The use of single hole shell, no need to choose the hole is appropriate, suitable for consumers of many ages. It is mainly composed of the control part of the power device of the external part transmission barrel extrusion device. The overall material is combined with plastic and a small amount of metal, and the plastic is environmentally friendly polypropylene (PP) Exterior part: divided into two parts of the shell, can be removed by the upper and lower shell and connecting plate between the screw to achieve the effect of separation. Transmission barrel: plastic is made of environmentally friendly polypropylene (PP) material, also known as the feed port. Nuts thus enter the process of shell-breaking and transmission through inclined rolling such as extrusion devices. Extrusion device: divided into two parts of the upper and lower extrusion plate, mainly composed of support plate, rolling bearing, pressure shaft, belt wheel. The lower part of the extrusion device is fixed. The upper part will have a tilt of 4-6 degrees under the operation of the control part according to the customer's choice to deal with different types of nut sizes. Power device: 100w-200w servo motor through the belt wheel and belt output.