We have more than 10 years experience in energy saving industries manufacturing in Shenzhen China, like variable frequency drive, ac drive and related automation products, we have specialized variable frequency drive for the injection molding machine that suitable for most kinds of injection molding machines. It can modulate the flow of oil pump to meet different flow and pressure need in different working period. Meanwhile, it can implement soft start of the motor to improve the power factor and reduce the oil temperature. With the excellent energy saving efficiency. And the frequency inverter in crane solution, adopts integrated mode of motor drive and crane logiccontrol,remove the PLC in original system, decrease possible fault point, simplify system’s wiring, easy and flexible debugging, represent the future developing trend of crane controlling; integrated years of experience in crane industry, design senior advanced & general used crane facility’s control and safety logic, include timing cooperating, slip hook, etc.