Inside the SEAGULL2: A Walkthrough of HANTENCNC's Portable Pulsed Laser Cleaner

Most laser-cleaner buyer's guides talk about the technology in the abstract. This one is different. Here we take you through our own portable pulsed cleaner — the SEAGULL2 — exactly as it sits in our workshop: real dimensions, the actual control panel, the eight scan patterns the operator chooses from, and what the beam looks like when it lifts rust, paint, and oxide off real parts. If you're shopping for a portable pulsed laser cleaner and want to see what you'd actually be operating, this is the closest you can get without standing in front of one.

What it is, in one line

The SEAGULL2 is a portable, air-cooled, pulsed fiber laser cleaning machine in a wheeled trolley format, designed for a single operator to roll between bays, sites, and parts. It comes in two power options:

• 200W — $8,888
• 300W — $9,999

It sits in the same family as our higher-power 500W SEAGULL3 and the budget air-cooled CW SEAGULL4. The SEAGULL2 is where most small-to-medium fabrication shops, restoration shops, and on-site maintenance teams start, because the trolley format and the 200W class hit the right balance of capability and portability. For a wider comparison across our range, see how to choose the right laser cleaning machine.

Size, weight, and the format

We measured what's on the spec plate so you don't have to guess:

That footprint matters. At 510 × 250 × 450 mm and 27 kg, the SEAGULL2 fits through any normal workshop doorway, rolls between bays without lifting, and lives on a bench end when it's not in use. One operator can move it — no two-person lift, no forklift, no waiting for the workshop foreman.

The side-mounted pouch with red straps (visible in the side profile) is where the cleaning gun, fume-extractor accessories, safety eyewear, and spare optics live when you move between jobs. The flat panel on top doubles as a small work surface for setting parts or paperwork.

The pull rod rotates 180° and folds down flat against the body, which is the difference between a machine that wheels neatly under a bench and one that fights you for space. If you've used trolley-style welders, you already know the format.

For a wider discussion of why air-cooled portable units beat large water-cooled industrial machines for most shops, see air-cooled vs water-cooled laser cleaner.

What's on the back panel

The back panel is where the operator's day begins. Three things to know:

• The red emergency stop at the top — twist to release on startup, palm-strike to engage during an emergency. Standard industrial e-stop, hardwired to cut laser output instantly.
• The key/lock switch below it — this is the master enable. The machine won't fire without the key turned, and combined with the password login on the screen (we'll get to that), it gives you two-factor control over who can actually run it. Useful in a shop where you don't want the laser firing because someone bumped a button.
• The cable port and air supply — the black ribbed conduit carries the fiber and electrical to the handheld cleaning head. The orange line is the compressed-air supply for the head's air-assist, which keeps debris off the protective lens and improves cleaning consistency.

The startup routine is short: release the e-stop, turn the key, plug in the head's cable and air, and the touchscreen wakes up. That's it — no chiller to fill, no purge sequence, no warmup wait that loses you half an hour every morning. This is the air-cooled advantage in practice.

The control panel

First thing you see when the screen wakes: a login. User and password, with a numeric keypad. We added this deliberately. Laser cleaners are powerful tools — combined with the key-switch on the back, a password means only trained operators can fire the machine, and you have a record of who logged in when. Small shops sometimes ignore this; bigger operations care a lot about it.

Once you're in, two screens do the technical work.

Laser parameter screen

This is where you tune the beam itself. Four fields matter:

• Power (%) — laser output as a percentage of the machine's maximum. 100% on a 200W unit is 200W; on the 300W variant it's 300W. You drop this for delicate work (light surface oxide on thin sheet), push it up for heavy coatings.
• Frequency (kHz) — how many pulses per second the laser fires. Higher frequency means more pulses per area at the same scan speed, which usually translates to faster, cleaner removal on light contamination.
• Pulse Width (ns) — the duration of each pulse in nanoseconds. The default shown in the photo is 500 ns. Shorter pulses concentrate energy in time and tend to be gentler on the substrate; longer pulses deliver more energy per pulse and are more aggressive.
• Air On / Air Off Delay (ms) — the air assist turns on slightly before the laser and stays on slightly after. Defaults shown: 200 ms off-delay. This keeps debris from settling on the lens between pulses.

If you've used a pulsed cleaner before, this screen is familiar. If you haven't, our piece on what factors affect laser cleaning results walks through what each parameter does to the outcome — and our note on how laser cleaning works covers the physics.

Swing/scan parameter screen — the eight patterns

This is the screen that separates the SEAGULL2 from a basic spot cleaner. The galvanometer head inside the cleaning gun sweeps the beam through a programmed pattern — the swing — and you choose from eight patterns:

1. Line — straight back-and-forth, the default for rust and paint stripping.
2. Mesh / woven — overlapping diagonal passes for fuller coverage.
3. Circle — for circular cleaning zones on flange faces, bolt heads, machined bores.
4. Raster lines — tight parallel passes, similar to line but with a different fill behavior.
5. Concentric circles — bullseye sweep, useful for tapered cleaning on round parts.
6. Grid — crosshatch coverage for thorough surface preparation.
7. Flower — radial sweep from a center point.
8. Infinity (∞) — figure-eight pass for blending and edge work.

The parameters you tune for each:

• Size X / Size Y (mm) — the bounding box of the swing pattern. Max 60 mm × 60 mm.
• Speed (mm/s) — how fast the galvo moves the beam through the pattern. Up to 35,000 mm/s — that's 35 metres per second of beam travel, which is what makes laser cleaning fast on large flat areas.
• Rotate Angle (°) — rotates the entire pattern, useful when you're cleaning along a weld that isn't aligned with the X axis.
• Fill Interval (mm) — the spacing between lines in raster fills. Default shown: 0.20 mm. Tighter spacing = more overlap = slower scan but cleaner result; wider spacing = faster but with stripes if you push it too far.

Some patterns expose extra parameters when you select them — the mesh pattern, for instance, adds Sine Num. (waveform count), Phase Move, and Amplitude controls. You won't use most of these every day; the line pattern at default settings handles 80% of jobs. The extras are there for when you need them.

The operation screen

The main screen during cleaning is deliberately simple: a big Ready indicator in the centre, with three buttons — Sway (start the galvo sweeping), Air (turn on the air assist), and Laser (enable the beam to fire on trigger pull). Across the top sit shortcuts back to Swing and Power. Operator-friendly: even someone new can run the machine after a short induction, because they're not buried in menus.

The cleaning head — what you actually hold

The handheld head is the part you'll hold for hours. Branded ZBTK on the body, it's compact, balanced for one-handed use, and built around a few key parts:

• The focusing lens at the muzzle end — anti-reflective coated, which gives it the blue-violet tint visible in the close-up. This is the optic that shapes the beam onto the surface.
• The protective window — sits in front of the focusing lens, sacrificial to spatter and debris. This is the routine consumable we cover in laser cleaning machine maintenance.
• Dual top connectors (gold/brass fittings) — one for the fiber from the source, one for the compressed-air assist line.
• Cooling vents on the head body — passive airflow keeps the optical assembly stable during long runs.
• The trigger in the grip — squeeze to fire when Laser is enabled on the screen.

That small red dot you can see through the lens is the visible aiming pointer. The cleaning laser itself is infrared and invisible; the aiming pointer is a low-power visible laser co-aligned with the working beam so you can see where it will hit. It's how you position the head accurately on the work — line up the dot, pull the trigger.

What it cleans, in real life

Talking about laser cleaning is one thing; here's what it actually does on parts.

The action close-ups show the laser working through different swing patterns on different substrates — you can see the bright plasma plumes where the pulses are vaporizing contamination, sparks lifting off, and the cleaned area emerging behind the head as a polished band. The red dots scattered through the frames are the aiming pointers; the cone of light is the beam at work.

The cleaned areas tell you what's happening: the rectangular bands are line/raster patterns, the circular spots are circle or concentric-circle patterns, the curving sweep is the swing in motion. The pattern you pick depends on the geometry of the part and the contamination you're removing.

The applications matrix shows what the SEAGULL2 handles in our own demos:

• Rust removal — gears, brackets, machined parts. The classic application; the laser lifts oxide while leaving the sound steel beneath. Our deeper dive: how a laser cleaning machine removes rust.
• Oil stain removal — even oily, greasy parts clean up; the laser vaporizes the organic contamination. See can laser cleaning remove oil stains and grease.
• Wood paint removal — yes, wood. The laser can strip paint from wooden cabinetry and furniture without sanding. The full picture: laser wood stripping and restoration.
• Oxide layer removal — heat scale and mill oxide from steel surfaces, including the heat-affected zones around welds. Particularly relevant for stainless work, covered in laser cleaning stainless steel heat tint.
• Paint removal — coatings on metal substrates, including pre-weld stripping and surface prep for re-coating.
• Outdoor stain removal — yes, in the field. The shot of a gloved operator working a SEAGULL2 head against a concrete wall is real — portable air-cooled means you can roll it to where the work is.

The full material scope is in what materials can be laser cleaned, and the contaminant scope in what contaminants can laser cleaning remove.

Who should buy the 200W, and who should jump to 300W

The two variants exist because the same body covers two slightly different jobs:

• 200W ($8,888) — the right pick for restoration shops, small custom fabrication, mold cleaning, and selective work where control matters more than throughput. Plenty for thin sheet metal, classic-car panels, fine detail work, and pre-weld stripping along joints. Most first-time buyers are well served here.
• 300W ($9,999) — choose this when you'll regularly clean larger areas, heavier coatings, or work where production speed matters. The extra 100W shortens cycle time on bigger parts.

If you genuinely don't know which fits, our how much power do you need for laser cleaning guide maps power bands to jobs. And if your work is heavier still — pipeline yards, refinery prep, large tank shells — you're in 500W SEAGULL3 or DOLPHIN 1000–2000W industrial territory, covered in our pipelines, tanks, and oil & gas guide.

Operating it safely

Standard pulsed-laser cleaning safety applies to the SEAGULL2 like any other machine:

• Laser safety eyewear rated for the working wavelength, for everyone in the work area. Not optional.
• Fume extraction at the head — vaporizing paint, oil, rust, or coatings produces fumes that you don't want to breathe. Particularly important on galvanized steel (zinc fumes are a serious health issue; see laser cleaning galvanized steel).
• Controlled work zone — beam stays on the work, interlocks intact, no one walks into the firing line.
• Lockout when not in use — the key switch + password login are the controls; use them.

Our broader safety overview is in is a laser cleaning machine safe and paint-removal safety.

The honest summary

The SEAGULL2 isn't the most powerful machine in our range — that's the DOLPHIN. It isn't the cheapest — that's the SEAGULL4. What it is, is the most useful single machine for most workshops that need portability, control, and the precision of pulsed cleaning. The 27 kg / 510×250×450 mm trolley format goes where you go; the 8 swing patterns, the air-cooled simplicity, and the touchscreen UI with password protection together make a tool that one operator can be productive on the first day.

If your work is restoration, fabrication, mold cleaning, mixed-material prep, or any field service where you bring the tool to the job, the SEAGULL2 is the starting point we suggest by default.

See the full SEAGULL2 product page, browse the pulsed cleaner range, or contact us with your typical parts and contaminants — and we'll point you to 200W or 300W based on the work, not on what you might "grow into."