Air leak testing machines for E-Motors and complete Electric Drive Unit

The leak test, when performed on blanks, typically aluminium castings, allows any porosity and defects in the part to be identified before more costly machining is undertaken. The figure below shows an example of a raw part application where the cooling circuit, inverter compartment and stator housing are tested at different stations.

After the machining phase, it is usually necessary to proceed with the assembly of some technological plugs (cup plugs, thread plugs, spheres or sealing rivets) required to close any machining holes, rather than core support holes, during the casting process.

Once the plugs have been fitted, it is necessary to carry out a leak test on the plugs alone or on the entire circuit to which the plugs have been fitted.

Having a single supplier for both the connector assembly machine and the subsequent leak test offers the end customer the advantage of having a single point of contact for these two essential operations to guarantee the quality and functionality of the finished part.

For this reason, we offer our customers both applications (assembly and leak testing) either as separate solutions or integrated in an automated cell.