"A request from one of our customers focused on optimizing worm segments that used to be made of Hardox. These were used in gravel washing and lasted only one and a half to two years. We went on a quest, for a more resistant material."
Our sales director for raw material screens, Claudio Lobina, further reported that the idea of using plastic had come from a sales employee. He was on-site with the customer in question and thought that a plastic lining had already produced many advantages for gravel loading chutes.
"We then went about it the same way as with chute lining: A Hardox segment was taken as a pattern and copied in plastic. In this case, a one-to-one copy was not entirely possible because the Hardox worm segment was slightly curved. This could not be achieved with plastic. In the end, however, there was no measurable disadvantage."