We have delivered new automatic line for assembling the heat exchanger cores of recuperation units. The input material are aluminum lamellas, which enter the machine on special handling pallets of our construction. The slats are then removed, inspected and joined by bending. For removal, we have developed a unique low-pressure high-flow suction system enabling the handling of thin large sheets. An interesting feature is the folding mechanism, which uses a cam mechanism and a servomotor instead of the classic pneumatic cylinders. The machine works 24/7 and consists of different core floor plans. The machine is readjusted to another dimension automatically using servomotors and pneumatic movements. The operator is only prompted to exchange input materials.