What is a suction excavator?

What is a suction excavator?A suction excavator is a combination of excavator and a pump for dual function of excavating earth and pumping the soil out. It has an air pump for generating the required flow of air, a nozzle through which air is drawn and a mechanism for separating soil from the air drawn through the nozzle. The excavator is provided with a fuel gas detector to detect the presence of fuel gas in the flow of air drawn up through the nozzle to avoid the risk of an explosion.

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