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Welding, Plasma & Laser Cutting

Industrial lasers cut flat-sheet material as well as structural and piping materials. Welding often generates gases and smoke containing particles of various types of oxides. The size of the particles can influence the toxicity of the fumes, with smaller particles presenting a greater danger. Many processes produce gases (most commonly carbon dioxide and ozone, but others as well) that can prove dangerous if ventilation is inadequate. 

The generation rate of fumes and gases varies with the composition of the base metal, fluxes, and fillers, and with the rate and depth of welding or cutting. Exposure to the operator varies with the generation rate, duration and frequency of operations, work practices (particularly distance of the plume from the breathing zone), and the effectiveness of ventilation.

Arc welding uses an electric arc between a consumable or non-consumable electrode and the base material to melt the metals at the welding point. The welding region is sometimes protected by inert or semi-inert gases (shielding gas), and/or an evaporating filler material. Arc welding is widely used because of its low capital and running costs.

Developed in the 1950's, Plasma (Arc) cutting allows cutting of metals that could not be flame cut, such as stainless steel, aluminum and copper. Plasma cutting uses electrically conductive gas to transfer energy through the plasma torch to the material being cut. Plasma gases include argon, hydrogen, nitrogen and mixtures, plus air and oxygen.

Laser cutting is typical in industrial manufacturing applications, but is starting to be popular with schools, small businesses and hobbyists. Laser cutting directs the output of a high-power laser at the material. The material then melts or burns, and a gas blows the residue away from the cut, leaving an edge with a high-quality surface finish. Industrial lasers cut flat-sheet material as well as structural and piping materials. When compared to plasma or flame cutting, laser cutting utilizes a much more focused or smaller cut, so it puts much less heat into the workpiece and removes a narrower path of material. This allows the laser to cut precise parts to a higher tolerance and with less taper on the cut edge.

Ventilation Recommendations:

Choose a hood design in the following descending order of effectiveness:

  • Enclosing hoods are by far the most effective in controlling welding contaminants; however, they restrict access and force reconsideration of material and product handling.
  • Capturing hoods are less effective than enclosures but can be adequate if properly used.

General ventilation filters the air in the entire room to reduce the airborne fume concentration. Consider this method only if source capture is not possible and/or practical. Because general ventilation does not remove fume at the source, it does not limit exposure at the worker’s breathing zone.

Dust Collectors for Welding, Plasma Cutting & Laser Cutting Applications

Because of the variation in welding, plasma cutting and laser cutting applications (airflow, loading, fume properties), multiple dust collectors can be suitable. The Donaldson Torit® PowerCore® TG collector series is the latest breakthrough product to revolutionize the approach to dust collectors for welding, plasma cutting & laser cutting. It combines an ultra-high efficient filter with a “smaller and smarter” footprint and the lowest maintenance cost in the industry. Traditionally, cartridge collectors are a traditional type of collector due to the small nature of the particulate size in fume. The Donaldson Torit Downflo® Oval Cartridge Collector is the recognized leader in this category, and is the proud winner of Filtration Products “Product of the Year”.

Products for Welding, Plasma & Laser Cutting


Donaldson Torit® advanced-technology cartridge dust collectors and a variety of filter media that conquer the challenges of most types of industrial dusts, including pharmaceutical, chemical, grain, bulk/powder, food, metal and others. ​​​

Downflo® Evolution

The best-in-class Downflo® Evolution (DFE) dust collector is capable of reducing equipment size and number of required filters by up to 40% compared to a typical cartridge collector.

Packaged Downflo® Evolution

The Packaged Downflo® Evolution combines Donaldson Torit’s industry-leading cartridge technology with an integrated fan and electrical controls – all in an attractive, quiet collector.

Downflo® Oval

The high performance Downflo® Oval (DFO) family of dust collectors provides up to 25% more filtration capacity than other same-sized cartridge collectors.


Torit® PowerCore® dust collection technology use proprietary Ultra-Web nanofiber technology​, which allows for a smaller, more efficient filter, reducing the overall footprint of the dust collector.

PowerCore® TG Series

Designed for thermally generated dust with a footprint up to 65% smaller than most other cartridge collectors.


We offer a complete line of dependable, rugged baghouse dust collectors including RF, Dalamatic®, IRD, Unimaster® and many others to keep your operation running smoothly.


The Unimaster® dust collector is an economical and effective solution for a diverse range of nuisance dust problems. 


Model: PowerCore TG-8
Application: Welding
Location: Colorado

Model: Downflo Oval (DFO) 3-12
Application: Plasma Cutting
Location: Ohio

Model: Downflo Oval (DFO) 2-4
Application: Welding (Source Capture)
Location: Kansas

Model: Downflo Oval (DFO) 3-3 w / Canopy Hood & Drop Curtains
Application: Welding (Source Capture)
Location: Michigan

Model: Downflo Oval (DFO) 4-80
Application: Welding (Source Capture)
Location: California

Six Things to Consider When Purchasing a Dust Collector

We advise the following six considerations to ensure you get exactly what you need in a dust collection sysem.

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Footprint. Appearance. Performance.

The Torit® PowerCore® TG improves Modern Tool's manufacturing processes & reduces operational costs.

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