KOYO serial freight lift fully utilizes the advanced and fully computerized control technology. It employs the well-developed VVVF control system of KOYO elevator. It is simple in structure and convenient in repair and maintenance. It fulfils a qualitative leap in the aspects of the signal transmission and running control. It brings about the more stable and reliable system, the lower noise, the smoother running, the more accurate leveling. It is more and more easy for the goods entry and exit. In addition, KOYO serial freight lift can offer the micro-processor. The high speed running capabilities and expansion interface ensure to satisfy the special requirements from broad users.