Automation is one of the most significant investments a manufacturer can make. But unlike a machine that breaks down overnight, automation obsolescence tends to creep in slowly, quietly eroding efficiency, increasing costs, and creating risk before most teams even realise there’s a problem.
The challenge is that “obsolescence” isn’t a single event. It takes many different forms, and each one demands a different response. Understanding the full picture is the first step toward managing it proactively.
Here are the seven types of automation obsolescence every manufacturer should know about.
- Technological Obsolescence
- Functional Obsolescence
- Economic Obsolescence
- Software and Control System Obsolescence
- Vendor and Support Obsolescence
- Regulatory and Compliance Obsolescence
- Integration Obsolescence
1. Technological Obsolescence
What it is: Technological obsolescence occurs when newer, more capable equipment supersedes what you currently have. Your systems still work; they just can’t keep pace with what’s now available on the market.
A classic example is traditional industrial robots versus today’s collaborative robots (cobots). A fixed robotic arm installed a decade ago may still complete its task reliably, but it can’t be easily redeployed, requires safety caging, and lacks the precision or flexibility of its modern equivalents.
Signs you’re affected:
– Competitors are achieving faster cycle times or higher precision than you can match
– New product designs require capabilities your equipment doesn’t have
– You’re adding manual workarounds to compensate for system limitations
What to do about it: Conduct a technology benchmarking review every two to three years. Compare your current equipment against what’s available and calculate whether the performance gap justifies an upgrade.
2. Functional Obsolescence
What it is: Functional obsolescence happens when your automation can no longer perform what your operation needs, not because it’s broken, but because your requirements have changed around it.
This is common when manufacturers expand their product range, shift to smaller batch sizes, or move toward mass customisation. A system designed to run one product at high volume is often poorly suited to a flexible, multi-SKU environment.
Signs you’re affected:
– Changeover times are long and costly
– Certain product lines or variants must be handled manually
– Your automation is a bottleneck rather than an enabler
What to do about it: Map your current production requirements against your system’s designed specifications. Where the gap is significant, explore whether retrofit options exist or whether replacement is the more cost-effective path.
3. Economic Obsolescence
What it is: Economic obsolescence is the tipping point at which the total cost of keeping an existing system running exceeds the cost of replacing it. The equipment may be functional, but it’s become financially uncompetitive.
This is driven by rising maintenance costs, increasing downtime, energy inefficiency, and the growing difficulty of sourcing replacement parts. Many manufacturers underestimate this because costs accumulate incrementally; it rarely feels dramatic until you look at the annual total.
How to calculate the crossover point: Add up your annual maintenance spend, downtime costs (lost production hours/margin per hour), energy costs above a modern equivalent, and any premium paid for scarce spare parts. Compare this against the annualised cost of replacement (purchase price, expected lifespan, plus installation and transition costs). When the first number approaches or exceeds the second, the economic case for replacement is strong.
What to do about it: Build a simple total cost of ownership (TCO) model for your critical assets and review it annually. Don’t wait for a major breakdown to make the case for investment.
4. Software and Control System Obsolescence
What it is: Much of modern manufacturing automation runs on software; PLCs, SCADA systems, HMIs, and the operating systems that underpin them. When vendors end support for these platforms, the entire system becomes vulnerable.
This is arguably the fastest-growing category of obsolescence in manufacturing today. A significant number of production environments still run on Windows XP or Windows 7-era control systems that no longer receive security patches. Others rely on PLCs whose firmware hasn’t been updated in years and for which the original vendor no longer provides support.
Signs you’re affected:
– Your control system OS has reached end-of-life
– Software updates are no longer available from the vendor
– You can no longer find engineers who know the platform
– Cybersecurity vulnerabilities are going unpatched
What to do about it: Audit your software stack and flag every component that is end-of-life or approaching it. Prioritise systems connected to your broader network or the internet, as these carry the highest cybersecurity risk. Budget for control system upgrades as a distinct line item, not as part of general maintenance.
5. Vendor and Support Obsolescence
What it is: Vendor obsolescence occurs when the manufacturer of your equipment discontinues the product line, stops producing spare parts, or ceases to exist entirely. Even if your machinery is in good working order, you’re now operating without a safety net.
This is a more common problem than many realise. Industries consolidate, smaller automation suppliers are acquired or wound down, and niche product lines get discontinued when they’re no longer commercially viable for the manufacturer, regardless of how many customers are still running them.
Signs you’re affected:
– Lead times for spare parts are increasing significantly
– You’re holding larger stocks of spares because supply is unreliable
– Your vendor has been acquired, and product support has been deprioritised
– The original supplier has gone out of business
What to do about it: Maintain a supplier risk register for your critical automation components. When a vendor announces a product discontinuation, act quickly; buy sufficient spares to cover your expected remaining service life, or begin planning for replacement. Identify third-party maintenance providers who specialise in legacy equipment for your platform.
6. Regulatory and Compliance Obsolescence
What it is: Regulatory obsolescence occurs when changes to safety standards, cybersecurity legislation, environmental legislation, or industry certifications mean your existing equipment is no longer compliant, even if it operates exactly as designed.
This can be driven by updated machinery safety directives, new emissions or energy efficiency requirements, changes to food safety or pharmaceutical regulations, or evolving industry standards in sectors like automotive or aerospace. Non-compliance carries significant risk: production shutdowns, fines, insurance implications, and reputational damage. The Cyber Resilience Act mandates strict cybersecurity rules across a product’s entire lifecycle, make sure you’re buying equipment from a compliant manufacturer.
Signs you’re affected:
– A regulatory review or audit has flagged your equipment
– New legislation has been announced that will affect your sector
– Your equipment pre-dates a significant update to the relevant safety standard
– Your insurer or a major customer has raised compliance concerns
What to do about it: Assign clear ownership for regulatory monitoring within your engineering or compliance team. Subscribe to updates from the relevant regulatory bodies and industry associations. When new requirements are announced, assess your exposure early, retrofitting to meet new standards is almost always cheaper than an emergency replacement programme.
7. Integration Obsolescence
What it is: Integration obsolescence happens when your automation systems can no longer communicate effectively with the rest of your operational technology stack. As factories become more connected through IoT sensors, MES platforms, ERP systems, and cloud analytics, equipment that can’t participate in that ecosystem becomes an isolated island.
In the context of Industry 4.0, this is an increasingly significant competitive disadvantage. Real-time production data, predictive maintenance, and end-to-end traceability all depend on systems that can share information. Legacy equipment with proprietary protocols or no digital connectivity prevents manufacturers from unlocking these capabilities.
Signs you’re affected:
– Data from your automation must be manually entered into other systems
– You can’t access real-time performance data from the equipment
– Integration projects have excluded certain machines because connectivity isn’t possible
– You’re unable to implement predictive maintenance because the equipment doesn’t surface condition data
What to do about it: Assess your automation estate against your digital roadmap. For equipment that is otherwise sound, explore whether retrofit connectivity solutions (edge devices, protocol converters) can bridge the gap cost-effectively. For equipment approaching end-of-life on other dimensions, factor integration capability into your replacement specification from the outset.
Conclusion: The Case for a Proactive Obsolescence Audit
Most manufacturers face several of these challenges simultaneously, often without a clear picture of which assets are most at risk and on what timeline. A reactive approach, waiting for failures or crises to force decisions, is almost always more expensive and disruptive than a planned programme.
A systematic review of your automation estate across all seven dimensions, resulting in a risk-rated asset register and a prioritised investment roadmap, is the best starting place.
This doesn’t need to be a large project. Even a basic review, mapping your critical assets against each type of obsolescence and rating the severity, gives you the visibility to make better decisions and build a more credible case for capital investment.
If you’d like a framework for running that audit or want to discuss how these issues apply to your operations, get in touch with our team at support@parmley-graham.co.uk or call 0191 478 0400.