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Russell Finex helps Nestlé safeguard product quality

26,000 t/a milk powder processing plant in Chile
Russell Finex helps Nestlé safeguard product quality

Russell Finex helps Nestlé safeguard product quality
Russell Compact Sieve are used in three different milk product ranges
With factories or operations in almost every country, Nestlé is the world’s leading nutrition, health and wellness company. Since Nestlé first began selling in Chile in 1934, the country now provides one of the highest per capita consumption and sales of their products. Nestlé’s continued commitment to developing operations in the country, and a change in society for a healthier lifestyle leading to increased demand of milk powder products, have resulted in the investment of a new factory. Russell Finex provided purpose built screening solutions for the new plant.

The new factory, based in Osorno, is one of the most technologically advanced dairy factories of its kind. The factory produces a range of milk products with added nutritional value targeted not only at the domestic market but also at overseas markets, including the United States, Central America, the Middle East and Asia. Having strict Good Manufacturing Practices (GMP) and Hazard Analysis and Critical Control Points (HACCP) in place, Nestlé sought only the highest quality equipment for the new factory.

Having previously worked with Russell Finex at many of their factories worldwide, there was no hesitation in Russell Finex being the supplier of choice for their screening operations in the new factory. “The ongoing relationship is due not only to the high quality manufacture of all of Russell Finex’s separation equipment but also the accompanying documentation and certification that is provided”, states Jaime Sanchez, Maintenance Manager.
Traditionally rotary sifters have been used for the screening of powders. However this method of screening presents many problems. With the impeller forcing the powder through the mesh, product quality can be compromised as very little oversize is collected. In addition, most rotary sifters are supplied with nylon mesh which is prone to breakage. Therefore there has been a move to use gravity fed circular vibratory sieves as an alternative.
Finer mesh size
Following a consultation with a Russell Finex Sales Representative, it was decided that the Russell Compact Sieve would best meet Nestlé’s requirements. With three different milk product ranges being processed, each requiring different flow rates, different sized Compact Sieves, comprising of 600, 900 and 1200 mm diameter units, were supplied to each process line.
Recent changes in industry practices have resulted in the need to screen milk powders finer. Traditionally 4 mm aperture mesh (5 mesh) has been used but 2 mm (10 mesh) is becoming more common practice. Unlike conventional vibrating screeners, the high performance sieve is able to screen the milk powder at this finer mesh size without compromising flow rates, preventing the sieve from becoming a bottleneck in the process. “We required a sieving system that would enable us to check-screen the milk powder to meet the standard set not only by Nestlé but also by Chile and the countries the milk powder is being exported to”, comments Sanchez. “With the industry moving towards 2 mm screening, it was important to choose a sieve that would meet this criteria without slowing down the production process” continues Sanchez. The Compact Sieves have enabled the new factory to meet its target throughput rate of 26,000 t/a.
Easy to clean
Constructed in the highest quality stainless steel, the Compact Sieve is easy to clean between batches, and its simple design allows operators to strip down and clean the machines without tools. With enclosed screening for total containment, dust and fumes are also eliminated, not only helping Nestle to meet their strict zero dust environment policy, but also to improve operators’ health and safety. The machines were also fitted with BFM connectors, an innovation designed to provide a hygienic connector system, allowing for easy removal for cleaning or replacement. Sanchez concludes, “The Russell Compact Sieves have not only helped us to meet our required capacity, but have also provided a hygienic solution that is mandatory for the milk powder industry”.
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