Sigma Mechotronics engineers and manufactures fiber laser marking machines built for
permanent, high-speed, non-contact marking in Indian industrial environments. Desktop, portable and
handheld configurations from 20W to 50W mark serial numbers, QR codes, barcodes, logos, part numbers,
date codes and deep engravings on metal, stainless steel, aluminium, brass, copper, anodised surfaces,
engineering plastics and coated components.
Sigma Mechotronics was established in 1997 in Ahmedabad, Gujarat, and has spent over two and
a half decades engineering precision fiber laser machines for Indian manufacturers. Our
fiber laser marking machines are designed for production environments that demand consistent
mark quality, zero consumable cost, and machines that run continuously without drift or
recalibration across shifts.
Whether your requirement is permanent traceability marking on automotive components, QR code
and barcode marking on medical devices, logo and batch number coding on packaging, or deep
engraving on industrial tooling — our range of desktop, portable and handheld machines
covers the full spectrum of industrial marking applications from a single manufacturer.
This page is a complete reference for anyone evaluating a fiber laser marking machine for
industrial use in India: what fiber laser marking is, how it works, which configuration
suits which application, the materials it marks and how, how fiber laser compares to CO₂ and
UV marking, which industries use these machines, the questions manufacturers ask most before
ordering, and what to avoid when specifying a machine for production use.
Definition
What Is a Fiber Laser Marking Machine?
A fiber laser marking machine is a CNC-controlled industrial system that uses a
high-powered, focused fiber laser beam to create permanent, non-contact marks on metal, plastic and other
materials. It burns, ablates or alters the material surface along a programmed path — producing serial
numbers, barcodes, QR codes, logos, alphanumeric codes, date stamps and deep engravings without physical
contact, without consumables and without any drop in mark quality over the machine’s operational lifetime.
The machine generates its laser beam inside a flexible fiber optic cable doped with rare-earth ytterbium.
This gives fiber laser systems their core operational advantages over older technologies: no optical
alignment requirements, no gas resonator, no mirror replacements, and electrical-to-optical conversion
efficiency typically exceeding 30% — compared with 8–10% for CO₂ systems. The laser source has a rated
operational life of 100,000 hours: over 11 years of continuous operation without source replacement.
The result is a mark that is physically part of the material surface — not applied on top of it. It
cannot be rubbed off, faded by chemicals, obscured by paint, or damaged by the handling conditions that
erase ink coding, labels or mechanical stamps. This is what makes fiber laser marking the production
standard for traceability, anti-counterfeiting and permanent identification across automotive,
electronics, medical device, aerospace and general engineering manufacturing.
Four Components, One Integrated System
01
Fiber Laser Source
Rated in watts — determines marking power, depth and speed.
02
Galvo Scanning Head
Steers the beam across the field at up to 12,000 mm/s using two precision
mirrors.
03
F-Theta Lens
Holds consistent focus depth across the entire marking field.
04
Machine Body
Desktop cabinet, portable housing or handheld unit, per configuration.
The Process
How a Fiber Laser Marking Machine Works
Understanding the marking process helps you evaluate machines correctly, set
realistic expectations for depth, speed and contrast, and specify the right configuration for your
production line.
1
Mark Design in Software
The mark — text, logo, barcode, QR code, serial number or artwork — is designed or imported in
the marking software. Sigma machines are compatible with EZCAD2 and similar industrial marking
software, and support DXF, BMP, PLT, AI and TTF/SHX font files. Variable data such as
incrementing serial numbers or date-time stamps is configured in software without reprogramming
for each part.
2
Part Placement & Fixturing
The workpiece is placed in the marking field. Desktop machines typically use a motorised Z-axis
table that adjusts focus height to part thickness; handheld and portable machines position the
head over the part. Rotary axis attachments, pneumatic clamps and conveyor interfaces are
configured to match part geometry and cycle requirements.
3
Beam Generation & Delivery
The fiber laser source generates a pulsed beam at 1064 nm. It travels through the fiber
optic cable to the galvo head, where two servo-controlled mirrors steer it across the field. The
F-Theta lens holds focus across the entire field, removing the depth variation that limits
simpler optical systems.
4
Marking, Engraving or Annealing
The beam interacts with the surface according to programmed pulse frequency, pulse width, scan
speed and power. Lower power and high speed produce surface marks or annealing effects; higher
power or multiple passes remove material to produce engraved grooves. Adjusting these parameters
controls the mark type for each material.
5
Part Removal — Mark Is Permanent
No drying, curing or secondary processing is required. The part exits ready for assembly,
testing, inspection or packaging. The mark is immediately readable by scanners, cameras and
operators, and stays readable for the part’s operational life under any typical industrial or
environmental exposure.
The Range
Three Configurations, One Manufacturer
Every machine is engineered for continuous industrial production in Indian
manufacturing environments. Power from 20W to 50W. Send an inquiry for specifications and pricing
tailored to your material, application and volume.
Fixed Workstation
Desktop
A rigid enclosed body houses the laser source, galvo head, control electronics and Z-axis table
in one integrated unit. The fixed workstation gives stable, repeatable mark positioning —
critical for barcode readability, QR data matrix compliance and consistent logo placement across
batches.
Power range
20W–50W
Marking field
100×100–300×300 mm
Marking speed
Up to 12,000 mm/s
Repeatability
±0.003 mm
Source life
100,000 hrs rated
Best for — production line marking, QC and
traceability, batch serial numbering, logo and barcode marking in fixed-location applications.
The marking head sits on a height-adjustable column with a movable base, letting it be
repositioned around large or fixed workpieces rather than the part coming to the machine —
correct for large fabricated assemblies, mounted components and heavy castings. The head swings,
tilts and locks to mark flat, curved or angled surfaces.
Power range
20W–50W
Marking field
100×100 mm
Head movement
Adjustable column, lockable swing arm
Marking speed
Up to 12,000 mm/s
Best for — large assemblies, heavy castings,
structural steel, fabricated parts too large for a table, field and on-site identification.
A compact handheld marking head connects via fiber cable to the laser source unit, delivering
permanent marks on installed equipment, in-place assemblies, outdoor structures, pipelines and
infrastructure that cannot be brought to a fixed station under any circumstances. Safety
interlocks prevent accidental firing during handling.
Power range
20W–50W
Marking field
Up to 300×300 mm
Operation
Handheld head on fiber cable
Safety
Integrated interlocks, operator protection
Best for — field marking of installed equipment, MRO
and asset tagging, pipeline and structural steel marking, on-site traceability during installation.
Power determines marking speed, achievable engraving depth and the range of
materials you can mark effectively. Use this as your production-practical starting reference.
Power
Primary Capability
Marking Speed
Best Application
Typical Industries
20W
Surface marking on metals; marking on engineering plastics
and anodised aluminium
Fast for light marking tasks
Serial numbers, barcodes, QR codes, logos on thin-gauge
components; plastic marking
Electronics, consumer goods, jewellery, medical devices
30W
Higher contrast marks on metals; faster throughput; light
engraving
Faster than 20W on same material
Automotive components, part traceability, moderate volumes;
stainless steel annealing
Auto-ancillary, general engineering, hardware manufacturing
50W
Deep marking and engraving on metals; high-volume production
at speed
High-speed continuous production
Deep serial number engraving, tool marking, mould cavity and
die marking
Heavy engineering, tooling manufacturers, auto parts,
aerospace
How to use this table — for standard traceability marking (serial
numbers, barcodes, QR codes) on metal components at normal production volumes, 20W to 30W covers most
requirements. Move to 50W when deep engraving is required, when line speed demands faster cycle times, or
when you regularly mark hardened steel, tool steel or thick-section components. Contact us for a
material-specific consultation before finalising your power selection.
Six Mark Types, One Machine
Types of Marks a Fiber Laser Machine Produces
By adjusting power, frequency, pulse width and scan speed, the same machine
produces fundamentally different marks suited to different materials and end-use requirements.
Surface Marking (Laser Etching)
Removes a thin surface layer — a few microns — creating a shallow, high-contrast mark. The fastest
method, and the correct choice for high-speed traceability marking where depth is not required.
Produces sharp, machine-readable barcodes and QR codes on steel, aluminium and stainless steel.
Deep Engraving
Multiple passes at higher power remove material to 0.2–1.0 mm or more, depending on power and
pass count. Specified where a mark must survive abrasive conditions, heavy handling or painting
over. Used in tooling, die casting, automotive chassis marking and defence/aerospace traceability.
Annealing (Black Marking)
On stainless steel and titanium, controlled heating below the melting point oxidises the surface to a
permanent black or colour mark without removing material. The surface stays smooth and intact —
correct for food processing, surgical instruments and implantable medical devices.
Ablation Marking
On coated, painted, anodised or plated surfaces, the laser removes the coating layer to reveal the
contrasting base material — high-contrast marks on coloured panels, powder-coated surfaces and
anodised aluminium parts. Common in electronics and automotive interior marking.
Foaming
On dark engineering plastics, a foaming reaction creates a light-coloured raised mark on the dark
background — high contrast, machine-readable and permanent. Used extensively for dark plastic
housings, automotive plastic components and electronic bodies.
Carbonisation
On light-coloured plastics and some organic materials, localised carbonisation produces a dark mark
on a light background. Used for white or natural-coloured plastic components and traceability on
non-metallic parts.
Compatibility
Materials a Fiber Laser Can Mark — and How
Fiber laser at 1064 nm is strongly absorbed by metals and works
effectively on a wide range of engineering plastics. Knowing which method applies to each material sets
correct expectations before ordering.
Stainless Steel
The primary material for fiber laser marking across Indian manufacturing. Accepts surface etching and
annealing. For food, pharma and medical components where the surface must stay smooth, annealing
produces a permanent black mark without material removal. Grades 304, 316, 316L and 410 all mark
well.
Mild & Carbon Steel
Marks cleanly by laser etching at all power levels; surface oxidation creates natural contrast.
Painted or coated mild steel can be ablation-marked to reveal the base metal. Deep engraving is
standard in automotive and heavy engineering traceability — the groove survives painting and heavy
handling.
Aluminium & Anodised Aluminium
Standard alloys mark well at 20W and above. Anodised aluminium — widely used in electronics
enclosures and branded products — suits ablation marking particularly well. Mirror-finish aluminium
may need specific parameter optimisation; confirm your alloy and finish before ordering.
Brass & Copper
Both mark effectively on fiber laser — an important distinction from CO₂ systems, which cannot safely
mark highly reflective metals. Brass is common in electrical components and valves; copper in
conductors and bus bars. Confirm your cutting head is rated for reflective material exposure.
Titanium
Marks with controlled annealing or etching. Annealing produces a range of colours by temperature —
used decoratively on premium products and medical implants. Aerospace and medical traceability
typically uses surface etching or shallow engraving. 30W and above recommended for reliable
throughput.
Engineering Plastics
POM, ABS, PA, PC and HDPE mark well, though the method — foaming, carbonisation or ablation — depends
on polymer type and colour. Some plastics are incompatible with fiber laser at 1064 nm; for
these a CO₂ or UV machine is correct. Confirm your plastic grade and colour before ordering.
Coated, Painted & Plated Surfaces
Ablation marking on painted mild steel, powder-coated panels, chrome and nickel plated parts and
anodised surfaces is a standard application. The laser removes the coating at the mark location
without affecting the surrounding finish.
What Fiber Laser Does Not Mark Well
Clear plastics, rubber, wood, textiles, leather, glass and most non-metallic materials are not well
suited to fiber laser at 1064 nm. A CO₂ laser (10.6 µm) or UV laser (355 nm) is the
correct choice — contact us to discuss the right technology for your material.
Technology Comparison
Fiber Laser vs CO₂ vs UV Marking
Three laser wavelengths are used in industrial marking. The correct technology
depends on your material — here is how they compare on the criteria that matter for production.
Criteria
Fiber · 1064 nm
CO₂ · 10.6 µm
UV · 355 nm
Best material
Metals, engineering plastics
Wood, acrylic, leather, rubber, glass
Sensitive plastics, glass, ceramics, PCBs
Metal marking
Excellent — etching, engraving, annealing
Poor to none — wavelength not absorbed
Good on some; better for surface than depth
Plastic marking
Good on dark/filled engineering plastics
Excellent on most plastics, rubber, leather
Excellent — especially transparent/heat-sensitive
Heat affected zone
Low on metals; moderate on some plastics
Moderate — thermal process
Minimal — near cold-laser process
Reflective metals
Yes — with rated head
No — reflects; risk of resonator damage
Yes — effective on reflective metals
Electrical efficiency
30%+ wall-plug efficiency
8–10% wall-plug efficiency
Moderate — diode-pumped DPSS
Maintenance
Very low — no mirrors, no gas, 100,000 hr source
High — resonator gas, mirror alignment, tube life
Low to medium — DPSS crystal end-of-life
Bottom line for Indian metal manufacturers — if your primary requirement
is on metal — mild steel, stainless steel, aluminium, brass, copper, titanium or alloy steels — a fiber
laser marking machine is the correct technology: faster, more energy-efficient, lower maintenance, and
better mark quality on metal than CO₂ at any equivalent power level. CO₂ remains correct for non-metallic
materials; UV is the choice for heat-sensitive materials or a true “cold marking” process.
Deployed Across India
Industries That Run Sigma Marking Machines
Used across Indian manufacturing clusters — from Ahmedabad, Rajkot and Surat
in Gujarat to Pune, Nashik and Aurangabad in Maharashtra, Ludhiana and Amritsar in Punjab, Chennai,
Coimbatore and Bengaluru in the South, and Delhi-NCR.
Automotive & Auto-Ancillary
Electronics & PCB Manufacturing
Medical Device & Surgical Instruments
Jewellery & Precious Metal
Pump, Valve & Industrial Engineering
Tool, Mould & Die Manufacturing
Packaging & FMCG Lines
Defence & Aerospace Components
Electrical Panel & Switchgear
Pharmaceutical & Chemical Equipment
Fastener & Hardware Manufacturing
Agricultural Equipment Manufacturing
Five Decisions
How to Select the Right Machine
Most buying mistakes come from specifying a machine on price and power alone,
without working through material, mark type and configuration first. These five decisions determine the
right machine for your operation.
1
Identify Your Material & Required Mark Type
What do you mark most often, and what type of mark is required — surface etching, annealing, deep
engraving, ablation? The combination of material and mark type drives your technology and power
selection more than any other factor. Bring this to your first conversation rather than starting
with “what is the cheapest machine.”
2
Desktop, Portable or Handheld?
The choice is driven by whether the part comes to the machine or the machine goes to the part.
Loadable parts at a workstation — desktop. Large assemblies or heavy components — portable.
Installed equipment or field assets — handheld. Many operations benefit from more than one
configuration.
3
What Power Do You Actually Need?
20W suits surface marking on metal and most plastic marking at moderate volumes. Move to 30W for
faster cycles on stainless and harder alloys. Specify 50W for regular deep engraving, minimum
dwell-time production lines, or hardened/tool steel. Don’t pay for power you don’t need — but
don’t let marking speed become a bottleneck from month one.
4
What Marking Field Size?
Field size is set by the F-Theta lens on the scanning head. Desktop and handheld support
150×150–300×300 mm; portable is built for 100×100 mm. A larger field at the same power
means lower power density at focus — deep engraving across a large field needs higher power to
compensate.
5
Do You Need a Rotary Axis?
For cylindrical parts — rings, tubes, bottles, shafts, pins, bearings, fasteners — a rotary axis
attachment rotates the part while the laser marks it, enabling seamless 360° marking without
repositioning. Specify it at purchase; retrofitting later adds cost and time.
Manufacturer, Not Trader
Why Manufacturers Choose Sigma Mechotronics
27 years of machine manufacturing is not a marketing
claim — it is visible in how our machines are built, how they perform under real Indian production
conditions, and how we support them over the operational lifetime of the machine.
27 Years of Indian Manufacturing Experience
We have worked with manufacturers across Gujarat, Maharashtra, Tamil Nadu, Punjab and other major
Indian manufacturing states through the full evolution of fiber laser technology. Every design
decision reflects what Indian production environments actually demand: voltage fluctuations, dust,
heat, and multi-shift operation without constant recalibration.
Complete Laser Range From One Manufacturer
Marking, cutting, welding and cleaning — Sigma manufactures all four fiber laser machine types. When
your operation needs a cutting or welding machine next year, you deal with one manufacturer who
already knows your operation, with one service relationship and one point of contact.
Made in India, Not Grey-Market Imported
Sigma is an Indian manufacturer, not a trading house importing unbranded machines. Spare parts are
held in India, service engineers are based in India, and the manufacturer you call for support is
the organisation that built your machine — not an overseas agent chain.
Consultation, Installation & Training
We provide technical consultation before purchase to confirm the right specification, installation
and commissioning at your facility, parameter setting and operator training, and ongoing technical
support — so the machine runs correctly from day one, not “doesn’t work” from week one.
Before You Order
Manufacturer Credentials & After-Sales Support
Before placing an order for a capital machine, you should know exactly who you
are buying from, and what happens after the invoice. Here are the verifiable details.
Company & Facility
Registered, GST-Compliant Company
Sigma Mechotronics Pvt. Ltd. is a registered Indian private limited company, GST-registered, with
over 27 years of continuous operation in precision machine manufacturing. Every purchase is
accompanied by a proper GST tax invoice under your GSTIN — fully compliant for ITC claims, capital
equipment accounting and audit documentation.
Manufacturing Facility
Manufacturing plant at Plot No. 58–59–60, Gopal Charan Industrial Hub, Bakrol, Ahmedabad, Gujarat.
Head office at 22, Bileshwar Industrial Estate, Nr. S.P. Ring Road Circle, Odhav Industrial Estate,
Ahmedabad. Facility visits are welcome by appointment.
Full Laser Range Since 1997
Sigma manufactures fiber laser marking, cutting, welding and cleaning machines — not a single-product
reseller. 27 years across this range means machines built by engineers with domain depth, serviced
by a team that knows every component from the inside.
Warranty & Support
2-Year Machine Warranty
All Sigma fiber laser marking machines carry a 2-year warranty covering manufacturing defects in the
machine body, galvo scanning head, control electronics and motion system. Claims are handled
directly by Sigma — not routed through an agent or overseas supplier.
Installation & Commissioning Included
Our technical team installs and commissions the machine at your premises, sets marking parameters for
your material and application, trains your operators, and verifies mark quality on your actual
production parts before handover.
Spare Parts Held in India
Critical spares — F-Theta lenses, galvo scanning heads, control boards — are held in India and
sourced locally, not ordered on a 6–12 week international shipping cycle. This matters most the
first time your machine needs unplanned maintenance.
Service Across Gujarat, Maharashtra & Pan-India
Primary coverage includes Gujarat (Ahmedabad, Rajkot, Surat, Vadodara, Gandhinagar), Maharashtra
(Pune, Nashik, Aurangabad, Mumbai), and key centres in Tamil Nadu, Karnataka, Punjab and Rajasthan.
Customers outside primary zones receive remote support with on-site visits by prior coordination.
Technical content on this page is reviewed by the Sigma Mechotronics Applications
Engineering team. All machine specifications should be confirmed at time of inquiry, as configurations
may be updated.
Avoid These Buying Mistakes
7 Common Mistakes When Buying in India
1
Specifying 20W for a deep engraving application. 20W suits surface marking at
typical speeds. Engraving to depth on hardened or tool steel, or marks that must survive painting or
abrasive handling, need more power — match power to actual depth and throughput.
2
Buying fiber laser for non-metal materials without checking compatibility. Fiber at
1064 nm is not right for wood, clear plastics, rubber, leather, glass or most ceramics — these
need CO₂ or UV. Confirm your material and plastic grade first.
3
Choosing desktop when portable or handheld is the practical need. A desktop machine
cannot mark a 2-tonne fabricated assembly. Specify the configuration that matches how you actually
work, not the cheapest one in a brochure.
4
Not specifying a rotary axis for cylindrical parts. Shafts, pins, bolts, rings and
tubes cannot be marked uniformly without one. Forgetting it at purchase means buying it later at
extra cost, or marking only flat projections.
5
Buying the lowest-price machine from an unverifiable source. Low-cost imports sold
without India service infrastructure, spares or support are not a saving if the machine sits idle on
a 12-week overseas shipment. Evaluate the manufacturer’s service capability, not just price.
6
Not testing on your actual material before committing. Mark quality and contrast
vary between grades, finishes and coatings. A demonstration on your exact material is the only
reliable way to confirm the machine meets your spec before purchase.
7
Ignoring fume extraction for plastic marking. Marking engineering plastics generates
fumes that should not be inhaled. An enclosed body with integrated extraction is the correct
specification — open machines without extraction are a safety problem, not a saving.
Straight Answers
Frequently Asked Questions
Direct answers to the questions Indian manufacturers most commonly ask before
evaluating or ordering a fiber laser marking machine.
Fiber laser marking machines mark metals and engineering plastics effectively. On metal:
stainless steel, mild steel, carbon steel, aluminium, anodised aluminium, brass, copper,
titanium, gold, silver and most alloy steels. On plastic: POM (Delrin), ABS, PA (Nylon), PC
and certain filled engineering plastics. Fiber laser does not mark well on clear plastics,
rubber, wood, leather or glass — these require CO₂ or UV laser systems. Confirm your
specific plastic grade and colour with us before ordering.
These describe different material interaction depths produced by the same machine through
parameter adjustment. Laser etching (surface marking) removes a thin layer — a few microns —
at maximum speed, the standard for barcode and QR marking on metal. Laser engraving removes
material to measurable depth (0.1–1 mm or more) for marks that must survive abrasion,
overpainting or heavy handling. Laser annealing removes no material at all — controlled
heating creates an oxide colour change on stainless steel and titanium, producing a smooth,
crevice-free mark used in medical and food-grade applications.
The difference is how the machine and workpiece relate. A desktop machine is a fixed
workstation — the part comes to the machine and sits on the work table. A portable machine
mounts the head on a height-adjustable column with a movable base — the machine goes to the
part, for large assemblies or heavy components. A handheld machine puts the head in the
operator’s hand on a flexible cable — positioned anywhere, for installed equipment, fixed
infrastructure and field assets.
Power depends on your primary marking task and throughput. 20W is adequate for surface
marking (serial numbers, barcodes, QR codes) on metals and most engineering plastics at
standard speeds. 30W gives faster cycles and more consistent results on harder alloys. 50W
is right for deep engraving, hardened tool steel, or high-throughput lines where minimising
cycle time matters. If unsure between two levels, contact us — we’ll help you decide based
on your material, depth requirement and volume.
Yes — through laser annealing (also called black or colour marking). Controlling power and
pulse parameters heats the surface below its melting point, inducing controlled oxidation
that produces a permanent black or colour mark without removing material. The surface stays
smooth and intact, the required method for food processing equipment, pharmaceutical
components, surgical instruments and medical implants. The mark survives autoclave
sterilisation, chemical disinfection and prolonged surgical handling.
Yes — one of the primary production applications. Fiber laser marking produces high-contrast,
machine-readable QR codes, 2D data matrix codes, 1D barcodes (Code 128, Code 39, EAN, UPC
and others) directly onto metal and plastic components. The mark survives heat, solvents,
abrasion, outdoor exposure and heavy handling that would destroy printed or adhesive labels.
Marks can be verified against ISO/IEC 15415 and 15416 readability grades on request.
Very low maintenance requirements — one of fiber laser’s principal advantages over CO₂ and
older technologies. No mirrors to align, no resonator gas, no cutting consumables to wear
out. The laser source has a rated life of 100,000 hours. Routine maintenance is keeping the
F-Theta lens clean, periodically checking the galvo mirrors, and ensuring the cooling system
runs correctly. Annual technical inspection is recommended.
Sigma machines are compatible with EZCAD2, the standard industrial marking software in Indian
manufacturing. It supports text, graphics, barcodes, QR codes, data matrix, serial number
incrementing, date-time stamps and database-linked variable data. File support includes DXF,
AI, BMP, PLT and standard TTF/SHX fonts, so files from your existing CAD workflow import
directly. Contact us to confirm compatibility for MES integration requirements.
Pricing varies with configuration, laser power, marking field size, optional accessories
(rotary axis, automation interfaces) and application-specific requirements. We don’t publish
fixed pricing because the right specification differs by customer and application — and an
incorrectly specified machine at any price is a poor investment. Send an inquiry with your
material, mark type, volume and preferred configuration for a detailed quotation.
Yes, with a rotary axis attachment. It mounts to the desktop work table and rotates the
cylindrical workpiece while the laser marks it, enabling seamless 360° marking around rings,
shafts, tubes, bolts, pins and bottles. Standard accessory for jewellery manufacturers
marking bangles and rings, automotive suppliers marking shafts and fasteners, and any
operation marking cylindrical parts regularly. Specify at purchase — it’s more
cost-effective than retrofitting.
The fiber laser source has a rated operational life of 100,000 hours — over 34 years of
theoretical single-shift use at 8 hours a day. In practice, well-maintained machines stay in
productive service for 10 to 20 years. Correct installation, proper operating conditions and
routine optical maintenance are what determine actual machine life. A machine from a
manufacturer with local service and available spares in India will significantly outlast one
bought solely on price from a non-serviceable source.
Inkjet coding sprays ink onto the surface — the mark sits on top of the material, can smear
while wet, and fades or degrades with heat, abrasion or chemical exposure. It also needs
continuous ink supply and printhead maintenance. Dot peen marking impacts the surface with a
hardened pin — effective on metals but produces mechanical stress and limited resolution,
risking deformation on fragile or thin components. Fiber laser marking is non-contact, needs
zero consumables, gives higher resolution, and the mark is physically part of the material —
permanent under any service condition.
Installation and commissioning at your premises, operator parameter training for your
specific material and marking requirements, and ongoing technical assistance through the
warranty period. We are an Indian manufacturer with service infrastructure in India — your
service request is not routed through an overseas supplier. Contact us to discuss service
response arrangements for your location before ordering.
Yes. Desktop machines can be integrated with conveyor-triggered marking, PLC interfaces,
industrial communication protocols (RS-232, Ethernet, Modbus) and camera-based part
positioning. For high-speed lines, flying-spot marking — marking parts moving on a conveyor
without stopping — is possible at appropriate speeds. If your requirement involves automated
triggering, database-linked serials or vision-guided positioning, contact us at the inquiry
stage so the machine is specified correctly from the outset.
Sigma Mechotronics provides a 2-year warranty on all fiber laser marking machines, covering
manufacturing defects in the machine body, galvo scanning head, control electronics and
motion system. Warranty service is handled directly by Sigma — not through third-party
agents or overseas suppliers. Contact us before ordering to confirm coverage and service
response arrangements for your location.
Yes. Sigma Mechotronics is a GST-registered manufacturer and provides a proper GST tax
invoice for every machine purchase, under your GSTIN, fully compliant for ITC claims,
capital equipment accounting and statutory audit requirements. All purchases are fully
documented. Mention any specific GST documentation requirements at the inquiry stage and
we’ll confirm the invoice format in advance.
Yes — WhatsApp is the fastest way to reach us. Send your material type, required mark type,
approximate production volume and preferred configuration to +91 99090 26467 and our team
will respond with relevant specifications and pricing. For formal quotations or detailed
technical consultations, follow up by email or inquiry form so requirements are documented
in writing.
The marking field is the area the galvo head can steer the beam across in a single setup, set
by the F-Theta lens fitted. Standard fields range from 100×100 mm (small component
marking) to 300×300 mm (larger logos, batch marking). A larger field means lower power
density at focus — deep engraving across a large field needs higher power to compensate.
Discuss your largest required mark size alongside power and depth requirements when
specifying.
Variable data is managed entirely through the marking software (EZCAD2) without hardware
changes between parts. Serial number fields auto-increment each trigger cycle; date-time
fields pull the current system time. For database-linked codes pulled from a production MES
or ERP system, RS-232 or Ethernet interfaces connect the machine to the production system —
a standard requirement for automotive traceability and medical device marking.
Four parameters: laser power (higher removes more material per pass), scan speed (slower
increases energy delivered per mm), pulse frequency (lower delivers higher peak pulse
energy) and number of passes (each pass deepens the groove). Shallow marks need a single
optimised pass; deep engraving to 0.5 mm and above on hardened steel needs multiple
passes at 50W or higher. These are saved as named presets in software — operators do not
recalculate them per job.
Tell us your material, required mark type, production volume and preferred
configuration — our team will come back with the right machine specification and pricing for your actual
requirements. No generic quotes. No mismatched specifications.
