Original Boci Laser Protective Lens for BOCHU BLT Series Cutting Heads

Protect your BOCHU laser cutting equipment with 100% original Boci laser protective lenses, engineered to keep your high-power laser running at peak performance. Designed for BOCHU BLT421, BLT441, BLT461, BLT642H, BLT662H, and BLT682H cutting heads, these lenses provide a tight, airtight fit to eliminate focal shift and ensure consistent, precise cuts.

Key Features & Benefits

Multiple Sizes for All Power Levels: Choose from 21.5x2mm, 25.4x4mm, or 34x5mm to match your laser power, supporting 8kW, 15kW, 20kW, 30kW, and 40kW fiber laser systems.
Perfect Compatibility: Precision-engineered to fit BOCHU BLT421, BLT441, BLT461, BLT642H, BLT662H, and BLT682H laser cutting heads, ensuring a secure, airtight seal that prevents focal shift.
Premium Material: Made of high-purity fused silica with excellent thermal stability and a high laser damage threshold, built to withstand the demands of continuous high-power laser operation.
Dual-Sided Anti-Reflective Coating: Precision AR coating delivers ≥99.8% transmittance, minimizing energy loss and maximizing cutting efficiency for cleaner, faster cuts.
Industrial-Grade Durability: Resistant to high temperatures, thermal shock, and scratches, ideal for 24-hour industrial production environments. Reduces downtime and maintenance costs by protecting your expensive internal optics from splatter, dust, and debris.

Product Specifications

Product Type: Boci Laser Protective Lens / Protective Window
Available Sizes: 21.5x2mm, 25.4x4mm, 34x5mm
Supported Power: 8kW / 15kW / 20kW / 30kW / 40kW
Transmittance: ≥99.8%
Material: High-purity fused silica
Coating: Dual-sided anti-reflective (AR) coating
Compatibility: BOCHU BLT421, BLT441, BLT461, BLT642H, BLT662H, BLT682H laser cutting heads