The present invention is a die positioning system for use in positioning mobile or fixed dies. The system includes a pair of key bars, a pair of key disc inserts, a set of key discs, and a set of disc backers. The key bars and key discs serve to offset manufacturing dies or die holders. Using key bars and/or key discs from different pairs of key bars and/or sets of key discs also allows for precise angulation of the dies or die holders. The key discs are held in place between the die and die holder, or between the die holder and key base, by the key disc inserts and angled (if feasible) by the disc backers. The key bars, located between the key disc inserts and the die or die holder allow additional offset of the die or die holder. The solid, stacked configuration of the key bars and key discs prevents the die or die holder from gradually or suddenly losing its positioning.

A mobile factory of steel sheet coil helical pipe includes a factory for the production of helical pipes that can be mounted on trailers, rafts, or container-type structures that is distinguished by its high production speed and use of steel sheet coils of up to 1 possible thanks to the use of an optional coil driver, a beveler and a wire welding system that may contain two, three, four, or five welding wires per pass (internal and external).