  The 19 towers constituting the CUORE detector are an assembly of
ultra-radio-pure components made of copper and PTFE plus tellurium dioxide
crystals for a total of more than 10,000 pieces. A dedicated assembly line is
mandatory to handle and assembly those parts minimizing the risk of
recontaminations induced by external agents both during their construction and
their storage prior to installation inside the cryostat. The assembly strategy
and the tools design, proposed in this paper and developed for CUORE, offer
solutions that can be extended to the construction of similar-size detector
with strict requirements on contamination.
