The right optics for your application
Regardless of whether you are welding, cutting, ablating, heat treating, or drilling, you can count on high-quality process results with robust focusing optics from TRUMPF. The optics can be used flexibly with the TRUMPF solid-state lasers and optimally adapted to the lasers. Through the modular toolkit from TRUMPF, the fixed optics can be adapted individually to your requirements.
TRUMPF focusing optics will impress you with their long service life and reliability.
A large number of options guarantees you the right solution for any task.
Various optic designs ensure system-specific adaptation to the work situation and environment.
The sophisticated technology means that customized seams can be created with an excellent seam quality.
Important work parameters can be set simply and specifically for the application.
BEO D25 Compare product |
BEO D35 Compare product |
BEO D50 Compare product |
BEO D70 Compare product |
RFO Compare product |
CFO Compare product | |
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Laser parameters | ||||||
Wavelength | - | - | - | - | - | - |
Power | up to 150 W (cw) | up to 4000 W (cw) | up to 8000 W (cw) | up to 8000 W (cw) | from 16000 W (cw) | up to 8000 W (cw) |
Numerical aperture | typ. 0.11 / max. 0.12 | typ. 0.11 / max. 0.12 | typ. 0.11 / max. 0.12 | typ. 0.11 / max. 0.12 | typ. 0.11 / max. 0.12 | typ. 0.11 / max. 0.12 |
Laser light cable type | LLK-A | LLK-D, LLK-B, LLK-A | LLK-D, LLK-B, LLK-A | LLK-D, LLK-B, LLK-A | LLK-D | LLK-D, LLK-B |
Optics configuration 1 | ||||||
Collimation | 90 mm | 35 / 80 / 100 mm | 35 / 100 / 125 mm | 150 / 200 mm | - | 200 mm |
Focal length | 48 / 60 / 90 / 135 mm | 70 / 100 / 140 / 200 / 300 mm | 150 / 200 / 250 / 300 mm | 100 / 150 / 200 / 300 / 400 / 600 mm | 600 mm | 100 / 150 / 200 / 300 / 400 / 600 mm |
Structural design | ||||||
Dimensions (W x H x D) | 25 mm x 198 mm x 25 mm (configuration example) | 166 mm x 313 mm x 62 mm (configuration example with camera monitoring and crossjet) | 128 mm x 407 mm x 100 mm (configuration example with camera monitoring and crossjet) | 189 mm x 524 mm x 78 mm (configuration example with camera monitoring and crossjet) | 123 mm x 446 mm x 176 mm (configuration example with camera monitoring and crossjet) | 163 mm x 519 mm x 114 mm (configuration example with camera monitoring and crossjet) |
Weight | 0.3 kg (configuration example) | 2.5 kg (configuration example with camera monitoring and crossjet) | 3.5 kg (configuration example with camera monitoring and crossjet) | 6 kg (configuration example with camera monitoring and crossjet) | 6.5 kg (configuration example with camera monitoring and crossjet) | 8.5 kg (configuration example with camera monitoring and crossjet) |
Compatibility | ||||||
Available lasers | TruPulse | TruDiode, TruDisk, TruPulse | TruDiode, TruDisk, TruFiber, TruPulse | TruDiode, TruDisk, TruPulse | TruDisk | TruDiode, TruDisk, TruPulse |
Available sensor system | - | - | VisionLine, CalibrationLine Power | VisionLine, CalibrationLine Power, welding depth sensor system | - | VisionLine, CalibrationLine Power |
Options | ||||||
Available options | 90° version, bifocal module, camera monitoring, sensor interface, 15 g version | 90° version, crossjet, shielding gas supply, bifocal module, camera monitoring, sensor interface, lighting, cartridge module, 15 g version | 90° version, crossjet, MVE nozzle, shielding gas supply, bifocal module, camera monitoring, sensor interface, lighting, cartridge module | 90° version, crossjet, MVE nozzle, shielding gas supply, bifocal module, sensor interface, lighting, cartridge module, protective glass monitoring unit, power measuring cartridge, pilot laser, compensation cartridge | Crossjet, camera monitoring, cartridge module, protective glass monitoring unit | 90° version, crossjet, MVE nozzle, shielding gas supply, bifocal module, camera monitoring, sensor interface, lighting, cartridge module, protective glass monitoring unit, power measuring cartridge, pilot laser, compensation cartridge |
BEO D25
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BEO D35
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BEO D50
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BEO D70
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RFO
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CFO
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Laser parameters | ||||||
Wavelength | - | - | - | - | - | - |
Power | up to 150 W (cw) | up to 4000 W (cw) | up to 8000 W (cw) | up to 8000 W (cw) | from 16000 W (cw) | up to 8000 W (cw) |
Numerical aperture | typ. 0.11 / max. 0.12 | typ. 0.11 / max. 0.12 | typ. 0.11 / max. 0.12 | typ. 0.11 / max. 0.12 | typ. 0.11 / max. 0.12 | typ. 0.11 / max. 0.12 |
Laser light cable type | LLK-A | LLK-D, LLK-B, LLK-A | LLK-D, LLK-B, LLK-A | LLK-D, LLK-B, LLK-A | LLK-D | LLK-D, LLK-B |
Optics configuration 1 | ||||||
Collimation | 90 mm | 35 / 80 / 100 mm | 35 / 100 / 125 mm | 150 / 200 mm | - | 200 mm |
Focal length | 48 / 60 / 90 / 135 mm | 70 / 100 / 140 / 200 / 300 mm | 150 / 200 / 250 / 300 mm | 100 / 150 / 200 / 300 / 400 / 600 mm | 600 mm | 100 / 150 / 200 / 300 / 400 / 600 mm |
Structural design | ||||||
Dimensions (W x H x D) | 25 mm x 198 mm x 25 mm (configuration example) | 166 mm x 313 mm x 62 mm (configuration example with camera monitoring and crossjet) | 128 mm x 407 mm x 100 mm (configuration example with camera monitoring and crossjet) | 189 mm x 524 mm x 78 mm (configuration example with camera monitoring and crossjet) | 123 mm x 446 mm x 176 mm (configuration example with camera monitoring and crossjet) | 163 mm x 519 mm x 114 mm (configuration example with camera monitoring and crossjet) |
Weight | 0.3 kg (configuration example) | 2.5 kg (configuration example with camera monitoring and crossjet) | 3.5 kg (configuration example with camera monitoring and crossjet) | 6 kg (configuration example with camera monitoring and crossjet) | 6.5 kg (configuration example with camera monitoring and crossjet) | 8.5 kg (configuration example with camera monitoring and crossjet) |
Compatibility | ||||||
Available lasers | TruPulse | TruDiode, TruDisk, TruPulse | TruDiode, TruDisk, TruFiber, TruPulse | TruDiode, TruDisk, TruPulse | TruDisk | TruDiode, TruDisk, TruPulse |
Available sensor system | - | - | VisionLine, CalibrationLine Power | VisionLine, CalibrationLine Power, welding depth sensor system | - | VisionLine, CalibrationLine Power |
Options | ||||||
Available options | 90° version, bifocal module, camera monitoring, sensor interface, 15 g version | 90° version, crossjet, shielding gas supply, bifocal module, camera monitoring, sensor interface, lighting, cartridge module, 15 g version | 90° version, crossjet, MVE nozzle, shielding gas supply, bifocal module, camera monitoring, sensor interface, lighting, cartridge module | 90° version, crossjet, MVE nozzle, shielding gas supply, bifocal module, sensor interface, lighting, cartridge module, protective glass monitoring unit, power measuring cartridge, pilot laser, compensation cartridge | Crossjet, camera monitoring, cartridge module, protective glass monitoring unit | 90° version, crossjet, MVE nozzle, shielding gas supply, bifocal module, camera monitoring, sensor interface, lighting, cartridge module, protective glass monitoring unit, power measuring cartridge, pilot laser, compensation cartridge |
The technical data of all product versions as a download.

BEO D25
BEO D25 are the smallest optics in the range and the best suited for laser welding applications involving low laser power.
Laser device: TruPulse
Laser power: max. 200 W

BEO D35
BEO D35 focusing optics are used for welding with pulsed or cw solid-state lasers up to the kilowatt range, and can also be fitted with a CCD camera.
Laser devices: TruDisk, TruPulse, TruFiber, TruDiode
Laser power: max. 4 kW

BEO D50
With the new BEO D50 processing optics, TRUMPF has developed robust and compact optics which can be used up to a power of 8 kW. The crossjet function has been optimized and expanded to include new functions such as monitoring for gas, water flow, and temperature.
Laser devices: TruDisk, TruPulse, TruFiber, TruDiode
Laser power: max. 8 kW

BEO D70
BEO D70 focusing optics show their strengths during laser welding involving large working distances and small focal diameters.
Lasers: TruDisk, TruDiode, TruFiber, TruPulse
Laser power: 8 kW and higher

CFO
With the controlled focusing optics of the CFO line, parameters which are relevant to the process, such as water temperature and shielding gas flow, are recorded at all points during processing. Complete with protective glass monitoring, these processing optics are particularly suitable for automated processes.
Lasers: TruDisk, TruDiode, TruFiber, TruPulse
Laser power: max. 8 kW

RFO
The RFO high-performance mirror optics are optics for the lowest thermal shifts. They allow for consistent, reproducible application results, even with a high laser power.
Laser: TruDisk
Laser power: 16 kW and higher

BEO ring optics
The focusing optics for simultaneous welding of plastics with ring focus is optimally suited for highly productive systems. The ring diameter is calculated by means of an assembly in the BEO modular system, in a customer-specific manner. This allows radial or axial weld seams to be achieved without moving the component or the laser beam.
Laser device: TruDiode
Laser power: < 1 kW
In addition to a range of processing optics, TRUMPF also offers you the right machines and beam sources. This allows you to find exactly the right combination for your application and requirements – all from a single source. When it comes to beam sources, TRUMPF offers all relevant lasers for the industry. You can rely on our experts, trust us to always have the best solution in mind for your production tasks, and know that we will advise you independently of any preferred technologies.
You can adapt your focusing optics to any job using the large number of options. You can also receive special optics for laser metal deposition with powder feed, or for linear laser spots.

The motor positioning of the collimator lens means that the focus point can be conveniently set in the Z direction. Modifications can be entered either directly by way of the laser control system TruControl or by way of an external machine control. Applications for which the focal position must be frequently changed can therefore be performed without additional effort.

The CCD camera monitors the process at the processing point, and enables convenient setup of the laser process. It is the basis for process monitoring.

During operation and when changing the protective glass, the seal and interior ventilation of the protective glass prevent contamination. Changing the protective glass itself functions quickly and easily without tools. In place of the protective glass cassette, you can also insert a power measurement cassette. This enables you to easily check the laser power.

Crossjet is a compressed air flow that runs orthogonally to the laser beam. It diverts contamination and spatter, extending the protective glass service life. The optics are more robust and the laser process is more reliable.

To make your welding process more efficient, you can add, in addition to the crossjet, the airflow from the metal vapor effect nozzle (MDE nozzle). The airflow keeps the metal vapor torch that arises while welding constant and therefore the energy brought into the material. This stabilizes the welding depth for precise laser processing. You also reduce your costs through a longer service life for your protective glass.

For high-quality welding results, a separate nozzle supplies shielding gas. The welding seam thereby oxidizes less. You can choose from various nozzles: aerator nozzle, linear nozzle, or multiple pipe nozzle.
This product range and information may vary depending on the country. Subject to changes to technology, equipment, price, and range of accessories. Please get in touch with your local contact person to find out whether the product is available in your country.
Footnotes- Other optics configurations are available on request.
- Other wavelengths are available on request.