... copper, aluminum, iron, metal stamps, badges, signs, small pieces of steel, PVC, acrylic, double color plate. ... small noise.Adopt high precision ball screw.High accuracy linear rail with automatic lubrication system, maintain conveniently.The whole machine ... feeding height<280mmSpindle Power1.5KWSpindle speed0-24000rpmMax engraving speed 4000mm/minTransmission formHigh precision ball screwCountertop ...