ST 30 Core Drilling Machine
ST 30 Core Drilling Rigs Machine Introduction
ST 30 is a small portable oil pressure feeding drilling machine, which is mainly used for general survey exploration, geophysical exploration, road and construction, blasting hole drilling and other drilling projects, shallow oil, natural gas and groundwater drilling, as well as embankment grouting, tunnel ventilation, drainage and other engineering drilling.
ST 30 Core Drilling Rigs Machine Technical Details
| Hole Diameter (mm) | 110 soil condition | 91 | 75 | 60 | 46 |
| Drilling Depth(m) | 5~10 | 10~15 | 15~20 | 20~25 | 30 |
| Hole Diameter(mm) | 30 |
| output speed(r/min) | 200~570 |
| Torque | 130N·m |
| Motor | model 1P75FA power:4.5KW speed:2000-3600r/min |
| Size | 600×650×2330mm |
| Total Weight | 95kg |
ST 30 Core Drilling Rigs Machine Advantages:
1.Hydraulic cylinder,high efficiency.
2.Wheel walking mechanism,very convenient for transport and adjusting the drilling rig level.
3.Pressure gauge display the condition of the bottom of the drill hole.
4.Diesel engine with electric starter,convenient and reduce the labor itensity.
ST 30 Core Drilling Rigs Machine Application:
It is a kind of light and multi-purpose micro-engineering rig which is suitable for geological survey, geophysical prospecting, advanced drilling, grouting, embedding and so on in industrial and civil construction, bridges, railways, highways, hydropower and other industries. Pieces of holes, playing blasting holes, check holes, small household wells and so on.
Soil Sampling Method :
1. Distribution: samples shall be taken according to the soil type and the distribution of crop varieties, and according to the different soil fertility. The sampling points are distributed in zigzag or snake shape, which should be as uniform and random as possible.
2. Determine the sampling position and depth: the sampling position and depth shall be determined according to the thickness of the cultivated layer. Generally, the sampling depth is 0-20cm
Soil samples can be taken any time throughout the year. It is important though to sample approximately the same time of the year. Late summer, or early fall, is a good time for most crops. This allows time for lime recommended to react and change the pH before the crop is planted.
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