Correct Aggregate Batcher Gate Operation for Concrete Plants

This is one in a series of articles designed to familiarize you with your concrete batch plant. Aggregate batcher discharge gate(s) are operated by a pneumatic cylinder. The cylinder receives air from a double acting solenoid valve that operates from an electrical signal from the batch control. To operate a double acting (inching) solenoid valve, two signals are required; one open and one closed. Both signals need to be momentary. Flow controls are installed on the solenoid valve or cylinder that regulates the air flow to the cylinder. The flow controls are installed allowing the operator to regulate the speed at which the cylinders move to allow for precise control of the gates; critical for accurate and efficient concrete batching. During normal operation of the…