Rudolf Koller discovered the whirlpools in the USA and brought them to Europe. During the past few decades, Koller has provided these systems with a lot of innovative features and thus improved the whirlpools. 

Using state-of-the-art technology and constantly investing into new machinery, Koller manages to meet customer wishes flexibly, quickly and easily. Brass and sheet metal parts, as well as printed circuit boards, switches, remote controls, and cables of all lengths and dimensions are produced.

In the fields of injection moulding and mould making, Koller has sufficient experience and sound knowledge to ensure an optimum design of moulded parts and tools. Development and production from one source are the basis for high-quality plastic parts.

Apart from the technology for whirlpools and metal and plastics technology, the company of Rudolf Koller is also an expert for a completely natural material: wood.