Welding Fume Extraction

Welding Fume Extraction & Portable Fume Extraction

Have you considered the danger of fumes in your workplace? We offer a complete solution of removal in every environment with our comprehensive range.

We provide specialist equipment for each process, from dealing with torch extraction and portable units for mobile welding applications to offering a complete installation package for multi-user fume exhaust systems.

Our products are CE approved and manufactured in Europe to the latest European standards and are second to none in build quality and reliability.

We offer the full technical support that you require to deal with any welding fumes, call us free to discuss your requirements on 0800 975 9710.

Welding Fume Extraction HSE Regulations

Organisations who are found not in compliance with the HSE enforcement expectations of protecting workers health can expect to be given an improvement notice, enforcement order or fine. There is no leniency regarding this matter as businesses are expected to have already tackled this problem. A fabrication firm was fined £12,000 plus costs for failing to comply with HSE regulations. To read the full article, click here.

FAQs

Why do I need a welding fume extractor and are welding fumes toxic?

The fumes and smoke generated during the process contain hazardous metal particulate and this must be taken care of to ensure the welders's safety. Ventilation is key as the particulate can settle (having previously been in the air) on the work area, clothing and electronics creating additional work and health and safety issues.

3 steps to welding fume extraction

  • Avoid or reduce exposure
  • Use local exhaust ventilation (LEV) to remove the fume away from the source
  • Use suitable respiratory protective equipment (RPE) to protect workers from inhaling fumes.

Why effective welding fume extraction is vital

Exposure can be deadly. Potential illnesses include occupational asthma, pneumonia, cancer, chronic obstructive pulmonary disease (COPD) and ‘metal fume fever’ which are all linked and widely found in facilities where welding and cutting take place.

How do you control welding fumes?

  • Use alternative cold joining techniques
  • Weld in ways that produce less fumes
  • Local exhaust ventilation (LEV)
  • Use respiratory protective equipment (RPE) and personal protective equipment (PPE)
  • maintain control measures and general ventilation
  • make sure welders understand the risks and how to use controls

When should LEV (Local Exhaust Ventilation) be used according to the HSE?

  • Moderate to high volume MIG/MAG production welding, small or medium-sized parts, welding on a bench; or in a screened off area. Welding on carbon mild steels and aluminium;
  • High volume production welding using TIG on stainless steels or aluminium;
  • Welding of stainless steels for stick welding, using MIG, MAG, Flux cored or MMA;
  • Arc air gouging;
  • Welding or hot cutting galvanised materials (e.g. zinc plated);
  • Welding or hot cutting materials containing cadmium, painted with lead or chromate paints
  • Automated cutting of flame or plasma requires LEV extraction, but this is usually built-in
  • Automated multi-head resistance welding machines.

What to think about when buying a welding fume extractor?

  • Ensure the capacity of the unit is powerful enough. For example, an operating flow rate of 1480 M3/hr is more than adequate to remove at source.
  • Ensure the filter is adequate. Many manufacturers use less efficient filters to minimise cost. An advanced E12 Hepa filter removes 99.5%.
  • Avoid MDF Hepa filters. Many well known brands are surprisingly still using these out-dated Hepa filters. This is because they are cheap to manufacture. However, their tendency to burn very easily has caused serious safety issues in the workplace.
  • Check the cost of replacement filters. Low priced extractors usually have over-priced replacement filters.
  • Always choose an aluminium cleanable pre-filter. These pre-filters are much more economical to run than pre-filter mats.
  • Above all, make sure your equipment is CE approved and conforms to the latest European standards. The final filtration efficiency should meet the standard, EN779.

To discuss the above points in detail or to find out which equipment will suit your needs, call free on 0800 975 9710.

What are the dangers of not using fume extraction?

  • Increased risk of respiratory problems
  • Irritation of the throat and lungs
  • Increased risk of cancer
  • Increased suffocation risks

How does a welding fume extractor work?

Welding and grinding can create harmful fumes and gases, a fan draws out those fumes into a cleaning system, eliminating harmful gases and preventing inhalation.

Exactly how much fume extraction is needed when welding?

Frequency/duration of welding Type of welding Good control practice
Sporadic low-intensity welding Gas, MMA, FCA, MIG, MAG LEV where reasonably practicable. Otherwise good general ventilation & RPE
Regular and/or highintensity welding Gas, MMA, FCA, MIG, MAG LEV and consider supplementary RPE
Regular and/or highintensity welding outdoors in the open air Gas, MMA, FCA, MIG, MAG, TIG RPE where LEV is not reasonably practicable
Sporadic low-intensity welding TIG and resistance spot welding Good general ventilation
Regular and/or highintensity welding TIG and resistance spot welding LEV



What is local exhaust ventilation (LEV)?

It is an ventilation system that extracts airborne contaminants such as dust, mists, gases, vapour or fumes out of the workplace preventing inhalation.

Local exhaust ventilation (LEV) for welding

  • Use on-torch as this is the most effective fume control for MIG welding when it is set up and used correctly.
  • For other types of welding fume where on-torch cannot be used, use LEV with a movable fume capture hood.
  • Ensure the correct set-up so it can be used without compromising weld integrity.

On-torch extraction is effective because

  • It is integrated with the welding gun
  • It moves with the weld
  • It is very close to the source at all times and it does not rely on the welder to reposition the extraction to maintain fume capture.

Extraction directly at welding torch

The torch is easily connected to the correct unit for capturing most of the hazardous gases. The extractor is positioned directly on the welding torch always ensuring accessibility, work becomes flexible, and the capture rate is fantastic.

Extraction with extractor arms

The arms are connected to a vacuum filter system removing contaminants from the air. The extraction arms are flexible, easy to position and does not obstruct the welder. There is no impact on the welding process and the capture rate is fantastic.

Portable fume extractors/filter units

Easily position the extractor arm anywhere that is required in the workshop. If welding is conducted in different locations, a portable solution is optimal. As with fixed extraction arms, they are flexible, easy to position and does not obstruct, ensuring no impact on the welding process.

Industrial welding and grinding table

The tables have integrated extraction of gases, dust and other particles generated during welding, grinding, and polishing. Very suitable for fixed workplaces and covers the surface area of the table. Adjustment of the extraction point is not required and the capture rate is very good.

Fume extraction for welding robots

Nozzles can be mounted directly on a welding machine which protects sensitive electronics and operators who oversee the facility. This solution is available in two variants which are extractor mounted on the welding nozzle or a hood mounted above the robot. Both solutions provide very good capture rates.

What are the different types of welding fume extractors?

  • Portable
  • On-Torch Packages
  • Mobile
  • Wall Mounted
  • Multi-User Systems
  • Downdraft Benches
  • Robotic Applications
  • Systems for Colleges & Training Centres

© 2021 AES Industrial Supplies Limited

Company Registration: 07988136 Registered Office: Olympic House, Collett, Southmead Park, Didcot, Oxfordshire, United Kingdom, OX11 7WB

AES

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