Boost for affordable extrusion

Affordable extrusion has received a boost with the launch of a twin-screw extruder designed to perform in conditions prevailing in developing countries. The manufacturers claim the extruder is available at approximately one-eighth of the cost of similar equipment.
The IES continuous process extruder has a capacity of 250 kg per hour and cos Affordable extrusion has received a boost with the launch of a twin-screw extruder designed to perform in conditions prevailing in developing countries. The manufacturers claim the extruder is available at approximately one-eighth of the cost of similar equipment.
The IES continuous process extruder has a capacity of 250 kg per hour and costs around $75,000 and $80,000, depending on application. It is especially suited for producing quality products for human consumption like snacks, pre-cooked pasta or breakfast cereals as well as high quality pet food and animal feed.
The aim was to build an extruder that would be affordable to the small industrialist or the bigger farmer who wants to add value on-farm, says prof L J Grobler, an associate professor in engineering and director of Innovative Engineering Solutions (IES) of South Africa who designed the extruder together with his partner Danie Vorster.
Until now, only the biggest snack and breakfast cereal producers in Africa could afford to import a twin screw extruder, which can cost more than $700,000.
Single screw extruders for simple processing are much cheaper and readily available. However, a product of much higher quality is achieved by twin screw processing.Grobler experienced the prohibitive costs of extrusion some five years ago when he developed a snack from bean flour and maize meal, but could not afford the machine to produce it.
The response to the extruder at its launch was overwhelming, according to Grobler.
IES specialises in the design of single and twin screw extruders to customer specification.
The machines are compact and designed specifically to perform in African conditions. Maintenance is easy and spare parts are readily available. If required, IES will source equipment for pre- and post-extrusion processing, and will install this together with the extruder.
IES: mgiljg@puknet.puk.ac.za Tel +27 18 299 1328; Fax +27 18 299 1320
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