Introduction

Welding produces harmful fumes that can cause serious health issues for welders if not properly extracted and filtered. This highlights the importance of using high-quality weld fume extraction systems in welding shops and fabrication facilities across the United Kingdom. In this blog post, we will discuss the key things you need to know about weld fume extractors available in the UK.

Types of Extractors

There are largely two main types of weld fume extractors used in the UK - portable extractors and centralized extraction systems.

Portable systems are compact extractors with built-in filters that can capture fumes at source. They use a sucking mechanism powered by electric motors or pneumatic power to pull in fumes. Portable units provide flexibility to attach directly to welding guns or helmets. Leading brands like PlymoVent, Filcar, and Eurovac offer durable portable models suitable for most welding applications in the UK.

Centralized extractors have a collecting hood, ducting, air cleaner, and a fan. They collect fumes from multiple welding areas into a central unit with higher filtration efficiency. However, they require careful installation and occupy more space. Brands like Airtech, Abicor Binzel and Kemper supply centralized extraction systems across Britain.

Filtration Efficiency

Filtering efficiency is the most important specification to consider when choosing a welding fume extractor for your facility. Standard mechanical filtration removes only up to 80% of microscopic particulates. Opt for systems with 99% or higher filtration capability for the finest dust and gases like Ozone.

Advanced extractors use a combination of electrostatic precipitators, activated carbon, and HEPA technology to filter ultrafine particles down to 0.1microns. Always check the Clean Air Act compliance certification before purchasing an industrial extractor.

Extraction at Source

Extracting fumes right at the welding point is crucial for operator safety. Portable extractors with flexible arms and hoods capture maximum fumes before dispersion into the general workspace air. Centralized systems are more suitable for multiple weld stations.

Proper installation is vital for extracting efficiently from the arc or torch area. Ducting should have smooth interior surfaces for optimal airflow. Regular duct cleaning also prevents buildup of metal dust affecting suction capacity over time.

Ideal Extraction Rate

The rate of extraction determines how effectively fumes are captured and filtered. Optimal extraction rate depends on factors like welding process, materials, and workspace size. For manual metal arc welding, an extraction rate between 0.5 to 1 meter cubed per minute is ideal per welder. Advanced MIG, TIG and robotic welding require higher rates exceeding 1.5m3/min.

Always account for the number of welders working simultaneously when determining the required extraction rate for centralized systems. Insufficient extraction allows harmful fumes to reach worker breathing zone.

Monitoring Systems

Modern fume extractors feature monitoring systems to alert users on filter saturation, airflow changes or system faults. Digital displays indicate current extraction rate for real-time monitoring. Advanced units use IoT connectivity for remote monitoring and predictive filter replacement.

Automatic controls with smoke sensors adjust extraction speed based on fume levels inside the workspace. Such smart functions optimize energy efficiency and reduce operating costs.

Maintenance

Regular maintenance is essential for peak performance, safety and durability of welding fume extractors. Replace clogged filtration media like dry filters as per the manufacturer’s schedule to maintain required extraction rates. Clean prefilters weekly in high-usage extractors.

Annual professional servicing of the blower motor, fan, ducting and other components also prevents avoidable wear and tear. Proper maintenance gives extractors the best ROI by extending service life.

Conclusion

Protecting worker health should be the number one priority when setting up welding stations in UK fabrication shops or construction sites. Investing in certified local or European-made fume extractors sporting the latest filtration technology and safety features helps minimize exposure to dangerous welding emissions. Leading British extraction brands offer suitable models for both small businesses as well as industrial-scale applications.