A laser cleaning machine removes surface contamination – rust, old paint, oxide scale, oil residue and mould-release film – by focusing a pulsed laser beam on the surface, vaporising the unwanted layer without touching, abrading or chemically treating the material underneath. Sigma’s hand-held version delivers that beam through an ergonomic gun with multi-mode presets matched to the contamination and substrate, at 1500W, 2000W or 3000W.

Sandblasting removes material by physical abrasion – fast on large areas, but indiscriminate, and it generates spent media that needs disposal and dust that needs containment. Laser cleaning ablates the contamination selectively, leaving the base material largely unaffected, with no media to buy, store or dispose of. Sandblasting can still be more economical on very large, uniformly contaminated industrial surfaces; laser cleaning is generally the better choice for precision work, weld-prep and situations where substrate condition matters.

Chemical stripping dissolves or reacts with the coating, which works well on large areas but generates hazardous waste, needs ventilation and handling precautions, and can attack some base materials along with the coating. Laser cleaning has no chemical reaction, no effluent and no hazardous waste – it vaporises the contamination directly, leaving nothing to neutralise or dispose of beyond the extracted particulate.

It’s a laser cleaning machine where the beam is delivered through a lightweight gun the operator carries and positions manually, rather than through a fixed head in an automated cell. It gives the flexibility to clean surfaces that vary in size, shape and location – a rusted beam one day, a mould cavity the next – rather than being built around one fixed part geometry.

Match the power tier to your typical contamination, not your occasional heavy job. 1500W suits light rust, thin coatings and precision or small-area cleaning. 2000W is the practical middle ground for mixed job-shop use. 3000W suits heavy scale, thick coatings and large-area or high-speed cleaning. If your heaviest job is rare, running multiple passes on a mid-tier machine is often more economical than buying the top tier for an occasional task.

Rust and oxide scale, old paint and coatings, oil, grease and mould-release residue, and weld discolouration and scale before or after welding. It’s a precision surface-contamination tool, so very heavy, uniform contamination across large industrial-scale areas is generally better handled with traditional bulk methods.

Metals generally clean well – steel, stainless steel, aluminium and similar substrates – since the contamination layer and the base metal absorb the laser’s energy at different rates, which is what lets the machine remove the contamination without damaging what’s underneath. Very reflective or very dark, highly-absorptive surfaces may need parameter tuning; confirm your specific substrate with our applications team.

No shielding gas or water is required – the process is dry and non-contact. What it does need is fume extraction, since the vaporised contamination has to go somewhere rather than settling back onto the surface or dispersing into the work area.

Yes, with standard fume extraction appropriate to what’s being removed. Laser cleaning generates no liquid effluent and no abrasive dust cloud, which is an advantage over sandblasting or chemical stripping indoors – but it does vaporise the contaminant as fine particulate, so extraction is still a requirement, not an optional extra.

Equipment in this power class is typically classified as a Class 4 laser product, the highest hazard classification. Wavelength-rated eye protection for anyone in the work area, controlled access, and properly functioning interlocks are standard requirements. Standard fume extraction also applies to the vaporised contamination.

Effectively none in normal operation – no abrasive media, no chemical stripper, no filler material. Running cost is electricity, and routine attention is limited to protective-lens cleaning and periodic technical inspection rather than restocking consumables.

It depends on how heavy and how thick the contamination is relative to the power tier in use. Light-to-moderate rust or coatings typically clear in a single pass at the appropriate power; heavy scale or thick coatings usually need multiple passes or a higher power tier. There’s no universal figure that applies to every contamination and substrate combination – a trial on your actual material gives a reliable answer.

Not necessarily entirely, and it’s worth being honest about where the line sits. For precision cleaning, weld-prep, mould maintenance and restoration work, laser cleaning is generally the better tool. For very large, uniformly contaminated industrial-scale areas, sandblasting can still be faster and more economical at that scale. Most operations that adopt laser cleaning use it alongside their existing process rather than replacing it outright.

Very little by design – no abrasive media to restock, no chemical stripper to replenish or dispose of, and no nozzle or blast-media wear the way sandblasting equipment experiences. Routine maintenance is protective-lens cleaning, periodic checks of the beam-delivery optics, and a scheduled technical inspection.

Pricing depends on the power tier – 1500W, 2000W or 3000W. We don’t publish fixed pricing because the right specification differs by contamination type, substrate and volume, and an under-powered machine is a poor investment regardless of its price. Send an inquiry with your typical contamination, substrate and area for a detailed quotation.

The machine carries a 2-year warranty covering manufacturing defects in the gun, control electronics and safety systems, handled directly by Sigma rather than through an agent. Installation, commissioning, parameter setting and operator training are included, with spares held in India and service coverage across Gujarat, Maharashtra and key centres nationally.

The preset, multi-mode control system reduces the setup expertise needed compared with manually tuning abrasive blasting equipment for different jobs, but consistent results still depend on the operator maintaining a steady standoff distance and travel speed – a straightforward skill to train, and operator training is included with installation.

With correct installation, proper operating conditions and routine maintenance, industrial fiber laser equipment in this class is built for many years of production use. Because the machine has no abrasive media wear and minimal consumable-related degradation, service life depends mainly on duty cycle and basic optical maintenance rather than component replacement cycles common to abrasive equipment.

Yes, and for any contamination or substrate where cleaning speed or surface condition afterward is critical to your decision, we recommend it. A trial on your actual material is the most reliable way to confirm the right power tier before you commit capital.

The handheld gun and cable-connected source unit give it field flexibility, but practical considerations apply – power supply availability, fume extraction arrangements, and environmental protection for the source unit all need planning for outdoor or on-site use. Confirm your specific site conditions with our team before planning a field deployment.