of drilling tools accidentally. The drill rod equips with anti punching device, which has posterior image function. 6.Economy Efficiency Fast working speed, long life of components, low repairing rate, low fuel consumption, make the machine of superior comprehensive economy efficiency. 7.Fast Delivery Professional manufacturing system ensures the total quality and fast delivery of the machine. 
Applications
Gookma rotary drilling rig is widely applied in many holing construction projects, such as highway, railway, irrigation, bridge, power supply, communication, municipal, garden, house, water well construction etc., and has been enjoying high reputation among customers.
Production Line
