◆ Large capacity , microprocessor control , high torque and frequency conversion motor . ◆ The imported compressor(R404a)operating without Freon for the purpose of environment protection . ◆ The function of electronic lock door , over-speed , over-temperature and no balance , the time of the acceleration and deceleration can be set freely . ◆ Widely used in the field of pharmacy , biologic product and central blood station .