terminals for Al-conductors are made of solid material. We produce the
terminals using friction welding, which means that the aluminium is
joined to the copper. This is done by rotating the aluminium while in
contact with the copper under pressure, which is the method that
provides the best bond between aluminium and copper. We manufacture type AKK, AKS and AKP
& Al/Cu-connectors, but also many customer-adapted
terminals (including some larger than 1200 mm˛).
Type AKK terminals are used to terminate Al-conductors at Cu bus bars.
AKS type through connectors are used for joining Al-conductors to
AKP type pin sleeves are manufactured for connecting Al-conductors to
apparatus with copper terminals.
AKS-10S type transition through connectors are used for joining stranded
Al-conductors to solid 10 mm˛ Cu-conductors (e.g. Excel, Excelett).
Markings and number of crimps
Al/Cu-terminals are marked with a logo, conductor cross-sectional area
for stranded and solid conductors, and references to pre-forming and
crimping tools within the Elpress range. The tool reference for
hexagonal crimping of copper is also stated on through connectors.
When crimping is completed with the correct tool, the Elpress dies and
punches stamp the sleeve so that all connections can be checked
Except for the hobby tools, there is a built-in full closure system
which ensures that the complete crimping procedure has been performed –
a condition for ensuring a professional and high quality job. When
crimping, two crimps are always performed on the Al-section and usually
only one on the Cu section. Always check the recommended number of
crimps before crimping.