Bonding varnish windings enable axial flux bonding varnish (Backlack) stacks to be produced with maximum precision. Thanks to the full-surface connection, even delicate geometries can be introduced precisely.

Bonded axial flux lamination stacks are very stable, which makes further processing and assembly easier. Thanks to the wide-area connection, the axial flux bonding varnish (Backlack) stack can be machined like a milled part (holes, threads, etc.). Installation can be carried out without requiring any additional components.

The material can be wound directly onto a hub, which subsequently remains an integral part of the stator or rotor. A high-strength stator or rotor with integrated hubs and/or threads can therefore be realized using this process, eliminating the need for other components.

Unlike welding, bonding does not cause short circuits between the laminations. When we use machining, we have methods for eliminating short circuits, resulting in better magnetic properties and fewer losses.

The laminations do not fan out and the full-surface connection reduces vibration and noise, something which is ideal for meeting the increasing demands of the market.

Dirt and particles are firmly bonded thanks to the wide-area connection. The cleanliness is higher. No liquid is drawn in between the laminations.

Full-surface bonding improves thermal conductivity within the lamination stack, as bonding varnish (Backlack) has a better thermal conductivity than air. Even optimized bonding varnish (Backlack) with higher thermal conductivity can be achieved.

Bonded axial flux lamination stacks can be mass-produced using state-of-the-art processes and with maximum reliability. Our fully digitalized processes provide more transparency than any other process.