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Convenient and flexible adjustment of speed, torque, thrust axial pressure, reverse axial pressure, thrust speed, and lifting speed to match varying drilling conditions and construction technologies.
Convenient for taking over and unloading the drill pipe, shortening auxiliary time, and significantly facilitating follow-up drilling operations.
Supports down the hole, through air reverse circulation, air lift reverse circulation, cutting, cone, and pipe following drilling. Can install mud pumps, foam pumps, and generators as needed.
Full hydraulic drive and top drive rotary propulsion deliver fast drilling speeds. Down the hole hammer drilling technology in rock ensures high operational efficiency and lower single meter cost.
High outriggers allow easy loading and transportation directly without a crane. Crawler walking is optimized for movement in muddy fields.
Equipped with an efficient and durable oil mist device and pump to keep the high-speed running impactor lubricated at all times, extending its operational lifespan.
Positive and negative axial pressure valves can be adjusted to match varying impactor loads as the drill pipe depth increases, maintaining optimal impact efficiency.
Highly adaptable chassis configuration options: can be flexibly mounted on crawler chassis, truck chassis, or trailer chassis based on site needs.
| Item | Unit | SNR400 Specification |
|---|---|---|
| Max drilling depth | m | 400 |
| Drilling diameter | mm | 105-325 |
| Air pressure | Mpa | 1.2-3.5 |
| Air consumption | m3/min | 16-55 |
| Rod length | m | 4 |
| Rod diameter | mm | 89/102 |
| Main shaft pressure | T | 4 |
| Lifting force | T | 22 |
| Fast lifting speed | m/min | 29 |
| Fast forwarding speed | m/min | 56 |
| Max rotary torque | N.m | 8000/4000 |
| Max rotary speed | r/min | 75/150 |
| Big secondary winch lifting force | T | － |
| Small secondary winch lifting force | T | 1.5 |
| Jacks stroke | m | 1.6 |
| Drilling efficiency | m/h | 10-35 |
| Moving speed | Km/h | 2.5 |
| Uphill angle | ° | 21 |
| Weight of the rig | T | 9.8 |
| Dimension | m | 6.2*1.85*2.55 |
| Working condition | Unconsolidated formation and Bedrock | |
| Drilling method | Top drive hydraulic rotary and pushing, hammer or mud drilling | |
| Suitable hammer | Medium and high air pressure series | |
| Optional accessories | Mud pump, Centrifugal pump, Generator, Foam pump | |
The SNR400 drilling rig is capable of drilling vertical holes up to a maximum depth of 400 meters, making it ideal for deep water wells and monitoring wells.
The rig supports multiple drilling techniques, including down-the-hole (DTH) hammer drilling, reverse circulation by mud and by air, air lift reverse circulation, cutting drilling, cone drilling, and pipe following drilling.
The high outrigger chassis allows for easy loading and transportation directly onto trucks without requiring a crane. The crawler tracks also provide excellent stability and maneuverability in muddy field conditions.
Depending on user needs and terrain conditions, the SNR400 rig can be optionally mounted on a crawler chassis, a truck chassis, or a trailer chassis.
The rig integrates an efficient oil mist device and pump that keeps the high-speed running impactor continuously lubricated during operation, reducing wear and extending the tool's lifespan.
Yes, the positive and negative axial pressure valves can be manually adjusted to offset the weight of additional drill rods, ensuring the impactor maintains optimal impact efficiency throughout the drilling process.
