Optrel Helix ADF outer lenses simply snap into the front of all of the Optrel Helix range of welding helmets. This large polycarbonate lens gives the welder an unobstructed 180° field of vision when the internal ADF on the Helix is flipped up. It’s not only designed to protect the ADF (auto darkening filter) from spatter, sparks, and other debris, but with its Class B medium energy impact classification, this also means that the lenses are approved for grinding and cutting applications.
Specification:
Meets EN166 Optical class = 1
B = medium energy impact, 120 metres per second (268 mph).
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