S+S: New metal separator for injection moulding machines and extruders

For over 25 years S+S Metallsuchgeräte and Recyclingtechnik GmbH (www.ss-gmbh.de) has been one of the world’s leading manufacturers of metal detection machinery for the Plastics Industry. One of the company’s most successful models is the patented MES metal detection system. Now S+S is introducing the “Protector” (picture), a new model based on the MES.

Helmuth Frisch, Managing Director of S+S is delighted about the metamorphosis of the MES into the Protector, “Even the smallest metal particles in molten plastic can cause expensive and time-consuming damage to extruders, injection and blow moulding machinery. As the use of plastic regranulates increases so does the probability of metal contamination, causing blockages in nozzles, filters and hot channels. However, machine breakdowns, loss of production and failure to deliver are not the only result; the cost of repairing an extruder spiral or cylinder damaged by just one single larger piece of metal is many times more expensive than the cost of a Protector system. The Protector combines the proven benefits of the MES with new performance features developed in close co-operation with our customers. It will be available from November 2004 for 30, 40, 50 and 70 mm diameter tubes.”

Advert

The Protector system is designed to be installed directly above the material infeed of an extruder, blow moulding or injection moulding machine. It acts as a “Last Chance Controller“, reliably and efficiently protecting the machinery from damage by metal particles which may be present in the granulate. As well as retaining the most successful features of the MES, such as high sensitivity across all metals and the benefits of a compact, space-saving design, the Protector is suited to practically all conveying systems feeding extruders, blow moulding and injection moulding machines. Customers will be able to purchase the Protector in widths as narrow as 30 mm and since there is no mechanical diversion of the product, blockages, which can be a particular problem with regranulate, are completely eliminated.

An additional improvement is that the Protector will remove metal contaminants as large as 25 mm. The pneumatically-driven reject system works so quickly that metal particles are consistently removed from free-falling granulate not only at the initial fill but also at subsequent top-ups. Similar to the MES, the Protector will separate metal contaminants into a reject material container by means of a Venturi nozzle system. This takes into account the limited space in the immediate vicinity of an injection moulding machine.

K'2004, Düsseldorf, 20.-27.10.2004, Hall 10 Stand E60

S+S Metallsuchgeräte und Recyclingtechnik GmbH, Schönberg/Germany

back to news list