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SNR800 drilling rig is a kind of medium and high efficient full hydraulic multifunctional water well drill rig for drilling up to 800m and is used for water well, monitoring wells, engineering of ground-source heat pump air-conditioner, blasting hole, bolting and anchor cable, micro pile etc. Compactness and solidity are the main characteristics of the rig which is designed to work with several drilling method: reverse circulation by mud and by air, down the hole hammer drilling, conventional circulation. It can meet the drilling demand in different geological conditions and other vertical holes.
The speed, torque, thrust axial pressure, reverse axial pressure, thrust speed and lifting speed of the drilling rig can be adjusted at any time to meet the requirements of different drilling conditions and different construction technologies.
It is convenient to take over and unload the drill pipe, shorten the auxiliary time, and is also conducive to follow-up drilling.
| Optional Configurations | |||
|---|---|---|---|
| Rig operation by truck or trailer or crawler | Mast extension | Breakout cylinder | Air compressor |
| Centrifugal pump | Mud pump | Water pump | Foam pump |
| RC pump | Screw pump | Drill pipe box | Pipe loader arm |
| Opening clamp | Support jack extension | ||
The drilling machine is driven by diesel engine, and rotary head is equipped with international brand low-speed and large-torque motor and gear reducer, feeding system is adopted with advanced motor-chain mechanism and adjusted by double speed. Rotating and feeding system are controlled by hydraulic pilot control which can achieve step-less speed regulation. Breaking out and in drill rod, leveling the whole machine, winch and other auxiliary actions are controlled by hydraulic system. The structure of rig is designed to reasonable, which is easy to operate and maintenance.
All kinds of drilling techniques can be used on this kind of drilling machine, such as down the hole drilling, through air reverse circulation drilling, air lift reverse circulation drilling, cutting drilling, cone drilling, pipe following drilling, etc. The drilling machine can install mud pump, foam pump and generator according to the needs of users. The rig is also equipped with a variety of hoists to meet the different needs of customers.
Due to full hydraulic drive and top drive rotary propulsion, it is suitable for all kinds of drilling technology and drilling tools, with convenient and flexible control, fast drilling speed and short auxiliary time, so it has high operation efficiency. The down the hole hammer drilling technology is the main drilling technology of the drilling rig in the rock. The down the hole hammer drilling operation efficiency is high, and the single meter drilling cost is lower.
Four hydraulic support jacks can level rapidly undercarriage to ensure the drilling accuracy. The support jack extension as optional can be easy to make the rig load and unload on truck as Self-loading by itself, which save more transportation cost.
Efficient and durable oil mist device and oil mist pump. In the process of drilling, the high-speed running impactor is lubricated all the time to extend its service life to a greater extent.
The best impact efficiency of all kinds of impactors has its best matching axial pressure and speed. In the process of drilling, with the increasing number of drill pipes, the axial pressure on the impactor is also increasing. Therefore, in the construction, the positive and negative axial pressure valves can be adjusted to ensure that the impactor can obtain more matching axial pressure. At this time, the impact efficiency is higher.
The rig can be mounted on crawler chassis, truck chassis or trailer chassis.
| Item | Unit | SNR800 Specification |
|---|---|---|
| Max drilling depth | m | 800 |
| Drilling diameter | mm | 105-550 |
| Air pressure | Mpa | 1.6-8 |
| Air consumption | m³/min | 16-96 |
| Rod length | m | 6 |
| Rod diameter | mm | 114 |
| Main shaft pressure | T | 8 |
| Lifting force | T | 43 |
| Fast lifting speed | m/min | 19 |
| Fast forwarding speed | m/min | 38 |
| Max rotary torque | N.m | 15000/7500 |
| Max rotary speed | r/min | 71/142 |
| Big secondary winch lifting force | T | － |
| Small secondary winch lifting force | T | 1.5 |
| Jacks stroke | m | 1.7 |
| Drilling efficiency | m/h | 10-35 |
| Moving speed | Km/h | 5 |
| Uphill angle | ° | 21 |
| Weight of the rig | T | 17.5 |
| Dimension | m | 6.2*2.25*2.85 |
| 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 | |
| Optional Configurations (Detailed Reference) | |||
|---|---|---|---|
| Rig operation by truck or trailer or crawler | Mast extension | Breakout cylinder | Air compressor |
| Centrifugal pump | Mud pump | Water pump | Foam pump |
| RC pump | Screw pump | Drill pipe box | Pipe loader arm |
| Opening clamp | Support jack extension | ||
