The Böhler Welding Guardian 50FM Air is an auto-darkening welding helmet with a flip-up filter, prepared for a PAPR powered air system. The Guardian 50FM ADF has light state shade 4, ranges 5-9 and 9-13, a 50 x 100 mm viewing area and optical class 1/1/1/2 to EN 379, with a clear grinding visor underneath. You buy the helmet only, without a unit: connect Guardian Air, Evolution Air or Supplied Air, or choose the Guardian 50FM Air Kit with Guardian Air.
Technical specifications
| Catalogue number | 86682 |
|---|---|
| Brand | Böhler Welding |
| Model | Guardian 50FM Air |
| Type | Auto-darkening flip-up helmet prepared for air (without blower unit) |
| Colour | Matt blue |
| ADF | Guardian 50FM (86697), flip-up |
| Shade levels (DIN) | 4 (light state), 5-9 and 9-13 |
| ADF viewing area | 50 x 100 mm |
| Optical class (EN 379) | 1/1/1/2 |
| Delay | 0.1 s, 0.5 s, 0.9 s |
| Grind mode | Visor under the filter and grind mode in the ADF |
| ADF power supply | CR2450 |
| Operating temperature | -5 to +55 °C |
| Works with | Guardian Air, Evolution Air, Supplied Air |
| Pack quantity | 1 pc. |
| Standards | EN 175 B, EN 379, EN 166, EN 12941 (TH3), EN 14594 (4A) |
Who it is for
For welders who switch between welding and grinding all shift long and want to breathe filtered air while doing it. The manual lists MIG/MAG, TIG with inverters, MMA, argon and helium shielded welding and AC/DC pulse welding. You grind with the filter raised while the air supply keeps running, because the hose stays connected to the shell.
Which blower unit it works with
- Böhler Welding Guardian Air PAPR blower unit, complete kit with filter: class TH3 to EN 12941, 180 to 220 l/min in 6 levels, up to 8 h on the 5200 mAh battery, 870 g with filter and battery. This unit is the basis of Böhler Welding Guardian 50FM Air Kit, flip-up welding helmet with Guardian Air PAPR.
- Böhler Welding Evolution Air PAPR blower unit, complete kit with filters: with this helmet class TH3 P R SL, with A1B1E1 gas filters class TH2 ABE1 P R SL; 180 to 240 l/min, up to 14 h on the 7800 mAh battery.
- Böhler Welding Supplied Air compressed air regulator for air-fed helmets, complete kit: compressed air supply at 3 to 8 bar, class 4A to EN 14594:2018, 180 to 220 l/min in 7 levels.
The Guardian 50FM Air is on the lists of certified helmets in the Guardian Air, Evolution Air and Supplied Air manuals, so changing the system does not require a new helmet. Units and kits are listed in the Powered air systems category.
What makes the Guardian 50FM Air different
- Flip-up ADF: lowered, it protects during welding; raised, it uncovers the grinding visor.
- Guardian 50FM filter: light state shade 4, ranges 5-9 and 9-13 and grind mode selected on the filter.
- Three delay times after the arc stops: 0.1 s, 0.5 s and 0.9 s, set with a switch on the filter.
- Sensitivity set with a knob, automatic switch-off after 15 minutes without use.
- 50 x 100 mm viewing area, True Blue Color technology, optical class 1/1/1/2 to EN 379.
- Adjustable air outlet to the forehead, face seal and air duct connector fitted at the factory.
- Headgear with top strap, longitudinal and angular adjustment.
- Matt blue shell, replaceable CR2450 battery in the filter.
In the box
- Guardian 50FM Air helmet with flip-up Guardian 50FM ADF
- Grinding visor under the filter
- Face seal
- Air duct connector
- Headgear with sweatbands
The box contains no blower unit, filters, battery pack, hose or belt: you get them with Guardian Air or Evolution Air. Spawlab is an authorised Böhler Welding distributor in Poland; you buy with a VAT invoice and we ship by courier from Krotoszyn, also to the European Union.
Consumables and spare parts
- Böhler Welding front cover lens Guardian 50, 62, 62F, Laser Guard (10 pcs) or the heavy-duty Böhler Welding front cover lens Heavy-Duty Guardian 50, 62, 62F, Laser Guard (5 pcs): front cover lenses, replaced when spatter impairs your view.
- Böhler Welding inner lens Guardian 50FM Air (5 pcs): inner lens for the Guardian 50FM filter.
- Böhler Welding ADF auto-darkening filter Guardian 50FM Air: spare Guardian 50FM ADF, supplied without the Böhler Welding ADF battery CR2450 Guardian, Evolution Vision, Evolution V80, Laser Guard battery; the retainer Böhler Welding ADF retainer with screw Guardian 50, 50M Air, 50FM Air holds it in the shell.
- Böhler Welding grinding visor Guardian 62F, 62F Air, 50FM Air (2 pcs): grinding visor, the same as in the Guardian 62F.
- Böhler Welding flip-up element Guardian 50FM Air (matt blue): matt blue flip-up element with fixings; the screws and knobs alone are Böhler Welding screws and knobs for flip-up element Guardian 62F, 50FM Air (1 set).
- Böhler Welding headgear Guardian 50, 62, 62F, Big Vision, Laser Guard and Böhler Welding sweatbands Guardian 50, 62, 62F, Big Vision, Laser Guard (2 pcs, front and rear): headgear and sweatbands.
- Böhler Welding face seal Guardian 50M Air, 50FM Air, 62 Air, 62F Air, Big Vision Air and Böhler Welding air duct Guardian 50M Air, 50FM Air, 62 Air, 62F Air, Big Vision Air: face seal and air duct connector.
- Böhler Welding standard air hose 100 cm Evolution Air, Guardian Air, Supplied Air or Böhler Welding FLEX flexible air hose up to 180 cm Evolution Air, Guardian Air, with the cover Böhler Welding air hose cover up to 120 cm Evolution Air, Guardian Air or Böhler Welding air hose cover up to 180 cm Evolution Air, Guardian Air: air hose to the unit.
- Böhler Welding magnifying lens (dioptre) +1.0 for welding helmets, Böhler Welding magnifying lens (dioptre) +1.5 for welding helmets, Böhler Welding magnifying lens (dioptre) +2.0 for welding helmets, Böhler Welding magnifying lens (dioptre) +2.5 for welding helmets: magnifying lenses from +1.0 to +2.5 dioptres.
Standards and certificates
The shell is certified to EN 175 B, the ADF is marked CE 4/5-9/9-13 to EN 379 with class 1/1/1/2, the cover lenses EN 166 1 B. The helmet complies with Regulation (EU) 2016/425. With Guardian Air the system reaches class TH3 to EN 12941, with Evolution Air class TH3 P R SL, with Supplied Air class 4A to EN 14594:2018. Only the lowered filter protects your eyes against arc radiation.
Documents
- Guardian 50FM Air instruction manual (PDF, multilingual)
- Guardian Air instruction manual with the list of certified helmets (PDF, multilingual)
- Evolution Air instruction manual with the list of certified helmets (PDF, multilingual)
- Guardian 50M/50FM Air Kit fact sheet (PDF, English)
- PPE and accessories catalogue 2023/24 (PDF, English)
Frequently asked questions
Which delay times does the filter offer?
Three: SLOW 0.9 s, MID 0.5 s and FAST 0.1 s. This is the time the filter takes to return from dark to light after the arc stops; you select it with a switch on the ADF.
Can I weld with the filter raised?
No. The Guardian 50FM Air manual states that eye protection against arc radiation applies only with the filter lowered. The visor underneath is for grinding.
Can I use it without a blower unit?
No. With the air supply off, carbon dioxide builds up and oxygen drops quickly under a sealed helmet, as the Guardian Air and Evolution Air manuals warn.
How long does Guardian Air run on one charge?
Up to 8 h at minimum airflow with a new filter and a charged 5200 mAh battery, 6 h at maximum. Charging takes 4 to 6 h, and before first use you run the battery flat and charge it for 16 h.
How does it differ from the Guardian 50M Air and the Air Kit?
The Böhler Welding Guardian 50M Air welding helmet for PAPR powered air systems has a fixed filter with one range, 9-13. The Guardian 50FM Air has a flip-up filter with ranges 5-9 and 9-13, three delay times and a grinding visor underneath: that is what the extra cost buys. The complete set with the Guardian Air unit is the Böhler Welding Guardian 50FM Air Kit, flip-up welding helmet with Guardian Air PAPR.
