Mobile Laser Welding Machines: Repair Directly at the Workpiece
A mobile laser welding machine is a wheeled 5-axis complete system that enables laser welding to be carried out directly at the workpiece—regardless of its size, weight or installation situation. The system is brought to the component: repairs, contour build-up and production welds are performed precisely on site, without dismantling or transporting the workpiece.
With mobile laser welding systems from Sigma Laser, you can process large or fixed components efficiently and flexibly directly at your location.
Mobile laser welding machines offer key advantages for repair, production and maintenance. They save time and costs by eliminating the need to remove large components.
Repair without removal
Laser welding is carried out directly on the installed workpiece. This removes the need for complex dismantling and transport. Downtime is reduced, increasing productivity in manufacturing and maintenance.
No limits on workpiece size
The mobile laser welding system is brought to the component. This allows even very large, heavy or fixed workpieces to be processed, which are unsuitable for stationary systems.
360° mobility, single operator
All mobile laser welding machines from Sigma Laser are wheeled and can be easily positioned by one person. This enables flexible use in confined or changing work environments.
5-axis CNC precision
The integrated 5-axis CNC kinematics (X·Y·Z·C·D) allows precise, repeatable laser welding on complex geometries – even in hard-to-reach areas.
Sigma Laser offers three mobile laser welding machines for different requirements. All systems feature 5-axis CNC, Super Pulse Technology, and programme memory.
360° mobile – German Design Award 2025
Sineo Light is the mobile laser welding machine for repair and production on medium to large tools. The system is suitable for fine welding tasks and pinpoint repairs in toolmaking, mould making, and maintenance.
- Nd:YAG · 1070 nm
- 220–500 W · Pulse energy up to 170 J
- Spot 0.2–2.0 mm
- Travel range 600 × 600 × 400 mm
Fibre laser for high cycle rates
Sineo Fibre combines the advantages of a mobile laser welding machine with modern fibre laser technology. Ideal for applications with high cycle rates, fine seams, and variable pulsed or continuous operation in series production.
- Ytterbium fibre laser · 1070 nm
- 300–600 W · Pulse energy up to 60 J
- CW and pulsed · up to 1,000 Hz
- Spot 0.1–2.0 mm
Heavy-duty for large tools
Sirius Light is designed for heavy tools and large components. This mobile laser welding machine delivers high pulse energies and is particularly suited to tool and mould making, as well as shipbuilding applications.
- Nd:YAG · 1064 nm
- 60–500 W · Pulse energy up to 170 J
- Spot 0.2–2.0 mm
- Travel X 200 · Y 200 · Z 300 mm
The choice of mobile laser welding machine depends on material, geometry and process requirements. The comparison highlights the key differences between Sigma Laser systems.
| Feature | Sineo Light | Sineo Fibre | Sirius Light |
|---|---|---|---|
| Beam source | Nd:YAG | Ytterbium fibre laser | Nd:YAG |
| Wavelength | 1070 nm | 1070 nm | 1064 nm |
| Power | 220–500 W | 300–600 W | 60–500 W |
| Pulse energy | up to 170 J | 30/45/60 J | up to 170 J |
| Operating mode | pulsed | CW and pulsed | pulsed |
| Spot diameter | 0.2–2.0 mm | 0.1–2.0 mm | 0.2–2.0 mm |
| Working head reach | up to 1,830 mm | up to 1,830 mm | up to 1,830 mm |
| Weight | 350–475 kg | 360 kg | 210–475 kg |
| Typical use | Tool and mould making, repair | Series production, fine seams | Heavy-duty, large tools, shipbuilding |
All three mobile laser welding machines feature 5-axis CNC, Super Pulse Technology and programme memory.
Mobile laser welding systems are ideal when large or fixed components need to be processed. Stationary systems offer advantages for series production and automated processes.
Mobile laser welding machines are suitable for very large, heavy or permanently installed workpieces. Stationary systems are the choice for transportable parts that can be processed in the cabin.
If the workpiece is difficult to access or permanently installed, a mobile laser welding machine is recommended. Stationary systems require a fixed workstation.
Mobile laser welding machines can be used flexibly at changing locations. Stationary systems are designed for a fixed production area.
For automated processes and high production volumes, stationary laser welding systems with automation solutions such as Simass are more suitable.
For frequently changing workpieces and individual parts, mobile laser welding machines offer advantages. For series production, a stationary solution is recommended.
Further information on the stationary systems Sidanus Light, Sidanus Fibre and Siega Fibre is available on the product pages – the laser welding buying guide explores the criteria in detail.
Mobile laser welding systems from Sigma Laser are used across various industries and applications. They enable precise welding work directly at the site of use.
Tool and Mould Making
In tool and mould making, mobile laser welding machines are used for repairs, modifications and contour build-ups directly on large or fixed tools. High precision and flexibility are crucial for minimising downtime. Learn more: Laser welding in tool and mould making.
Tool repair and contour build-up
Mobile laser welding machines enable rapid repair and targeted contour build-up on damaged or worn tools. Processing takes place directly at the site of use, with no need for removal or transport. Practical example: On-site mould repair.
Large components and shipbuilding
For large components, machine parts or applications in shipbuilding, the mobile laser welding machine offers advantages in repair and production. Even hard-to-reach areas can be processed directly. See also Laser welding in shipbuilding.
Maintenance and service operations
In maintenance and on-site service operations, mobile laser welding machines enable fast, precise repairs to production equipment, tools or machinery – with minimal downtime. For SMEs: mobile laser welders in toolmaking.
Mobile laser welding machines differ in six measurable aspects. These criteria support the selection of the right system.
| Criterion | What to consider | Sigma Laser systems |
|---|---|---|
| Beam source & pulse energy | Choose between Nd:YAG or fibre laser and check pulse energy, peak power and frequency for your application. | Sigma Laser: Nd:YAG or ytterbium fibre laser, pulse energy up to 170 J, peak power up to 13 kW. |
| Axes & reach | Consider the number of axes, CNC kinematics and working head reach for complex geometries. | Sigma Laser: 5-axis CNC, working head reach up to 1,830 mm. |
| Workpiece size & weight | Check if the system can be flexibly positioned at large or heavy components. | Sigma Laser: Unlimited workpiece size and weight, system brought to the component. |
| Mobility concept | Compare manoeuvrability, single-person operation and positioning options in the production environment. | Sigma Laser: 360° manoeuvrable, can be positioned by one person. |
| Process monitoring & control | Consider observation optics, control system and programme memory for reproducible results. | Sigma Laser: Leica 10× optics, Sigomatic control, programme memory (50–100+ programmes). |
| Service, training & warranty | Check operator training, service options and warranty coverage from the manufacturer. | Sigma Laser: Certified training, extended warranty, lamp breakage protection as options. |
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A mobile laser welding machine is a portable 5-axis workstation that is positioned directly at the workpiece. It enables laser welding of large or fixed components on site and offers a flexible alternative to stationary systems, especially in tool and mould making.
No — Sigma’s mobile laser welding machines are 5-axis CNC workstations on wheels with Leica 10× optics and program memory, positioned at the workpiece. A handheld laser welder is a hand-guided gun without CNC path control. The two systems differ fundamentally in precision, automation and application scope.
For tool and mould making, mobile laser welding machines with 5-axis CNC, high pulse energy and flexible reach are ideal. Sigma Laser offers suitable systems for repair, modification and new production with Sineo Light, Sineo Fibre and Sirius Light.
The cost of a mobile laser welding machine depends on the beam source, laser power, number of axes, equipment and training package. After individual consultation, Sigma Laser will provide a tailored quotation to match your requirements.
A mobile laser welding machine is suitable when large or heavy components need to be processed directly at their location. Stationary systems are recommended for series production of smaller parts. Sigma Laser will advise you on the right solution for your production needs.
Yes, mobile laser welding machines from Sigma Laser are designed to operate directly at the workpiece. There are no limits to workpiece size or weight, as the system is brought to the component rather than the other way around.
Unlock the full potential of laser welding—tailored to your needs. Whether you are starting a new production line or upgrading existing systems, our modular approach adapts to your specific requirements.
No compromises. No limitations. Only precision-engineered systems that grow with your business.
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- Start your configuration – Customise your system based on your application, budget and future plans.
- Speak to an expert – Receive tailored advice from our laser specialists with many years of industry experience.
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