55760 - Forney Inner Protective Lens Replacement 3.75" x 1.98" (2-Pack)

Product Overview

The Forney 55760 Inner Protective Lens is a specialized consumable designed to maintain the operational integrity and optical clarity of specific Forney welding helmets. Measuring exactly 3.75 inches by 1.98 inches, this lens serves as the interior shield for the Auto-Darkening Filter (ADF). While outer lenses are responsible for deflecting high-heat spatter and slag, the inner lens plays an equally critical role in protecting the sophisticated electronics of the ADF from the welder's environment—specifically moisture from breath and sweat, as well as fine particulate matter that circulates inside the helmet shell.

Compatibility and Fit

Precision is paramount when selecting replacement lenses. The Forney 55760 is engineered to fit a specific range of Forney helmet models, ensuring a seal that prevents debris from bypassing the lens. This product is compatible with the following models:

• 55731
• 55732
• 55857
• 55858
• 55859
• 55860
• 55861
• 55862

Using an incorrectly sized lens can lead to loose fitment, which not only causes annoying rattling during head movement but also exposes the expensive ADF cartridge to potential damage from dust ingress.

Material and Optical Quality

Manufactured from high-grade polycarbonate, these lenses offer excellent impact resistance and optical transmission. The material is selected to minimize distortion, ensuring that the welder sees the puddle and arc with the highest possible definition. Clear vision is essential for producing quality welds, and a scratched or clouded inner lens can significantly impede a welder's ability to judge arc length and travel speed accurately. The polycarbonate material is also resistant to shattering, adding an extra layer of safety for the user's eyes.

Maintenance and Replacement

Over time, inner lenses accumulate residue from cleaning, scratches from handling, and fogging from humidity. It is a best practice to inspect the inner lens regularly and replace it immediately upon signs of pitting or cloudiness. This 2-pack configuration provides an efficient inventory solution, allowing for an immediate replacement and a backup spare, thereby reducing downtime in industrial operations. Proper maintenance of the inner lens extends the life of the entire helmet assembly.