In 1990 STAM supplied to VOLVO (Sweden) the first in the world flexible and automatic Rollforming line for the production of truck chassis side beams.
That revolutionary rollforming line was a break point for truck chassis production because, prior to this, truck beams were made on presses, requiring the use of very expensive tools which were totally inflexible. The press method also has limitations when using high tensile steel.
Since then almost all the most important producers of long chassis beams for trucks started working with STAM rollforming lines.
These lines are equipped with several dynamic axes enabling changeover from one profile to another to be completed in a set up time of less than 4 minutes. The profile thickness can range from 4 to 16 mm, also with high tensile steel. The rollforming speed is up to 24 m/min.
As a result of the excellent performance of these lines, STAM has remained worldwide leader in this field and roll formed truck chassis side beams are gradually replacing beams produced by the traditional press method. The lines can be completed with additional sections realizing all the stages of the manufacturing process, where Stam can play a role of global supplier.