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S450-12 - Shade 12 Passive Welding Filter Plate 4.5x5.25 Replacement Lens

Packaging: 1 per each
$275.80/ea $172.38/1 per each only $172.38/eaSave 37%

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SKU: S450-12 Categories: ,

OVERVIEW

Reliable Passive Eye Protection for Industrial Applications

The Walter S450-12 is a high-quality passive welding lens filter plate designed to provide consistent and reliable eye protection for professional welders. Rated at Shade 12, this filter plate is engineered to block harmful ultraviolet (UV) and infrared (IR) radiation generated during the welding process. Unlike auto-darkening filters (ADF) that rely on sensors and power sources to switch states, a passive lens offers a fixed darkness level, ensuring that the welder's eyes are protected the moment the arc is struck, with zero delay or risk of battery failure. This makes it an essential component for safety-critical environments and heavy industrial fabrication.

Measuring 4-1/2 inches by 5-1/4 inches, this lens fits the industry-standard "big window" passive welding helmets. This larger viewing area provides excellent peripheral visibility and allows for a clearer view of the weld puddle and joint, which is crucial for maintaining bead consistency and quality. The lens is manufactured to meet strict optical standards, minimizing distortion and reducing eye strain over long shifts. Whether used as a primary lens or a backup for an ADF unit, the S450-12 delivers the optical clarity required for precision work.

Durability is a key feature of this product. Designed to withstand the rigors of the shop floor, the material is resistant to impact and thermal shock. While all lenses eventually require replacement due to pitting from spatter, this high-quality filter plate offers an extended service life when paired with appropriate clear cover lenses. It is compatible with most major brands of passive welding hoods that accept 4x5 retaining systems, making it a versatile stock item for tool cribs and MRO supplies.

Key Technical Specifications:

  • Shade Level: 12 (Fixed)
  • Dimensions: 4.5" x 5.25" (Standard Large View)
  • Protection: Continuous UV/IR filtration
  • Compatibility: Universal fit for 4x5 passive helmets
Additional Information
Packaging Description:1 Per Ea, 1 per each
Product Type:Passive Welding Lens
Material:Polycarbonate
Color:Dark Green
Standards:ANSI Z87.1
----- new values below ----
Lens Type:Passive Filter Plate
Material:Polycarbonate
Color:Dark Green
Standards:ANSI Z87.1
Shade:12
Dimensions:4-1/2 in x 5-1/4 in
Packaging Description:1 Per Ea
Product Type:Passive Welding Lens

INCLUDED

  • (1) Shade 12 Passive Welding Lens Filter Plate (4.5" x 5.25")

APPLICATIONS

  • Heavy Stick (SMAW) welding at medium-to-high amperages
  • MIG (GMAW) welding including spray transfer modes
  • Flux Cored (FCAW) structural welding
  • TIG (GTAW) welding where a fixed shade is preferred
  • General fabrication and repair
  • Shipbuilding and heavy equipment manufacturing

FAQ

The lens measures 4-1/2 inches by 5-1/4 inches, which is the standard size for 'large view' or 'big window' passive welding helmets.

Shade 12 is generally suitable for TIG welding at medium to high amperages (typically above 150-200 amps). For very low amperage TIG, a lighter shade might be preferred, while very high amperage may require a Shade 13 or 14.

No, this is a passive filter plate. It has a fixed darkness level and does not require batteries, solar power, or sensors to operate.

Generally, no. Most auto-darkening helmets use specific cartridges. This is designed for passive (fixed shade) helmets that accept a standard 4.5x5.25 inch glass or poly plate.

Yes, it is highly recommended to use a clear cover lens (polycarbonate) in front of this filter plate to protect it from spatter, sparks, and scratches.

This unit is typically manufactured from high-grade polycarbonate or hardened glass, offering impact resistance and optical clarity compliant with ANSI Z87.1 standards.

Measure the window opening or your old lens. If it is roughly 4.5 inches by 5.25 inches, this is the correct replacement. If your lens is smaller (2x4), you need the standard small size.

No, Shade 12 is too dark for oxy-fuel cutting. Cutting typically requires a Shade 3 to Shade 5 lens.

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