Jonkman Coating
Jonkman Coating
For Jonkman Coating in Hengelo, we manufactured chemical-resistant clamping rings for the spray coating system on one of their pretreatment lines. On this line, metal parts are cleaned with various chemicals prior to coating.
The original plastic rings could not withstand this and completely deteriorated within a few months. Various alternatives did not offer a durable solution.
Jonkman drew up a new design based on the existing ring, after which we recommended 3D printing it in polypropylene.
After two to three months in the system, the printed rings have discolored slightly but are otherwise completely intact. No corrosion, no deformation, and no loss of clamping force.
Technology
SLS 3D printing in PP (polypropylene). PP is highly chemically resistant and has natural flexibility, allowing the ring to grip and seal tightly around the pipe. Production is based directly on the customer’s design, with no mold costs.
Realization
First, a test series was conducted for a two-month field test. Following the successful test, all clamping rings in the system were replaced with 3D-printed versions. Delivery within two weeks of the customer’s order.
What customers make with us
In Rapid Prototyping, we combine advanced techniques such as SLS, SLA, vacuum casting and CNC milling to create functional and aesthetically pleasing products. Think of everything from form studies and working prototypes to reusable packaging and finished series products.
Our customers leverage our wide material selection and finishing options to make complex ideas tangible. Whether it's high-gloss chrome surfaces, color coatings or integrating metal components, we make it possible.
Wondering what's possible for your project? Take a look at our case studies or get contact for advice.




