Knoll Maschinenbau GmbH
Top-quality welds & spatter-free pulse welding with Fronius
Highest quality standards for the automotive industry, medical technology, and aviation
Founded by Walter Knoll as a one-man business in 1970, the company today manufactures advanced industrial systems in Germany, Poland, China, and the US. Knoll occupies a leading position in terms of technology, quality, and brand awareness in sectors ranging from the automotive industry, to energy and medical technology, through to machine and plant construction and the aerospace sector.
- Sites: 7
- Employees: ±1,100
- Manufacture of: cleaning systems, chip conveyors, pumps, central systems, assembly conveyor belts, automated guided vehicles (AGV), cobot solutions
- Fronius products used: TPS 320i
- Process application: MIG/MAG pulse welding process with synergic function
“As a solution provider, we offer all the necessary services from a single source—from project planning and manufacturing, to commissioning and service. We do our machining in-house, so potential buyers can see the advantages our products have to offer for themselves in real-world operations.”
The challenge at KNOLL
One of the biggest welding challenges at Knoll is processing thin sheets. The team needs to join components with material thicknesses from 1–6 mm with little heat input—while keeping warping to a minimum. Many of these components are visible parts, so the seams have to be perfect from a metallurgical perspective and look great at the same time. Given these requirements, the welding process has to be largely spatter-free with a low seam build-up.
The solution: low-spatter pulse welding
The welding specialists at Knoll use the TPS 320i welding machine in combination with the pulse welding process. The intelligent MIG/MAG pulse synergic function offers a pulsed arc process with controlled material transfer. In the base current phase, the energy input is reduced to such an extent that the arc only just burns steadily and preheats the surface of the workpiece. In the pulsing current phase, an accurately controlled current pulse ensures targeted droplet detachment. Both phases result in precise, low-spatter welding across the entire power range.
Product in use
- Integrated data documentation
- Intuitive touch display
Downloads & press releases
On this page, you’ll find all relevant downloads related to the customer reference. These include photos available for download as well as a detailed case study with further information about the project.
For the latest news, press releases, and information about our products, solutions, and our company, visit our news and press section . There you’ll find exciting insights into the technologies and innovations that Fronius is driving forward worldwide.