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Vario Cold Runner

Valuable possible savings for the small-batch production

The innovative DESMA Vario cold runner technology enables that nozzle distances are variably adjusted for the first time so that different molds can be covered. This provides the possibility of multiple usage through easily adjusting the nozzle positions. Thus the Vario cold runner offers major savings for the small-batch production as well.


  • Valuable cost-saving potential especially for small series
  • Variably adjustable nozzle distances enable multiple usage for various molds
  • Sophisticated nozzle technology allows for easy purging of vulcanized distributing channels
  • A naturally balanced distributing system ensures uniform injection
  • Balancing at the individual nozzles can be optimized by using balancing inserts
  • The distance of the nozzle bore holes can be continuously increased, for example, from 260 mm to 420 mm
Vario Kaltkanal

Perfected nozzle technology

The purging of cured distributing channels is easily feasible despite most different nozzle positions. A naturally balanced distributing system ensures uniform injection irrespective of the nozzle adjustment. Despite the natural balancing, slightly different purged-out weights do always result in practice. If required, they can be optimized by available balancing inserts. Various tests in the DESMA process engineering center revealed that the nozzle position had only little influence on the quantities of material purged out. Moreover, the adjustment range (nozzle positions) can be infinitely increased to
420 mm which involves tremendous advantages.

Which cold runner is the ideal one?