Entry & Line Equipment

Following the strip through a tube mill: the uncoiler pays off the coil, the leveler flattens and guides it, the shear and butt welder joins the end of one coil to the start of the next, the spiral accumulator supplies stored strip through the coil change when usable storage and the joining cycle are matched, the forming and sizing mill rolls the strip into tube and welds and sizes it, and the flying saw cuts it to length. When wide coils are supplied, a slitting line cuts them to the required strip width beforehand.

The size of the entry equipment follows the same set of conditions: strip material, width and thickness, coil weight and diameters, and target line speed. Entry equipment is normally supplied as a set with the forming mill, but each machine is also supplied individually or as a replacement on an existing line, in which case we check the entry and exit directions, pass line height, available space and interfaces.

The equipment is listed below in four groups: entry section, mill section, cut-off section and strip preparation. Each page explains what the machine does, gives a specification table by model or type and lists the information needed for selection; spiral accumulators have their own page.

Do not select every auxiliary machine by the mill model alone. An uncoiler also depends on coil weight and bore; leveling and joining depend on material condition and joining requirements; accumulation must cover the actual entry interruption; and the saw must match the tube, cut length and line speed. Use one consistent set of material and finished-product requirements to avoid interface conflicts between separately selected machines.

For a replacement machine, first prepare an interface schedule covering material direction, pass-line height, adjacent equipment, electrical supply, controls and any cooling or compressed-air requirements. State which parts are retained and which are replaced. Confirm individual-machine capability and integrated line operation separately.