3MH70-0715-1016-1 - Speedglas 9100X Inside Cover Lens (Pack of 5)

Technical Overview of the Speedglas 9100X Inside Protection Plate

The 3M Speedglas Inside Protection Plate (Part Number 06-0200-20) is a critical consumable component designed exclusively for the Speedglas 9100X Auto-Darkening Filter (ADF). This plate serves as the final barrier between the welder's eyes and the sophisticated electronics of the welding filter. Measuring exactly 117mm by 61mm, it is engineered to fit the specific aperture of the 'X' series filter, distinguishing it from the smaller 'V' or larger 'XX' models within the 9100 family. Ensuring the correct size is paramount for maintaining the integrity of the helmet's seal against dust and fume ingress.

Manufactured from high-quality optical polycarbonate, this plate is designed to meet the rigorous optical class requirements of the Speedglas system. While the outer lens takes the brunt of spatter and heat, the inside plate is subjected to a different set of environmental stressors, primarily moisture from the operator's breath, sweat, and fine particulate matter that may circulate inside the helmet shell. Over time, cleaning this surface with shop rags or gloves can introduce micro-scratches that diffract light and reduce the clarity of the view, potentially causing eye strain. Regular replacement is mandated to ensure the welder receives the full benefit of the 9100X's high-definition optics.

This product is supplied in a pack of 5, facilitating efficient inventory management for MRO cribs and safety officers. By keeping a stock of these relatively low-cost consumables, facilities can prevent the premature failure of the much more expensive ADF units, which can be damaged if the inside plate is missing or compromised. The plate is marked for orientation to ensure proper installation, although it is generally reversible. It is compatible with all Speedglas 9100 series helmets equipped with the 9100X filter.