Author: Rich Taube, Plastics Machinery Group Manager

In the world of plastics manufacturing, your machinery is the heartbeat of your business. But like any hard-working asset, even the most robust machines eventually show their age. When performance dips, maintenance costs climb, or precision starts to waver, manufacturers find themselves at a critical crossroads: Should we invest in a new machine, or is there a way to breathe new life into what we already have?

This isn’t a decision just about price; it’s a strategic choice that impacts your capital expenditure (CapEx), operational efficiency, and long-term sustainability. So, how do you decide? Following are several factors to take into consideration when determining the appropriate next steps for your plastics machinery.

Assessing the “50% Rule” and Total Cost of Ownership

A common rule of thumb in industrial maintenance is that if a repair costs more than 50% of the price of a new machine, replacement should be considered. However, the calculation isn’t always that simple. You must also consider the Total Cost of Ownership (TCO).

  • New Equipment: Includes the purchase price, shipping, installation, and the cost of training employees to operate it.
  • Repair/Retrofit: Focuses on restoring the machine to its original (or better) specifications. It often costs significantly less than a new unit and requires minimal staff retraining because the physical footprint and basic operation remain unchanged.

Technology Without the Big Price Tag

Often, the mechanical “iron” of a plastics machine (e.g., base, frame, platens, etc.) remain in good condition, but the “brains” (e.g., hydraulics and control systems) are obsolete. This is where a retrofit offers a massive advantage.

By upgrading to modern PLC controls, energy-efficient motors, or advanced hydraulic valves, you can achieve:

  • Improved Cycle Times: Modern controls process data faster and more accurately.
  • Energy Savings: Newer systems are often much more efficient, reducing your monthly utility overhead.
  • Data Integration: Retrofitting allows you to bring older machines into the “Smart Factory” era, enabling better data tracking and quality monitoring.

Understanding the varying needs and available resources of its customers, and taking machine model into consideration, the QSI Automation team offers two control platforms in retrofit situations:

Lead Times and Production Continuity

In today’s volatile supply chain, ordering a new injection molding machine could mean waiting months for delivery, and then additional time for set up and training. For a manufacturer with immediate production demands, that wait time is a hidden cost.

Repairing or remanufacturing existing equipment typically happens on a much tighter timeline. Because the frame and major components are already on your floor, or can be quickly shipped to a partner’s facility, you can often get back to full production capacity much faster than waiting for a new machine to clear customs and shipping. The QSI team can typically complete a control retrofit in 2-3 weeks, and in some cases, a complete rebuild can be done in 8 weeks. 

Embracing the Circular Economy

Sustainability is no longer just a buzzword; it is a core business strategy. Traditionally, manufacturing followed a linear model: “Take” (extract materials), “Make” (build a machine), and “Dispose” (scrap it when it wears out). The circular economy replaces this with a model focused on keeping resources in use for as long as possible.

Repairing and remanufacturing plastics machinery is a prime example of this “industrial reuse” in action. It offers several key environmental advantages:

  • Resource Conservation: Remanufacturing saves up to 80% of the energy and raw materials required to build a brand-new machine.
  • Reduced Carbon Footprint: By avoiding the massive energy costs associated with smelting new steel and global shipping, you significantly lower the carbon impact of your facility.
  • Waste Mitigation: Instead of adding tons of steel to a landfill or an energy-intensive recycling plant, you are extending the life of a proven asset.

Choosing to remanufacture doesn’t just save money; it aligns your facility with global sustainability standards, a benefit that is increasingly important to both your stakeholders and your customers.

Finding the Right Balance

The “Repair vs. Replace” debate doesn’t have a one-size-fits-all answer. If your current machine is fundamentally undersized for your future needs or is mechanically compromised beyond repair, a new investment is likely the best move. However, for many manufacturers, the most strategic path is to leverage the “good bones” of their existing machines and upgrade them to modern standards. This is especially true if the machine was originally custom built, often making the “replace” option too expensive.

At QSI Automation, we specialize in helping manufacturers navigate this dilemma through our Plastics Machinery Group. We understand that a machine is an investment in your company’s future, which is why we offer comprehensive services to remanufacture, recondition, and retrofit vertical injection molding machinery.

Whether we perform a custom build or a high-tech control retrofit, our goal is to provide a solution that maximizes your ROI. We don’t just fix machines; we restore your competitive edge using the principles of Quality, Service, and Integrity that define everything we do.

 

Author Bio:

Rich has been with QSI Automation since 2002 and has extensive knowledge in hydraulics, electrical, and control systems. He has held a variety of positions, including Service Technician, Training Coordinator, Service Supervisor, Manager of Contract Services, Engineering Manager, and Operations Manager. His more than 28 years of experience with vertical injection molding machines has equipped him with knowledge in the areas of manufacturing, programming, service, retrofitting, rebuilding, safety training, new product development, and designing standard and custom machines.