Mold-Masters offers a wide range of hot runners designed to cater to the specific needs and demands of the industries and markets we serve. We recognize the differences in each, and as such, have developed solutions to optimize the molding performance of your hot runner system no matter your application or choice of resin. With one of the largest R&D budgets in the industry, Mold-Masters has developed 5 unique hot runner series centered around delivering the highest molded part quality and improving operational efficiency by reducing scrap and energy consumption.


Master-Series hot runners represent our benchmark technology and can be found as part of many of the market specific solutions we offer. With over 1,500,000 nozzles in the field, Master-Series nozzles have been proven to deliver exceptional thermal precision and reliability resulting in high quality molding characteristics suitable for a wide range of resins and applications across any industry.

Master-Series Hot Runners Feature:

Our Widest Range of Shot Capacities

  • Capable of shot sizes from <1g to 3,500g.

Brazed Heater Technology

  • Excellent thermal profile (10% max variation*) for optimized processing window.
  • Smaller OD than heater bands minimizes cut out dimensions.
  • Reliability that often outlasts the life of the tool.
  • More info.

Widest Range of Gating Styles

  • 11 valve gated and thermal gating options.


*Based on internal lab test results