On Torch Welding Extraction
On torch welding fume extraction (or also known as on-tool extraction) capture welding fumes directly at-source as the weld is being completed. They provide a unique solution for [predominantly] MIG welders, where there are continuous wire welding processes taking place.
MIG welding torches, within with on-torch welding fume extraction offer a complete solution to the current HSE requirements as they remove the weld fumes away at-source. According to the most recent HSE welding fume facts, this is where the concentration of harmful substances will be highest, in what is called the 'plume of fume' that rise at the immediate point from the welding arc.
What is On Torch Welding Fume Extraction?
On torch welding fume extraction systems involves the use of a specialist welding gun, which features an integrated extraction tool functionality. Fumes are removed from over the welding pool at the welding point by a high vacuum system.
At the end of the welding gun nozzle (at the tip of the torch), guns feature small openings which draw away welding fumes at the source. Fumes are carried through the hose into either a portable or centralised high-vacuum system. These then collects and filters the fumes and returns clean air to the workshop.
Save Time and Money
On torch welding fume extraction systems offer an alternative capture method against typical local exhaust ventilation (LEV) systems, as they capture the fume at-source, at the exact point they're generated during the welding process. Whilst conventional LEV systems are typically required to be frequently repositioned, which can be an issue when working on large, or long workpieces. Repositioning interrupts the welder's task and can also be limited by the working radius.
On torch welding fume extraction leads to an increased arc on-time and productivity from welders, as the extraction unit isn't frequently being adjusted.
In addition, high vacuum extraction systems can save you money as they are much more energy-efficient. Lower energy usages enable a low-cost welding operation.
Limitations of On-Torch Fume Extraction
However, there are several limitations with on torch extraction guns which we'd always recommend you consider before selecting this method of welding fume extraction as the sole extraction solution. We came across a blog post to '4 Problems with Fume Extraction Torches and How to Overcome Them'.
A consideration to take into account when extracting welding fumes away from the source is the shielding gas. This must not be affected, as this can cause weaknesses and porosities in the weld. MIG torches can be specified to have variable suction control valves on the handle, so welders can adjust the airflow rate whilst welding.
What do the HSE State?
Shortly after the reclassification and the enforcement expectations changed, HSE released new guidance for managers. in November 2019, the HSE (Health and Safety Executive) released revised task-specific COSHH guidance for welding, cutting and allied jobs to help managers make sure that exposure to all kinds of welding fume is controlled in the workplace.
On the HSE's website, they have different guidance sheets depending on the task you're undertaking. These include:
- WL0 - Advice For Managers
- WL2 - Welding in Confined/Limited/Restricted Spaces
- WL3 - Welding Fume Control. In this guidance, it recommends: "Using a movable fume capture hood on a flexible extraction arm for large to extra-large workpieces."
Find out more about Welding Fume Extraction page.
The Right On Torch Welding Extraction Solution for Your Needs
Auto Extract Systems can help your business with all kinds of welding fume extraction and we have the right experience and expertise to help you comply with the HSE's welding fume control regulations.We only use the highest quality products and installations come complete with a 12-month installation warranty. Find out more about our LEV Installations service.
To find out more about on torch welding extraction and how we can help you find the right local exhaust ventilation (LEV) system for you and your business, head over to our News section. To arrange a free site assessment, call us on +44 (0)1942 267444 or click the yellow Request My Free Assessment button above.
Learn How We helped Businesses Like Yours
To find out more about the latest LEV installations we've been working on, check out our Case Studies section.
Request your FREE LEV Site Assessment Today!
We'll call to arrange a convenient time and date to visit your site. We'll analyse your working processes, assess the substances used and the contaminants generated. We'll work out how best to control the dust and fume in a way that's in line with your COSHH risk assessment. Next, we'll design you a comprehensive LEV system that adheres to HSG258 guidance and send this you to via email.
We'll do all this to ensure we fully understand your dust and fume extraction requirements and help you to provide a pollution-free workplace!
This is an amazing service we do for thousands of businesses throughout the UK and Ireland every year. We work with such a wide variety of industries, from manufacturing, industrial, woodworking, pharmaceutical and automotive workshops to schools, colleges and military establishments.
Request your FREE, no-obligation LEV site assessment today!
Why Choose Us?
Auto Extract Systems Ltd is the UK’s leading Local Exhaust Ventilation (LEV) company. Over the last 20 years, we've helped thousands of businesses create dust and fume free workplaces.
As experts in all things LEV, we can help your business become COSHH (Control of Substances Hazardous to Health) Regulation 2002 compliant with a tailored LEV solution. We provide comprehensive design, installation, maintenance and certification services across a range of industry sectors. Find out more about us here.