18mm CO2 Laser Lens/Mirror Mounting for K40

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Other products by : Lightobject
 Item# :   LSR-LH1820B
175 units available
  Price :   $16.50
 Quantity :  


This is a laser head with air-assist . The laser head is capable of hosting a 18mm focus lens and a 20mm reflection mirror. Air tube fitting is 5mm in diameter.


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


Air plug O.D: 5mm


Mounting plate cut hole requirement : 14mm in diameter


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



Average Rating:
(based on 18 reviews)

Showing 1 - 5 of 18 Reviews:

by Keith
on 2/2/2017
K40 upgrade
Unavailable in the UK but amazed how quick order arrived. Many UK suppliers are much slower. Excellent value even allowing for UK postage. Recommended retailer
by Willem
on 2/2/2017
Needs a fitting lens but get no reply on my mail asking for advice
by Ed
on 12/30/2016
Perfect upgrade
Before I purchased the K40 I saw this air assist head and decided I would try to make my own first. I thought it worked well until I got this head. The lightobject air assist is amazing! I bought it and the Improved 18mm ZnSe Focus lens (F50.8mm). The laser performance increased dramatically. I am able to cut at a third less mA with zero build up on my lens. I waited longer than I should have to buy this. If you're getting a K40 laser I suggest you set aside the money to order this head and a new lens at the same time.
by Graeme
on 12/8/2016
Streets ahead
There is no comparison with the original k-40 head. The machining on the original was abysmal with the mirror recess 1mm deeper on one side than the other and the nozzle outlet drilled offcentre. Excellent replacement.
by Mark Borden
on 11/21/2016
Great value
Nice construction. The lens cap was screwed on too tight and it was a bit of a job to get it off without damaging the threads on the housing mount but with some care, it was possible. You may need the lens adapter for the 12mm K40 lens. You can get an STL from Thingiverse.
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