Live roller conveyors power either some or all of the rollers to propel the load down the line. Roller conveyors shine where the load is solid and stable. Box widths should be 2" less than the roller width. You should always have at least three rollers under each carton in a roller system.
Sometimes moving a package to the right or left side of a conveyor to properly line up or track properly through the next conveyor requires skewing the rollers in the conveyor frame. Use this calculator to determine how far a package has to travel across skewed rollers to move it closer to the side in the required distance.