Flawless precision on repeat: how Melu-Kids ships a million personalized orders a year with an army of Summa S3TC75 cutters

When your entire business model depends on shipping every order within 24 hours, the cutting stage cannot be the thing that slows you down. For Melu-Kids, the biggest European personalized sticker company on Amazon, growth meant freeing up their printers to print full-time, by integrating 16 Summa S3TC75 cutters into their line-up, giving the Berlin-based company the speed and precision to turn out a million orders a year, without missing a deadline.

Founded six years ago around a single printer, Melu-Kids has grown into Amazon's largest personalized sticker provider, with more than 14,000 customer reviews and a 95% positive rating. The company designs and produces personalized name stickers for pencils, books, lunch boxes, and dozens of other everyday items, shipping across Europe from its production floor in Berlin. For an Amazon-first business built on fast, made-to-order production, that growth only holds up if every stage of the process — including cutting — keeps pace with demand.

The challenge: one machine, two jobs

In its early years, Melu-Kids relied on printers that could both print and cut. It sounds efficient on paper, but in practice a single machine cannot do both at once. Every sheet went through a print job, followed by a cut job, lowering the total amount of sheets that could be handled in a working day. As order volume climbed, that trade-off turned into a bottleneck that meant not even long and tiring working days could provide the necessary output needed to meet the 24-hour shipping promise in the long term.

The fix was to split the two functions apart, so the print & cut machines could stay focused on what they do best — printing — while a dedicated cutting solution took over the second half of the job.

The solution: dedicated Summa S3TC75 vinyl cutters

Three years ago, Melu-Kids brought in the Summa S3TC75, a tangential cutter with camera-guided contour cutting built for exactly this kind of work: high-precision cuts on small, printed labels. Supported by local dealer Farben-Frikell in Berlin and by Summa directly, the team scaled its cutting capacity to match its printing capacity — for every printer now in operation, two S3TC75 units handle the cutting. What started as a handful of machines has grown into a fleet of 16.

The S3TC75 gave Melu-Kids:

• Camera-guided precision cutting, so small, high-detail labels for pencils, books, lunch boxes, and more come out contour-accurate every time

• A dedicated cutting stage, freeing printers to run without interruption

• A short learning curve, so new operators can run the machines with confidence quickly

• On-site training and close support from Farben-Frikell and Summa, helping the team scale the workflow as order volume grew

The impact: a million orders, one working day

With cutting decoupled from printing, Melu-Kids now processes around a million orders a year, each one leaving the building within 24 hours of being placed, all within a single 8-hour working day, no extended shifts required. That kind of turnaround leaves no room for error: on Amazon, a damaged or mis-cut label doesn't just cost material, it costs a review.

"That's why we enjoy working with Summa," say Ruben Achtzehn, COO, and Marc Gregor, Co-founder of Melu-Kids. "They are not just very fast vinyl cutters, they are reliable, hardly any mistakes or errors come up and our team is trained quickly to handle the machines with confidence. Pair that with the support we get from our local dealer and from Summa themselves, and we know we can cut with confidence."

That reliability shows up in the results: Melu-Kids has built and held its position as Amazon's biggest personalized sticker brand without ever loosening its shipping promise, even as order volume climbed year after year.

Looking forward

Going from 1 machine to 16 in three years is a fast ramp-up, and Melu-Kids has no plans to slow down. "We are growing steadily and love how Summa supports us in our constant striving for innovation, thinking along with us and offering solutions to improve our productivity and workflow," Ruben and Marc explain. "From 16 to 60 won't be for tomorrow, but we trust Summa in growing along with us."