In addition we use special 3/4" ring shank nails (not staples or coated nails) to hold the screen material in place. Clipper screens have all the wood cross support members wrapped on ALL four sides with metal to support the screens (except on the farm models). Screens - Screens are one of the most important factors when buying a new machine. Some competitive machines use two shafts and a timing belt which can skip clogs and will be a continual maintanance item. Shoe Drive - Shoes are driven by one shaft to ensure that the shoes stay in time with each other. We also make the hangers shorter than most competitors to keep cleaning shoes moving front to back, not sideways. Replacement parts for these hangers and drive arms are few and far between.
Shoe Hangers and Pitman Connecting Arms - Clipper uses a 1/4" thick scotch-ply hanger arm and pitman. The difference in the movement of the seed is quite obvious when comparing a Clipper and a competitor's machine. All other major brand of seed cleaners use a longer throw which does not shake the seed down the screen, but conveys the seed in a long uneven motion.
The shorter throw allows each seed to see more opennings and move down the screen at an even rate. Throw of the Shoe - Clipper is the only major manufacturer of seed cleaners to use the 1/2" throw eccentric assembly.
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