LINCOLN MOBIFLEX 400-M MOBILE FUME EXT
Lincoln Electric Mobiflex™ 400-MS Portable Fume Extraction System
Get heavy-duty welding fume extraction that goes wherever the work is. The Mobiflex™ 400-MS is a portable, low vacuum/high volume self-cleaning filtration system built for demanding extraction and filtration duty — from maintenance departments and general fabrication to full industrial welding environments running longer, more frequent duty cycles.
Why it matters
Effective source-capture fume extraction is central to Australia's shift from Workplace Exposure Standards (WES) to Workplace Exposure Limits (WEL) from 1 December 2026, and to AS/NZS ISO 21904 compliance for welding fume extraction equipment. A self-cleaning system like the Mobiflex™ 400-MS keeps filtration performance consistent across long production runs rather than degrading as particulate builds up — which matters for facilities that can't afford downtime for manual filter servicing.
How it works
The internal extraction fan — purpose-built for weld applications — draws fume through the arm and into an internal spark arrestor, then through a self-cleaning filter cartridge that captures welding fume particulate. As particulate collects on the outside of the cartridge, the system automatically cleans it, dropping the particulate into the collection bin for easy disposal. Recommended filter life is approximately 2,722 kg of MIG wire or 1,814 kg of stick/flux-cored wire consumed before replacement (actual performance varies with base metal, consumables, and coatings).
Features
- Low vacuum/high volume self-cleaning filtration
- Lightweight, rugged design with front caster and rear wheels for easy portability
- Suited to multi-location extraction needs across a facility
- Handles longer, more frequent welding duty cycles thanks to self-cleaning operation
- Internal spark arrestor
- Configurable with Lincoln's LFA 3.1 (3m) or LFA 4.1 (4m) fume extraction arms, or a 160mm diameter flexible hose and hood set for confined spaces and hard-to-reach areas
Technical Specifications
| Spec | Detail |
|---|---|
| Brand | Lincoln Electric |
| Model | Mobiflex™ 400-MS |
| Part Number/SKU | 7045400700 |
| Process | Fume Extraction |
| Filter Type | Self-cleaning cartridge filter |
| Recommended Filter Life | ~2,722 kg MIG wire or ~1,814 kg stick/flux-cored wire |
| Mobility | Front caster and rear wheels |
| Required Accessory | Fume extraction arm — 7925170180A (3m) or 7925220180A (4m) |
Compatibility
Requires a fume extraction arm, sold separately: LFA 3.1 (part 7925170180A, 3m) or LFA 4.1 (part 7925220180A, 4m). For confined spaces where an extraction arm isn't practical, a 160mm diameter flexible hose and hood set can be used instead.
Frequently Asked Questions
What is the Mobiflex™ 400-MS used for?
It's a portable, self-cleaning fume extraction and filtration system for welding applications — suited to facilities needing extraction across multiple locations, including maintenance, fabrication, job shop, and industrial settings.
Does the Mobiflex™ 400-MS come with a fume extraction arm?
No — an arm is required but sold separately. Choose the LFA 3.1 (3m) or LFA 4.1 (4m), or use a 160mm flexible hose and hood set for confined spaces.
How does the self-cleaning filter work?
Particulate collects on the outside of the filter cartridge as fume passes through. The system automatically cleans the cartridge, dropping captured particulate into a collection bin for disposal — no manual filter servicing needed between cleans.
How long does the filter last?
Recommended service life is approximately 2,722 kg of MIG wire consumed, or 1,814 kg of stick or flux-cored wire, before replacement. Actual life varies with base metal, consumables, and coatings such as oil.
Can it be used in confined spaces?
Yes — in place of an extraction arm, a 160mm diameter flexible hose and hood set can be carried into hard-to-reach areas where an arm isn't feasible.