3mmatic-random-promo 3M

Case Closed: 3M Solves the Random Boxing Dilemma

The new high speed 3M-Matic Random Case Sealer has a very specific agenda: increase throughput and make workers’ jobs easier. And for ecommerce, it could be a game changer.

In northern Illinois, contract manufacturer creative werks’ busy season is coming to an end. The co-packer has wrapped up production on a full range of confectionary consumables for the holidays—candy canes, form-filled pouches full of goodies, and the like. For this holiday run, the company’s three facilities were operating 40 production lines staffed with six to 24 workers on each, for all three shifts, six days a week.

It’s a lot of manual labor filling these boxes, and David Younk, creative werks’ director of manufacturing, has one goal for each worker, many seasonal, under his purview: "If they come in with a smile, I want them to leave with a smile," he says. "I want them to want to come back to work. There’s some intensive labor. If I can make their jobs easier, that’s one of the things I look for."

He says having the 3M-Matic Adjustable Case Sealer 7000a Pro to tape up the end-loader boxes at the end of the packaging process helps ensure that the work load is manageable.
The machine consists of a conveyor table with belt-driven tape heads overhead and below the cases passing through, seamlessly securing each package top and bottom almost instantaneously. According to manufacturer 3M, the maximum throughput is 40 boxes a minute; Younk says creative werks, which has a dozen machines, averages about 20.

They had an older model of the 3M-Matic, a line of case sealers that turns 50 next year, but shifted to another brand until a few years ago. The 7000a Pro came out in 2014 and that brought Younk back to the 3M.

"When I saw the updated versions, they renewed my faith in 3M’s products," Younk says. "One of the great things about the 7000a, once we set it up, I’m good to go for 4 months with very little worry of downtime."

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For a co-packer that can change their lines for new SKU’s every couple of days, downtime isn’t really an option. And flexibility is a priority, as the box sizes that can range from 12 x 12 x 18 in. to 8 x 8 x 8 in. With a twist of the crank of the case sealer’s side, the top tape head conforms to the new specified height. And each time, the machine ingests the new box quickly and smoothly.

These don’t jam up," says Younk, who explains that the top head’s guidance keeps taller, skinnier boxes from tipping over. When you have high-volume operations, a random clog halting the flow would be most annoying to the person who has to unclog it. Eight hours of manual labor anywhere is tough enough, but it’s the little things like a clumsy machine breaking up your rhythm that can wipe that smile off your face.

Threading the tape into the head takes a minute, Younk says, though they earned additional tape heads for using 3M tape, which they keep at the ready for hot swaps.
So the change was noticed.

"The workers appreciated the move," the director says.

With so many jobs available out there, job satisfaction becomes paramount, and apparently this is only a microcosm of the business’ attempt to creative a positive environment. It has a stellar rating on Glassdoor.com (4.5 stars based of 8 reviews), where innovation and continuous improvement are common themes.

The only negative one engineering intern offered was that "you work with candy so if you eat a lot of it your stomach will hurt."

And a company like this needs humans, because flexibility and automation are at odds, having to sacrifice one for the other.

"We can’t truly automate and be flexible," Younk says.

A 7000a, he says can pay for itself in a year, though that’s not the most important factor.

"Having people come back the next season, because they enjoy their job, I would take that over ROI," he says.

Last month at PACK EXPO, 3M, known worldwide for its revolutionary Scotch tape, announced a new innovation for packing, one that could not only increase opportunities at co-packers, but also provide support to the ever-growing ecommerce industry.

Random Encounter

Called the 3M-Matic Random Case Sealer 7000r High Speed Pro, it looks nearly identical to the solution creative werks uses, with one major tweak. The upper head has been automated, allowing various sized boxes to all run down the same parade route without missing a beat, granted they are all between 3.25 and 27 in. in height. An add-on increases that to 13 to 36 in. Case length is at least 7 in., and width can range from 7 top 26 in.

An optical sensor quickly relays box height via an onboard PLC to the center arm, and the electro-pneumatic height adjust system dips or lifts the AccuGlide 4 Taping Head to meet and seal the roof of the next box. The width of the rails securing sides of the box also adjusts for added stability. The belt speed is 150 feet per minute. Overall, the system can handle up to 28 boxes in that frame.

The rub is that quality must remain consistent for each box that goes through, which for some, such for a frenetic fulfillment center on the scale of Amazon, could be a quantity in the tens of thousands. And the boxes themselves keep getting more ornery.

"There’s a lot of pressure that gets put on a box," says Chad Klosterman, U.S. marketing manager for packaging business and custom packaging solutions at 3M. "As those highly recycled content boxes get weaker and weaker, you can run into a problem with crushing boxes as you’re trying to seal them."

Klosterman explains the AccuGlide 4 taping head’s "very soft touch" ensures high throughput without damage to the boxes, which immediately, or later in transit, could affect the contents of the box.

If you’re still getting by with manual tape dispensers, the kind you may use at home before a house move, and even then only sporadically, a $9,000+ automated case sealer shouldn’t be a priority. But for medium- to high-volume packaging operations, the 7000r makes sense for your people and production.

Some key industries include any that have several sizes of boxes, including electronics, pharmaceuticals, food and beverage, and of course, ecommerce facilities. These perpetual shippers are the real reason 3M thought to automate their 3M-Matic to this level.

Ecommerce brought in $2.3 trillion in sales globally last year, according to Statista, and in America accounts for 10% of all retail sales. That is expected to grow 15% a year.

"This becomes a major game changer for them and can actually eliminate any type of constraint they have in getting boxes out the door and shipping to their customers," Klosterman says.

The tape’s tight adherence to the box also keeps potential thieves from pushing down on the top of the box to fish out the contents.

The real value most manufacturers will achieve is labor and overall productivity.

"From a safety standpoint from just sheer labor standpoint you put a machine in there and you can get one person to run the box into that machine as opposed to 10, or 20 or hundreds, and increase your throughput and reallocate that labor somewhere else on activities that are more value added," Klosterman says.

As the machine was just introduced, Younk from.creative werks has not gotten a chance to try it out, but does see how it the new random sealer could benefit his business, despite their boxes being uniform for each line.


The upper tape head quickly drops to seal boxes as short as 3.25 in. high, changing to heights of up to 27 in., handling up to 28 boxes a minute.

"One thing we’ve had to do is structure so one size does fit all, so this would allow us to potentially broaden our horizon in what we can design," says Younk. "Not all consumers want the same exact thing."

The supply chain, however does want the same things: consistency, dependability—and the ability to change at a moment’s notice.

Tale of the Tape Dispenser

When you work in the tape business, you know not much is permanent. Something sticks for a while, and then loses out to the new trend.

That’s how the 3M-Matic was invented. Stapling and gluing boxes fell out of favor, as industry is always trying to continuously improve, and the time and quality of both of these options does not compare to applying a strip of tape.

Expecting someone to use a manual tape dispenser for eight hours a day, five days a week and also expecting uniform quality is completely impractical, so the table with rollers design was deployed. The Minnesota-based 3M could not confirm they were the very first to use the design, but affirmed they were one of the first.

The value proposition was simple, says Steve Schreiner, U.S. subsidiary business director for 3M’s industrial adhesives and tapes division: Sell customers on the "productivity, speed and lower cost per closed box" the company could provide with this new semi-autonomous, more ergonomic and repeatable solution.

The former Minnesota Mining & Manufacturing Co. certainly had the experience with the adhesive part, as the company invented modern tape. In the 1920s, its ambitious young lab technician/banjo player Richard Drew saw autobody painters using glue to cover the already completed portion of two-toned cars. The glue stuck to the surface and the job would often have to be touched up. Drew used a less sticky adhesive intended for the company’s sandpaper, combined it with crepe paper, and voila: Scotch masking tape was born. The "Scotch" part was meant to be an ethnically derisive poke at the frugal use of adhesive, but 3M embraced it. A few years later, the company figured out how to add adhesive to cellophane, to make Scotch transparent tape, a hit for the great many Depression-era penny pinchers who often had to mend over spend.

That’s the mythic part of the story, but what people don’t realize is how difficult it must have been to get all the key ingredients right.
It something Schreiner learned the value of when he started at 3M 35 years ago as a product development engineer.

"This can’t be that complicated; it’s just a roll of tape: sticky side down," Schreiner recalls thinking. "You start looking at what goes into that, the variety of chemistry that goes into making that adhesive work, properties that counteract each other."

He says it has to be tacky, but not so much that it sticks to the other side of the roll. Conversely, if it is not sticky enough, the roll will unfurl like a ball of yarn. Somehow, they figured out how to do all that without the use of artificial intelligence or the internet of things, or even the Internet itself.

Decades later, the packing division at 3M would need tape that was sturdy enough to keep boxes closed, but could quickly pull off the roll. Some of the first were, in keeping with the Scotch tradition, the Tartan and Highland brands.

The newest version, the 371+ tape, was designed to stick to highly recycled boxes, which have become more prevalent as companies work towards lowering cost and increasing sustainability.

Because of its history, convincing a potential buyer of 3M’s tape pedigree was probably easy for Schreiner, who in the 1990s ran 3M’s box-sealing business. Getting them to invest in a new piece of equipment may not have been. But Schreiner came with data. Using the older 700r random case sealer, they halved the time it took for a company to complete a complicated sealing procedure.

Sealing the Deal

The most apparent reason one would need an automated sealer is the same one automation has taken such a crucial role up and down the manufacturing supply chain: no one wants to do the job.

"There are less people available with a willingness to close boxes," Jorge Lopez, 3M business director for masking, packaging, and personal care products. "During the Christmas season, it becomes a mission impossible."

Along with that, more and more fulfillment centers are popping up. Soon the former book seller Amazon could rule the Americas, while Alibaba is slowly taking over Asia.

The 7000r obviously allows for faster throughput and requires less human interaction, and it isn’t a stretch to imagine a robotic arm lifting boxes into case sealers at some point. An overlooked benefit could be how eliminating the need for box uniformity could impact the supply chain.

"If you can reduce size of boxes, it’s a relevant savings for everybody,"’ Lopez says.

This is because often times a packager will load various sized products in one-size-fits-all boxes. You don’t need to be a lean expert to see that this wastes material.

"It’s not only about materials," Lopez says. "You are saving in cardboard, and also the cost of transportation."

This comes down to needlessly consuming volume. If each box was optimized for its contents, it stands to reason many more boxes could fit on the truck or pallet. Even if the haul’s weight is increased, this could be the difference between an extra order or more going out. Apply that to a whole supply chain and the efficiencies could grow exponentially.

Those saving could then be used for more value-added investment, like those AI and IoT projects you can’t get funding for, as opposed to spending on taping up boxes.

That’s something that will have employees and bosses alike start to smile.


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