Oil and emulsion mist separators for machine tools
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What is an Oil and Emulsion Mist Separator?
An oil and emulsion mist separator is a powerful system for extracting mist, emulsion and other atomized contaminants. Microscopic droplets spread in the air during milling, turning or grinding. These are collected and filtered by the extraction system. The result: cleaner air, better working conditions and protection of both people and machines.
Modern installations, such as Kiekens, are energy-efficient, low-maintenance and available in mobile or stationary versions. They are tailored to the specific situation of each machine and production location.
Why is a mist separator necessary?
For industrial environments, an oil and emulsion mist separator is not a luxury, but a necessity. During CNC machining and other machining processes, the use of coolants and lubricants creates a dangerous mix of aerosols. This mist settles on surfaces, machines and lingers in the air — with all the associated health risks. A good mist separator prevents this.
The benefits at a glance:
- Better air quality: filters harmful oil, emulsion and aerosol particles.
- Employee health: reduces the risk of respiratory problems and long-term exposure.
- Longer lifespan of machines: prevents corrosion and contamination of electronics.
- More safety: less slippery due to oil deposits on floors.
- Sustainable: reduces emissions and contributes to environmentally friendly production.
Technical specifications of a good oil and emulsion mist separator
A powerful system connects seamlessly to modern machine tools. These technical features are essential:
- Airflow (air volume flow)
- Filter technology
- Sound pressure level
- Customizability and execution
- Safety and ease of maintenance
Airflow
The required air flow depends on machine size, processing intensity and amount of mist. It determines how much air is filtered per hour. For standard applications, a minimum of 500 m³/h is common. For larger CNC centers or central extractions, this can be up to 3,000 m³/h or more.
Filter technology
A high-quality mist separator works with a multi-stage filter system:
- Prefilter: captures coarser particles and chips.
- Coalescing filter: bundles fine oil particles into larger droplets.
- HEPA end filter (class H13/H14): removes up to 99.995% of the finest particles.
Important extras include: long filter life, (optional) compressed air cleaning and tool-free filter changes.
Sound pressure level
The noise level of a mist separator is preferably below 70 dB (A) — ideal for low-noise production environments.
Customizability & execution
Every installation is unique. Kiekens provides customized solutions with options such as flexible extraction arms, direct machine integration or customer-specific connections. This way, you always work efficiently and purposefully.
Safety and maintenance
In ATEX environments, explosion-proof design is essential. It is essential to comply with applicable laws and regulations, including CE marking and any country-specific guidelines.For maintenance, viewing windows, maintenance indicators and quick-change filters are desirable — this way you can easily keep the system in top condition.
Kiekens — Customized solutions that convince
Kiekens has been a specialist in industrial extraction systems for over 100 years. We develop oil and emulsion mist separators that seamlessly meet the needs of your process — whether it's a CNC machine, milling machine or complete machining center.
We offer solutions for:
- Single machines: compact units with direct connection.
- Central systems: for multiple machines at the same time.
- Mobile exhaust: for flexible deployment at changing locations.
Our systems are equipped with powerful HEPA filters (H13/H14), low energy consumption and user-friendly exchange systems. Includes expert advice, installation and service.
Mobile vs. central mist separators
The choice between mobile or central depends on the production process and location:
- Mobile units: compact, flexible, ready to use. Ideal for frequent process changes or temporary setups.
- Central systems: for large halls with multiple workstations. Powerful extraction up to 5,000 m³/h, easy to integrate on the ceiling or in the technical room.
Both types can be expanded with additional filter modules, odour filters or wet separation. Kiekens is happy to advise on the optimal solution for your situation.
Mist separation with Kiekens — For permanently clean air
With more than a century of experience, Kiekens provides high-quality, sustainable and efficient solutions — from mobile units to complex central installations. Our extraction systems provide clean air for a long time, optimal work comfort and a trouble-free production environment.
Improve your production environment today — request a free intake or free baseline measurement.
It filters microscopic oil and emulsion droplets from the air that occur during machining operations. This is how you protect employees and machines.
The air is drawn in and passed through multiple filter layers: coalescence, micro and HEPA filters. Clean air is then returned or removed to the outside.
These are usually coolants and lubricants based on mineral oil or water — these cause the emission of mist particles.
Multistage filter systems with HEPA, activated carbon and coalescing filters offer the highest separation and are suitable for industrial applications.
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