Plastic materials sensing Our capacitive switches detect plastic particulate level in hopper loaders, colour blenders, vacuum loaders and in-line drying used in moulding. Moulding machines need feeding Our capacitives are used plastics ancilliary equipment, in automated feeding, often on hopper loaders to detect level of powders, granules, regrind or particulates to either call for more material or to stop filling. They are fitted to vacuum loaders, one shot loaders, colour blenders, and all sorts of ancillary processing equipment. If you mould plastic parts or run many moulding machines, you probably automate the thankless task of machine feeding. You may be using loaders to draw material from a bin and need warning when the bin needs re-filling.
Capacitive sensors detect plastic materials through non metal containers, sight windows etc.
Here our sensor is fitted on the outside of a loading tube. Granules are loaded via the tube into the top of the moulding machine. This particular tube is clear such that material is visible to the naked eye. The tube does not however need to be clear for our capacitive switch to detect material through it. The sensor is fitted close to or touching the wall of the tube through which it will detect the target material.