Spain retrofit case study
5kW CO2 mechanics, 6kW fiber production: a Barcelona retrofit case with the original machine foundation kept in service.
A field story from Spain: how a customer-owned high-end CO2 laser cutting machine was upgraded from a 5kW CO2 system to a 6kW fiber laser platform while preserving the machine body, motion system, and familiar operating workflow.
The project in one sentence
This was not a laser source swap. It was a full system retrofit.
The customer already owned a strong mechanical platform: a customer-owned TRUMPF TruLaser 5030 Classic CO2 machine that had been in service for about 18 years. The reason to retrofit was practical: reduce operating and maintenance cost, improve cutting efficiency, and keep a machine the operator team already understood.
The retrofit kept the valuable machine base and motion architecture, then integrated a new fiber laser source, chiller, cutting head, gas system changes, mechanical adapters, control signals, alarms, and safety interlocks into one working production system.
Project snapshot
Why retrofit?
The old machine still had the part that is hardest to buy again: a proven mechanical foundation.
| Customer question | Retrofit answer |
|---|---|
| Why not keep repairing the CO2 system? | The machine could still cut, but the old laser source and optical path were driving higher maintenance pressure, energy use, and operating cost. |
| Why not buy a new OEM fiber machine? | A new machine would mean high capital cost plus a longer purchasing, installation, and training cycle. Retrofit kept the familiar machine workflow and lowered the investment barrier. |
| What made this machine worth saving? | The machine body, motion system, and general mechanical condition still had real production value. Age alone was not the deciding factor. |
| What did the customer actually buy? | Not just a higher watt number. They bought lower maintenance pressure, more controllable cost, and a trusted machine returned to efficient production. |
Technical reality
CO2 to fiber conversion means the whole machine has to agree with the new laser system.
Control communication
The most sensitive work was making the original machine control logic, ready signals, start sequence, and alarm states cooperate with the new fiber system.
Safety logic
The goal was not to bypass safety for speed. Laser source state, chiller state, alarms, and machine readiness had to be coordinated carefully before cutting.
Mechanical adaptation
The new cutting head and original structure did not behave like a plug-in replacement. Mounting, spacing, gas route, and adapter work all mattered.
Gas and cooling
A CO2 machine and a fiber machine do not ask for the same gas, water, or optical path conditions. The support systems had to be reviewed as part of the retrofit.
On-site validation
Before dismantling too much, the team checked machine status, communication feasibility, alarms, and key variables so the project did not move blindly.
Customer cooperation
The local team supported disassembly and mechanical work, which helped turn a complex overseas retrofit into a controllable process.
The moment that mattered
When the first successful beam and cutting result arrived, the project changed from risk to proof.
For a retrofit like this, the emotional moment is not the day the new laser source is placed beside the machine. It is the moment the old machine accepts the new system, emits correctly, cuts stable samples, and the customer sees that the familiar equipment can produce like a modern fiber system.
According to the project notes, the customer was especially satisfied with the improved efficiency, lower operating cost, and the fact that the machine could keep working without forcing the team to learn an entirely new machine platform.
Watch the Barcelona retrofit in the workshop
This video shows the converted TRUMPF CO2 laser running as a 6kW fiber laser platform after the retrofit work described in this case study.
Watch Xiaodong's interview with Bob
This interview adds more background on the Spain retrofit project, including the customer decision, technical coordination, and practical lessons from converting an older CO2 laser into a fiber platform.
Buyer checklist
How to judge whether an old CO2 laser cutter is a good retrofit candidate
| Check item | What to confirm before quoting |
|---|---|
| Machine condition | Can the machine still run, move accurately, and cut with its existing system? |
| Mechanical value | Is the bed, gantry, motion system, and drive architecture still worth preserving? |
| Control access | Can the retrofit team understand machine signals, alarms, start sequence, and safety requirements? |
| Customer goal | Is the main need lower cost and better efficiency, or is the customer unhappy with the entire machine? |
| Site support | Can the customer provide photos of the nameplate, cutting head, control cabinets, current alarms, materials, and production needs? |
Brand and rights note
This is an independent retrofit case, not an OEM publication.
Brand names and model names are used only to identify the customer-owned equipment involved in the project. Sky Fire Laser is not affiliated with, sponsored by, or endorsed by TRUMPF.
Interview footage, shop-floor video, photos, subtitles, music, drawings, customer names, logos, and employee images should be published only when the relevant rights and permissions are confirmed. Confidential control logic, program details, drawings, and customer-sensitive information should stay out of public articles and videos.
For retrofit review
Have an older CO2 laser cutter that may still be worth saving?
Send the machine model, nameplate, control cabinet photos, cutting head photos, current cutting materials, thickness range, alarm history, and your production goal. We can help review whether a fiber retrofit is practical before you commit to a new machine purchase.
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