KHS and Ferrum adopt pioneering role in hygienic machine design

Close partnership strengthened by mutual developments

KHS and Ferrum
Innofill Can C.

An increasing number of beverages are being filled into cans worldwide, with the diversity of products seeing a similar increase. It is for precisely this reason that canners make particularly high demands of flexibility and the hygienic design of their machinery. KHS and Ferrum take on a pioneering role in this field. Their technical systems, perfectly attuned to one another thanks to many years of partnership, enable beverage producers to market high-quality products that are hygienically flawless. The compact Innofill Can C from KHS, for example, is convincing with its flexible, taste-neutral filling, among other features. This is supplemented by matching seamer systems FC06 and FC08 from Ferrum which with their open design are especially easy to clean. Combined, both machines make for a very efficient filling process.

The world demand for trend beverages such as hard seltzer, energy drinks and craft beer continues unabated. Here, the can is often the container of choice, says Manfred Härtel, filling technology product manager at KHS. “It’s light, easy to recycle and keeps products fresh for longer with its excellent barrier properties.” This type of container is increasingly being favored for established beverages such as soda pop, water and mixed beer beverages. According to Härtel, this is prompting a good number of beverage filling operations to increase their range in the can segment and fill more and more different products on the same line. “This means higher demands are made of the machine’s flexibility and hygiene,” the KHS filling expert explains. “For the greater the product variety on a line, the greater the risk of contamination and flavor carryover.”

KHS and Ferrum – hygienic machine design crucial

“Our mutual customers have exacting standards when it comes to the quality of their products,” states Marc Zubler, head of Sales and Product Management at Ferrum. An optimum hygienic machine design that reflects the current demands and requirements of the market is just as important as the consultancy service that goes with it. Härtel claims both companies share a deep understanding in this area; many years of partnership have created systems that are perfectly attuned to one another. “We offer a complete package of first-class technology and advice. Our jointly developed filler/seamer block gives our customers plenty of added value,” Zubler declares. 

Flexible, hygienic and robust – the Innofill Can C

KHS provides two fillers for the can segment that have long proven themselves on the market – the Innofill Can DVD for the high-performance range and the Innofill Can C designed for small to medium filling quantities. Thanks to a new addition to the series that boosts capacity to up to 60,000 cans per hour, the Innofill Can DVD’s little brother can now be integrated into lines with higher outputs even more effectively. It is also extremely flexible, enabling several different products and formats to be processed on a single line. “The Innofill Can C is distinguished by its fast format changeovers and setup times. This, in turn, increases the availability and economy of the system,” is how Härtel describes the benefits of this particular filler. 

Protection against flavor carryover

In view of the increasing number of beverage variants being processed, during development special attention was paid to the hygienic machine design and providing protection against flavor carryover. In the product area, the filling valves on the KHS can fillers are thus equipped with PTFE expansion joints (Teflon) in place of conventional seals. The sliding seals in the bell guides have also been replaced by Teflon expansion joints to create gapless, hygienic seals. These effectively protect the product from contamination and are easier to clean. Moreover, the electro-pneumatic lifting and positioning of the bells when sealing cans further contributes to a safe filling process. “Also doing away with water lubrication in the filler carousel area shortens exterior cleaning intervals by up to 20%,” Härtel says. 

As an option, the Innofill Can C can also be fitted with a HEPA filter that removes potential bacteria from the air in the machine interior. Another option available on request is warm filling. This prevents condensation and thus microbiological contamination such as mold from being formed. 

Sophisticated hygienic design also for seamers

Like KHS, Ferrum makes the highest demands of the hygiene of its machinery. The greatest importance is attached to the hygienic design of all components in both the ferruBasic and FC series with seamers FC06 (15,000 to 45,000 cans per hour) and FC08 (19,000 to 60,000 cans an hour). “When developing our seamers, we consciously went for an open design without cladding. This makes the components easy to clean and the machine readily accessible to operators,” explains Jörn Winkelmann, process engineer and hygiene expert at Ferrum. 

In the FC series – which is incidentally perfectly compatible with the KHS Innofill Can C – the use of several different angled levels allows condensation and other unwanted liquids to easily run off and not enter the open beverages cans. For the same reason the conveyor segment features regularly spaced openings and the components have an extremely high surface quality to prevent microbiological deposits. Another item of note is the design of the seals that are easy to sanitize as they are installed on the exterior of the machine. The seamer section is made entirely of stainless steel and provides maximum durability even when aggressive cleaning media are used. In this market segment, most cleaning is performed by hand, only the gas injection system and bubble breaker are foam-cleaned in a fully automatic process. Cleaning for the product area is also available as an option. In order to perfectly maintain hygienic conditions both inside and outside the machine, Ferrum supports its customers with extensive training for personnel. 

For can seamers F12 (35,000 to 105,000 cans per hour) and F18 (51,000 to 150,000 cans an hour) in the ferruBasic series, the Swiss company provides optional hygiene packages whose components are largely installed in the FC series as standard. These include, among other things, the installation of an inclined base plate (on the F12 only) and various adaptations to tools that have a positive impact on machine hygiene. Furthermore, since very recently the welded cladding around the upper parts in the standard version has consisted entirely of stainless steel. Ferrum systems F12 and F18, designed for the high-performance range, are therefore a useful addition to the KHS Innofill Can DVD can filler.

Partnership with vision

In the future, KHS and Ferrum will further intensify their cooperation. “Our machines are already very well coordinated with one another. “However, we want to offer our customers even more integrated systems,” states Zubler. Härtel nods in agreement and adds that this also applies to the extensive range of consultancy and other services, where the two partners aim to function even more strongly as a unit in the years to come.

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