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Craft Brewing—Quick Hits 2020

The steadily growing popularity of aluminum cans in the craft brewing segment has some brewers mothballing their glass bottling lines altogether.

At Fathead’s, cans exit a 24-head filler and are conveyed through an inspection system that checks for proper fill levels.
At Fathead’s, cans exit a 24-head filler and are conveyed through an inspection system that checks for proper fill levels.

Countless craft brewers now offer cans in addition to glass bottles. In fact, the Brewers Association predicts this is the year that cans will outnumber bottles in distributed craft beer.

But would a brewery go so far as to eliminate bottles altogether? At Fathead’s Brewery in the Cleveland suburb of Middleburg Heights, the answer is yes. When the firm installed a new canning line in 2019, management decided to say goodbye to its bottling line.

“As we planned out the canning line we were really thinking we’d keep bottles, too,” says Head of Operations Chris Alltmont. “But our bottle filler is only a 12-head machine, so we were running about 75 bottles a minute. That’s not nearly as productive or efficient as the 225 per minute we get on our canning line. Not to mention that beer quality is better in cans, for us at least, because we eliminate more oxygen in the head space with cans. And on top of all that, the market seems to be demanding cans from craft brewers.”

And so it was that Fathead’s went all in on cans. Line integration, depalletizer, and all conveyor connections on the new line are from Ska Fabricating. After single filing of the undecorated cans and an ionized air rinse, shrink sleeve labels are applied by an HSA245 Applicator from Tripack. It features a Rockwell controls package, including a CompactLogix controller, touchscreen HMI, and servo-driven high-speed film delivery with multi-blade knife assembly. Can size changeovers are selected at the touchscreen from a menu of options. The labels are shrunk tight to the cans by a Tripack ST-2-45 Steam Tunnel.

Next is filling, done on a CFT 24-head filler/seamer. A Filtec inspection system then checks for proper fill levels before a Markem-Imaje ink-jet coder marks can bottoms. Then comes a stretch of accumulation conveyor followed by a multi-packer from Switchback that, says Alltmont, “does 12- or 16-oz cans in everything from a four-pack to a 30-pack carton.” Hot melt adhesive is applied by a Nordson unit.

At the outfeed of the cartoner is a laser coder from Markem-Imaje that puts date code information on the paperboard cartons. Placement of multi-packs into corrugated trays is done by hand for now, as is palletizing.

Turlock-based Dustbowl Brewing
A few thousand miles west of Fathead’s, at Dustbowl Brewery, there’s also a new can line in operation. But bottles remain in the mix. “We see significant sales of the bottle format for four of our core beers,” says Don Oliver, Brewmaster at the Turlock, Calif., brewery. “One of them, Therapist Imperial IPA, is in a 22-oz bottle, and sales on that item keep growing. So we’ll stick with bottles, though in some respects the handwriting’s on the wall where bottles are concerned.”

Oliver says that by early 2018 it was pretty clear that to not have cans was to miss an opportunity. So as management started to evaluate the firm’s capital situation, Dustbowl launched cans by using a mobile canning service to get into the market.

Dustbowl CartonerDustbowl makes good use of this semi-automatic cartoner for cans. Says Brewmaster Don Oliver, “Hand filling and gluing thousands of cartons is less than fun.”By 2018, however, in-house canning was in full swing with a filler from Codi handling 12-, 16-, and 19.2-oz sizes. The 12-oz cans are filled at about 50/min. “We decided to order a six-nozzle in-line Codi CCL-45 filler and also relied on Codi for nearly all of the accessory items for the line, including the SH-45 single-head seamer, depalletizer, overhead conveyance, triple twist rinse with ionized air rinser, and accumulation conveyors,” says Oliver. The filler, he adds, was especially appealing because it takes the counter pressure filling technology typically only available in large rotary systems and scales it down to an affordable linear filler. The system also features CO2 pre-purge, an integrated snift feature, full control of the filling cycle, and a pump-powered product storage tank to increase tank pressure and thus keep beverages in solution at higher carbonation levels.

For its higher-volume beers, Dustbowl uses pre-printed cans. For special or seasonal beers, pressure-sensitive labels are applied by a Pack Leader labeler. Date coding on the bottom of the cans is done by a Videojet ink-jet unit situated right after the ionized air rinser.

Secondary packaging into paperboard cartons is accomplished with a big assist from an Econocorp Twin Seal carton sealer. “Hand filling and gluing thousands of cartons is less than fun and not very practical,” says Oliver. “After looking over a few options, we opted for the Twin Seal. Pushing the cans into the set up carton is still a manual operation, but the machine dispenses the hot melt adhesive and performs the flap folding and compression for a consistent look and reliable package integrity.”

To operate the Twin Seal, the operator pushes cans into a carton and then places the loaded carton into the machine with the inner flaps closed. Then the operator pushes the start button. Glue is automatically applied to the underside of the carton flaps and the carton is elevated into a vertical squaring/compression chamber. Finally, sealed cartons are automatically sent down a delivery chute discharge.

One final data point on Dustbowl. From 2018 to 2019, can sales increased 412% while sales of bottles dipped by 31%.

Karbach goes for billboard effect
Cans have been a part of the mix at Houston-based Karbach Brewery for some time now. But steady growth brought a new canning line into the brewery that went into operation in early 2018. Greater speed was a key requirement, but also a priority was a switch from ring carriers for multipacks to paperboard cartons that are erected, loaded, and glued by a system from
Westrock.

“We wanted that better billboard effect that you get with the paperboard,” says Karbach Brewmaster Eric Warner. “There was also the occasional complaint from consumers who struggle to conveniently snap a can out of the carrier, but mostly it was improved appearance on shelf we were after.”

Karbach Stretch WrapperAt Karbach, as pallets are discharged from the stretch wrapper, a print-and-apply labeler applies a label to each pallet.Most of the other equipment in the new line was supplied by CFT, which was also the supplier of the first can line installed at Karbach. But at 480 12-oz cans/min, the new line runs twice as fast as the one it replaced. Also filled on the line are 19.2-oz cans.

“The earlier line was pretty much just a depalletizer, rinser, filler/seamer, and some basic conveying,” says Warner. “But the new one is fully automated front to back. We also added a can warmer from CFT. Houston is a very humid place, and by warming the cans up to the dewpoint we can avoid condensation, which causes real problems with your paperboard multipack.”

Depalletizing is first, of course, and it’s done on a CFT Model 102. As cans are conveyed away from the depalletizer they’re single filed and a Videojet 1560 ink-jet coder puts lot and date code on can bottoms. Cans are upended on a CFT twist and rinse conveyor section, where filtered water accomplishes the rinsing.

Next in line is a CFT monoblock filler/seamer. The counterpressure filler has 50 servo-controlled valves and is followed by a six-station rotary seamer. “We like that the filler and seamer both come from the one machine builder, as opposed to a filler from one supplier having to be integrated with a seamer from another,” says Warner. “And we’re always looking for low oxygen uptake on the beer, which the counterpressure filler gives us.”

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