18mm CO2 Laser Lens/Mirror Mounting for K40

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Item #: LSR-LH1820B
Our Price: $19.50
84 units available


This is a laser head with air-assist . The laser head is capable of hosting a 15mm/18mm diameter focus lens and a 20mm diameter reflection mirror. With the O-ring in the lens holder, the laser head now can install a 15mm diameter focus lens.


This is a GREAT replacement for K40 or D40 that comes with no air-assist in original packing!


Air plug outer diameter: 5.5mm


Mounting plate cut hole requirement : 14.5mm in diameter


Suggested tubing:  5X8 Silicon Flex Tube for CO2 Water Cooling



Average Rating:
(based on 33 reviews)

Showing 1 - 5 of 33 Reviews:

by afacuarius
on 3/14/2019
Buen Producto
Excelente producto para mi K40, es la misma que aparece en la imagen, es de gran utilidad para mantener la lente en buenas condiciones de limpieza, además de ayudar a producir un flujo de aire y evitar que se ensucie con el humo. Soy de México, es la segunda boquilla que compro.
by Melissa
on 1/24/2019
Easy swap-out for stock 40W K40 head
This head was a perfect purchase for my 40W (K40) machine. I thought I would have to modify things to line up with the new head and modify to install it. But that was not the case (wonderful surprise). I unscrewed the old head to remove it, and installed the new one right in the same mounting hole. And the laser opening (where the laser enters) was at the same exact height position as the old one. It just took a couple minutes to remove the old and install the new. And with an upgraded 18mm lens, this was a terrific inexpensive upgrade to my machine. Highly recommend!
by Alfred
on 12/10/2018
Well made
Esily installed and made a huge difference in the quality of output
on 11/2/2018
Don't buy!
Terribly made. The screw that's suppose to fasten the nozzle to the lens holder can't be screwed in because the hole is too shallow.
by Richard
on 6/28/2018
18 mm laser head with air assist
I primarily use my k40 for engraving acrylic for edge lit lamps. I can't even tell you how much improvement this upgrade has made. It's incredible. I'm able to turn down my engraving power by 20 to 25% to get the same results. I also recommend the 18mm lens and a 950gph air pump for the air assist. You won't be disappointed.
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