Injection Molding Nozzle Leak Detection: 8 Best Practices

May 17, 2022

By this point, you probably know that AIRTECT leak alarm systems will detect your nozzle and hot runner leaks early when attached to your multi-zone water manifolds. Doing so results in the following benefits:

  • Safer operation
  • Nozzle and barrel protection
  • Reduced maintenance spending
  • Reduced downtime
  • Peace of mind for unattended machines

Best Practices

How can you ensure that you achieve these benefits? Below are eight best practices when installing AIRTECT leak alarm systems:

  1. The DC power source must be interference free: avoid electromagnetic interference (EMI) from solenoids, servomotors, etc.
  2. Ensure the internal interlock relay contacts need to have a capacity to switch loads of 24V DC at a maximum current of 0.5A
  3. Run the wiring and plastic tubing within the machine enclosure where possible for neat workmanship and to avoid problems
  4. Cut both ends of all sensor tubes neatly to provide a clear inner sensor tube diameter of 0.8mm (for 1.6mm tube) and 1mm (for 2mm tube)
  5. When using expansion manifolds (LA504, LA508 etc), ensure the LA500 or LM2050 has been programmed to accept the manifold/s and that it/they are connected to, otherwise a communication alarm will be displayed and vice-versa if the LA500 or LM2050 has not been programmed and a manifold is connected
  6. Switch electrical power on only after the sensor tube installation is complete and the air supply is energized to allow the “self-teaching” function to work
  7. When using modular systems, mount the manifolds on the base before applying electrical power as all mold leak sensor installations are somewhat different
  8. Work with an experienced partner to ensure all of the above

Injection Molding Nozzle Leak Detection

Get Started Today

Whether you have new molds, problematic existing ones, or need to manage many changeovers, the AIRTECT leak alarm system helps you maintain online production without costly leaks. Contact us and we’ll work closely with you to determine the right size and setup of the AIRTECT to meet your needs.

Contact us to learn more about preventing leaks with AIRTECT

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