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Fiber laser cutting is changing metal manufacturing by giving fabricators a precise, adaptable way to process sheet, tube and other metal forms. Its value is not determined by laser power alone: material, thickness, part geometry, process settings, handling equipment and safety controls all affect whether a system suits a production job.
How fiber laser cutting works
A fiber laser delivers laser energy through an optical fiber and focuses it into a small spot on the workpiece. The concentrated energy makes it possible to cut metal with high precision. Fujikura attributes that precision to beam quality and the energy density created by focusing the spot.
Fiber lasers can be an efficient alternative to CO2 lasers or plasma cutting in some metal-cutting applications, but those other technologies remain in use for jobs where they fit. Claims of lower processing time or greater efficiency are application-dependent, not guaranteed savings for every manufacturer.
How thick of metal can a fiber laser cut?
Maximum thickness depends on the material and the specific equipment and process. Fujikura publishes the following maximum-thickness examples for its 3 kW and 6 kW oscillator configurations:
#1 Best Overall
- Brand New Integrated Mini Fiber Laser: The brand new Monport fiber marking machine has a smaller size and lighter weight; Simultaneously maintaining the original high performance and a lifespan of up to 100000 hours.The fiber laser can engrave all metals. (gold, silver, copper, stainless steel, brass, titanium, etc.)
- Faster and More Accurate: The newly customized galvanometer system is equipped with more expensive silicon material reflectors, allowing for a maximum speed of 10000mm/s. Monport has also customized an F-theta field mirror, which, together with the entire marking system, can achieve a carving accuracy of 0.01mm.
- Just Right Working Area: For a 60W Fiber Laser, an area of 150*150mm is optimal, as excessive engraving area may result in poor engraving effect or even distortion.After special tuning by Monport, even when carving at the edges, there will be no weak light.
- Deep Engraving and Cutting Capabilities: With this 60W fiber laser marking machine, you can perform 2.5D metal engraving, deep metal engraving, and even some metal sheet cutting (usually the higher the power, the stronger the deep engraving and cutting ability, and the higher the efficiency. If you want stronger and faster results, Monport recommends purchasing a 60W or above machine)
- Lightburn Compatible: All Monport fiber marking machines can be operated using Lightburn, but if you don't want to use Lightburn, we also provide free and easy-to-use software (Free software and backup parameters are saved on a USB drive and included in the packaging).
| Material | 3 kW maximum | 6 kW maximum |
|---|---|---|
| SS400 mild steel | 22 mm | 35 mm |
| Stainless steel | 10 mm | 20 mm |
| Aluminum | 10 mm | 20 mm |
| Brass | 12 mm | 17 mm |
| Copper | 2 mm | 6 mm |
Fujikura explicitly cautions: “These processing data do not guarantee processing.” These are equipment-specific reference values, not a promise of production speed, edge quality, reliable piercing or suitability for a particular part. Fujikura notes that results can also depend on laser conditions and peripheral optical systems and equipment. Use the figures to frame questions, then validate the intended material and thickness with application-specific test cuts. Fujikura product information
What is changing in factory equipment
Fiber laser cutting is no longer limited to one kind of workpiece or machine layout. Current industrial offerings include systems for flat sheet, tube, combined sheet-and-tube processing and three-dimensional cutting. Some configurations integrate loading and unloading, linking cutting capacity with material handling. Cutlite Penta product configurations
Rank #2
- All-Metal Capability: The 60W MOPA fiber laser engraver handles diverse metal tasks—3D embossing, deep engraving, color engraving, and cutting 2mm metal—even combined processes. It also supports black marking on aluminum, laser cleaning, and thin metal welding, delivering exceptional results on gold, silver, stainless steel, brass, titanium, and more.
- 100+ Consistent Colors Engraving on Metal: This 60W MOPA laser engraving machine delivers over 100 vibrant and consistent colors on metals, thanks to its precisely calibrated structure and premium optical system. Our pre-set color files help you to engrave a color matrix in one click, making it easy to find the right settings for any color. No more repetitive testing, saving you time!
- AI-Powered Precision & Simplicity: Equipped with dual 48MP AI cameras, increasing positioning accuracy to 0.2mm and boosting 60% precision compared to single-camera systems. AI auto-detects materials, suggests settings, and enables one-click focus and preview for flawless results.
- Industrial-Grade Productivity: Operating at speeds up to 15,000mm/s, the 60W MOPA laser completes jobs with both speed and accuracy, reducing 3D embossing time by up to 80% compared to 20W fiber lasers. The F2 Ultra boasts the largest desktop fiber laser engraver working space at 8.7"x 8.7", expandable to 8.7" x 19.7" if with the auto conveyor(available separately), enabling automated batch processing for high-volume orders with a single setup.
- xTool F2 Ultra Single is a Class 4 laser engraver, the fiber laser output power being 60,000mW
Power ratings are rising for applications such as thick-sheet cutting. Coherent announced its 30 kW EDGE FL30 on September 4, 2025, describing it as engineered for thick-sheet cutting. That is a manufacturer product announcement, not an independent production test, and it does not mean every fabricator needs a high-power source. Coherent’s EDGE FL30 announcement
The Tool Desk
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A laser source is only one part of a production system. The practical benefit depends on whether the machine can repeatedly make the required parts, at the required quality and rate, within the shop’s workflow. A system with more power may help with certain thicknesses or job mixes, but it does not by itself establish faster throughput, lower costs or a better finished part.
Rank #3
- NOTE: This is xTool F1 Ultra, with 16mp camera, 20w fiber laser, support 3D emobossing engraving.
- Support Almost All Materials Ultra-Fast: Introducing the world's first 20W fiber and diode dual lasers, achieving speeds up to 10,000mm/s. The fiber laser can engrave all metals (gold, silver, copper, stainless steel, brass, titanium, etc.) in seconds, while the diode laser excels on wood, acrylic, leather, glass, rubber, fabric, and more.
- 3D Embossing and Deep Engraving: With 20W power in both fiber and diode lasers, the F1 Ultra laser engraving machine handles intricate, multi-level 3D engraving and deep engraving on various materials, including metal, wood, and rock, creating high-value items.
- Factory-Level Productivity: xTool's exclusive Auto Streamline Production, powered by the Auto Conveyor (available separately) and a 16MP SMART CAMERA system, effortlessly manages batch engraving. This laser engraver and cutter machine automatically recognizes shapes on the conveyor, intelligently fills patterns on every piece nonstop, and with its 10,000mm/s speed, completes entire batches in minutes.
- Revolutionary Working Area and HD Resolution: The F1 Ultra boasts the largest desktop fiber laser engraver working space at 220mm x 220mm, expandable to 220mm x 500mm if with the auto conveyor. This enlargement doesn't compromise the detail and precision of HD photo engraving in any corner, unlike other fibers with switchable lenses.
- Material mix: Identify the metals and alloys actually processed, including reflective materials relevant to the shop.
- Part requirements: Check edge quality, piercing stability, repeatability and any post-processing needed on representative parts.
- Production mix: Measure throughput on representative jobs and nests, rather than relying only on a supplier’s best-case thin-sheet speed.
- Handling and layout: Match sheet, tube, combined or 3D capability to the work, and determine whether loading, unloading, storage or other automation is needed.
How to evaluate a system for your shop
- Define the real work. List the materials, alloy grades, thickness range, geometries, quality requirements and job volumes the machine must handle.
- Request application testing. Ask suppliers to cut representative parts and document results such as edge condition, piercing behavior, repeatability, processing time and downstream finishing needs.
- Compare complete configurations. Include the laser, optics, machine format, controls, software, extraction and material-handling equipment—not just the source’s rated power.
- Estimate operating and ownership needs. Account for power, assist gas, consumables, extraction, maintenance, training and service response. The cited sources do not establish a neutral, like-for-like total-cost comparison or a universal payback period, so request application-specific quotations and validate costs for your facility.
- Confirm local support. Check service availability, operator support, controls and software fit, along with expected response arrangements.
- Review safety before installation. Confirm enclosure and interlocks, ventilation, maintenance procedures, installation requirements and applicable regulations with qualified safety personnel.
Safety, fumes and applicable standards
Laser cutting involves more than controlling the beam. Laser radiation, machine access, process fumes and vapors all require attention. ISO 11553-1:2020 covers laser-radiation hazards from laser-processing machines, related safety requirements and information manufacturers provide. ISO reports that the 2020 edition was reviewed and confirmed as current in 2025. ISO 11553-1:2020
OSHA’s laser-hazards standards page points to ANSI B11.21 for machine tools using lasers, IEC 60825-1 for laser-product classification and requirements, and ISO 11553-1. OSHA’s Technical Manual says ventilation should be installed to reduce potentially hazardous fumes and vapors from laser cutting and related processes to appropriate exposure limits. OSHA laser-hazards standards · OSHA Technical Manual, Section III, Chapter 6
Rank #4
- INDUSTRIAL-GRADE ENGRAVING SPEED: The GWEIKE G2 Max 50W Fiber Laser Engraving Machine Is Equipped With A High-Speed Precision Galvanometer, Achieving An Engraving Speed Of Up To 15000 mm/s And An Accuracy Of 0.001 mm. Its Powerful Performance Significantly Enhances Work Efficiency. Supporting HD 8K Engraving Resolution, It Precisely Captures Every Detail, Delivering An Exceptional Engraving Experience.
- DEEP ENGRAVING, METAL CUTTING & 3D CARVING: The G2 Max Is Equipped With A 50W 1064nm Fiber Laser, Offering Comprehensive Upgrades In Deep Engraving And Metal Cutting Capabilities. It Enables High-Precision Deep Engraving On Various Metal Materials. The Exceptional Engraving Depth Fully Unleashes Your Creativity And Inspiration, Allowing You To Effortlessly Create High-Value, Exquisite Works.
- LARGE WORKING AREA: The GWEIKE G2 Max Features a Larger Working Area with an Engraving Size of 150*150mm. It Comes Equipped with an Electric Lift Column, Allowing for Easy Focus Adjustment with Just The Push of a Button, Eliminating the Need For Manual Adjustment. This Design Enhances Efficiency and Provides a Superior User Experience.
- 90+ COLOR ENGRAVING: The GWEIKE G2 Max Fiber Laser Marking Machine Features Exceptional Color Engraving Capabilities, Allowing You To Mark And Engrave Over 90 Vibrant Colors On Metals Such As Stainless Steel And Titanium. Additionally, The G2 Max Supports Engraving On Various Materials Including Plastic, Leather, Dark Glass, Colored Ceramics, Acrylic, And Stone.
- RED LIGHT PREVIEW: The GWEIKE G2 Max Features Dual Red Light Positioning and An Industrial-Grade Fully Digital Galvano Scanning System, Providing Comprehensive Support for Rapid Previewing of Engraving Materials. The Advanced Technology Simplifies The Positioning and Focusing Process, Allowing You to Transform Your Ideas Into Reality with Faster Speed, Greater Precision, and Enhanced Versatility.
The controls that apply depend on the machine, installation, materials and jurisdiction. Follow current machine documentation and involve qualified safety personnel in the equipment selection, installation and operating procedures.
Quick Recap
Best Value
- INDUSTRIAL-GRADE ENGRAVING SPEED: The GWEIKE G2 Pro 30W Fiber Laser Engraving Machine Is Equipped With a High-Speed Precision Galvanometer, Achieving an Impressive Engraving Speed of 15000 mm/s, With a 79% Increase in Efficiency. The G2 Pro Features an Unprecedented 8K Engraving Resolution With an Accuracy of Up to 0.001 mm, Ensuring That Every Engraving Detail Is Perfectly Rendered.
- 3D EMBOSSING & DEEP ENGRAVING: The G2 Pro, Powered by a 30W 1064nm Fiber Laser, Boasts Superior Deep Engraving Capabilities, Allowing for Precise Deep Carving on Various Metals. This Remarkable Engraving Depth Effortlessly Unleashes Your Creativity and Inspiration, Helping You Create High-Value Items.
- PORTABLE & HANDHELD ENGRAVING: The GWEIKE G2 Pro Features A Detachable Design With A Compact Structure, Extending Its Engraving Capabilities Beyond Traditional Workbenches. This Feature Allows It to Engrave Almost Anywhere, Providing Unmatched Flexibility And Adaptability.
- 90+ COLOR ENGRAVING: The GWEIKE G2 Pro Fiber Laser Marking Machine Features Exceptional Color Engraving Capabilities, Allowing You To Mark And Engrave Over 90 Vibrant Colors On Metals Such As Stainless Steel And Titanium. Additionally, The G2 Pro Supports Engraving On Various Materials Including Plastic, Leather, Colored Ceramics, Black Acrylic, And Stone.
- RED LIGHT PREVIEW: The GWEIKE G2 Pro Offers an Engraving Working Area of 110*110mm and Features Dual Red Light Positioning and an Industrial-Grade Fully Digital Galvano Scanning System, Providing Comprehensive Support for Rapid Previewing Of Engraving Materials. The Advanced Technology Simplifies the Positioning and Focusing Process, Allowing You to Realize Your Ideas Faster, with Greater Precision, and Enhanced Versatility.
