Uncoilers can be tension-braked or driven by a DC or AC regenerative motor, depending on the material processed. A two-arm turnstile is sufficient for small- to medium-duty lines. The exit turnstile can have one, two, three, or four arms, depending on the number of slitter cuts. Another method is to remove the coil with a coil unloading car traversing to an exit turnstile. With this method, coil damage can result. The most economical is physically pushing a coil off the recoiler and onto an exit arm. On the exit end, two methods of coil removal are common. The coil saddle and uncoiler are connected mechanically, which reduces overturning, rail, and foundation work associated with a four-arm turnstile, coil car, and stationary uncoiler. It traverses to the coil storage location, picks up the coil, and moves back into position at the slitting line. The uncoiler is a floor-mounted, traversing style that also acts as a loading car. ![]() Small to medium-size slitting lines use a stationary, floor-mounted coil saddle or a floor-mounted, four-station rotary storage system. Large slitting lines typically use a four-arm turnstile, coil loading car, and an uncoiler. Depending on coil size, loading can be performed by a forklift or an overhead crane. Sell edge trim material as scrap to offset costsĪ basic slitting line includes coil handling, material processing, and scrap management equipment.Ĭoil Loading Equipment.Purchase raw material for less through a broker or directly from the mill.Control coil inspections to prevent processing flawed materials.Some advantages of in-house slitting are: Compared to high-capacity lines found in toll processing facilities, these lines generally have more manual functions, yet employ the latest controls technology. With this type of prepiped, prewired slitting line, minimal foundation work is required. New small- to medium-capacity slitting lines range from 24 to 60 inches wide and can cost $300,000 to $600,000. In some cases, the final investment can result in 70 percent to 80 percent of the cost of a new line. ![]() Used slitting lines are readily available but may require rebuilding and upgrades. ![]() Stampers considering in-house slitting first must decide whether to invest in used or new equipment.
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