Q:Which is the best brand in the world?

Hyundai: Korean brand, but it is low-end goods, assembled. (HYUNDAI)Advantages: cheaper prices, good parts to buy, cheap.Disadvantages: machines can't even reach the standard of domestic machines, either good or bad.Personal view: imported brands can only buy more than these brands, Keith (CASE), JCB (JCB), Kato (KATO), Terex (TEREX), Bohai Seoul (LIEBHER), Sumitomo (SUMITOMO), Ishikawa Shima (IHI), Kubota (KUBATO), Takeuchi (TAKEUCHI) are not allowed to buy. Low share, customer service service points less, difficult to buy accessories, if you buy, there will always be these problems.Komatsu and Carter belong to the independent production brand, the primary consideration

Q:The best domestic rotary drilling rig, steel wire rope manufacturer

Therefore, it is necessary to have good flexibility, good abrasion resistance, good rotation resistance and good resistance to extrusion. Especially for the front of multi layer winding

Q:How much is a drill bit?

I don't know. You can buy a rotary drilling rig, or dig it.

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

To contrast, there is also a standard can be compared to, for example, how much aperture, deep

Q:Does the rotary drilling rig need mud?

Rotary drilling rig needs mud wall protection. Except in the middle weathered rock formations

Q:What is a rotary drill for?

Multi - purpose excavator (drilling, drilling, impact drilling) is the world's first. The pore forming speed and the quality of the hole forming can be compared with the existing hole forming equipment, but the purchase price is low and the use cost is low, and the products can not be compared with other products.

Q:Why should auger drilling be done by means of jump excavation?

According to the construction of regional geological conditions and construction requirements, the general pile drilling pile construction in the jump, has been filling into a pile of adjacent pile drilling bit, is to wait until the strength of concrete bored pile has reached more than 2.5MPa before drilling, to avoid the disturbance of bored pile adjacent construction.

Q:What material steel pipe do the drill pipe use?

Commonly used materials for geological drill pipe are DZ40, DZ50, DZ60, R780 and other geological drilling seamless steel pipe. Seamless steel pipe for drilling pipe, which is used for petroleum drilling pipe in petroleum industry. General parameters of seamless steel pipe for drilling rod.

Q:200 price of rotary drilling rig

According to the brand and the place of origin is not the same. The price is different. Pure imports are more expensive than imported drugs.Imports are more expensive to assemble than domestic ones.

Q:What are the advantages and disadvantages of the construction of the bored pile with auger and rotary drilling? Another auger can drill 1800 diameter piles?

Suitable for a variety of spiral drilling geological layer, and the hole diameter can reach 3.5 meters (I did at the start of 90s); rotary drilling rig only for certain efficiency with gravel clay layer or work, but for the rock layer, sand layer is not; and rotary drilling rig can not drill deep hole (more than 30 meters deep is more difficult).