Saving Money by Reducing Downtime
Machine downtime has been the bane of manufacturers for as long as there have been machines, but new technologies have emerged that make it easier to identify the causes of downtime, calculate its costs, and keep it to an absolute minimum.
Consumers today demand goods and services on time and to spec. The biggest players in every industry have set a tremendous bar that competitors must match, and one thing every market leader has in common is that they strive to get the most out of their resources by reducing machine downtime. A recent study by ServiceMax found that:
- 82% of companies have been impacted by at least one unplanned outage involving their machinery/assets over past three years
- Achieving zero unplanned downtime is the number one priority for the board at 20% of organizations, and a high priority for 50%.
- 70% of companies are now aware of when equipment assets are due for upgrade or maintenance
- The cost of downtime is staggeringly high – up to $260,000 per hour
Downtime by the numbers
Not all downtime is created equal, and not all downtime is a negative phenomenon. It’s necessary to differentiate, for example, between planned and unplanned downtime:
- Planned downtime is time specifically scheduled to address equipment performance, facility maintenance, tool breaks, inspections, hardware/software upgrades, facility maintenance, and other necessary tasks. Because planned downtime is anticipated, the time and money invested (as well as the productivity and labor losses) can be controlled.
- Unplanned downtime is any unforeseen event that reduces return on investment by causing disruptions in quality, cost, and cycle time. It’s typically thought of in terms of equipment failure due to poor maintenance, but human error and slow changeovers can also contribute to lost time and revenue.
When it comes to unplanned downtime, just being able to accurately calculate your downtime correctly can give you an advantage over your competition. The data suggests that 80% of industrial plants are unable to estimate downtime accurately. And the ones that can often under-calculate the downtimes by up to 300%.
While that may seem surprising, the 80% figure begins to make sense when you consider the difficulties of accurately calculating unplanned downtime. Doing so requires a heightened awareness of multiple aspects of your business, specifically:
- The hours of operation of the machine or machines in question
- The hours of downtime
- The average total number of units produced per week by each machine
- The gross profit per unit
Even having these numbers available and being able to plug them into an equation won’t tell you everything – your lost profit is just the tip of the iceberg. Chances are that fixing the issue that has brought a machine to a halt will require paying a specialist, and your true losses will always be driven by labor costs – idle workers still need to be paid, after all.
If you’re not yet convinced of the seriousness of unplanned downtime, here are some more statistics to consider:
Keeping downtime under control
There’s an adage that states, “An ounce of prevention is worth a pound of cure.” It’s never been truer than when it comes to minimizing the impact of unexpected downtime. The most effective way to prevent your valuable assets from malfunctioning or failing at the worst possible time is to develop what’s known as a preventive maintenance strategy. Preventive maintenance is a proactive maintenance strategy that involves regular and routine maintenance of equipment to reduce the likelihood of failure (and therefore the likelihood of unplanned downtime).
The basic principle is one of performing maintenance on critical machinery while it is still operational instead of waiting for problems to develop. Just as going to the dentist for a routine checkup every few months keeps you from having to replace your teeth, a preventive approach to equipment and machinery maintenance increases availability and operational output of through regularly scheduled cleaning, repairs, adjustments, and part replacements. It’s an approach that pays for itself and then some – running an asset to the point of failure can cost a business up to 10 times more in repairs and lost production.
There are 5 steps involved in setting a preventive maintenance schedule:
- Define the potential problem
- Measure current asset performance to establish a baseline
- Identify and explore possible causes of the problem
- Analyze the best approach
- Calculate how well your current approach has been working and adjust as needed
Fortunately for manufacturers, modern technology is on your side every step of the way, particularly the latest developments in the field of artificial intelligence (AI). When applied to preventive maintenance, AI can help detect potential problems, minimize unplanned downtime, and predict the remaining optimal life of systems and components.
Andea, the developer of the cloud-based Manufacturo platform, is getting ahead of the pack by offering eKnows, a cloud-based system that allows equipment operators to solve production line issues on their own, without involving maintenance specialists or other colleagues. It relies on knowledge gained during the machine learning process to guide employees through the troubleshooting process, using AI to track current issues with machinery, predict future issues, and provide relevant reports.
Think of eKnows as a perpetually expanding knowledge base that can analyze an infinite amount of maintenance data from engineers. Whenever your production line is about to face an issue that has already happened, eKnows will let anyone involved with the relevant systems know about it immediately, reducing unplanned or unexpected production downtimes and eliminating the need for intensive training, updated manuals, and knowledge transfer from maintenance engineers to shop floor operators.
eKnows will give facilities of all sizes greater access to predictive maintenance, making it easier for them to achieve the highest possible levels of operational excellence and equipment reliability.
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