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Design Considerations for In Press Maintenance

Design Considerations for In Press Maintenance

Updated On: 3/24/2026

Increased productivity and efficiency is a primary goal for almost any molding operation.  Performing in mold press maintenance is one way to achieve those goals.

Obviously, there are a myriad of factors and considerations regarding design setup and maintenance while the mold or tool is still in the production environment,  but in this recent article on ptonline.com, Randy focuses on three major categories:

  • Setup and design consideration
  • Cleaning, protection and maintenance
  • Repairs in the press

In Press Maintenance Habits That Reduce Wear and Extend Tool Life

Plastic injection molding press machine after press maintenance

Even with a well‑designed mold and a solid maintenance plan, the way a tool is handled during daily production has a major influence on long‑term performance. Small oversights during setup, startup, or routine adjustments can create conditions that lead to premature wear, alignment issues, or unnecessary downtime. Establishing consistent in‑press habits helps stabilize the process and protects the tool from avoidable damage.

Here are several operational practices that support smoother in‑press performance:

  • Confirm Alignment After Every Adjustment: Any time a slide, ejector, or hydraulic connection is touched, operators should verify that nothing shifted out of position. Minor misalignment can escalate into broken pins, damaged locks, or read‑through on parts.
  • Monitor for Subtle Cooling Imbalances: Uneven temperatures between mold halves or circuits often show up before defects appear. Watching for early signs helps catch cooling issues before they cause wear.
  • Standardize Startup Checks for Moving Components: A quick verification of ejector return, slide travel, and core movement at the start of each shift prevents surprises once the mold is under load.
  • Track Repeat Offenders: If the same area of the tool consistently shows wear, drag, or contamination, documenting those patterns helps identify whether the root cause is design‑related, process‑related, or setup‑related.
  • Use Setup Sheets as Living Documents: When operators record small adjustments or observations, those notes become valuable clues for future setups and help prevent repeated mistakes.

These habits bridge the gap between scheduled maintenance and real‑time mold behavior, helping teams maintain stability throughout the production cycle.

The author covers a lot of ground in this article, and provides some significant insight that is grounded in real word applications and experience.

You can read the full article here: TOOLING: Designing Molds for Easy Maintenance in the Press, Part 1

The Nanoplas family of products was engineered  for today’s challenging Injection Mold environment.  Our injection mold coatings and mold maintenance products can help your operation achieve it’s productivity and efficiency goals. Contact us today to learn more.