Polyester cartridge filters are essential for the performance of Erzinger powder coating booths.

With high retention efficiency, automatic regeneration by compressed air pulses, and long durability, they ensure a clean and safe environment on the painting line.

However, in some situations, our technical team identified a risky practice: washing the filters to try to extend their useful life.

Although it may seem like a momentary saving, this action generates hidden costs and serious risks to the security and performance of the system.

The risks of filter washing

Washing cartridge filters compromises the performance and reliability of the exhaust system. See the main impacts observed:

• Physical damage to filter elements;
• Loss of filtration and exhaust efficiency;
• Increased fire risk;
• Higher maintenance costs;
• More machine downtime.

In summary: what appears to be an economical solution can turn into a source of operational losses.

Original filter vs. washed filter

“Did you know that an original Erzinger filter can last up to 19 months of continuous operation?”

An original Erzinger filter has an average service life of between 3,000 and 4,000 hours, which is equivalent to approximately 14 to 19 months of use, provided that the recommended maintenance precautions are followed.

A washed filter significantly reduces performance and requires frequent stops for cleaning and drying, interrupting production and increasing indirect costs.

The true cost of washing

Each washing process involves more than just time and water.

Here are some of the costs that are often overlooked:

• Production line stopped;
• Overtime for the maintenance team;
• Need for spare filters;
• Washing and drying costs;
• Risk of operational failures after reuse.

When we add up all these factors, the cost of washing exceeds that of preventive replacement.

A real-life example

In a cabin with 15 filter elements, completely replacing the filters takes 6 to 8 hours of work, ensuring only one scheduled shutdown every 1.5 years.

With frequent washing, downtime increases and productivity drops, without guaranteeing the same efficiency.

Safety and work environment

In addition to the financial impact, there are also occupational health and safety risks. Washed filters lose efficiency, releasing particles into the air and compromising the quality of the manufacturing environment.

Therefore, maintaining proper filtration is essential to protect employees and ensure continuous line performance.

The Erzinger recommendation

At Erzinger, we advise that cartridge filters should not be washed. The use of original filters and preventive maintenance ensures:

• Longer equipment service life;
• Less downtime;
• Greater efficiency and operational safety;
• Superior air quality in the painting environment.

Do you need technical support?

Please contact Erzinger Technical Support.

• Phone: +55 (47) 3801-9199
• WhatsApp: +55 (47) 99159-6358
• Email: at@erzinger.com.br

Our experts are ready to assist with performance analysis, correct filter replacement, and preventive maintenance planning.