Selection of the material handling method varies directly with the production volume, part size/ shape/ weight and desired cleanliness. In general, the monorail is the most economical, flexible and reliable method of handling product. If you handle product in batches/ baskets, a belt internal to the machine can provide an excellent and consistent means of transporting product through the washer. If your product can tolerate bumping, such as nuts or bolts, a drum is a coat effective means of conveying high volumes with excellent results. Conveyor speed determines the size of the system. This is determined by multiplying the annual production and the part spacing (in feet), divided by the number of minutes available per year. This yield a feet per minute line of speed.