Avoiding System Shutdown – Reduce Costs for Wear Protection

The diversity of recyclable materials is a constant source of high wear and tear costs in recycling plants. An efficient utilization of the system is the objective.

Particularly sharp-edged materials, such as metal and iron parts, considerably shorten the service life, in particular of the separation belts. The surface is repeatedly affected. Those results in serious damage can lead to a system shutdown. Belt changes are expensive and labour-intensive.

The Plastics Technology division of the German-based Lutze Group, with 60 years of experience in conveying technology, has been developed into a system supplier in wear and tear issues. The combination of conveyor technology and wear and tear especially requires a high degree of expertise in order to offer innovative ideas as a special solution in a branch-specific manner. This is precisely where Lutze provides an approach to extend the belt system service life. The magnetic separation belt is sprayed with polyurethane, including the cross-sections, hence creating a homogeneous layer on the original conveyor belt. The stability of the cross-sections, which is heavily burdened by the constant material-drop, is thus increased as well. The challenge in this application is to create the connection between rubber and polyurethane.

Polyurethane features – via its flexibility – a much higher cutting resistance, as well as a higher resistance to chemicals and oils. Organic oils from food residues especially attack the rubber cover plate, making them swell and can even lead to decomposition.

Based on the damages, as well as the primarily conveyed materials, a consultation on site by the service personnel can determine the needed layer-thickness. The processing of magnetic separation belts in classical recycling plants, iron foundries as well as the belts in shredders and mobile crushing and screening plants, are vastly different.


Photo: Lutze Fördertechnik und Kunststofftechnik GmbH

GR 32017-Advertorial