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12th January 2018, Minneapolis, MN/Rehovot

Stratasys saves time for The Chocolate Factory

Dutch 3D service bureau, Visual First, is using Stratasys FDM Nylon 12CF carbon-filled thermoplastic to replace metal machine parts for its customer, The Chocolate Factory.

The ability to 3D print machinery replacement parts on-demand has significantly reduced machine downtime, ensuring production line continuity for the company.

3D printed replacement machinery parts manufactured on-demand in under a week using the Stratasys Fortus 450mc production 3D printer, compared to over a month using traditional methods. © Stratasys

Based in Rotterdam, Netherlands, The Chocolate Factory runs a network of packaging machines, with the company’s daily throughput relying on the smooth operation of a simple, yet crucial, hook-shaped metal part that lifts wrapped bars onto a conveyer belt. A problem occurs when the part malfunctions – typically with such regularity that it needs replacing three times a month. As each replacement part is handmade, delivery can take over a month.

“It is crucial that the packaging machine is always operational, especially during hectic periods such as Christmas,” explains Carl van de Rijzen, owner OF Visual First. “With Stratasys additive manufacturing, we can produce customiSed replacement parts on-demand that can perform just as effectively as the metal machine parts. We can 3D print and deliver production parts to The Chocolate Factory in under a week, which is vital to ensuring manufacturing line continuity.”

Van de Rijzen uses Stratasys high-performance FDM Nylon 12CF composite material, a carbon-filled thermoplastic containing 35% chopped carbon-fibre. Produced on the Stratasys Fortus 450mc production 3D printer, the 3D printed replacement machine part is currently being used at the factory. According to van de Rijzen, the team at The Chocolate Factory are impressed with the high stiffness-to-weight ratio of the FDM Nylon 12CF, resulting in parts of extreme rigidity.  

“The success of the 3D printed part was instantly clear – the material is impossible to bend,” he says. “The part withstood all tests on the machine and multiple runs were completed without incident. The factory is now enjoying increased production throughput by replacing the metal machine part with our 3D printed version.”

Previously, constant human intervention meant that the functionality of the metal part suffered, and the machine was often damaged.

“Now, with the ability to optimize the design of the part with the Fortus 450mc, this has improved due to the part being much lighter than its metal counterpart,” says van de Rijzen. “The Chocolate Factory is also enjoying significant economic benefits too, with the team reporting a 60% cost reduction on the part.”

The Chocolate Factory is now turning to Visual First to solve other design challenges – most notably, to develop a prototype casting mould to test acceptance of its products. Traditionally this is made from plastic, which is both time consuming and expensive.

“With 3D printed moulds created on the Fortus 450mc, the company will be able to further accelerate its production processes,” says van de Rijzen.

“We’re witnessing a growing demand for 3D printed production parts and replacement parts for industrial machinery, especially for packaging machines,” says Nadav Sella, Head of the Stratasys’ Emerging Solutions business unit. “These machines require a high-level of customization due to the large variety of products that are packaged. In many cases, the use of additive manufacturing can not only save time and cost during the manufacture of such machinery, it can also make them more efficient by reducing weight, simplifying the design and increasing functionality.”

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