How to judge the stand or fall of a stone carving machine

Pay big money to buy a machine broke down but always failure, this is really a headache thing, stone di engraving machine brands, high technology content, general small producers have no power to produce good equipment, when consumer is buying to get smart, careful choice! Next, to teach you how to judge the stand or fall of a stone carving machine! 1, understanding the performance and functionality, engraving machine engraving machine engraving head motor is also very crucial, because the sculpture head motor generally does not belong to the warranty scope, and carving head motor work continuously for a long time, so if engraving head motor is bad will also affect the use of engraving machine. 2, moreover is engraving head motor speed adjustable range, speed adjustable range is generally several thousand to thirty thousand RPM, if speed is adjusted or speed adjustable range is smaller, so that the engraving machine application range is limited by a lot of, because of different material must use different engraving head speed. 3, engraving machine manufacturing technology of ontology: high-power engraving machine work requirement ontology must be precise and stable, so the long-term power carving casting ontology should be adopted to guarantee the machining precision and stability. 4, the material of main shaft, some manufacturers in order to reduce the production cost of engraving machine, will use aluminum instead of copper, with a rubber cover for iron, etc. Second-hand spindle is also a kind of counterfeit products on the market more, profiteers again through the appearance of the polishing process, the old electric spindle will become the 'new', so some companies will greatly reduce the capital. But the secondary processing precision of motorized spindle function foundation is not make sure, in the future may be present in the use of a lot of trouble.