How Will a Magnetic Filter Save Money?

Clean CNC machine fluid is critical for maintaining performance and controlling costs. When coolant becomes contaminated with metal or microbial bacteria, its effectiveness drops, leading to hidden issues such as tool edge micro-chipping, poor surface finishes, clogged nozzles, and accelerated machine wear. Bacterial growth can also create health risks to employees. Left unchecked, these problems result in premature tool failure, increased downtime, and higher consumable usage—making fluid cleanliness essential for efficiency and reliability. Adding a magnetic filter to your CNC machine extends the life of the fluid, improves product quality and reduces your carbon footprint. 

Cost Saving Benefits of a Magnetic Filter 

Magnetic filters enable automotive, machine tooling and steel processing industries to save money on purchasing consumable filters for CNC machines due to their ability to be cleaned and reused. Furthermore, magnetic coolant filters can extract fine ferrous and paramagnetic particles that can damage machinery and reduce the quality of the fluid, extending the lifespan of the machinery and coolant. 

Using magnetic filters reduces machine wear and tear caused by magnetic metal particles being missed by a traditional barrier filter, as they extract almost 100% of ferrous particles from the coolant fluid. 

Cleaner fluids reduce abrasive wear on cutting tools and grinding wheels, significantly increasing their longevity while lowering maintenance costs and minimising downtime from frequent tool replacements. Reducing unplanned downtime has a positive effect on productivity and efficiency.  

In contrast to barrier media filters with fixed pore sizes that can clog, magnetic filtration captures contaminants of all sizes, eliminating the risk of filter blinding and ensuring consistent performance. Unlike mesh or fibre filters that clog and restrict flow, magnetic filters maintain consistent flow rates, minimising pressure drops and ensuring systems operate at peak performance. This also means fewer system checks, lower energy costs, and reduced stress on pumps. 

Eclipse Magnetics’ filters are designed to be cleaned quickly and easily to reduce production stoppages and additional labour costs. We also have a rage of automatic filters with a self-cleaning ability to further decrease machine downtime. 

Typically, barrier and media filters demand frequent replacements, and centrifugal systems drive up energy and maintenance costs, whereas magnetic filtration delivers a smarter solution with no additional costs throughout the lifetime of the filter. Magnetic filters also offer a rapid return on investment by continuously removing ferrous contaminants without consumables, cutting operating costs and boosting the reliability of your machining processes.   

How Magnetic Filtration Improves Sustainability 

Removing or reducing the need to use disposable filters such as cartridges and bags means CNC machining industries will produce less waste. This has a positive impact on the business’ sustainability goals. 

The ferrous waste collected by the magnetic filter system can also be recycled, eliminating the need for costly disposal services that are usually required for the hazardous waste collected by traditional media filters. 

Introducing magnetic coolant filters to your production line also improves the surface finish of your products and therefore reduces the likelihood of product defects and quality control issues which are costly. 

Magnetic filters also help to improve energy efficiency as the reduction in machine wear and tear leads to lower energy consumption, operational costs and a smaller environmental footprint. 

Magnetic filtration systems help business’ achieve ISO 14001 certification by reducing waste and conserving resources. Unlike traditional filters, they eliminate disposable media and recover nearly all fluid, cutting environmental impact and lowering costs. With improved efficiency and sustainability, magnetic filters help your business meet environmental standards whilst boosting operational performance. 

Reduce Your Fluid Waste 

The nature of magnetic industrial filters means that the coolant fluid in CNC machines is much cleaner than when using media filters because the strong Rare Earth magnets are able to attract particles smaller than 1 micron. This method of cleaning the coolant, oil or lubricant reduces the amount of fluid lost to the filtration process. 

The fluid lifespan is also extended as contaminants that encourage bacterial growth and fluid degradation are removed by the magnetic filter system. This helps cut costs on purchasing and disposing of large volumes of fluid and promotes environmental sustainability by reducing waste generation. 

Traditional media filters often lead to significant fluid loss during disposal. Magnetic filters, however, separate contamination as a semi-dry cake, allowing nearly all residual fluid to be recovered. 

Other fine particle filtration methods using media can strip fluids of essential properties like anti-foaming and anti-bacterial agents. Magnetic filters, however, achieve sub-micron filtration without altering these characteristics, helping extend fluid life and reduce replacement cycles. 

Maintaining clean coolant ensures process stability, which is vital in CNC machining where precision, tight tolerances, and repeatability are non-negotiable. 

Learn how the UK's leading PVD coating operation reduces fluid wastage with Filtramag+ 

Why Choose Eclipse Magnetics? 

Eclipse Magnetics offers a smarter, cost-effective, and sustainable solution for CNC fluid management. Our magnetic filters deliver continuous, high-performance filtration without consumable parts, eliminating the need for frequent media replacements and disposal. By removing almost 100% of ferrous contaminants including submicron particles, our systems protect your machinery, extend coolant life, and maintain precision in tight-tolerance machining. This means lower operating costs, fewer tool changes, and reduced downtime, all while supporting ISO 14001 environmental goals. With easy-clean designs and optional auto-cleaning technology, Eclipse Magnetics ensures maximum efficiency, rapid ROI, and improved reliability for your production processes. 

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