Teach it by hand.
Guide the arm into position and build your weld sequence with FANUC’s visual timeline and LightBOT commands.
SERRA LASER / LIGHTBOT
YOUR SKILL.
ROBOTIC
PRECISION.
Meet LightBOT. The power of IPG LightWELD.
The control of a FANUC CRX cobot.
A new way to put your welding skills to work.
COBOT LASER WELDING, MADE EASY.FANUC CRX × IPG LIGHTWELD
PROVEN TECHNOLOGY.
ONE CONNECTED SYSTEM.
CRX COLLABORATIVE ROBOTS
LIGHTWELD LASER TECHNOLOGY
SYSTEM INTEGRATION01 / THE LIGHTBOT ADVANTAGE
Built around the way you weld.Take your craft.
Put it on repeat.
LightBOT brings FANUC motion control and IPG laser welding together. Teach the path, control your weld settings, and bring automation to the work you know best.
One pendant. Full control.
Access LightWELD presets, power, frequency, wobble width, and adaptive wire feed from the FANUC controller.
Keep your flexibility.
Automate with the cobot, then switch LightWELD back to handheld use in under five minutes.
HUMAN KNOW-HOW. ROBOTIC CONTROL.02 / FROM PATH TO PRODUCTION
You know the weld.
Show LightBOT.
A hands-on workflow brings your welding experience into a repeatable robot program.
- 01
Guide the arm
Move the cobot by hand or pendant to define your positions.
- 02
Build the sequence
Add positions and LightBOT commands to the FANUC timeline.
- 03
Dial in your weld
Set LightWELD parameters, validate your program, and run your part.
LIGHTBOT / PENDANT CONTROL
Your weld settings, right on the timeline.More control.
At every point.
The LightBOT app puts LightWELD commands alongside FANUC’s motion icons. Select presets, adjust the process along a weld, and manage wire feed from the robot pendant.
Choose an IPG factory preset or a user preset. Save multiple weld programs for parts that need different conditions.
Power and wobble, along the path
Change laser power, wobble width, and wobble frequency at programmed points. Adjust the process for corners, transitions, and the end of a weld.
Adaptive wire feed
Link wire speed to the robot’s tool speed and adjust the ratio for the weld. LightBOT includes calibration and named configurations for up to five wire feeders, including double-wire setups.
Independent start and stop control
Sequence laser and wire feed independently. Control gas timing and crater fill, and switch compatible auxiliary equipment such as a rotary or fume collector.
Cleaning and guide-beam controls
For LightWELD models with cleaning capability, select the metal, intensity, and cleaning width from the pendant. The Point of Weld command switches the guide beam for setup.
Line, stitch, and Rapid Fire commands
Configure the LightWELD line function for suitable stitch-welding applications. Rapid Fire supports laser firing during robot motion. Available functions depend on the LightWELD model and system configuration.
03 / CUSTOMER TESTIMONIAL
A customer’s experience with LightBOT.Hear it from
a LightBOT customer.
Hear a customer share their experience using LightBOT in their shop.
LightBOT / Customer testimonialView on Serra Laser Store ↗
Explore the video library
Programming, customer perspectives, and application demonstrations.
YOUTUBE / GET STARTEDLightBOT explained & programmedAn introduction to the system and programming workflow. ↗YOUTUBE / CUSTOMER INTERVIEWA LightBOT user’s perspectiveFANUC interviews a LightBOT system user. ↗VIMEO / COORDINATED MOTIONFANUC rotary welding at FabtechLightBOT and a coordinated rotary in action. ↗YOUTUBE / DOUBLE WIRE FEEDLightWELD 2000 XR + FANUC CRXCustomer footage of double-wire stainless steel welding. ↗VIMEO / ADDITIVE APPLICATIONInconel turbine repair testA test weld using the FANUC cobot for additive repair. ↗VIMEO / PROCESS SEQUENCEClean, weld, and post-cleanA rotary demonstration of cleaning and welding in sequence. ↗YOUTUBE / SAMPLE WELDINGSample welding with LightBOTSerra Laser Center’s LightBOT demonstration. ↗YOUTUBE / WIRE WELDINGCoordinated wire weldingSee wire welding with coordinated robot motion. ↗
04 / REAL APPLICATIONS
From Serra Laser’s ALAW 2026 presentation.Real parts.
Proven possibilities.
See how Serra applies cobot laser welding to demanding materials, complex shapes, and welds that need a clean finish.
304 STAINLESS / RETAIL DISPLAY
Tube to plate
Wire-feed laser welding addressed distortion and finishing requirements on a stainless display assembly.
Reported resultEliminated post-process finishing and consumable waste.
304 STAINLESS / INDUSTRIAL FRYER
Stainless wire basket
Wire feed with a weaving function bridged gaps in the wire structure while addressing the need for grinding.
Reported resultEliminated post-process finishing by eliminating spatter.
304 STAINLESS / FOOD PACKAGING
Complex stainless chute
Coordinated cobot motion followed intricate geometry to create a smooth weld joint.
Reported resultGood surface finish without distortion or post-process cleanup.
Application results reported in Serra Laser Center’s ALAW 2026 presentation. Results depend on the part, material, fit-up, and process settings.
THE COMPLETE WORKCELL
Automation.
With safety built in.
Laser welding requires a controlled work area. Serra’s integration approach combines enclosure design, door interlocks, and clear operator status indicators.
Explore LightSAFE and LightCELL layouts with access to your fixtures, room for the robot’s motion, and fume extraction planned around the process.
Discuss your workcellWORKCELL CONFIGURATIONS
Built around your floor and fixtures.
Examples from Serra’s LightBOT enclosure installations and demonstrations. Images retouched for presentation.
Table-mounted LightCELL
An enclosure arranged around the welding table, with sliding access doors.
Enclosed production cell
A dedicated work area with access for part loading, fixturing, and setup.
Walk-in enclosure
A larger layout with room for equipment, the welding table, and operator access.
Photos show setup and access configurations. Final guarding, interlocks, laser protection, and extraction are specified for the complete application.
LIGHTSTAGE / COORDINATED POSITIONING
Move the part.
Expand the weld.
LightSTAGE adds two FANUC servo axes for coordinated tilt and rotation. Together with the six-axis CRX, it brings eight-axis coordinated motion to your LightBOT system.
- Position the weldment for horizontal or vertical welding.
- Teach by hand with LightBOT or program offline with FANUC ROBOGUIDE.
- Work with LightBOT’s adaptive wire feed.
- Add to a new system or discuss a retrofit.
LS22030IN
30-inch tabletop
LS55040IN
40-inch tabletop
Siegmund or aluminum tabletop options provide a fixture base. Serra can confirm the positioner, load requirements, and integration for your parts.
05 / BUILD YOUR SYSTEM
Your parts. Your process.Automation that
fits your shop.
Start with your existing LightWELD or explore a new configuration. Serra helps match the robot, laser, and options to your application.
CRX-10iA
- Reach
- 49.2 in (1,249 mm)
- Wrist payload
- 22.0 lb (10 kg)
- Repeatability
- ±0.0016 in (±0.04 mm)
CRX-10iA/L
- Reach
- 55.8 in (1,418 mm)
- Wrist payload
- 22.0 lb (10 kg)
- Repeatability
- ±0.0016 in (±0.04 mm)
CRX-30iA
- Reach
- 74.4 in (1,889 mm)
- Wrist payload
- 55.1 lb (25 kg)
- Repeatability
- ±0.0020 in (±0.05 mm)
Robot images and specifications: FANUC CRX-10iA, CRX-10iA/L, and CRX-30iA. Imperial values are rounded. The CRX-30iA specifications shown are for its 25 kg payload configuration. Payload is measured at the robot wrist and includes tooling. Robot repeatability is distinct from finished-weld accuracy.
ALREADY HAVE A LIGHTWELD?
Add LightBOT.
Bring FANUC CRX automation to your existing IPG LightWELD with the LightBOT interface and integration package.
- FANUC CRX robot options
- LightWELD interface and software
- Installation and training
START YOUR NEXT CHAPTER
Find your configuration.
Explore LightBOT with the FANUC CRX and LightWELD model choices available through Serra Laser Store.
- CRX-10iA, CRX-10iA/L, or CRX-30iA
- LightWELD model options
- Optional LightSTAGE tilt-and-rotate positioner
Confirm equipment inclusions, application requirements, pricing, and lead time with Serra Laser.
Can I automate my existing LightWELD?
Yes. LightBOT can be retrofitted to existing IPG LightWELD systems. The integration includes software updates and the IPG cobot interface. Serra can confirm the package for your model.
Can I still use LightWELD by hand?
Yes. The system supports both cobot and handheld operation through its gun holder and mode selection interface. This lets you automate suitable welds while retaining handheld flexibility for other work.
Does LightBOT support wire feed?
Yes. Wire-feed configurations allow wire speed to be controlled from LightBOT commands on the FANUC pendant. Discuss the wire feeder and filler material that suit your application with Serra.
Can I add a rotary or positioning axis?
Yes. LightSTAGE adds two coordinated FANUC servo axes for tilt and rotation, giving the six-axis CRX an eight-axis system. The positioner supports hand teaching, offline ROBOGUIDE programming, and adaptive wire feed. Simple rotary start/stop control is also available for suitable applications.
Can LightBOT change settings during a weld?
Yes. The LightBOT app can change laser power, wobble width, wobble frequency, and wire-feed settings at programmed points. Preset commands let you reuse settings across different sections of a part.
Can LightBOT control laser cleaning?
On LightWELD models with cleaning capability, the LightBOT app provides cleaning controls on the pendant. You can select the metal, intensity, power override, and cleaning width as part of the program.
Which parts are a good fit?
Long straight seams and repeat parts are good starting points. Fixture quality, part fit-up, torch access, and production quantity all matter. A combination of cobot and handheld welding can suit parts with different access requirements.
Are a welding table and enclosure included?
It depends on the package. LightBOT is available as a retrofit or a broader system configuration, with table and enclosure options. Confirm the exact equipment included in your quote with Serra Laser.
LET’S TALK ABOUT YOUR NEXT WELD.
Put LightBOT
to work.
System integration by Serra Laser
FANUC Authorized System Integrator
Bring us your parts and your production goals.
We’ll help you explore the right LightBOT setup.