Cold runner

Low temperature sprueing area of a mould in which the vulcanization of the elastomer mixture in it is prevented. With a cold runner the resulting amount of vulcanized waste can be substantially reduced in the production of rubber moulded parts since the unvulcanized material in the channels can be used for the production of moulded parts. Depending on the type of construction a distinction is made between the nozzle cold runners and transfer moulding cold runners.