---
product_id: 230967749
title: "12/18mm FL50.8 & 16mm FL25.4 Laser Head With Air Assist For K40 Laser Engraver Cutter"
brand: "cloudray"
price: "€ 54.89"
currency: EUR
in_stock: true
reviews_count: 13
category: "Cloudray"
url: https://www.desertcart.gr/products/230967749-12-18mm-fl50-8-and-16mm-fl25-4-laser-head
store_origin: GR
region: Greece
---

# Supports 3 precise focal lenses (12/18mm FL50.8 & 16mm FL25.4) Integrated air assist for cleaner, sharper cuts Plug & play with easy installation on K40 machines 12/18mm FL50.8 & 16mm FL25.4 Laser Head With Air Assist For K40 Laser Engraver Cutter

**Brand:** cloudray
**Price:** € 54.89
**Availability:** ✅ In Stock

## Summary

> 🎯 Elevate your K40 laser game with precision and power — don’t get left behind!

## Quick Answers

- **What is this?** 12/18mm FL50.8 & 16mm FL25.4 Laser Head With Air Assist For K40 Laser Engraver Cutter by cloudray
- **How much does it cost?** € 54.89 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/230967749-12-18mm-fl50-8-and-16mm-fl25-4-laser-head)

## Best For

- cloudray enthusiasts

## Why This Product

- Trusted cloudray brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable Aluminum Build:** Lightweight yet robust aluminum construction guarantees long-lasting performance.
- • **Enhanced Cutting Quality:** Air assist nozzle reduces smoke and debris, delivering cleaner cuts every time.
- • **Seamless K40 Integration:** Designed specifically for K40 laser engravers with M22/M23 brackets for hassle-free upgrades.
- • **User-Friendly Installation:** Plug and play setup with simple alignment ensures you’re up and running in minutes.
- • **Precision Lens Compatibility:** Optimized for D12, D16, and D18 focal lenses to maximize engraving accuracy.

## Overview

The Cloudray Laser Head with Air Assist is a premium upgrade for K40 laser engravers, supporting three focal lenses (12mm, 16mm, 18mm) to enhance cutting precision. Featuring an integrated air assist nozzle, it significantly improves cut quality by minimizing smoke and debris. Crafted from durable aluminum, this plug-and-play accessory fits K40 machines with M22 or M23 brackets, offering an easy installation that boosts your engraving performance and machine longevity.

## Description

Buy Cloudray 12/18mm FL50.8 & 16mm FL25.4 Laser Head With Air Assist For K40 Laser Engraver Cutter: Engraving Machines & Tools - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Don’t think just do - Fit was perfect quality was absolutely stellar the value for the money was worth it. Ease of installation was there I had my 12-year-old cousin helped me do it. It worked absolutely great and it function better than stock. I loved it. Would definitely recommend to use on any K 40 laser
Review: New air assist for Monport 40W - Works well on my Monport 40W laser using the original lens. Was easy to install and looks much better than the original. In the next version, I would put a line on the outside indicated the position of the lens.

## Features

- 𝐒𝐮𝐩𝐩𝐨𝐫𝐭 𝐟𝐨𝐜𝐚𝐥 𝐥𝐞𝐧𝐬: D12 FL50.8mm / D16 FL25.4mm / D18 FL50.8mm focus lens ,Only support this three kind lens ,can not install dia.20mm focus lens ;The mount is also capable of Dia. 20mm reflective mirror
- 𝐄𝐱𝐜𝐞𝐥𝐥𝐞𝐧𝐭 𝐊𝟒𝟎 𝐀𝐜𝐜𝐞𝐬𝐬𝐨𝐫𝐢𝐞𝐬: This nozzle is one of the excellent enhancements to a k40 laser, It fits right on the cutter head, and improves the cut quality as well as preserves the machine.
- 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧: This k40 cutter head can work with K40 engraving machine ,when the fixed bracket to which the moving axis of the cutter is connected is M22 or M23;Pls keep in mind that not all K40 lasers are the same bracketing and setup.
- 𝐒𝐮𝐠𝐠𝐞𝐬𝐭𝐢𝐨𝐧: Air-assist connector position ,Suggest 5X8 silicon fles tube (Inner dia.5mm,outer dia.8mm )，since the outer diameter of the air auxiliary connector is 5.3mm
- 𝐄𝐚𝐬𝐲 𝐈𝐧𝐬𝐭𝐚𝐥𝐥𝐭𝐢𝐨𝐧: This is a plug and play system if the item can meet your K40 machine; If the air nipple and screw hole not lined up,Please align and screw it,it will be fine;The way to place the different lens: use the ring,install the dia.12 FL50.8mm focus lens; Take away the ring,install the dia.18 FL50.8mm focus lens;install the dia.12 FL50.8mm focus lens(Pls take a look of the dimension picture)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08JQ9FY56 |
| Best Sellers Rank | #261,189 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #715 in Jewelry Making Engraving Machines & Tools |
| Brand | Cloudray |
| Brand Name | Cloudray |
| Color | Set a (Only K40 Head) |
| Customer Reviews | 4.4 out of 5 stars 307 Reviews |
| Item Weight | 60 g |
| Manufacturer | Cloudray |
| Manufacturer Part Number | MP09K40SLHB |
| Material | Aluminum |
| Material Type | Aluminum |
| Model Number | K40 |
| Operation Mode | Automatic |
| Style | Laser |
| Style Name | Laser |
| UPC | 727277172253 |

## Product Details

- **Brand:** Cloudray
- **Color:** Set a (Only K40 Head)
- **Item Weight:** 60 g
- **Material:** Aluminum
- **Style:** Laser

## Images

![12/18mm FL50.8 & 16mm FL25.4 Laser Head With Air Assist For K40 Laser Engraver Cutter - Image 1](https://m.media-amazon.com/images/I/61ByqS0DT2L.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: How to place the lens？**
A: Please pay attention to the installation positions of different diameter focusing lenses , install D12 lens needs to be installed with a ring, and when install the 18mm FL50.8mm focal lens ,pls take away the ring,

**Q: Focus lens and mirrors are included?**
A: NO ,Focus lens and mirrors are NOT included, if you need the set you cloud take a look of these ASIN B0B4NTQZYN / B0B4NV3QGL / B0B4NWXMVK / B0B4NYVCKM

**Q: Where is he adapter ring shown in the picture ?**
A: The Ring is not packaged as a separate piece,Pls take a notice to the screwdriver slots in the middle piece ,You will discover that the 12mm adapter ring was installed,It was not visible unless the head is disassembled.

**Q: Pls keep in mind that not all K40 lasers are the same bracketing and setup**
A: This k40 cutter head can work with K40 engraving machine ,when the fixed bracket to which the moving axis of the cutter is connected is M22 or M23

## Customer Reviews

### ⭐⭐⭐⭐⭐ Don’t think just do
*by K***R on November 12, 2025*

Fit was perfect quality was absolutely stellar the value for the money was worth it. Ease of installation was there I had my 12-year-old cousin helped me do it. It worked absolutely great and it function better than stock. I loved it. Would definitely recommend to use on any K 40 laser

### ⭐⭐⭐⭐⭐ New air assist for Monport 40W
*by G***O on April 30, 2025*

Works well on my Monport 40W laser using the original lens. Was easy to install and looks much better than the original. In the next version, I would put a line on the outside indicated the position of the lens.

### ⭐⭐⭐⭐ Air Assist Works!
*by J***R on April 8, 2021*

I purchased the OMTech 40W CO2 laser engraver Cutter. After initially cutting simple cardboard and seeing it catch fire, I decided air assist is a must. Upgrading with Cloudray's Laser Head with Air Assist has made A HUGE IMPROVEMENT! HOWEVER, there were some drawbacks which I'll list below: 1) Upon receiving Cloudray's product, IT DIDN'T LOOK EXACTLY LIKE THE PHOTOS but looked exact to the one in the video. The Laser Head did NOT come with the metal clip pictured on top so I had to use the metal clip on the stock Laser Head that came with my K40. 2) For the Air assist Laser head to work properly, it needs to completely replace the old one to clear the bed/vent. That being said, IT WAS A HUGE PITA TO PULL THE STOCK LASER HEAD OFF. After struggling with it for some time, I finally resorted to using WD40 and applying tons of torque to twist the Laser Head apart from the metal plate it was sandwiching. Highly recommend unscrewing everything to separate the metal plate with the Laser Head from everything else before trying to unscrew the stock Laser Head apart. 3) STOCK K40 LENS WILL NOT FIT WITH CLOUDRAY AIR ASSIST LASER HEAD. I purchased a 18mm Lens and it works great with that.

## Frequently Bought Together

- Cloudray 12/18mm FL50.8 & 16mm FL25.4 Laser Head With Air Assist For K40 Laser Engraver Cutter
- Cloudray CO2 Laser Lens 18mm Laser Mirror CO2 Laser Focal Lens CO2 Focus Lens,CVD ZnSe for CO2 Laser Engraving Cutting Machine,Laser Cutter 40W-200W,Dia 18mm FL50.8mm
- Cloudray Laser Mirror Si Reflective Lens CO2 Laser Lens Si Gold Plated Mirror 20mm Co2 Laser Mirror for CO2 Laser Engraving Cutting Machine, Dia 20mm 3PCS

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-10-05*