Various types of rotary drilling rig rotary drilling rig purchase conditions Performance range is very large, for the construction of such pile diameter is very suitable. The principle of rotary drilling rig should be able to meet the needs of the user's current main project, taking into account engineering requirements that may occur in the future. In addition, the performance parameters of rotary drilling rig to leave room for development. Rotary drilling rig in accordance with its main operating parameters: can be divided into torque, engine power, hole diameter, depth and drilling rig machine quality for the purchase of three types: (1) Small rotary drilling rig. Small rotary drilling rig applications: various gallery of piling, pile floor section bearing structure, a variety of urban renewal projects of less than 1m municipal pile for pile for other purposes. Small rotary drilling rig Technical parameters: torque 100kN2m, engine power 170kW, hole diameter 0.5-1m, drilling depth of about 40m, 40t quality about the whole rig. (2) mid-sized rotary drilling rig. Medium rotary drilling rig applications: bridge piles of various highways, railways and other transport facilities bridges, large buildings, ports pile load-bearing structure, urban viaduct bridge piles, other applicable piles. Medium rotary drilling rig Technical parameters: torque 180kN2m, engine power 200kW, hole diameter 0.8-1.8m, drilling depth of about 60m, 65t quality about the whole rig. (3) large rotary drilling rig. Large rotary drilling rig applications: all kinds of highway, railway bridges Bridge pile, the special structure of other large buildings bearing foundation piles. Processing a rotary drilling rig because the mast to adjust the cylinder seals of a serious oil spill drill rig, often affect rig construction, after a group of seals replaced after the commissioning of the mast no problem. In the afternoon to the site ready for drilling operator when it carried out the first look at the mast debugging, but suddenly not the right tone decentralized, operator thought it was the beginning of the mast upper limit position solenoid valve stuck, and checked no, after and check valve associated with the mobilization of the solenoid valve, did not find the problem, and that in the end is what a problem? After much thought to check, water well drilling rig model, the final decision on the two upper and lower hydraulic cylinder locks washable adjustment once installed and then see how the mast debugging. Re-erected mast flat, well drilling rig prices, about tilt back and forth repeatedly to do everything to normal after several debugging, well drilling, so that the machine operator will start to pile position to begin construction. The reason is, there should be two things: one, is itself one of the hydraulic lock in the absence of replacement seal on a problem, there is no adjustment to the right tone when the mast left flexible, so the two hydraulic pressure locks the adjustment, the two pressure remains the same; second, the incumbent oil seals, water well drilling rig parts, that somehow dismantling the cylinder tubing. The demolition of a mounted pipe to form a vapor lock, sometimes affect the hydraulic pressure vapor lock can not be opened by the upper hydraulic cylinder lock, can not form a hydraulic circuit, certainly not lowered. So by this draw so little experience, speak out and we were discussed. Which well drilling rig | Long industry machinery (Online) | well drilling rig by Dragon Machinery Co., Ltd. Shandong. Machinery Co., Ltd. Shandong Long (www.longyejixie.com) is Tai'an, engineering machinery parts leaders, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Lung industry machinery leadership with the staff warmly welcome all inquiries negotiations to create the dragon industry machinery better future.