Crown-drilling pumping sand:
Overview drilling style pumping sand: This type of drilling equipment for pumping sand, pumping sand partly mechanical systems. Applicable to reservoirs or rivers of mud layer pumping sand and so on. Sand pumping equipment easy operation, high efficiency, investment and quick, easy maintenance, low fuel consumption, low pollution. Sand pumping equipment to adapt to the environment: the river mud layer, (≤20%) content of less gravel, gravel diameter of not more than 30mm. Temperature: up to 40 ℃, the lowest -10 ℃ maximum wind speed is not more than four.