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[China]
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Address: Xiaoshang Village,Jinzhou City,Hebei province,China
Contact name:Anna
Jinzhou City Shitan Machinery Equipment CO. LTD. |
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350 Meters Depth 300mm Borehole Industrial Steel Crawler Mounted Drilling Rig
ST 350 Steel Crawler Mounted Drilling Rig Descrption
It is equipped with powerful hydraulic rock drills that offer high penetration rates, reliability, and excellent fuel economy,350 meters drilling depth and customized drilling hole diameter, it can be used to drill water well, agrecultural irrigation well, geothermal well and other type well holes. It is sepcial suitable for mountain area and rock stratum water sourcing project.
ST 350 Steel Crawler Mounted Drilling Rig Technical Information
| Drilling Rig | ST 350 |
Drilling depth | 350meters |
Dia.hole | φ140 - 325mm |
Advance Length one time | 6.6m |
Working pressure | 1.7-3.3MPa |
Air consumption | 17-35m³/min |
Length of rod | 1.5m,2m,3m, 6m |
Dia. Of rod | φ89,φ102,φ114 |
Lifting power | 24T |
Rotation torque | 6200-85000N.m |
Rotation Speed | 55-115r/min |
Diesel Engine | Yuchai |
Engine Power | 92Kw/2200rpm |
Travelling speed | 0-2.5 Km/h |
Climb capacity | 30° |
Weight | 9000kgs |
Dimension | 5900x2000x2850mm |
Application | Complicated geological conditions: Rock, Mud, Sand etc. |
The attentions in the drilling process
In the selection process, we should pay attention to the selection and use of lower bit. When we are operating the drill bit, we must pay attention to several aspects in order to better production and operation.
How can we do a good job in the maintenance of well drilling rig?
1. Pay attention to check whether the bolts and nuts of water and gas pipelines and various accessories of the drilling rig are firm at any time
2. . Always check the lubricating oil condition of the wind motor
3. . When the working face is immersed in water, a large-diameter drill head shall be used to insert the drill pipe when opening the hole, so that the drill pipe is 1-2 meters above the water surface to prevent mud and rock slag from falling into the hole
4. . The drilling rig is not allowed to reverse during drilling operation, so as to prevent the drill pipe from falling into the hole
5.. When the drilling rig stops working for a short time, a small amount of air pressure shall be given to prevent sediment from invading the interior of the percussion device of the drilling rig. If the drilling rig stops working for a long time, the percussion device shall be lifted 1-2m away from the hole bottom for fixation
