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[China]
Trade Verify
Address: Xiaoshang Village,Jinzhou City,Hebei province,China
Contact name:Anna
Jinzhou City Shitan Machinery Equipment CO. LTD. |
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ST 400 Large Torque 89mm Drilling Pipe Yuchai Engine Pneumatic Borewell Machine
ST 400 Pneumatic Borewell Machine Information
ST 400 drilling rig is mainly suitable for drilling water wells,agricultural irrigation wells, 400 meters drilling depth ,300mm hole diameter,our machines can be applied to various countries in the world, suitable for various scenarios, various geological scenarios including deserts, swamps, grasslands, mountains, orchards, etc.
ST 400 Pneumatic Borewell Machine Technical Data:
| Product Name | Shitan ST400 |
Max drilling depth | 400 Meters |
Drilling diameter | 105-325 mm |
Air pressure | 1.2-3.5mpa |
Rod length | 3 meter |
Rod diameter | 89-102-114mm |
Main shaft pressure | 5T |
Lifting force | 25T |
| Power head stroke | 6.6M |
Max rotary torque | 12000Nm |
Max rotary speed | 100r/ rmin |
Secondary winch liftng force | 3T |
Jacks stroke | 1.5m |
Moving speed | 2.5km/h |
Uphill angle | 21°Slope |
Weight of the rig | 8.8T |
| The engine | 92KW / 6 cylinder |
Overall dimensions | 3900*1600*2350mm |
Working condition | Loose layer and bedrock |
Drilling method | Hydraulic rotary, down-the-hole impactor |
ST 400 Pneumatic Borewell Machine Features
1. It improves drilling efficiency and reduces labor intensity With hydraulic automatic feeding mechanism.
Q1: How long can your air compressor be used?
A: Normally more than 10 years.
Q2: What are the terms of payment?
A: TT, Western Union transfer.
Q3, Can you provide us with the documents for customs clearance?
A: Of course. We will send you commercial invoice, sales contract, packing list, bill of lading (FOB or CFR, CIF terms), insurance policy (if CIF terms), and certificate of origin if you need it
Q4: How is your customer service?
A: 24-hour online service. The 48 hour problem was solved (except in special cases).
Q5: How about your after-sales service?
A: 1. Provide customers with online installation and commissioning instructions.
Well trained engineers can serve overseas. (non epidemic impact)
How to deal with sticking of water well drilling rig?
During the drilling operation of water well drilling rig, the common problem is sticking. The phenomenon that the pipe string and tools can not be lifted, lowered or rotated in the well is called sticking. In case of this phenomenon, the drilling rig can no longer work normally.
According to the current strength of the drill bit, the broken wing has been basically eliminated. In case of special circumstances, a section of seamless pipe with a diameter almost the same as the hole diameter can be used. The pipe is filled with butter, asphalt and other materials, which are connected with the drill pipe into the hole bottom. The broken wing at the hole bottom is taken out. The rock powder at the hole bottom is blown out before fishing.
In severe cases, the drilling tool can not be lifted or put down, and the impactor does not sound. At this time, only external torque or auxiliary tools can be used to help promote the drilling tool, so as to make the drilling tool rotate. Then, the drilling tool should be promoted while supplying gas until the fault is removed. When re drilling, pressure shall be applied first, and then the propulsive force shall be gradually increased until the normal working pressure.
