Siega Fibre | Compact Nd:YAG Laser Welding System for Confined Spaces

Name: Siega Fibre | Compact Nd:YAG Laser Welding System for Confined Spaces | Sigma Laser
Brand: Sigma Laser

The Siega Fibre is a compact, high-performance laser welding system with a fiber laser source, specifically developed for applications in confined or difficult-to-access areas – such as ship engine rooms, aerospace structures, or complex tool and mold repair.

The integrated 3-axis welding head enables precise work even in demanding geometries and ensures maximum accessibility without compromising precision or laser performance.

By combining a compact design with mobile capability, the Siega Fibre allows ergonomic operation both in mobile use and in stationary applications.

The Siega Fibre is a solution for precise laser welding wherever compact, high-performance, and user-friendly systems are required.

Quick Access to Sections:

Equipment

Three-Axis Motorized Laser Head
Integrated X, Y, Z travel (75 × 150 × 100 mm) for precise control in complex geometries.
Twin Lamp Cavity (TLC) Laser Resonator
Offers extended lamp lifetime, excellent beam stability, and lower operational cost.
Leica 10× Stereo Microscope
High-resolution viewing with 100 mm working distance and compatibility with eyeglasses.
Motorized Beam Expander
Adjusts focal length for varied welding depths and diameters without manual intervention.
Mobile Base with Swivel Casters
The system is mounted on a compact, stable, and mobile platform for in-situ operation.
Magnetically Detachable Display Panel
Enables ergonomic access to laser controls even when working in tight or elevated positions.
Laser Power Options
Configurable between 120 W and 160 W, with pulse shaping included for fine-tuning weld quality.

Accessories

Remote Foot Pedal: Hands-free gas and laser control for operator convenience.
Rotary Worktable Module: Enables circular welds or component rotation (manual or motorized).
Remote Diagnostics Module: VPN-enabled unit for Sigma’s support team to access system status.
Wire Feeder Unit: Seamless integration for precision filler wire applications.
Magnetic Clamping System: Fixes components without traditional jigs — ideal for quick setups.
External Cooling Unit: Recommended for continuous, high-power operation in warm environments.

Software & Control System

Sigomatic Software (Standard):
A robust display-based interface for full control of laser parameters, pulse settings, and shape memory (up to 50 programs). Enables teach-in functionality for complex geometries without coding.
Sigomatic Pro (Optional):
Advanced software package for PC-based control. Supports G-code integration, multi-axis path planning, real-time monitoring, and remote updates.
User Profiles & Password Protection:
Limit parameter editing and access for unauthorized users, ideal for shared workstations.

Advanced Functional Capabilities

Compact Welding Head with Detachable Cables
Designed for deployment in narrow spaces such as engine blocks, aerospace frames, or internal mold contours.
Joystick-Controlled Axis Movement
Allows precise navigation of the welding head, even from awkward angles.
Automatic Gas Control System
Seamless synchronization of shielding gas (argon or nitrogen) with foot pedal or system logic.
Built-in Memory for Repetitive Jobs
Store and recall welding presets for standardized quality and process repeatability.

Ergonomic features of the stationary system + Flexibility of a mobile system

The Siega Fibre comes factory-equipped with an optimized package of components designed to support high-precision laser welding in space-restricted environments. The standard configuration includes above options.

The Siega Fibre offers an ideal balance of compact design and powerful features, making it a go-to solution for mobile, high-precision laser welding. With modular upgrades, intelligent controls, and field-proven optics, it adapts to your most challenging welding scenarios.

Engineered for High-Precision Welding in Tight Spaces

The Siega Fibre is designed to deliver exceptional welding accuracy in space-restricted industrial environments. Unlike bulky systems that are limited by their footprint, Siega Fibre brings together a compact frame, integrated 3-axis movement, and powerful Nd:YAG laser output to serve industries like aerospace, shipbuilding, and mold repair with uncompromising performance.

Whether you’re welding fine tool steel contours or reinforcing internal engine components, Siega Fibre ensures precise results with repeatable parameters, real-time control, and support for 120 W and 160 W configurations.

The table outlines its most important technical parameters — covering laser performance, motion system, optics, cooling, and more.

1. Laser Performance

Feature	Specification
Laser Type	Diode-pumped fiber laser
Output Power Options	300, 450 Watt
Max. Pulse Energy	30 J (300 W), 45 J (450 W)
Pulse Peak Power	Up to 4.5 kW
Pulse Duration	0,05 – 50 ms
Repetition Rate	0,5 – 100 Hz
Beam Diameter (adjustable)	0,2 – 2,0 mm
Pulse Shaping	Super Pulse Technology
Beam Expander	Motor-driven; adjustable focal depth
Laser Cavity Type	Twin Lamp Cavity (TLC) for long lamp life

2. Motion & Positioning

Feature	Specification
Integrated Axes	Motorized X, Y, Z axes
Travel Distances	X: 75 mm, Y: 150 mm, Z: 100 mm
Welding Head	Compact, detachable, joystick-controlled
Part Height Capacity	Up to 450 mm
Rotary Modules	Optional (manual or motorized rotation)

3. Optical & Viewing System

Feature	Specification
Observation Optics	Leica 10× Stereo Microscope
Working Distance	100 mm
Eyepiece Compatibility	Wide-angle, glasses-friendly
Camera (Optional)	Laser-safe camera module
Illumination	LED ring light for weld zone clarity

4. Cooling & Power Supply

Feature	Specification
Cooling System	External water/air (as per setup)
Coolant Monitoring	Manual + software alerts
Power Requirements	380 V / 3 Ph / 50 Hz
Energy Efficiency	Optimized lamp control, standby mode

5. Software & Interface

Feature	Specification
Standard Software	Sigomatic (rotary encoder + display panel)
Advanced Option	Sigomatic Pro (PC-based, G-code enabled)
Program Memory	50 standard programs (expandable to 100+)
Display Panel	Magnetically detachable, ergonomically mounted
Remote Diagnostics	Supported (VPN connection optional)

6. Dimensions & Weight

Feature	Specification
System Dimensions	756 mm × 751 mm × 1371 mm
Net Weight	~350 kg
Mobile Platform	4 swivel casters with locks
Recommended Floor Space	~1.5–2.5 m² (for safe operation & maintenance)

The Siega Fibre delivers high-precision laser welding in the most confined spaces — offering mobility, power, and modular control in a compact form. With its TLC resonator, beam shaping, integrated axes, and flexible software, it’s one of the most efficient mobile laser welding units available on the industrial market today.

Optimized for Compact Spaces and Precision Welding

The Siega Fibre is engineered for environments where space is limited, but expectations are high. With its compact form factor, detachable laser head, and integrated multi-axis control, it excels in applications that require precision, accessibility, and mobility — without compromising welding performance. From marine engine rooms to intricate aerospace frames, Siega Fibre brings laser precision to places most systems can’t reach.

laser welding in aerospace manufacturing

Aerospace Industry

The aerospace sector relies on tools that combine lightweight construction, precise weld seams, and the ability to work with sensitive alloys. Siega Fibre offers high energy density in a compact frame, enabling detailed welding of titanium, Inconel, and stainless steel components in complex assemblies. Its SPT-ready configuration ensures strong welds with minimal distortion on high-stress aerospace parts.

Tool and Mold Maintenance

For toolmakers and mold technicians, Siega Fibre brings the flexibility of mobile laser welding to shop floors where downtime is costly. Its precise pulse control, small focus diameter, and programmable axis movement allow seamless repair of tool edges, cavity walls, and hard-to-reach insert zones — even on mounted or in-use tools.

Shipbuilding & Marine Engineering

Marine components often require repair or reinforcement deep within ship hulls, engine compartments, or piping structures. Siega Light’s compact and mobile design allows technicians to move the unit directly to the repair site. Its joystick-controlled laser head and long working distance optics enable safe and accurate welds in tight, hard-to-access areas — minimizing disassembly and vessel downtime.

Service & Maintenance Departments

For industrial maintenance teams, especially those working in large facilities or on-site at customer locations, Siega Fibre offers a plug-and-play welding solution. Its modular architecture and transportable design mean it can be quickly deployed, set up, and operated with minimal infrastructure. Ideal for emergency repairs, system retrofitting, or field servicing of large assets.

Key Advantages Across Applications:

Compact Footprint, Maximum Reach
Easily fits into tight spaces such as ship engine compartments, mold cavities, or aerospace assembly lines — without sacrificing range or functionality.
High Pulse Energy for Deep & Precise Welds
Up to 100 J of energy with sharp pulse shaping ensures reliable welding on tool steels, titanium, and nickel alloys — even in thin-wall or thermally sensitive components.
Mobile and Ergonomic for On-Site Repairs
Mounted on swivel casters with a detachable control panel and joystick-guided laser head, Siega Fibre goes wherever your parts are — no need to disassemble large machinery.
Three-Axis Precision Movement
The integrated X, Y, Z axis system allows fine-tuned positioning even in difficult geometries, reducing manual rework and boosting repeatability.
Plug-and-Play Operation
Rapid deployment in any facility — just connect power and cooling, load a welding program, and begin. Ideal for field service technicians or toolmakers on tight deadlines.
Advanced Optics for Operator Comfort
Equipped with Leica stereo microscope, anti-reflective optics, and LED ring lighting — enabling precise, low-fatigue work during long repair or production cycles.
Future-Proof Software Architecture
From intuitive Sigomatic controls to full G-code programming in Sigomatic Pro, Siega Fibre grows with your automation and quality assurance needs.

Adaptable Laser Welding Built Around Your Workflow

Every production environment has unique challenges — and the Siega Fibre is designed to meet them head-on with a modular, customizable architecture. Whether you’re looking to extend reach, enhance automation, or fine-tune precision, this system offers a wide range of configuration options to fit your specific application and industry.

Available Customization Options

Laser Power Configurations

Choose between 120 W or 160 W Nd:YAG laser output depending on your energy requirements, welding material, and heat tolerance.

Optional Axis Extensions

The standard 3-axis system (X, Y, Z) can be customized with rotary or tilt-axis modules, ideal for circular seams or complex part geometries.

Advanced Software Upgrades

Upgrade to Sigomatic Pro for PC-based control, G-code compatibility, teach-in programming, and full CNC motion planning. Enables greater automation and integration into production lines.

Cooling Systems

Swap or upgrade the external cooling unit to match ambient conditions or prolonged operating sessions. Both water- and air-based options are available.

Control Panel Configuration

Opt for a fixed or detachable magnetic display panel based on workspace layout and operator preference.

Camera Integration

Add a laser-safe camera module for monitoring and documentation — ideal for quality assurance or training purposes.

Workholding & Clamping Systems

Custom magnetic or vacuum-based fixtures can be integrated for non-invasive part positioning — perfect for delicate or precision-critical components.

Language Packs & User Profiles

Siega Fibre supports multi-language operation (English, German, French), and user profile restrictions for team-based environments or regulated industries.

Conclusion

With a flexible feature set and upgrade-ready hardware, Siega Fibre grows with your business — from initial deployment to advanced industrial integration.

Answers to common questions about the Siega Fibre laser welding system

What makes Siega Fibre different from other laser welding systems?

Siega Fibre is specially designed for tight spaces and mobile welding tasks. Its detachable welding head with built-in X, Y, Z axes allows operators to reach complex or enclosed components without repositioning the whole system. It's ideal for industries like marine, aerospace, and mold repair.

Is Siega Fibre portable enough for on-site repairs?

Yes. With its compact footprint, swivel casters, and detachable display, Siega Fibre is fully mobile. It can be wheeled directly to the job site — even inside engine compartments or production floors with limited space.

What materials can Siega Fibre weld?

Siega Fibre supports a wide range of industrial metals including tool steels, stainless steel, titanium, Inconel, and other engineering-grade alloys. Pulse shaping and spot size control ensure precise, clean welds even on heat-sensitive components.

Does it require programming skills to use Siega Light?

Not at all. The system includes Sigomatic software, which uses a graphical interface for easy parameter setup. Optional Sigomatic Pro enables G-code automation for advanced users, but basic operations require no programming experience.

Can I upgrade laser power after purchase?

Yes. The modular design allows you to start with a 120 W version and later upgrade to 160 W without replacing the entire machine. The core hardware and optics are built to support scalable power levels.

What kind of maintenance does the system require?

Routine tasks include cleaning optics, checking coolant levels, and inspecting axes for smooth movement. The system is also compatible with remote diagnostics and service plans offered by Sigma Laser.

At Sigma Laser, our commitment to excellence doesn’t end at delivery. The Siega Fibre comes with a full suite of after-sales services designed to ensure optimal performance, operator confidence, and long-term value from your investment. Whether you’re a small workshop or a multinational manufacturer, our support ecosystem keeps your production running smoothly.

Performance Optimization Consulting

For customers with high-throughput needs or complex applications, we offer:

Process auditing
Automation optimization
Custom software macros
Fixture design and integration consulting

Installation & Commissioning

Our team provides on-site setup, system calibration, and full integration into your existing workspace or automation line. We ensure everything is optimized from day one — including safety checks, software configuration, and trial welds.

Spare Parts & Consumables

We maintain a well-stocked inventory of Replacement lamps, Optical components, Cooling units and Wear parts. Fast shipping worldwide ensures minimal downtime.

Remote Diagnostics & Global Support

From preventive maintenance to rapid troubleshooting, our global service team keeps your laser welding equipment running with minimal downtime through on‑site visits and secure remote diagnostics.

Operator Training & System Onboarding

Hands‑on training programs give your staff the skills to operate, maintain, and optimize Sigma laser welding systems safely and productively right from day one.

Extended Warranty & Lamp Breakage Protection

Enjoy long‑term peace of mind with comprehensive warranty coverage—including exclusive lamp break protection—for all light‑pumped laser welding systems.

Regular maintenance is essential to ensure the Sineo Light operates at full performance, maintains consistent weld quality, and minimizes downtime. Thanks to its modular design and industrial-grade components, this system is engineered for long service life with minimal maintenance overhead.

Below is a recommended preventive maintenance schedule along with practical tips to maximize uptime and laser longevity.

Daily Maintenance Tasks

Clean the microscope lens and protective glass with approved optical wipes.
Inspect the Weld Area:
Check the workspace for spatter, residue, or debris that could affect weld quality or part stability.
Ventilation Check:
Ensure that airflow vents are unobstructed for proper heat dissipation.
Check foot pedal and rotary controls for smooth operation.
Ensure secure power connections and that the emergency stop is operational.

Weekly Maintenance

Laser Cavity Inspection:
Visually inspect the cavity area for dust or discoloration. Avoid direct contact unless cleaning is needed.
Cooling System Check:
- Verify water levels in the internal cooling system.
- Inspect for any leaks or unusual noises.
- Clean or replace filters as needed.
Foot Pedal and Rotary Controls:
Test response to ensure proper input for automated functions.
Axis motion check: Run the motorized X/Y/Z axes to detect noise or resistance.
Cable and connector test: Ensure no signs of wear, heat damage, or looseness.

Monthly Maintenance

Replace or Clean Filters:
Air filters and water filters (if applicable) should be cleaned or replaced to maintain stable temperatures.
Software Backup & Updates:
Backup welding programs and log data; check for available firmware or Sigomatic software updates.
Check Fasteners:
Tighten any mechanical fasteners on the worktable or rotary devices to avoid misalignment.

Long-Term Preventive Maintenance

Lamp Life Monitoring:
Each lamp has a defined number of pulse cycles (typically ~2–4 million). Use the control interface to track usage and plan replacement in advance.
Laser Rod Inspection:
Over time, the rod may become slightly misaligned or coated. Periodic inspection by a certified technician is advised.
Axis calibration: Precision check and tuning of motion system to avoid offset or vibration.
Inspect safety systems: Verify function of interlocks, emergency stops, and casing seals.
Annual Service Visit (Optional):
Consider a certified Sigma technician visit annually to recalibrate optics, update software, and perform full diagnostics.

Pro Maintenance Tips

Always use Sigma-approved cooling fluids to prevent mineral buildup.
Never clean optics with alcohol or general glass cleaner.
Never touch optics or lenses with bare fingers. always use lint-free gloves or tools.
Store spare parts (lamps, filters, optics) in a clean, dry, static-free environment.
Keep a maintenance logbook to track interventions and lamp usage.
Enable system alerts via the software to receive early warnings about water levels, temperature, or lamp errors.

Summary:

Consistent preventive maintenance is the key to long-lasting laser performance.
The Sineo Light is engineered to minimize service intervals and maximize uptime, but routine care ensures that its precision, safety, and productivity remain uncompromised. Whether you’re running small repairs or high-volume production, these tasks keep your laser system performing like day one.

Laser welding is a powerful industrial process, and safety is paramount. The Siega Fibre is built with a Class 1 laser enclosure, meaning it is safe for operation in standard environments without exposing operators to laser radiation — but proper usage, training, and awareness remain essential.

Here’s how to ensure safe daily use of the system:

Laser Safety Classification

Class 1 (Fully Enclosed):
The system’s design prevents any accidental exposure to laser radiation during normal use. Internal interlocks prevent laser activation if panels are open or improperly sealed.

Personal Protective Equipment (PPE)

While the Sineo Light is enclosed, use of laser-rated safety glasses (wavelength 1064 nm) is advised during setup or service with open panels.
Gloves and protective clothing may be required when handling sharp, hot, or heavy workpieces.

Task	Recommended PPE
Routine operation	No PPE required under closed housing
Maintenance (open casing)	Laser safety goggles (1064 nm rated)
Welding setup adjustments	Safety gloves, protective sleeves
Handling heavy components	Safety shoes, cut-resistant gloves
Optical cleaning or inspection	Anti-static gloves and lens-safe cloths

Workspace Safety Requirements

Ensure that the system is installed in a ventilated, dry, and stable area with proper clearance on all sides.
Install on a level, vibration-free surface to ensure axis stability.
Avoid stacking materials around the enclosure that could block access or cooling airflow.
Avoid clutter around the system to allow proper access to emergency stop and power cut-off.
Ensure all users are aware of the Class 1 safety zone boundaries.
Place proper safety signage indicating laser equipment in use.

Electrical & Cooling System Safety

Power supply should be 3-phase 380V, grounded properly.
Only trained personnel should access internal components or electrical cabinets.
Use only approved coolant fluids in the cooling system to prevent corrosion or leaks.
Use only Sigma-certified coolant; regularly check coolant levels and look for leaks.
Never run the laser if coolant is low or the system indicates temperature warnings.
Keep all power cables secured and free from obstruction or wear.

Software & Control Warnings

The Sigomatic interface is equipped with real-time alerts for:
- Overheating
- Water level drop
- Lamp fault
- Interlock failures
Never bypass safety interlocks or override alarms.

Emergency Procedures

An emergency stop button is located on the front control panel. All motors and laser output halt instantly when pressed.
Keep a Class C fire extinguisher nearby for electrical incidents.
Ensure all staff are briefed on emergency shutdown and evacuation procedures.
Power Cutoff: Located on the back panel — disconnects the full system from power.
In case of accidental exposure or incident, stop operation immediately and report to safety supervisor.

Training & Access Control

Only trained personnel should operate or maintain the machine.
Use login access levels on the Sigomatic interface to restrict advanced settings to supervisors or engineers.
Display safety signage around the unit to maintain operator awareness.

Safety Summary

While Sineo Light is designed for maximum safety with its enclosed Class 1 architecture, proper training, routine checks, and workspace discipline ensure the system runs safely for years to come.

Choosing the right laser welding system is a strategic investment. With so many options on the market — from entry-level bench-top welders to advanced fiber laser platforms — understanding how the Siega Fibre compares is crucial for informed decision-making.

Below is a side-by-side comparison between Siega Fibre and other typical laser welding systems, followed by a clear summary of its competitive advantages.

Comparative Table – Siega Fibre vs. Entry-Level Welders vs. Fiber Laser Systems

Feature	???? Siega Light	???? Entry-Level Welders	???? Fiber Laser Systems
Laser Type	Nd:YAG (Twin Lamp Cavity)	Basic Nd:YAG	Fiber Laser
Power Range	120 W / 160 W (modular upgrade)	60 W – 200 W	300 W – 1000 W
Automation Support	Manual / Semi-Automatic / CNC (X, Y, Z)	Manual only	Full CNC automation
Weld Control	Joystick + Teach-in + Sigomatic Pro (G-code optional)	Manual knobs	CAM/CNC software
Visual Inspection	Leica stereo microscope + optional live camera	Basic magnifier lens	Optional industrial camera
Customizability	Very High (modular hardware, software, optics)	Low	Medium
User Training Required	Minimal (intuitive interface)	Moderate	High (complex programming needed)
Maintenance	Predictable (lamp-based with TLC stability)	Frequent lamp replacements	Long-term fiber degradation
Price Range	Mid to High (excellent ROI)	Low (limited scalability)	High to Premium
Best For	Toolmaking, mold repair, aerospace, R&D, mobile operations	Small part repair	High-volume automated production
Safety Class	Class 1 (fully enclosed and interlocked)	Class 4 (open laser exposure common)	Class 1 (with proper casing)

Summary Highlights

Siega Fibre bridges the gap between low-cost welders and high-end fiber lasers, offering industrial performance with unmatched compactness and mobility.
Ideal for precise, mid-power welding tasks where space, control, and ergonomics matter — without the price tag or complexity of full-scale CNC fiber systems.

In today’s competitive market for laser welding solutions, choosing the right equipment can be challenging. The Siega Fibre from Sigma Laser sets itself apart through a unique blend of compact design, advanced performance, and unmatched versatility, making it a standout alternative to traditional systems.

Key Advantages of Siega Fibre Over Competing Models

Ultra-Compact & Mobile Design
- Unlike many conventional welding systems that are bulky and inflexible, Siega Fibre offers an exceptionally compact footprint. This allows it to operate efficiently in confined environments such as ship engine rooms or complex production lines. Its mobile-friendly structure enhances accessibility and ease of installation without compromising performance.
Three-Axis Detachable Welding Head
- Many systems lack ergonomic adaptability in tight spaces. Siega Fibre overcomes this with a detachable head featuring integrated X, Y, and Z axes, enabling precise out-of-position welding—even directly within injection molding machines.
High Energy Efficiency and Laser Stability
- Thanks to Sigma’s proprietary Twin Lamp Cavity (TLC) system, the Siega Fibre ensures extended lamp life and high pulse stability. This innovation significantly increases output consistency and reduces maintenance cycles, unlike many older Nd:YAG systems or budget fibre laser units.
Upgradeable Laser Output
- Competing systems often lack modularity. Siega Fibre features an innovative power stage system, allowing users to choose between 120 W or 160 W configurations. If your welding tasks evolve, the laser’s performance can be upgraded post-purchase, providing long-term value and adaptability.
Flexibility in Application
- Whether it’s tool and mold repair, aerospace component welding, or medical device fabrication, Siega Fibre delivers precise and repeatable results across diverse applications—outperforming many generic mobile systems that fail to meet precision requirements in industrial environments.
Lower Investment Costs Compared to Fibre Lasers
- While fibre lasers offer high efficiency, they come with increased costs and less suitability for high-peak pulsing. Siega Fibre provides comparable performance for high-precision tasks at a lower price point, especially where deep weld penetration or thick materials like tool steel are involved.
Modular Configuration for Future-Proofing
- Unlike rigid all-in-one machines, Siega Fibre offers modular software and hardware architecture, allowing custom configuration with accessories like Sigma Super Pulse Technology (SPT), ergonomic display panels, and automated axis control.

Siega Fibre is not just another laser welding machine; it’s a scalable, precision-engineered tool built for the challenges of modern manufacturing. Its combination of mobility, modularity, advanced optics, and robust construction places it in a class of its own—especially for companies seeking long-term ROI, operational flexibility, and superior welding results.

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Siega Fibre Laser Welding System

industrial grade welding workstationEquipment, Accessories & Features of Siega Fibre Industrial Laser Welding System