Hot Runners

Mold-Masters patented the first commercially viable hot runner system in 1963. We’ve come a long way since that first design. Today, the Mold-Masters hot runner product line has expanded and represents the broadest selection of Hot Runner products from any manufacturer. Throughout our history, Mold-Masters innovations have continued to drive the plastic industry forward. The products you see today are engineered to ensure you get the best performance for your application with the features valued within your industry.


Economical single cavity hot runner systems.

Accu-Line FM

Economical single cavity hot runner systems (flush mount design).


Fully balanced in-line valve gating solution for IBS and ISBM machines.


The clear choice for automotive lenses.

Fusion-Series G2

Drop-in, connect and inject. Ideal for automotive and other medium to large molding applications.

LSR Cold Deck

Valve gated cold decks for precision Liquid Silicone Rubber (LSR) molding.


Proven performance and reliability for a wide range of applications across any industry.


Lighting fast, specialized cap & closure system.


The hot runner solution for molding with challenging thermally sensitive, abrasive or corrosive resins.


Specialized for high pressure thin wall packaging applications.


Configurable 1-8 drop standardized hot runners, delivering performance and value, fast.