Single-Cavity Valve Gate

MDi offers customized solutions to fit any industry’s needs. Our Single-Cavity Valve Gate Systems are ideal for prototyping or low-volume requirements, as well as for applications where a minimum gate vestige is required.

All MDi Single-Cavity Valve Gate systems are built with MDi’s exclusive adjustable valve pin feature. MDi Valve Gate systems are built to be“maintenance friendly.” Valve pin adjustment and/or replacement is no longer a molders’ nightmare.

Product Features

  • Compact stack height
  • Wiring is internal and protected
  • Innovative valve and piston assembly
  • MDi Single-Cavity Valve Gate Systems are reliable, offering maximum uptime
  • Simple maintenance tools included with Single-Cavity Valve Gate System
  • MDi’s design will improve molders’ production times
  • Pre-assembled piston
  • Sub-assembly drops in and out for quick maintenance
  • Well-suited for extremely high temperature materials


Parts made by the use of a Valve Gate usually have the least frozen-in stress, without any sprue, and no visible defects. Valve Gates can yield consistent shot-to-shot repeatability, faster cycle times, good automatic mold operation and better part quality. Valve Gated molds are therefore, ideal for automated high volume production.

In addition to Single-Cavity Valve Gate systems, MDi also offers Valve Gate Stack systems with multiple drops. MDi’s Single-Cavity Valve Gates feature the same innovative gating technology used in our multi-cavity Hot Runners.

Hot Runner Systems made in U.S.A

MDi is a world-leading American manufacturer of Hot Runner systems and components with the capability to develop custom and innovative solutions for plastics Injection Molding. Established in 1984, MDi continues to offer experience in the design and manufacturing of complete, internally heated and balanced precision Hot Runner systems, Valve Gate systems, Sprue Bushings, Molding Machine nozzles, Filters, and MDi’s unique system products and controls. All of our components are in-house designed and manufactured in our facility at St. Charles, IL, with a focus on quality and reliability.