Jinzhou City Shitan Machinery Equipment CO. LTD.
| Payment Terms | L/C, D/A, D/P, T/T, Western Union |
| Supply Ability | 2000 sets per year |
| Delivery Time | 7-10 days |
| Packaging Details | Standard Export Package |
| Type | DTH electric drilling rig |
| Usage | Water Well |
| Voltage | 380V |
| Dimension(L*W*H) | 2100*850*900mm |
| Weight | 230kg |
| Drilling depth | 30-60m |
| Hole diameter | 130-219mm |
| Color | Customised |
| Rotational speed | 38-55rpm |
| Working pressure | 0.5-1.45Mpa |
| Rotary speed | 0-78r/min |
| Air consumption | 6--12m3 / min |
| Brand Name | JINZHOU SHITAN |
| Model Number | ST-100 |
| Certification | ISO |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union | Supply Ability | 2000 sets per year |
| Delivery Time | 7-10 days | Packaging Details | Standard Export Package |
| Type | DTH electric drilling rig | Usage | Water Well |
| Voltage | 380V | Dimension(L*W*H) | 2100*850*900mm |
| Weight | 230kg | Drilling depth | 30-60m |
| Hole diameter | 130-219mm | Color | Customised |
| Rotational speed | 38-55rpm | Working pressure | 0.5-1.45Mpa |
| Rotary speed | 0-78r/min | Air consumption | 6--12m3 / min |
| Brand Name | JINZHOU SHITAN | Model Number | ST-100 |
| Certification | ISO | Place of Origin | China |
| High Light | 60m Water Well Drilling Rig Machine ，230kg Water Well Drilling Rig Machine ，DTH underground drilling rig | ||
Under Well Work Light Weight DTH Down the Hole Water Well Drilling Rig
Product Description:
A down-the-hole drill, usually called DTH by most professionals, is basically a mini jackhammer screwed on the bottom of a drill string. The fast hammer action breaks hard rock into small flakes and dust and is blown clear by the air exhaust from the DTH hammer. The DTH hammer is one of the fastest ways to drill hard rock. Now smaller portable drillcat drilling rigs with DTH hammers can drill as fast as much larger truck rigs with this newer technology.
Product Parameter:
| Model | ST-100 |
| Total Weight (kg) | 230 |
| Hole diameter (mm) | 80-150 |
| Hole depth (m) | 30-60 |
| Drilling direction | 45-85°with the ground |
| Disposable drilling depth (mm) | 1000 |
| Rotary speed (r/min) | 0-78 |
| Working pressure (Mpa) | 0.5-1.45 |
| Air consumption (m3 / min) | 6--12 |
| Matching power (kw) | More than 2.2 3.0 4.0 5.5 |
Drilling operation technology
① Proper casing shall be put into the hole to avoid hole collapse.
② When the drilling tool is lowered into the hole, first use low-pressure slow rotation to sweep the hole to the bottom. When the resistance of the drill bit in the hole is small, it can be turned into normal drilling. If the resistance in the hole is large, it cannot be forced to open the high speed.
③ During normal drilling, the drilling parameters shall not be changed arbitrarily, and the drilling tools shall not be lifted to prevent the core from being blocked.
④ When the core is found to be blocked, the drilling tool can be lifted appropriately. If the treatment is ineffective, the drilling tool should be lifted immediately.
⑤ If the formation is loose, the particle size of sand and gravel is very small, and it is difficult to coring, the pump volume should be reduced.
⑥ If the drilling speed of sand and gravel suddenly accelerates, it may be to drill into the sand layer or the gravel layer with small particle size. It is not necessary to change the drilling parameters, but the pump volume should be reduced as much as possible.
⑦ In order to ensure that the core is drilled into thin sand and mud layers, it is best to drill more than 10 cm into the pebble layer after drilling. If the sand layer is thick, when one round of drilling cannot be penetrated, the pump should be stopped at the end of the round to dry drilling for more than 10 cm and then lift the drill to prevent the core from falling off.
⑧ Carefully operate during drilling, and often observe whether the water supply system is unblocked and whether the water pump operates normally. When there is no slurry return in the hole, slurry breaking shall be prevented. In case of sudden increase in pump pressure, immediately lift the drill for inspection to prevent burning.
⑨ when drilling and sampling in important hole sections, the drill rod should be slowly lifted and screwed down to prevent the core from falling off. When withdrawing the core, the drill bit should be removed and then the core should be gently poured out.
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
2010
Total Annual:
8000000-15000000
Employee Number:
100~120
Ecer Certification：
Verified Supplier
Jinzhou City Shitan Machinery Equipment CO. LTD. is a professional production and processing company for core drilling rigs, crawler drilling rigs, various track chassis, various types of mud pumps, various track transport vehicles, etc. It is one of the outstanding manufacturers of si... Jinzhou City Shitan Machinery Equipment CO. LTD. is a professional production and processing company for core drilling rigs, crawler drilling rigs, various track chassis, various types of mud pumps, various track transport vehicles, etc. It is one of the outstanding manufacturers of si...
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