The double wall chimney pipe with smooth inner surface is meanwhile a standard multiflue chimney liner in many countries. A DROSSBACH machine is still the only one world-wide which produces this pipe made from one strip only. In order to strengthen the connection of the pipe - the lock - customers have the easy possibility to equip their double wall chimney liner with the Omega Lock. This folded joint is up to 8 times stronger than the traditional connection. An opening of the pipe at this point is all but impossible.
Customers, who decide to switch the production to Omega Lock could easily and quickly do this with a conversion kit. This kit comprises two new forming roller pairs, a new fold guide unit, two new pressure rollers and an additional fold guide unit in the profiling cassette. The existing diameter tool sets can still be used.