Titan and Titan Pro Laser Heads (Standard/Optional Configurations and Replacement Overview)

Titan and Titan Pro Laser Heads (Standard/Optional Configurations and Replacement Overview)

Preface

This article describes the standard and optional laser heads (lens tubes) available for the TITAN and TITAN Pro series machines.
It also explains how focus settings differ between single-source and dual-source systems, and summarizes the replacement concept for the laser head or lens tubes/barrels.

1. Titan Series Laser Head Options:

The Titan machines support 4 lens tube options:

  • Standard 2.5-inch lens tube
  • Optional 1.5-inch lens tube
  • Optional 2.0-inch lens tube
  • Optional 4.0-inch lens tube
Across all four lens tubes, the nozzle-to-material distance is designed to be consistent (about 5mm). As a result, autofocus works with all four lens tube options.
The focal distance value input for Titan autofocus is about 3 mm; minor variations between devices are normal, and the standard focal distance value is tested and preset on the machine before shipping. 

2. TITAN Pro Series Machines Laser Head:

Titan Pro machines are currently supplied with a standard 3-inch dual-wavelength laser head designed for both CO2 and fiber laser sources.


2.1. Focus depth settings

Because CO2 and fiber beams have different effective focal positions, the DSP controller requires two separate Focus Depth values (Laser 1 and Laser 2):

· Laser 1 (CO2 RF): approximately 5.5 mm

· Laser 2 (Fiber): approximately 0.5 mm

These values are pre-configured before shipment and may vary slightly from machine to machine.


2.2. Automatic focus compensation in dual-laser jobs

When processing a file that contains both CO2 and fiber layers, the system uses the CO2 RF focus as the reference for autofocus, and it will automatically compensate for the bed height when switching to fiber layers. This ensures accurate focusing for both laser sources without manual intervention during the job.

Typical nozzle-to-material distances during a dual-laser job:

· CO2 RF (Laser 1): approximately 8 mm

· Fiber (Laser 2): approximately 3 mm

2.3. Using single-source lens barrels and lenses

TITAN Pro machines can also accept single-source (CO2 or fiber) lens barrels and lenses; however, autofocus is only supported when operating with the correct laser source.

If you install Titan-series CO2 lens barrels and lenses on a TITAN Pro machine, you must re-verify the optimal focal distance for the new head and then update the corresponding Focus Depth value in your software (RDWorks, LightBurn, or LaserMaker, depending on your workflow and controller support) if it does not exist yet (Titan Pro machines shipped before late December 2025 did not include the tested CO2 ); if your machine has already input the single CO2 focal distance value, before using please switch to the correct lens (barrel) from touch panel: Lens Change Feature.

Notes
When using a single-wavelength focusing lens (Fiber or CO₂) on a dual-source laser machine, ensure that only the matching laser source is enabled.
● Fiber lens → Fiber laser only (~1 µm)
● CO₂ lens → CO₂ laser only (10.6 µm)
Do NOT activate a mismatched laser source, as this can cause rapid overheating and permanent damage to the lens. 
Always verify that the selected laser source matches the installed focusing lens before operation.

For instructions on determining the optimal focal distance for a lens and barrel combination, refer to the Thunder Knowledge Base article for focus testing:


3. How to replace the different laser heads

The laser head uses a precision slot design for positioning rings. This provides repeatable installation alignment for reliable focusing and camera-assisted workflows.

Soft silicone rings can be removed quickly when required. After removing the rings, up to four different FL barrels can be installed at higher mounting positions, which helps accommodate thicker materials when using the pass-through door.

For step-by-step replacement instructions, refer to the official replacement procedure in the Thunder Knowledge Base:

Notes
Silicone rings are added to the lens tube(of the same type) as an endstop to keep the laser head installation height consistent (for example, after cleaning the lens or replacing a lens tube). This ensures that after autofocus, the distance between the work bed (material surface) and the camera matches what the calibration was done with, preventing any impact on camera and position accuracy. 

So, if you are using a camera, please make sure to use silicone rings to fix the laser head height.

Also, pay attention to the installation position of the silicone rings—incorrect placement may cause the camera to be out of focus.


                       Correct installation
                           Incorrect installation

 
              Properly focused condition

Out-of-focus condition




 In addition, there is about a 3 mm difference in the actual distance from the nozzle tip to the material after focusing between single-light and dual-light lens tubes. This physical distance difference can affect camera focus and engraving accuracy. When testing different types of lens tubes, please save the corresponding auto focus values and camera calibration files.

The method for calibrating the top camera and the movable camera is as follows:
Complete Guide to Calibration and Use of TITAN Series Top Camera（New）  


If you need to process thicker materials using the pass-through door, it is OK to remove the silicone rings and push the lens tube to the highest position. This allows proper focusing during thick material processing. Kindly note that the distance from Camera(s) to material may change in this case, it is recommended to test and save a new camera calibration file for this specific vision application if you find cutting or positioning deviation.

NotesPlease keep the silicone rings safely in case you need to use them again.


Still need help?

For specific technical questions or help requests, please open a Ticket with picture or video, so our Support team can assist you ASAP.

For the information provided in the ticket, please refer to this link：

Help Tech Support Troubleshoot Faster


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