External Protection Plate 3M™ Speedglas™

3M Speedglas protection plates are the consumable lenses of Speedglas 9000 and 9100 series welding helmets. They protect the welding filter, the most expensive part of the helmet, against spatter, sparks and scratches.

Available versions

• 9000 outside plate and 9100 outer plate: weld side, in front of the filter.
• 9000 inside plates: several versions in the catalogue.
• 9100 inner plate: clear.

Why two plates

The auto-darkening filter sits between two protection plates. The outside plate receives molten metal spatter and fumes: it deteriorates quickly and is replaced often. The inside plate protects the filter on the face side, against fogging, dirt and knocks during handling; it wears much less.

When to replace them

A plate pitted with spatter, scratched or clouded impairs vision: the welder sees the weld pool less well and moves closer to the part, which increases exposure to fumes. Replacing a plate costs little; working with a worn plate costs weld quality and comfort.

Never use the helmet without an outside plate: direct spatter on the filter can damage it permanently.

Compatibility

9000 series and 9100 series plates are not interchangeable: they do not have the same dimensions. Check the helmet series before ordering.

See also our auto-darkening welding helmets, our welding helmets range and our 3M products.