Fusion technology  


We are manufacturers of the fusion machine Vulcan used in sample preparation for X-ray fluorescence analysis (XRF). Fusion technology is a method for preparing samples for analysis with X-ray fluorescence spectrometers. Fusion technology for XRF is a method that allows increasing the accuracy of the analysis by homogenizing the sample and producing a fused bit with an ideal surface.


For equipping your laboratory, we recommend our Vulcan auto fluxer. These are gas-operated fusion devices used in industrial laboratories for quality control of raw materials and manufactured products line cement, glass or steel. We offer various models of automatic fusion machines: two, four, and six positions. Automatic fusion machine Vulcan (MA) is available in versions for preparing samples for XRF analysis as well as for preparing samples for ICP/AAS analysis. There is also the option to combine XRF and ICP variants (e.g., two XRF stations + one ICP station (21MA)). An additional feature in our gas-operated auto fluxer Vulcan is the crucible checking function. This feature reminds you to place the platinum crucibles and prevents pouring the sample into the laboratory device.


For the fusion process, platinum ware is essential: platinum crucibles where the melting process takes place, and platinum molds (XRF pouring crucibles) used to pour a glassy tablet for XRF analysis. These crucibles are typically made of a platinum-gold alloy in a ratio of 95% platinum to 5% gold. We offer platinum ware that produces tablets with diameters of 40 mm and 32 mm. For handling platinum crucibles and molds, we recommend using special platinum tongs with platinum ends (platinum crucible tongs), which you can also find in our range.


To produce an XRF glass bit, a coordinated sample preparation and the use of fluxes are required. The basis of sample preparation consists of: grinding the sample, annealing, and weighing the sample. During weighing, the sample is mixed with the flux - typically using lithium tetraborate or a mixture of lithium tetraborate and lithium metaborate. Fluxes in various proportions are available, also with additives that reduce the surface tension of the sample (LiBr; LiI). Some samples require different additives for XRF digestion. In our range, you will find oxidizing agents for iron alloys, slag, etc., as well as agents to reduce the surface tension of the sample.

Do you have any questions about producing fused bits in your laboratory?

Please feel free to contact us.

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