The Fibre Laser Protective Lens (Middle/Bottom) 27.9mm x 4.1mm, made from high-quality fused silica and designed for 1064nm wavelength at 4kW power, provides essential protection for fibre laser cutting systems. This replacement lens, part number 211LCG0037, is specifically compatible with BTS240S and BM111 cutting heads, ensuring optimal performance and longevity of your laser equipment.

Engineered to withstand high temperatures and resist damage from laser exposure, it maintains cutting precision and protects internal components from contamination and wear, thereby extending the operational lifespan of your fibre laser machinery.