Q:What's the difference between the main oil pump imported from the rotary drilling rig and the home made main pump?

The rotary drilling rig has two winches, one main hoist and one auxiliary winding, wherein the auxiliary winding is of some auxiliary function, such as hanging a protecting cylinder or something, and the main hoist is used for lifting the drill pipe.

Q:What is the minimum diameter of a bored pile?

According to the regulations of rotary drilling and grouting pile operation regulations, the minimum diameter of rotary bored pile is 670mm, the drill bit diameter is 600mm, and the actual drilling hole is 670mm.

Q:My rotary drilling rig has broken several rotary drilling pipes. Is it my drill pipe or the reason of my rig?

Hello, this is a lot of reasons, 1. may be man-made problems, 2. can also check the machine, 3. can check the drill pipe 4., to see if the geological suitability of your choice of drilling rod

Q:How should we deal with the abnormal encountered during the construction of rotary drilling and drilling?

When drilling occurs, the situation should be dealt with as soon as possible. No entry of personnel into the drilling hole without protective canister or other protection measures. Must enter the protective measures of drilling, should be confirmed that no harmful gas in the drilling hole, and equipped with anti-virus, anti drowning, buried, and other security measures to ensure access to, and set up a special person responsible for on-site command. For the special geological conditions encountered boulder and dissection in the drilling process, the rotary drilling encountered a sandwich, if we can continue to slow down the drilling speed and drilling requirements, prolong drilling time, increase the proportion of mud was used by. When drilling is stopped for some reasons, sufficient water level and relative density and viscosity of the slurry should be kept in the hole, and the drill bit must be taken out of the hole when dealing with the accident in the hole.

Q:Which is faster, the reverse circulation rig or the rotary drill?

The place is different. There is no comparability.The engineering process is different and the drilling rig model is different!

Q:Rotarydiggingmachine life

Electronic equipment for 3 years. Note: construction machinery generally adopts the fast depreciation method, if your car does not recover the cost within 1-2 years, then you lose, and the later maintenance fee is definitely not a small number

Q:If you have a project, will you make money from the auger rig?

That depends on the length of time and geological reports, ah, generally better early, and if not done, it is best to make a commission

Q:Tire type rotary drilling rig, drilling depth of 15 meters, diameter 1.2. This machine is how much money.

Should be OK, that is, the formation of the state must pay attention to, or else good equipment is futile.The estimated domestic product is around 2 million

Q:Current situation of rotary drilling rig in China

Rotary drilling rig industry, due to the 2003 Qinghai Tibet railway project and the Beijing Olympic project led by the market awareness increased rapidly, the market capacity expanded rapidly. The upsurge of market demand has attracted the entry of large construction machinery enterprises in China. 31, XCMG, ZOOMLION and sunward have been involved in it, and have rapidly expanded their market share. Since 2005, the domestic brand rotary drilling rig has basically replaced foreign brands. Since 2006, the sales of rotary drilling have been increasing by leaps and bounds in recent years. Especially in 2009, the domestic rotary drilling rig manufacturing enterprises as many as 30, the introduction of nearly 200 models of products, the market retains nearly 4000 units, the market competition is unprecedented fierce.

Q:What are the equipments used for bored pile construction?

Impact drills are mainly suitable for drilling in eggs (DRIFTS), stone soil and rock formations. The main equipment can be divided into two categories: one for the drill itself with the whole set of equipment, drilling frame, shock and lifting equipment; simple percussive drill another by double drum hoist with clutch components, the drill frame by simple rods. According to the circulation mode of the mud, the impact drill can be divided into impact positive circulation drilling and impact reverse circulation drilling.