Ventilation solutions for the METAL industry
Clean air and efficient operation in the metal industry
Remove welding fumes, oil mist, and grinding dust effectively with Technor's specialized extraction solutions.
Effective extraction is essential in the metal industry. Welding fumes, grinding dust, and oil mist are harmful to both health and production. Technor delivers robust, tailor-made systems for all metalworking processes that ensure compliance, protect employees, and minimize energy consumption. We design the solution to meet your exact needs, whether you work with steel, stainless steel, or aluminum.

Health and Safety – Protect employees from hazardous particles
Welding fumes and grinding dust often contain heavy metals and carcinogenic substances (e.g., hexavalent chromium from stainless steel). Oil mist from CNC machines can settle as a slippery film on floors and penetrate electronics.
- Effective source extraction: We remove pollution exactly where it originates – whether via spot extraction, extraction arms, or machine enclosure.
- Clean air in the hall: Using general ventilation and push-pull systems, we ensure that the background concentration of dust and fumes is kept to an absolute minimum.
- ATEX safety: When processing reactive metals like aluminum or magnesium, we design the system with full
ATEX protection to prevent dust explosions.

Operational reliability and product quality
A poor indoor climate affects not only people but also machines and products. Oil mist can short-circuit control systems, and dust can settle on workpieces before coating/lacquering.
- Equipment protection: By effectively filtering the air, you extend the lifespan of your machinery and reduce the need for maintenance and cleaning.
- Constant suction power: Our systems are dimensioned to deliver stable negative pressure, even as filters fill up, ensuring consistent production quality.
- Reliable technology: We use proven components that can withstand the harsh environment of the metal industry – from spark arrestors to self-cleaning filter cartridges.
Strong solutions for heavy industry
We have delivered extraction solutions to some of the country's leading metal companies. Here are three examples of how we solved challenges with dust and fumes:
Global Castings

In connection with the grinding of large metal components, Global Castings faced a challenge: Fine grinding dust was spreading throughout the building, damaging both health and the environment.
Hydrema A/S

As a manufacturer of large earthmoving machinery, Hydrema has extensive production involving both welding and machining. The challenge was to ensure effective removal of welding fumes across large workpieces and varying workstations.
Vald. Birn A/S

At Vald. Birn, one of Northern Europe's largest foundry groups, the processes place extreme demands on equipment durability. Sand, dust, and high temperatures are everyday conditions.

Energy optimization – Reuse heat and save money
Extraction of warm process air is often one of the biggest energy consumers in the metal industry. Technor helps you turn this loss into a gain.
- Heat recovery: Via efficient heat exchangers or recirculation (where legislation allows), heat from production can be reused to heat the factory hall.
- Demand control: Frequency-controlled fans (VFDs) and automatic dampers ensure the system only runs at the necessary capacity. If a welding booth is empty, suction shuts down automatically.
What solution do you need?
We cover the entire spectrum of the metal industry:
- Welding Workshops: Spot extraction, extraction arms, and mobile filters for flexible production.
- CNC & Machine Shops: Oil mist filters and central systems for chips and coolants.
- Foundries & Heavy Industry: Heavy-duty systems for sand, grinding dust, and thermal cutting.
Interested in collaborating? Contact us to learn more
If one or more of our ventilation solutions sound interesting to you, please contact us for a free, no-obligation chat about how we can solve your ventilation and extraction challenges. We have been doing this for the past 35 years, so we have the experience to take care of your needs.
Contact us by phone at 96682200, email technor@technor.dk, or use the contact form below - we will call you back as soon as possible.


