Autoloader is used for feeding the material. The advantages include: Avoiding plastic material to touch air with humidity; Making the feeding work more safety; Saving manpower; Avoiding material waste; Making workshop clean. Main controller and material hopper are designed separately, so it is safe and convenient; Stainless steel receiver; Microprocessor controller; Motor protective device; Alarm for shortage of material. The filter is independent, so it is convenient for cleaning dust. The feeding operation is controlled by an electric level sensor. Window for inspection of filter;