Extraction systems for the metal industry
What are extraction systems in the metal industry?
Extraction systems in the metal industry filter harmful substances such as metal dust, chips and welding fumes from the air. They are used in all areas where metal is processed: at welding workstations, CNC machines and sanding or polishing stations. An extraction system usually consists of extractor hoods, piping systems, filters, fans and a control system. They are robust, often equipped with spark arresters and — depending on the type — suitable for explosive substances and ATEX certified. This keeps the work environment clean and safe.
Why are extraction systems essential in metalworking?
Extraction systems protect employees and the workplace. By limiting exposure to hazardous metal dust and welding fumes, they contribute to compliance with occupational safety legislation and prevent hazardous substances from accumulating. At the same time, they improve product quality by minimizing contaminants during the production process. They also protect machines against dust accumulation, which extends their lifespan and reduces maintenance costs. In addition, they reduce the risk of fire by directly capturing flammable metal dust. They also contribute to environmental protection by filtering harmful emissions and recovering valuable metal particles. In short: indispensable in a modern metalworking environment.
Benefits of extraction systems for the metal industry
- health: reduces exposure to particulate matter, welding fumes and harmful substances
- Compliance: helps comply with air quality laws and regulations
- Product quality: minimizes contamination, increases precision
- Machine protection: prevents dust accumulation, extends life, reduces maintenance
- Fire safety: reduces risks due to flammable dust
- Efficiency: improves vision and increases productivity
- Environment: reduces harmful emissions
- Recovery: allows the recycling of metal particles
What is metal dust and how dangerous is it
Metallic dust consists of extremely fine particles — often micro or nanoparticles — that are created when processing metals such as iron, aluminum, chromium or nickel. These dust particles are particularly harmful to health. Long-term exposure can lead to lung dust, asthma, or allergies, and some metals increase the risk of cancer. In addition, metal dust irritates the skin and eyes and can affect organs during prolonged contact. And: metal dust is explosive — this is a serious safety risk in industrial environments. The environment also suffers from metal dust, which pollutes soil and water. Effective extraction is therefore crucial — for people, machines and the environment.
Types of extraction systems for the metal industry
Depending on the application, various solutions are available:
- Mobile exhaust: can be used flexibly at changing workplaces - ideal for sanding or drilling
- Stationary systems: for larger production facilities that require constant, powerful extraction
- Industrial vacuums & suction hoses: for targeted extraction of dust and particles directly at the source
Our solutions for extraction in the metal industry
At Kiekens, we know: the right extraction system makes the difference. That is why we provide modular systems that perfectly meet the requirements of metal processing. Whether you need simple dust extraction or an advanced ATEX-certified solution — we provide customized solutions. Our systems can be combined with various extraction units and dust removal options, equipped with smart monitoring via integrated pressure gauges. High-quality, sustainable and traditionally developed and produced in the Netherlands.
How powerful does an extraction system need to be?
That depends on the type of operation. Welding usually requires 700—1000 m³/h per workplace, sanding processes 1000—2000 m³/h, and CNC operations between 500—5000 m³/h. Finer dust particles require higher air speeds, heavier particles require more suction power. The larger the room or the more extraction points, the higher the required capacity.
Extracting metal dust when sanding
Abrasion is one of the biggest causes of metal dust. Modern extraction systems capture this dust at source via extraction arms or covers. Cyclone separators and filter systems ensure efficient filtration. The required extraction capacity is usually between 1000—2000 m³/h per workplace. With good systems, up to 99% of sanding dust can be captured.
Kiekens extraction systems
Kiekens' extraction systems are designed for maximum reliability and efficiency. With more than 100 years of experience, we combine technical expertise with flexible solutions. The result: a clean, safe and healthy work environment — day in, day out. Interested? Contact us for tailored advice.
For industrial workplaces, the limit is 85 dB (A) for an 8-hour working day. For office environments, that is 55 dB (A). Modern systems often operate between 65—75 dB (A). If it is exceeded, additional noise reduction measures are required.
The installation captures contaminants at source via extraction arms or covers. A fan creates negative pressure, so that the air is drawn in via pipes. Coarser particles are pre-separated (e.g. via cyclones), after which the air is cleaned via multiple filter layers. The clean air is then brought back into the room or removed outside.
Pay attention to sufficient extraction capacity, direct source extraction, the right filter system and energy efficiency. The installation must comply with safety and environmental standards. Easy maintenance, low noise production and ease of use are also important.
