REUTER TECHNOLOGIE is your innovative partner for the safe and reliable cooling of your assemblies in vacuum, by providing products and services around high-precision components in copper and stainless steel.

Your advantage – right from the beginning
Benefit from our experience in engineering, designing and machining of precise, vacuum-brazed assemblies in copper and stainless steel for high-end applications. This includes plasma and ion beam sources, electron beam evaporators, absorbers, electromagnetic waveguides, cooling blocks and plates, antennas, and many more.

Your contact with expertise and emotion
Longtime experience and passion in precise machining of assemblies, combined with innovative welding and brazing technologies, are the foundation for first class performance.

Save time and money with quality
Quality right from the start: economic value is respected early on, with a thorough planning and execution. Well-equipped machinery and motivated employees unite all services under on roof. For your success!


One process – a hundred times tightness

The cooling disc is part of a dilution cryostat in an accelerator. Water flows through the cooling disc interior as one of various high-efficiency heat exchangers. Besides design and production of all single parts, the main challenge of this part was assembling and vacuum-brazing of 100 individual parts in one single process step.


The vacuum-brazed copper / stainless steel structure of this sophisticated waveguide serves for the transfer of high energies. As the electric field strengths are extremely high at such power levels, geometrical irregularities may cause the destruction of the component. This is one of the reasons why a highly precise surface finish must be ensured during manufacture and vacuum-brazing.

Electromagnetic Waveguides – for tomorrow’s technologies!

Some of the most exciting scientific projects of our time require a very high accuracy and a precision that appeared unfeasible just a few years ago. In mechanical machining and joining technology, the requirements for tolerances and characteristics have increased to the limits of what is technically possible. The represented copper structures of sophisticated waveguides are intended to transfer very high energies in particle accelerators. As the electrical field strengths are extremely high at such power levels, deviations within the waveguide structures might lead to increased field intensities and, with this, to flashovers and ultimately to the destruction of the component. Therefore, an extremely precise execution of the freeform surfaces and surface finishes has to be ensured during manufacture and vacuum brazing.


Roughness depth up to 25 nm without any post-machining!

The shape tolerances for freeform surfaces of 0.02 mm in combination with a mean roughness depth Ra of 0.1
0,1 µm (partly up to 25 nm) are required to meet the requirements of radio frequency and beam dynamics. No deviations are permitted.

In most cases, this precision must be achieved directly on the processing machine, without the possibility of manual reworking such as grinding, lapping or polishing. This also applies to those joining technologies that likewise have to meet extraordinarily high requirements. The brazing alloy applied on single components (gold alloy) must be so exact that no brazing alloy protrusion is possible after brazing. Otherwise, the waveguide structure is damaged and the component becomes unusable.

During and after manufacture, the generated dimensions are verified with the aid of a 3D measuring machine and in a roughness measurement and documented in detail.

Inner view of an electromagnetic cavity before vacuum-brazing


Robert Amberg

Sales & Technical Consulting

+49 6023 504445

Frank Wissel

Sales & Technical Consulting

+49 6023 504421

Elena Münstermann


+49 6023 504443

Vacuum-brazing cooling components
For your special applications in vacuum


Engineering and manufacturing of customized cooling solutions in vacuum.
For applications in industry, research and science.


Development & 3D Design

REUTER TECHNOLOGIE regularly invests in its own development and design department. Our development engineers use e.g. Catia, SolidWorks and Creo for their design work and optimize our components by means of FEM analyses.

Materials Technology Expertise

REUTER TECHNOLOGIE joins materials such as copper and stainless steel, also in combination with other materials, producing complex assemblies for heat transfer applications.

Innovative Joining Technologies

REUTER TECHNOLOGIE has over 20 years of experience in innovative joining technologies. These include vacuum-brazing, TIG welding, laser welding and, in cooperation, electron-beam welding. Furthermore, we use joining technologies such as diffusion bonding or shrinking.

High precision materials processing

REUTER TECHNOLOGIE supplies tailor-made assemblies in utmost precision. We process metals using 5-axis milling machines and CNC-lathes, treat surfaces in various processes, provide laser markings and carry out electro-mechanic assembly.

Quality & Service

REUTER TECHNOLOGIE exclusively delivers tested quality. We examine components e.g. by helium leak testing, quantitative residual gas analysis, permeability measurement, 3D measurement, cleanroom assembly and particle measurement.