Externally heated manifolds offered by DME have evolved and improved over time to meet the pace of changing technologies. In the past, manifolds were relatively large and heated by cartridge heaters. Many customers still have molds today that use these older components, and other customers prefer to build their own hot runner manifolds using this method. For this reason, DME continues to offer components for this older type of hot runner system, both as replacement items and for customers who wish to build their own. All the necessary information is provided in the DME Catalog.
Over time, DME has moved to using tubular heaters to heat manifolds. An example of this is the DME Meteor Manifold system. The manifold melt channel tapered plugs are machined with a different method than the older, cartridge-heated manifolds. Custom hot runner manifolds produced today by DME are built in a manner very similar to the DME Meteor manifolds.