Qingdao Infinity Precision-Machine Co.,ltd founded in 2004, is one manufacturer specialized in R &D,producing,selling,service of gearbox and drive alex as well as components.Since its foundation,Infinity always stick to the quality guideline" Seek advanced conception,Creat topmost quality,Insist on innovation,Meet society's needs",continually get rid of the stale and bring forth the fresh,develop and produce the series of top-class parts that customers urgently need.Infinity wins the favor of customers from home and abroad relying on the advantage of characters and price as well as convenient services.Infinity exploits the gearbox with greater torque and larger transimission making use of planetary carrier theory.Our gearbox reached an advanced level in the world,it can replace same equipments of Germany Rexroth, Italy Bonfiglioli, Brevini.The gearbox is classified into Travel series,Rotation series,Winch series,Drives series four types and 38 kinds total. It is widely used in kinds of fields such as excavator,loaders,crawler crane,mining machine,transportation machine,road machine,port machines and wind power generation machine. At the same time,Infinity researches and develops produces the engineering machinery alex.Infinity has international high quality NC machining and inspection machines: larger NC lathe,horizontal milling machine,larger milling machine,NC gear hobbing machine,gear shaping machine,broaching machine,glow ion nitrogen furance;CMM,gear inspection center,spectrum analyzer,contour and surfcom. etc.we can supply precise machining and assembly service.We are qualified supplier of gearboxes companies like XCMG, O&K, Carraro, ZF, Brevini, KPM, KYB,etcBy now, Infinity has developed more than 200 kinds of products and they have been exported to more than 20 countries and regions, including Europe, America, Middle East, Southeast Asia, etc.