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Mobile versus On Torch Fume Extraction
We explore the differences between mobile and on-torch fume extraction solutions and provide some extraction model recommendations
Welding Fume Commentary
In 2019, HSE changed their enforcement expectations for all workers who undertake welding activities. As a result of scientific research, evidence suggests exposure to welding fume, can cause lung cancer.
This legislation requires those exposed to welding fume, to have effective preventative measures in place to control it and stay protected. Particular reference is made to not just welders, but all third parties who exist in an environment where weld fume maybe breathed.
All measures must be taken by industry to capture welding fume at source with LEV equipment, respiratory PPE alone is not enough.
This article will explore two of the main fume extraction solutions mobile and 'on torch' extraction.
MOBILE FUME EXTRACTION
One of the most well-known Local Exhaust Ventilation (LEV) solutions is the mobile fume extractor.
- Welding particulate and contaminants are drawn down a rigid or flexible arm, fume being filtered, either by a replacement filter system or self cleaning cartridge.
- Self cleaning being the more economical option, as the operator can blow out the cartridge on a regular basis to maintain the unit, without the need for a filter change.
- An agile solution with portability being the main attraction, the mobile can sometimes suffer from a lack of effectiveness, with the operator failing to pull the collection nozzle into the capture zone, as they move around the job.
YOUR MOBILE OPTIONS
We offer a range of mobile extractors with differing capabilities, arm lengths & voltages as follows:
- For maintenance workshop & low fume applications; the Kemper Smartmaster & Protectoxtract filter units have audible arms & would typically require a filter change every 15 reels of MIG wire consumed.
- For more industrial applications the Kemper Profimaster & self cleaning ProtectoXtra portables hit the spot. The ProtectoXtra works on a cartridge system, with a bin being emptied into the hazardous waste. Meaning no filter change & a cost effective solution year on year. It is multi voltage, making it very adaptable for site & workshop alike.
ON-TORCH EXTRACTION
Another method, which is rising in popularity, is ‘on-torch’ fume extraction, a process in which fume is captured at source, by the MIG gun.
- This involves replacing a standard MIG torch with a fume extraction torch, which is connected to a hose and high vacuum filtration system.
- The unit then takes fume directly from the nozzle of the torch, filtering out the metal particulates.
- The advantage of 'on torch' is that it offers the highest level of fume extraction, at an approximate rate of 90% fume removal.
- The downside of this is the fume torch can be slightly heavier than the regular MIG torch, however more ergonomic designs are constantly being developed.
YOUR ON TORCH OPTIONS
We offer a range of on torch extraction solutions, including our very own robust, steel cased, heavy duty on-torch extractor, the Foster Works X-300A..
The Foster Works offers a unique two stage filtration system, designed to remove metal particles & ozone. With regular maintenance, via a compressed air cleaning system, filters are unlikely to be changed for a number of years. An auto/on off feature gives the motor life an added longevity.
Offering W3 compliance, the user receives the highest protection against hazardous welding fumes. For a demonstration, simply give us a call & we can complete a site fume survey to boot.
RESPIRATORY PROTECTIVE EQUIPMENT
Where engineering controls are not adequate, suitable respiratory protective equipment is also required. With the growing concern over welding fume, we designed our own air-fed welding helmets, the Prem-Air, and the Prem-Air GX with grinding visor. Designed for maximum comfort and ease of use, this reduces the risk of fume exposure by filtering the air through to PAPR unit.
Why use Air Fed welding helmets (RPE) ?
As primary local exhaust ventilation such as an 'On torch' or a mobile welding fume extraction fail to remove all welding fume, it is recommended the operator is fully protected by wearing RPE.
Your choice of Air fed welding helmet should consider a number of factors such as; ADF welding filter specification. head comfort, grinding head tops and level of filter protection. You can maker further assessments of air fed masks concerning PAPR battery charging times, particle filter life, the blower unit weight & the cost of consumables. If you are a spectacle wearer, ensure you can fit an magnifying lenses.
Best Selling mobile extractors compared
Occasional use-Welding fumes only
W3 Compliant
Filter monitoring; Filters lasts up to 15 reels of MIG wire consumed
Suitable for MIG, TIG & stick
Voltages; 110 or 240 volts
Regular/Medium level use; Welding & Occasional grinding with aluminium filter fitted
W3 compliant
Filter monitoring; Filter lasts up to 30 reels consumed
Suitable for MIG, TIG & stick
Available in 110, 240 & 415 volt versions
3 & 4 metre arm options
Medium level usage; Welding fume & occasional grinding dust
W3 compliant
Filter cartridge monitoring; Cartridge cleaning can mean change every five years. Filter-less.
Suitable for MIG, TIG & stick
110/240 dual voltage
3 & 4 metre arm options
FUME EXTRACTION SURVEYS
Monitoring weld fume levels can be difficult, so let us do it for you. Did you know we provide free welding fume extraction surveys to measure your exposure levels? We will advise on the necessary LEV equipment, so you don’t have to mess around. There is not a one size fits all, so it’s important to find out your best solution for your unique requirements. Get in touch today, conform to HSE, stay protected.
