The Guardian 50 welding helmet is an auto-darkening helmet from Böhler Welding for welding and grinding. The ADF has a 50 x 100 mm viewing area, light state shade 4 and a dark range of shade 9 to 13 set with a knob on the outside of the shell. It has 4 arc sensors, EN 379 rating 1/1/1/2 and the same Comfort headgear as the Guardian 62.
Technical specifications
| Catalogue number | 32371 |
|---|---|
| Brand | Böhler Welding |
| Model | Guardian 50 |
| Type | auto-darkening welding helmet (ADF) |
| Shades (DIN) | light 4, dark 9-13 |
| Shade adjustment | external knob |
| Grind mode | yes |
| ADF viewing area | 50 x 100 mm |
| Optical class (EN 379) | 1/1/1/2 |
| Arc sensors | 4 |
| ADF power supply | CR2450 battery |
| Automatic shut-off | after 15 min without use |
| Operating temperature | -5 to +55 °C |
| Pack quantity | 1 pc. |
| Standards | EN 175 B, EN 379, EN 166, CE, UKCA, ANSI, CSA |
Who it is for
- MIG/MAG, stick welding (MMA), TIG on inverter power sources, AC/DC pulse welding and work under argon and helium shielding: this is the application list from the instruction manual.
- Work where one dark range of shade 9 to 13 is enough; choose the shade for your process and current from the chart in the manual.
- Grinding between welds: grind mode is selected with the same knob that sets the shade.
- Workshops and production halls, operating temperature -5 to +55 °C.
What makes the Guardian 50 welding helmet different
- 50 x 100 mm viewing area with True Blue Color technology.
- EN 379 rating 1/1/1/2: optical class 1, diffusion of light 1, variation in luminous transmittance 1, angle dependence 2.
- 4 arc sensors; sensitivity is set with a stepless knob.
- Knob on the outside of the shell: shade 9 to 13 and a grind position.
- High impact nylon shell marked EN175 B (medium energy impact).
- Comfort headgear with a rear size knob, top strap adjustment, longitudinal and angular adjustment and a smooth ratchet.
- User-replaceable CR2450 battery; the filter shuts off by itself after 15 minutes without use (there is no on/off switch).
- CE, UKCA, ANSI and CSA certification.
In the box
- Guardian 50 welding helmet, assembled and ready to use after fitting the headgear
- Guardian 50 ADF with front cover lens and inner lens
- Comfort headgear with sweatbands
- Instruction manual
Consumables and spare parts
- Böhler Welding front cover lens Guardian 50, 62, 62F, Laser Guard (10 pcs): lens in front of the filter, shared by the Guardian 50, 62 and 62F; replace it when it is cracked, scratched or covered with spatter.
- Böhler Welding front cover lens Heavy-Duty Guardian 50, 62, 62F, Laser Guard (5 pcs): reinforced HD front cover lens.
- Böhler Welding inner lens Guardian 50, 50M Air (5 pcs): inner lens made for the Guardian 50 (the Guardian 62 inner lens does not fit).
- Böhler Welding inner lens plunger Guardian, Evolution, Laser Guard (2 pcs.): plunger tool for removing the inner lens.
- Böhler Welding ADF auto-darkening filter Guardian 50, 50M Air: spare Guardian 50 filter, supplied without battery.
- Böhler Welding ADF battery CR2450 Guardian, Evolution Vision, Evolution V80, Laser Guard: battery for the ADF.
- Böhler Welding ADF retainer with screw Guardian 50, 50M Air, 50FM Air: frame and screw that hold the filter in the shell.
- 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): replacement headgear and sweatbands.
- Magnifying lenses (dioptres): 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.
- Böhler Welding head top pouch (black) and the bags Böhler Welding Bag for helmet and PAPR system, black, Böhler Welding Bag for helmet and PAPR system, blue and Böhler Welding Evolution Bag for helmet and PAPR system, blue for storage and transport.
- Böhler Welding LED light for welding and grinding helmets: lights up the work area and fits any welding or grinding helmet.
- Böhler Welding hard hat adapter Guardian 50, 62, 62F, Big Vision: adapter for mounting Guardian helmets on a hard hat.
All other helmet parts are in the category Welding helmet parts. As an authorised Böhler Welding distributor and service partner in Poland we match parts by the numbers in the manufacturer's manual.
Standards and certificates
The shell meets EN 175 (marking EN175 B), the ADF meets EN 379 (marking CE 4/9-13 VA 1/1/1/2 EN379) and the cover lens meets EN 166 (marking EN166 1 B). The helmet complies with PPE Regulation (EU) 2016/425 and is certified to CE, UKCA, ANSI and CSA.
Documents
- Guardian 50 instruction manual (PDF, multilingual)
- Fact sheet Guardian 50, 62 and 62F welding helmets (PDF, English)
- PPE & accessories catalogue 2023/24 (PDF, English)
Frequently asked questions
How does the Guardian 50 differ from the Guardian 62?
The Guardian 50 has a 50 x 100 mm filter with one dark range of shade 9 to 13 set by a knob. For the extra cost of the Guardian 62 (Böhler Welding Guardian 62 auto-darkening welding helmet) you get a larger 62 x 98 mm viewing area, a second range of shade 5 to 9, an external mode switch and a filter approved for TIG above 5 A. The Comfort headgear and the front cover lens are the same on both models.
Which inner lens do I need?
The Guardian 50 takes the Böhler Welding inner lens Guardian 50, 50M Air (5 pcs). The front cover lens is shared with the Guardian 62 and 62F, so one stock of front lenses covers several models.
Is the Guardian 50 suitable for grinding?
Yes. The knob on the outside of the shell has a grind position in which the filter does not darken. For frequent grinding a helmet with flip-up filter and grinding visor, such as the Guardian 62F (Böhler Welding Guardian 62F auto-darkening flip-up welding helmet), is more practical.
How do I switch the helmet off and which battery does it use?
There is no on/off switch: the filter shuts off by itself after 15 minutes without use. It runs on a CR2450 battery (Böhler Welding ADF battery CR2450 Guardian, Evolution Vision, Evolution V80, Laser Guard), which you insert as shown in the manual.
Can I connect an air supply to the Guardian 50?
No, this version is not prepared for air. For work with powered air purifying respirators there is the Guardian 50M Air Kit (Böhler Welding Guardian 50M Air Kit, welding helmet with Guardian Air PAPR): Guardian 50M Air helmet and Guardian Air system in a bag. The Guardian 50 is not suitable for laser welding.
