A packaging line that once ran at full speed now stops twice a shift. Rejects are creeping up and a capital request for a new filler is on the operations director’s desk. A newer, more efficient machine feels like the responsible choice. It may not be. Every new machine carries an environmental footprint created before it runs a single pack, so it is worth asking what repair or refurbishment could still deliver.
Key Takeaways
- A new machine carries a materials and carbon cost before it produces anything.
- UN research found that refurbishment and repair cut the need for new material by more than 80% in the sectors studied.
- Lines are often replaced early because of downtime pressure, lost skills and patchy records, not a failed frame.
- A simple repair, refurbish or replace test keeps the decision honest.
- When replacement is right, resell, trade in or strip the old machine for parts rather than scrapping it.
The Hidden Footprint of a New Machine
Fillers, cartoners and case packers are built from steel frames, servo motors, drives, sensors and control cabinets full of electronics. Making and shipping all of that has an embodied impact that rarely appears in a capex case, which tends to compare purchase price with the energy and labour savings of a newer model.
The UN International Resource Panel’s report Re-defining Value: The Manufacturing Revolution looked at automotive parts, heavy off-road machinery and industrial printing equipment. According to UNEP, comprehensive refurbishment reduced new material needs by 82 to 99%. Repair did better still, at 94 to 99%. Greenhouse gas emissions dropped by 79 to 99% in some of the sectors studied. Packaging machinery was not studied, so these percentages should not be presented as expected savings for a packaging-line project. They illustrate the potential of retaining products and components; each machine needs its own assessment.
The Circularity Gap Report 2025 reports that 6.9% of materials entering the global economy in 2021 were secondary materials, down 0.3 percentage points from 2018. This global measure provides context; it does not measure reuse on an individual packaging line.
Why Lines Get Replaced Too Early
A replacement decision can be driven by more than the condition of the frame. Downtime, missing expertise, incomplete records and unavailable parts can all influence the case for new equipment.
Downtime. Siemens’ True Cost of Downtime 2024 report puts the cost of a lost hour at $36,000 in fast-moving consumer goods, and reports an average of 27 hours of unplanned downtime a month across the large plants surveyed. These are survey-based estimates, not a forecast for every packaging facility. New equipment then looks like the quickest fix, even if the faults sit in a few worn components.
Skills. PMMI’s 2025 Inside the Workforce Gap research flags staff shortages and the loss of undocumented know-how on packaging plant floors. When the technician who understood a machine retires, it starts to look older than it is.
Records. Without a maintenance history, a one-off fault is hard to tell apart from steady decline. Heat is a common hidden cause of wear on motors, bearings and electronics, as Unsustainable Magazine’s piece on industrial heat management explains.
Obsolete parts. A discontinued PLC or drive makes a solid machine seem beyond saving, but a controls retrofit may be feasible. A qualified specialist should assess integration, safety functions, software support and the availability of suitable replacement components before recommending it.
Repair, Refurbish or Replace? A Practical Test
Households face a version of this choice with appliances, as Unsustainable Magazine’s guide on whether to repair or replace a broken washing machine shows. The logic on a factory line is similar, and the guide below is a starting point rather than a rule.
Worn parts, sound frame. Repair. Replacing change parts, belts or seals may be sufficient when an inspection confirms that the underlying machine remains safe and suitable. Cost and downtime depend on the fault and access to parts.
Obsolete controls. Refurbish or retrofit. If the frame is sound but the PLC, HMI or drives are obsolete, a properly designed retrofit may restore reliability and access to supported parts without replacing the main structure. That outcome needs to be confirmed through engineering assessment and testing.
Guarding below standard. Replace. If guarding falls short of current standards and cannot be retrofitted, operator safety comes first.
New pack format or material. Check tooling first. Different change parts sometimes let the existing machine run it, so replace only if they can’t.
High energy use. Compare both options. On a high-volume line using far more energy than modern equivalents, lifetime savings may outweigh the embodied impact.
Take a hypothetical food producer whose cartoner jams several times a shift. An audit finds the frame and main drive in good condition, but worn change parts and 20-year-old controls. Fixing both keeps the steel in service and the operators on equipment they know, potentially using less new material than a complete replacement. The actual saving would depend on the scope of the work.
What a Good Refurbishment Includes
A substantial refurbishment can go well beyond a service visit. Depending on the machine’s condition, its agreed scope may include a full strip-down and inspection, frame realignment, reconditioned or replaced wear parts, new wiring, updated controls and guarding assessed against applicable requirements. Commissioning trials, safety validation and appropriate operator training should form part of the handover.
For lines built around customized packaging formats, where tooling and change parts are dedicated to a single product, a technical service team can assess whether the existing tooling, frame and drives remain suitable for refurbishment. Tooling should be retained only when its condition and the intended pack specification allow it.
A good refurbishment also leaves behind updated drawings, a parts list and a maintenance plan, closing the record-keeping gap that pushed the line towards replacement.
When Replacement Is the Right Call
Repair-first is not repair-always. Replacement makes sense if guarding cannot be brought up to standard, a switch to mono-material or fibre-based packs needs a different machine or a modern model would sharply cut energy use on a line that runs around the clock.
Even then, the old machine has value. If it can be made safe and suitable for a defined use, it may be resold or traded in to a dealer that rebuilds equipment. Otherwise, assess usable parts and appropriate material recovery. Passing unsafe equipment to a smaller producer is not a responsible solution. Keeping machines running also keeps know-how in-house, and Unsustainable Magazine’s look at when local manufacturing makes a product more sustainable notes how hard skills are to rebuild once capacity goes.
The Most Sustainable Machine Is Often the One You Already Own
A capex request for new packaging equipment deserves the same scrutiny as any sustainability decision. First find out what is actually failing, how much of the machine is still sound and what refurbishment would mean in money, materials and downtime. Compare repair and replacement over the same expected production output and operating period, including energy, rejected packs, maintenance, transport and end-of-life impacts. Sometimes replacement wins; in other cases, the better option may already be on the factory floor.
Sources and further reading
UN International Resource Panel, Re-defining Value: The Manufacturing Revolution
Siemens, The True Cost of Downtime 2024
Circle Economy, Circularity Gap Report 2025