A push-pull line can handle a wider range of products than continuous lines: both heavy and light gauge ... high carbon and mild steel ... and high strength, low alloy (HSLA) steel.
For these reasons, as well as their lower cost, they are favored by toll picklers. Push-pull lines also have applications in major steel plants, where they can be used to complement continuous, high production units or to replace older, less productive lines.
A recent Danieli Wean United push-pull line accommodates 80,000 pound (36,287 kg) coils from 0.0600" to 0.500" (1.5 mm to 12.7 mm) thick in widths up to 74" (18800 mm). It uses our TurbofloTM pickling process, which removes the oxide layer very effectively, for unmatched cleanliness on strip surfaces and edges.
A two-high temper mill improves strip shape and further enhances the breakup of oxide scale for faster pickling. Several units provided can be moved in and out of the line: a dry lube system that applies protective coatings and pressworking lubricants, a slitter capable of making up to seven cuts depending on gauge and yield strength, and an adjustable-width side trimmer for fast width changes. A turret type recoiler eliminates time-consuming in-line banding. The line is an all-in-one workhorse that is engineered to deliver higher product yields.