The Challenge of Thin Sheet Welding in Mechanical Engineering

Welding is carried out with the Fronius TPS 320i, a reliable welding machine that leaves nothing to be desired when it comes to handling, welding processes, and functions.

"It works" is the motto of Knoll Maschinenbau GmbH in Bad Saulgau, which lies in the heart of Germany's Upper Swabia region. Founded in 1970 by Walter Knoll as a one-man company, today more than 1,100 employees manufacture advanced industrial systems in Germany, Poland, China and the USA. Welding is carried out with the Fronius TPS 320i, a reliable welding machine that leaves nothing to be desired when it comes to handling, welding processes, and functions.


Knoll enjoys a leading position in terms of technology, quality and brand awareness. The Swabian family business is economically independent and creates added value for all companies in which metal is machined in the automotive industry, in energy and medical technology, in machine and plant construction, and in the aerospace sector.

High Real Net Output Ratio
The advanced solutions from Bad Saulgau optimize the performance of many machine tools. Resource-conserving cooling lubricant cleaning systems, chip conveyors and pumps are produced. The product range also includes central systems, which are individual pieces of equipment linked to form one system. They are required for the fully automatic transport of chips and cooling lubricants to central processing plants. Automation solutions for assembly lines and intralogistics are another mainstay for Knoll. Examples include assembly conveyor belts, automated guided vehicles or cobot solutions.

Joachim Riebsamen, Shell Construction Production Manager says, "As a solution provider, we offer all the necessary services from a single source: from project planning and manufacturing, to commissioning and service. We believe that good customer relationships are based on transparency and trust. That's why we don't just rely on a website, brochures and sales pitches. In-house machining allows us to convince potential customers about the advantages of our products using real operations."

Featured Product

T.J. Davies' Retention Knobs

T.J. Davies' Retention Knobs

Our retention knobs are manufactured above international standards or to machine builder specifications. Retention knobs are manufactured utilizing AMS-6274/AISI-8620 alloy steel drawn in the United States. Threads are single-pointed on our lathes while manufacturing all other retention knob features to ensure high concentricity. Our process ensures that our threads are balanced (lead in/lead out at 180 degrees.) Each retention knob is carburized (hardened) to 58-62HRC, and case depth is .020-.030. Core hardness 40HRC. Each retention knob is coated utilizing a hot black oxide coating to military specifications. Our retention knobs are 100% covered in black oxide to prevent rust. All retention knob surfaces (not just mating surfaces) have a precision finish of 32 RMA micro or better: ISO grade 6N. Each retention knob is magnetic particle tested and tested at 2.5 times the pulling force of the drawbar. Certifications are maintained for each step in the manufacturing process for traceability.