The petrol engine boom sprayer is a high-capacity agricultural spraying machine designed for the efficient application of pesticides, herbicides, fungicides, and liquid fertilizers over large farming areas. It typically consists of a chemical tank, petrol engine, high-pressure pump, boom arms fitted with multiple spray nozzles, control valves, hoses, and a supporting frame mounted on wheels or a tractor. The machine is built from durable, corrosion-resistant materials to withstand harsh field conditions and provide uniform chemical distribution across crops.

In operation, the spray solution is prepared and filled into the tank, after which the petrol engine is started to drive the high-pressure pump. The pump delivers the liquid through hoses to the boom nozzles, which atomize the solution into fine droplets and distribute it evenly across the crop field. The operator controls the spraying pressure, flow rate, and boom position to achieve the desired coverage while minimizing chemical wastage. After spraying, the system is thoroughly flushed and cleaned to prevent nozzle blockage and ensure reliable performance during future operations.