K40 Mirror and Lens upgrade – replacement mirror and lens set for K40 Laser cutter



High quality crystal ZnSe lens which can withstand high power up to 100w

Zinc selenide (ZnSe) is a light-yellow, solid compound comprising zinc (Zn) and selenium (Se). It is an intrinsic semiconductor with a band gap of about 2.70 eV at 25 °C (77 °F). ZnSe rarely occurs in nature, and is found in the mineral that was named after Hans Stille called “stilleite.”

k40 mirror upgrade - mirror and lens set


Molybdenum, has a high hardness rating and is more resistant to wiping/cleaning
The Molybdenum mirror has high reflectivity and stable performance, and is suitable for laser tubes producing up to 100w. Molybdenum mirrors are not coasted

Molybdenum is a silvery-white metal that is ductile and highly resistant to corrosion. It has one of the highest melting points of all pure elements — only the elements tantalum and tungsten have higher melting points. Molybdenum is also a micro nutrient essential for life.

k40 mirror upgrade - mirror and lens set

Lens cleaning instructions :

Step1. Use an air gun to blow off any contaminants

Step2 . Wipe the surface gently with a damp cotton swab

Step3. Using light pressure, wipe the optics surface with damp cotton
Wipe excess contaminants with distilled vinegar and a clean dry cotton swab

Zohar - August 17, 2021

Thanks for giving

Daniel - August 19, 2021


Ryan - August 29, 2021


Matthew - September 10, 2021


Kai - November 25, 2021

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Crafter04 - January 10, 2022

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* Material: MO Material + China PVD ZnSe * Fast Heat Dissipation * excellent Optical Heat * Long Life Time: Not easy to crack Great Scratch Resistance * Low Power Loss * Focus Lens: 12*50.8mm or 18*50.8mm 1Pcs * MO Mirror: 20*3mm 3Pcs

Units Sold: 12

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