MOBIFLEX ULTRAFLEXIABLE FUME ARM 4M
Lincoln Electric Ultraflex LFA 4.1 Fume Extraction Arm – 4m
Keep your welding fume capture exactly where the fume is. The Ultraflex LFA 4.1 is a 4-metre flexible extraction arm designed to attach to Lincoln Electric's Mobiflex 200M and 400MS mobile fume extraction carts, giving operators a lightweight, easily repositioned capture point that follows the work rather than forcing the work to come to a fixed hood.
Why it matters
Local exhaust ventilation (LEV) is central to Australia's shift from Workplace Exposure Standards (WES) to Workplace Exposure Limits (WEL), effective 1 December 2026, and to compliance with AS/NZS ISO 21904 for welding fume extraction equipment. A flexible, easily positioned arm like the LFA 4.1 is what turns a mobile extractor into effective point-of-source capture — the arm has to reach the arc and stay there without operator fatigue, or the extraction system underperforms regardless of its rated airflow.
Features
- Ultra-light flexible positioning — moves and holds shape with minimal effort
- Minimal maintenance
- Dent and scratch resistant construction
- 360° rotatable hood for precise fume capture angle
- Airflow throttle valve for flow control at the hood
- 4m reach
Technical Specifications
| Spec | Detail |
|---|---|
| Brand | Lincoln Electric |
| Part Number | 7925220180A |
| Product Type | Welding Fume Cart Flexible Extraction Arm |
| Length | 4m (4000mm) |
| Height | 208mm |
| Width | 208mm |
| Weight | 17kg |
| Compatibility | Mobiflex 200M & 400MS fume extraction carts |
Compatibility
The LFA 4.1 is purpose-built to suit Lincoln Electric's Mobiflex 200M and Mobiflex 400MS mobile fume extraction carts — check your cart model before ordering to confirm fit.
Frequently Asked Questions
What is a fume extraction arm used for?
It's the flexible ducting and hood assembly that connects to a mobile or fixed fume extractor, letting the operator position fume capture right at the arc for effective local exhaust ventilation (LEV).
Which extraction carts does the LFA 4.1 fit?
Lincoln Electric's Mobiflex 200M and Mobiflex 400MS mobile fume extraction carts.
Why does hood rotation matter for fume capture?
A 360° rotatable hood lets the operator angle the capture point to match the welding position without repositioning the whole cart, keeping the hood close to the fume source — the single biggest factor in LEV effectiveness.
Does the arm need much maintenance?
No — it's built from dent and scratch resistant material and designed for minimal upkeep in daily workshop use.