TECHNOLOGIES – Tau Group

E-mobility is a game changer to the extent that it wants it all: smaller and yet more powerful motors, sustainable and yet lighter materials, extremely reliable, with fully traceable parts and yet inexpensive. We love it – as this is exactly what we do and what we provide to our customers in e-mobility - but also in automotive, energy and oil & gas.

To put more power into smaller motor, developers play with variables like higher voltages, greater filling factors or SiC-based frequency modulating inverters. This demands from the insulation greater thermal, electrical, mechanical and chemical resistance to avoid rapid degradation – breaking the boundaries of traditional technology.

We listen to OEM, tier 1 and motor developers in general to provide partial discharge-free winding wire, withstanding corona effects in inverter surges, high vibrations and temperatures over 200 degrees Celsius. Wire that can withstand elongation and deformation from novel designs such as hairpin and needle winding.

In a nutshell, we provide e-mobility with the winding wire it needs.

Our DryCycle process brings long-desired sustainability, performance and reliability to wire coating. It takes all the advantages of enamelling and extrusion and gets rid of their respective disadvantages: combining enamelling’s adhesion, thinness, and thermosetting polymers with extrusion’s solvent-free, dry, additive process, thermoplastic materials and ability to process many geometries.

Eliminating dangerous and pollutive solvents from the wire manufacturing process is a game-changer just as achieving homogenous thicknesses at the edges of rectangular wire, fingerprinting the produced wire and avoiding almost all scrap.

Bringing deep, predictive insight is crucial in state-of-the-art manufacturing. Permanent, non-invasive quality control is the new standard for e-mobility where each component must be checked and traceable. Knowledge instead of guessing. Facts instead of assumptions.

Lilit brings efficiency into one element of the insulation process: curing. Tracking the gradual cross-linking of polymers is key in the manufacturing of components such as winding wire, electrical steel stacks with self-bonding varnish or optical fibre.

Blog

Spotlight on Backlack

Hagen, Germany, 28 May 2020 - With the help of LILIT, a contactless testing system during ongoing production, Waelzholz ensures that the Backlack coating is extremely homogeneous over the entire length of the strip.

Tau Secures €4.5 Million Series A Funding from ALTANA Group

Turin/Berlin/Wesel, March 4, 2020 – Turin-based e-mobility and advanced materials venture Tau has secured a €4.5m series A equity investment by the corporate venture arm of ALTANA Group, the German specialty chemicals company.

TAU and Axalta at the Literal Core of E-mobility: Electrical Steel

Turin, Italy, 1 March 2020 - To perfect the curing and subsequent bonding of the magnetic steel core of electric motors and optimize process efficiency, Axalta partners its Voltatex® self-bonding enamels with Tau Industrial Robotics’ LILIT®.

Axalta and TAU Industrial Robotics Shed Light on Curing

Turin, Italy - 5 April 2019 - Users of Voltatex insulating material from Axalta, a leading global supplier of liquid and powder coatings, can now exclusively have access to the newly-developed LILIT.