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Digital Re-print - March | April 2010 Feature title: German technology convinces in the Australasian hemisphere

www.gfmt.co.uk

Last autumn the German packing machine special-ist Behn + Bates succeeded

in winning two interesting projects in Australia and Thailand.

Both projects deal with the packing of powdery products into open-mouth bags. The Australian customer requests to fill baking ingredients into 10kg to 25kg bags at an hourly rate of 180 to 240 bags. The Thai company produces tapioca starch that has to be filled into 50kg bags at an hourly rate of 220 bags.

For both projects the Westphalian machine building company based in Münster will deliver its Topline packing system in spring 2010.

Hermetically tight bags for optimum product protection and competitive bag cost, robust and steady machine technology that is easy to clean, can be put into opera-

tion fast and corresponds to modern food standards – these all were demands specified by the customers for the realisation of their projects.

Optimum product protectionFirst project studies revealed quickly that

only open-mouth bags are really hermeti-cally tight thus offering optimum product protection.

In comparison even a multi-layer paper valve bag with internal PE layer is never 100 percent tight as it must be aerated and de-aerated in the process of filling for optimum

packing results. With regards to cost the open-mouth bag also prevails. It is more cost effective than the valve bag.

Thus, the rough direction was clear for both projects.

Considering the requested hourly outputs of up to 240 bags with bag weights of 25kg or 50kg, Behn + Bates offered its Topline system with gross weigher.

The Topline is a modern machine design launched by Behn + Bates in 2005 and mar-keted successfully since then.

The aim of the machine development has

been that customers producing food and pet food can be offered an efficient technology for the clean powder filling into open-mouth bags according to modern GMP and HACCP hygiene standards.

Powders, however, confront packing machine manufacturers with special chal-lenges: They are partially extremely dusty not mentioning the resulting dust explosion risk. Only a filling technology that is designed to meet these challenges can guarantee optimum filling results.

The relation between low-air filling, dust-tight filling spout and efficient product de-aeration or densification is of utmost importance.

The Topline systemThe Topline system has been continu-

ously refined over the years. Thanks to sophisticated innovations the machine design was optimised in such a way that:· The time needed for the individual

work steps, for example the empty bag application was reduced

· The number of pneumatic and mechan-ical components was minimised

· The energy supply cables were com-pletely laid on the machine roof

Bag processing in the machine starts with the empty bag feed designed according to the needs of the customer and the special-ties of the handled bag. The design of the empty bag separating station also considers the bag type as well as the requested output.

The bag applicator arm driven by a servomotor securely positions the singled bag underneath the filling spout. The dust tight hexagonal filling spout fills both the

German technology convinces in the Australasian hemisphereBehn + Bates supplies baking ingredients and starch producers in Australia and Thailand

“First project studies revealed quickly that only open-mouth bags are really hermetically tight thus offering optimum product protection”

Grain&feed millinG technoloGy32 | march - april 2010

FeatureBagging

Australian baking ingredients and the Thai starch product. It encloses the bag entirely during the whole filling process.

At the same time venting channels inte-grated in the filling spout assure the clean product filling without dust occurrence. The product is compacted during the filling proc-ess by a bag bottom vibrator supplied in dust-tight design especially for the food industry.

The filled bag is taken off the filling spout by a pair of grippers, optimally spread and transferred to the discharge unit at the same height. Then, the filled bag is closed accord-ing to the closing method requested by the customer.

In spite of many parallels both projects are different in essential design features as different products with different specialities and different bags with different closures are handled: - Baking ingredients project in

AustraliaA coarse and fine-flow auger is pro-

vided for the dosing of the various baking ingredients containing different binding por-

tions of fat, cocoa powder and unskimmed milk. The servomotors of the augers are adjusted to the different flow characteristics. These parameters are stored and recalled upon use according to recipe.

The customer processes multi-layer paper bags made of paper with PE inliner.

The bag is sepa-rated by a vacuum system and trans-ferred to the bag-aligning unit in a lin-ear motion. There, it is centred, opened and optimally shaped for the following application.

The internal PE bag is sealed hermetically tight after the filling described beforehand and the de-aeration. Then, the upper bag edge is folded and closed tight by hot-melt reactiva-tion. This technology is trend-setting in the food industry as humidity, foreign bodies and

vermin or similar cannot penetrate the packed product. Due to this optimum product pro-tection even storage times can be extended.

- Tapioca starch project in ThailandThe tapioca starch is dosed – without

adding any additional air – by the proven impeller system combined with the scis-sors type seal for coarse and fine flow feed. Bags made of woven propylene or polyethylene, as used in this project, are

“Powders confront packing machine manufacturers with special challenges - they are partially extremely dusty not mentioning the resulting dust explosion risk!”

Grain&feed millinG technoloGy march - april 2010 | 33

Feature Bagging

Fundamentals and new developments in

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products into open-mouth bags at hourly rates of more than 250 bags.

The Orbis packing system made by Behn + Bates is the further development of the Topline and fills powdery products into open-mouth gusseted bags or flat bags made of paper, PE or material combinations at hourly outputs of up to 600 bags.

It can be equipped with three, four or five filling spouts.

Thus, it is possible to carry out the individual filling steps of empty bag applica-tion, coarse and fine flow dosing as well as product compaction and/or bag discharge simultaneously. Shorter cycle times and high-er machine capacities are the result. Behn + Bates is well prepared for future market challenges.

machine frame. Thus, the bags are not sewn outside the machine as it is usually done in many companies.

In both projects optimally shaped bags that can be easily pal-letised and perfect pallet patterns are the result what is of utmost impor-tance to the prod-uct marketing.

The severe hygienic standards applied in the food industry are the basic rule for the construction of all Topline systems: They are suspend-ed from the top.

The machine bottom is eas-ily accessible for cleaning purposes.

In addition, the cleaning process is made easier by the completely closed design of

the machine bottom and the cabling laid outside the dust area. The access doors equipped with safety glass are flush with the machine frame. Possible dust deposit areas

are reduced to a minimum. The entire packing area remains clean.

Cleaning and maintenance works are minimised.

In order to avoid even the small-est risk of residual product deposits the Australian cus-tomer will clean the

product ways with water in regular intervals.

Excursus:- High-capacity filling of powders

with the ORBIS systemIn the international food industry an

increasing number of companies are inquir-ing the hygienic filling especially of powdery

separated from the bag bundle at their bottom.

A rotating transport grid system driven by a tooth belt takes over the empty bag

being centred on its way to the bag opening station.

Thus, it is for sure that bags do not load eletrostatically nor get stuck.

Behn + Bates will deliver to the Thai cus-tomer a sewing machine for sewing the filled woven PP bags. Especially for hygienic rea-sons the sewing machine is integrated in the

More inforMation:Behn + Bates Maschinenfabrik GmbH & Co KGGabriele BußRobert-Bosch-Str. 648153 MünsterGermany

Tel: +49 251 9796243Fax: +49 251 9796260Email: g.buss@behnbates.com

“Behn + Bates is well prepared for future market challenges”

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Grain&feed millinG technoloGy34 | march - april 2010

FeatureBagging

The solution behind the solution.

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LINKS• Seethefullissue• VisittheGFMTwebsite

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April 2010

• Regulatinggranularity

In this issue:

• Designing bagging lines to meet requirements - Specifying and

designing bagging lines for the food processing

industry

• German technology convinces in

the Australasian hemisphere

• Global Grain & Feed market report

• Residue-freeconveyanceofgrain

• RollerMillGrinders

Advantages, limitations and how roller mill grinders are changing for the better

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