When the amount of wear at the bucket beam hook to achieve the following circumstances, hoppers, bucket manufacturers, the proposed replacement: When the barrel wall uneven severe bending, severe corrosion, tank wall thinning, local weld cracking, bottom dump bucket, should repair reuse. Stored more than six months, hoppers, bucket manufacturer, carry out inspection, maintenance. It should be stored indoors. Bucket: bucket is mine shaft construction and special equipment for transporting concrete, it is suitable for coal, metal ores, non-metallic minerals and other occasions shaft construction requires pouring concrete. Especially when the soil deeply with frozen method, you can not use conveying pipe cutting, representing more appropriate.