The Natural Frequency Feeders operate at their own natural frequency, which is the frequency, in cycles per minute, of free vibration of an elastic system. For example, once set in motion, a spring mounted weight will vibrate at its natural frequency until frictional losses gradually slow it to stop. When force is periodically applied in resonance with the natural frequency of the spring and weight systems, large amplitudes of vibration can be maintained with a very small exciting force. This will provide no heavy stresses to the springs, drive-shaft and bearings, which results in a longer conveyor life, lower maintenance and power costs. Whatever the application is, Construction and demolition Waste, wood, rubber, scrap metal, domestic refuse, our range of natural frequency feeders handle it. They are available as standard, balanced, isolated or balanced & isolated.