Disc type feeding machine is apply to supply below 20 mm powder ore feeding equipment. Disc type feeder by a drive device, feeder ontology, measurement and metering device by belt conveyor. Feeder, and belt conveyor driven by a set of device drivers, the electromagnetic clutch drive has a feeder, stop and have a function of function transformation. Measurement of belt conveyor belt speed is less than 1 m/s, a speed detection device for measuring tape speed, in order to prevent weighing roller deflection with test lever to adjust.