The product sample reduces the propagation speed of the


microwave field, and the water molecules in the sample perpetually align to the electromagnetic field, thus depriving it of energy. The moisture meter continuously measures these two effects, which are referred to as the dual parameter method. A moisture value is then calculated on the basis of the resonance


parameters. For every product, the moisture meter is calibrated with the aid of a laboratory method (e.g. LOD method or Karl Fischer Titration), so that the product’s moisture content can be displayed, stored or processed as a percentage value. The microwave resonance method can also be used to measure bulk density, sample mass or a sample’s weight per area.


TEWS Elektronik has been developing and manufacturing its patented microwave moisture and density measurement systems, which are used for process control and laboratory QA in the feed industry, for over 30 years. Based in Hamburg, Germany, the company is also active in the USA, with its local subsidiary TEWS of America, and has established service points in Hong Kong and Bangkok.


Above: Manual Control:


TEWS system installed:


Moisture content shows strong fluctuations


Inspection during process and control of moisture content up to target humidity.


NOT MANY COMPANIES COULD


DO THIS! While Game Engineering has manufactured its own diverter valves for some while, a bucket diverter is quite different. There will occasionally be a situation


where a customer’s process means that a conventional component is the weak link in an otherwise flawless system. So it was in this particular case where the customer needed to fill bins with a precise amount of granular product. The existing diverter was causing an element of over-filling. So engineers at Game Engineering designed a variation on the conventional diverter theme; a bucket diverter. The design of the bucket diverter, like all good ideas, is really simple. Externally, the bucket diverter looks very similar to a conventional diverter valve. However, internally it is completely different. Instead of a flap operated by either a solenoid or electric motor mounted just above the two legs, a bucket or open box has its pivot point directly below the product entrance to the valve. The moment that sufficient product has travelled through one leg, the bucket swings across to the other leg. There is no product leakage and the bucket valve can be set up to open and close as aggressively as the process demands.


Game Engineering bucket diverters


can be manufactured from either mild steel or stainless steel and, for particularly abrasive products, internal surfaces can be coated with an abrasion resistant coating. Maintaining a bucket diverter consists of removing the covers and lowering the bucket which is easy to clean or replace. For more information please contact


Adam Conroy on 01522 868201 or email: aconroy@game-engineering.com


VOLAC WILMAR LAUNCHES FAT


FEEDING PROGRAMME Volac Wilmar has launched the Fat Feeding Programme, a unique approach for the dairy sector to identify individual fatty acids and their different modes of action which will enable producers to offer more-finely-tuned diets to improve production efficiency and farm sustainability. “What we describe as ‘fat’ is actually


composed of individual fatty acids and it is the balance of these different fatty acids which results in a particular response when supplemented to dairy cows,” explains Volac Wilmar’s Dr. Richard Kirkland. “However, the majority of diet formulation systems pay little attention to detailed fatty acid nutrition. With new research data becoming available,


it is clear that the days of offering ‘fats’ simply as a source of energy and treating all fats the same are gone. The dairy sector has transitioned from crude protein to amino acids; it’s now time to stop feeding ‘fat’ and start thinking about individual ‘fatty acids’.” Jonas de Souza, of Michigan State


University’s Department of Animal Science: “New research data from MSU have not only demonstrated the clear effects of C16:0 fatty acids in dairy diets, increasing milk fat % and total milk fat production per day, but also leading to an improvement in fibre digestibility. Our data also indicate a unique effect of C18:1 fatty acid, increasing insulin production and consequently increasing the proportion of energy partitioned to body fat. These results enable us to better tailor our advice on which fats to feed at different stages of lactation.” Dr John Newbold explains. “From now


on diet formulation needs to be all about identifying each fatty acid and its impact on performance. The Fat Feeding Programme will ultimately guide producers to finely tune their diets leading to improved milk production, body condition and fertility and the ability to supplement diets to ensure they produce milk more-suited to the requirements of their individual contract.”


FEED COMPOUNDER SEPTEMBER/OCTOBER 2017 PAGE 53


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