90W RECI W2 laser tube outputs concentric circles

I’ve received a new laser I purchased. It’s a 90W RECI W2 laser. I initially thought I had bought the best, but now I think I might be one of the unlucky ones…

It turns out it has what I believe to be a defective laser beam, as it outputs a laser beam in the form of concentric disks (TEM20).

This happens at both low and high power, although they merge at high power and the problem is not that visible anymore.

I’ve aligned the mirrors perfectly and it does focus on a point seemingly correctly, but it doesn’t have as much power as my previous 80W tube. Before, I could cut a 5 mm thick acrylic with 23% power and 6 mm/s, while now it barely cuts it with 38% power and 6 mm/s.

Additionally, the engraving quality on acrylic is terrible: the scan lines are interrupted (even when engraving at 19%, while the minimum that produces an output is 8%), not all the details are visible in white… the laser is very unstable. But I am using the laser within specifications, it should work fine! Some examples:

With this new RECI laser (19%), look how unstable and flaky the lines are:

And with my previous laser, look how stable and perfect the lines are:

The RECI laser again:

Was supposed to be this:

And a comparison of engraving with my previous laser tube:

I reached out to Cloudray and they have been requesting multiple videos from me. I sent them one, they replied that it’s not sufficient, and asked for another. This cycle continued for 2 weeks, and they ended up requesting around 6 videos.

They insisted that I send videos testing the laser at maximum power (28 mA). I explained that at this power, the concentric rings are less visible due to merging, but they are most visible at 36% power. Eventually, I sent videos at both power levels. However, their response is that they don’t see any issue with the laser: “The engineers and manufacturers have carefully reviewed the several test videos you provided, and it is indeed impossible to determine the problem with the laser tube from them.”

I also argued that I engrave at 14% ~ 5-7mA, and the problem occurs at this current, not at 28mA. They repplied: “Low power can also lead to incomplete combustion of the light spot. You can adjust the working power to 40% -50%”.
I understand that the minimum power the laser produces an output, which is 8% for this laser and my current power supply (DY-13), the beam is unstable, but I am using between 12% and 17%!
I am using the laser within specifications, it should work across the normal range. Nobody runs the laser at 100% power nor engraves acrylic at 50% power with a 90W laser!

I’m feeling quite disheartened. I just want a good laser tube. The best scenario would be to get a replacement tube. If I request a refund, they will only reimburse the product price, not the shipping fee (which was €200) nor the customs fee (150€). I’m losing 350€ + the cost of not operating for 3 weeks (for now).

Some more images:
TEM20 in acrylic in 3D. 50% power and 1.5 seconds:

Circular beam shape. 20% power and 140 ms:

Please, can someone advise me what I can do in this situation?
Thanks in advance

Please tell me your order number, if you did not purchase from Cloudray official website, you can only contact your supplier for processing

I purchased it on AliExpress.

After persistently requesting a replacement, Cloudray answered that in order to receive a replacement tube, I would need to pay an additional $200. But I don’t want to pay another $200 plus customs fees (€150) just because they sent me a defective tube and because RECI doesn’t want to admit that their product is faulty! Their decision was based on the reasoning in these messages:

  • “the RECI manufacturer does not agree to compensate for this laser tube because the provided video does not meet their after-sales requirements.”
  • “according to the video, engineers and manufacturers have determined that the output and spot of the laser tube are normal.”

Their stipulation was that I submit a video of the laser firing at maximum power (28mA) for 5-10 seconds on a 5mm acrylic sheet located at the tube’s output, in order to observe the resulting pattern.

Although the pattern at max. power resembled a somewhat conical shape as the one in @jkwilborn’s post, there was still a noticeable merged half ring that RECI seemed to overlook.

These conditions strike me as rather impractical for “after-sales requirements,” given that most engraving occurs at lower power levels and the issues arise during actual engraving operations.

This is outrageous; it almost seems like a conspiracy!

I think you should contact the Aliespress for a result


Yesterday I received my RECI W8 150/180w tube. I installed it, then during the mirror alignment, I noticed the same issue Onedy was seeing, just… larger. In the middle of my cut table, the beam width is over 13mm. Naturally it widens the further the beam travels; but at its furthest point, it exceeds the 18mm focal lens. This is about 5x greater than the OMTech originally supplied Yongli A8s.

Is this normal? I looked through all the RECI and Cloudray manuals and ordering info however I do not see anything about beam width/diameter or recommended mirror/focal lens diameters

Do I just need a larger mirror/head set? The largest I could find is Cloudray’s G-Series with a 25mm focal lens. It just seems so abnormal as my last tube’s beam width was like 2-3mm max… this one is 13mm!

This machine has been down for 2 weeks and it is the heartbeat of my business. If anyone could help, I really really need it!

I dug deeper and found the below video with the same issue… The culprit was a faulty tube. I ordered directly from cloudray’s website… I need a replacement ASAP. We cannot afford any more downtime. I am sure there will be a process for this; I am willing, I just ask for timely action please.

Thank you,

It seems that you need change a larger lens

@Polaris I have checked with multiple experts and everyone is consistent that this is a faulty laser tube. Everyone believes the unfocused laser beam should be 2-3 mm… What makes you believe the 13mm-15mm output is acceptable? I took (2) more pictures below showing the 8mm burn before the first mirror.

I failed to understand the location of the laser beam. Based on the information you provided later, I guess there is something wrong with these two parts:

  1. Output lens
  2. The divergence angle of the input laser beam is too large

You need to replace a new tube.

Any resolve on this?

May be lower cost to cough up the money…

It’s sad they denied this, it’s also a bummer you didn’t buy it from their site. When I got my fiber, I found it lower cost elsewhere, but got it from their site, not ebay or elsewhere…

Let us know what’s happening… here or on the Lightburn Forum…


I understand the frustration you’re facing with the RECI W8 150/180w tube on your OMTech machine. Considering the challenges you’ve encountered, I highly recommend exploring Monport Lasers as a reliable alternative. Monport machines are renowned for their precision and performance, providing a robust solution to ensure the smooth operation of your business.

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Are you the advertising person from Monport?

He isn’t going to buy a new machine because of a failed tube… get a realistic.

I am also Satisfied of Monport machine. thank for your shared link.