The Zoned Accumulation Conveyor with roll-to-roll chain driven live rollers is designed to handle medium to heavy-duty loads. The zone lengths can be designed to coincide with the product lengths. The entire length is then driven by a single power unit. Each accumulation zone is driven by air-operated clutches that are controlled by photo-eyes and solenoids located in each zone. All electric sensing eliminates the wear and tear of a sensor roller. The product is designed with each clutch assembly mounted on the side frame of the conveyor, making it ideal for heavy loads and pallet conveying. Roller diameters of 1.9, 2.5 and 3.5 in. are available with widths up to 60 in. Weight loads up to 6,000 lbs. are typical.