A flexible conveyor is characteristic with its construction which is flexible. Indeed, the monofilaments or multifilaments in warp and weft position which are crossing each other are not sealed. Thanks to this, the monofilaments or multifilaments can move between each other.
It gives flexibility to the conveyor which can absorb some imperfections on the working process such as guiding problems. The life of these conveyors is longer than for the rigid ones. These flexible conveyors are generally used on printing dryers which are running at high speed (over 60m/mn).
A rigid conveyor is characteristic with its construction which is rigid. These conveyors are woven with glassfibre or Kevlar® and are covered with PTFE which is giving the resistance to these conveyors. Thanks to this, all the crossing points on these conveyors are sealed and cannot move between each other. If there is any working defect on the machine, these conveyors cannot absorb it and often there is breakage. These conveyors are generally used on relax dryers and on printing dryers which are running at low speed (generally 25m/mn).
Kevlar® is DuPont de Nemours registered trademark
All the machines are not working with the same temperature, same speed or same fabrics. That’s why, we have several kinds of conveyors adapted to each kind of process. The composition of the conveyor is in relation with the temperature resistance of the conveyor. In our case, we have :
Beside the temperature many other parameters are important for a good belt recommendation: the speed, the width, the types of colorants, the types of fabrics. For instance concerning speed of your machine, for a rotary printing dryer where the speed is between 40 and 100m/mn we will not advise a rigid quality because it will break in a short time. We will recommend a flexible quality adapted to the temperature and the fabric.
The best is to give us the maximum information about your process to allow us to advise you the most appropriate quality for your process.
Nomex® is a DuPont de Nemours registered trademark
Dollfus & Muller is using in standard PEEK spirals joints because of several reasons: