The use of china js concrete mixers must be strictly in accordance with the safety technical regulations. Before use the js concrete mixers, the power equipment, working equipment and supporting lifting and transportation pouring equipment must be carefully checked.

The concrete mixer must start at no load and feed during operation, otherwise the machine will be damaged due to excessive starting torque. When the concrete mixer is mixing the concrete, the feed amount must be calculated according to the specified ratio of ingredients and water-cement ratio. The humidity of the coarse and aggregates should be measured in advance, and the theoretical mix ratio should be converted into the construction mix ratio, and then according to the construction mix ratio and the discharge capacity of the concrete mixer, the mass of each component material that needs to be added each time can be calculated. The calculated value of the feed should be tested and strictly enforced once determined. The particle size of the largest aggregate should meet the specified requirements. The js forced concrete mixer has strict requirements on the maximum aggregate size, otherwise it will produce jam. If the added material changes or the humidity changes due to rain, snowfall, etc., it should be re-measured to recalculate and determine the amount of feed. Important concrete structures, cost ratios and water to cement ratios should be checked every 4 hours.