Plastic components in continuous operation
Straightening machines for sheet metal processing can be used to eliminate almost all stresses in the sheet metal arising during forming or punching, so that the quality of the products is appropriate for their further processing. Tribo-optimised plastic plain bearings help to solve the many technical challenges. Machine elements from igus have been used in the Kohler Maschinenbau product range for many years. "From plain bearings and linear technology to plastic rollers - we are finding more and more applications for the lubrication-free and corrosion-resistant components," reports Günter Keller.
"With our machines, the most important thing is maximum reliability," says the design engineer Lothar Hug. "When the system is on site at the customer's premises, it must run in continuous operation without problems. " Three and four shifts of operation seven days a week are the norm here. The environmental conditions that the plastic components withstand are quite different. "In a current project from the aviation industry we are straightening -80°C cold sheets. As a result, we get a lot of condensed water on the machine. Another example concerns special alloys that can only be straightened after cooling to 900°C," says the designer.