Dot Peen Marking Machines for VINs, Serial Plates and Steel Parts
A dot peen marking machine presses a hard pin into metal, dot by dot, to write text, serial numbers, logos and Data Matrix codes that stay readable after paint or galvanizing. Pick by three things: can the part come to the machine, how deep the mark must be, and what power you have where you mark.
- Handheld or benchtop
- 0.05–1.0 mm deep
- Plug-in, battery or shop air
- English software, auto serials
By the HT Marker team
Pick the right machine in 4 questions
Can the part come to the machine? Yes: a benchtop marker (tags, plates, small parts). No: a portable dot peen marking machine you take to the part (frames, beams, pipe spools).
What power is at the spot? An outlet: plug-in electric, the lowest cost. No outlet: battery, 3–4 hours per charge. Shop air: pneumatic.
Deeper than 0.5 mm, or will it be hot-dip galvanized? Choose a pneumatic model (HS-PE01-P, HS-DE01-P or HS-DP01). Electric and battery models are made for 0.05–0.5 mm.
A full 17-character VIN? You need a marking window of at least 120 × 40 mm. HS-PE02 and HS-PE02-B (90 × 30 mm) are for shorter serials and part numbers.
Dot peen marking machine models
Fixed prices, in stock. Each card links to the full spec table.
Compare dot peen models
| Model | Type | Power | Computer? | Marking area | Depth | Full VIN? | Price |
|---|---|---|---|---|---|---|---|
| HS-PE02 | Handheld | Plug-in | No | 90 × 30 mm | 0.05–0.5 mm | No | $ 2,070 |
| HS-PE02-B | Handheld | Battery, 3–4 h | No | 90 × 30 mm | 0.05–0.5 mm | No | $ 2,300 |
| HS-PE02-B MAX | Handheld | Battery, 3–4 h | No | 120 × 40 mm | 0.05–0.5 mm | Yes | $ 2,350 |
| HS-PE01 | Handheld | Plug-in | No | 140 × 60 mm | 0.05–0.8 mm | Yes | $ 2,160 |
| HS-PE01-P | Handheld | Shop air | No, touchscreen | 140 × 60 mm | 0.05–1.0 mm | Yes | $ 2,500 |
| HS-DP01 | Benchtop | Shop air | Yes | 120 × 80 mm | 0.05–0.8 mm | Yes | $ 1,850 |
| HS-DE01 | Benchtop | Plug-in | No | 160 × 100 mm | 0.05–0.8 mm | Yes | $ 2,900 |
| HS-DE01-P | Benchtop | Shop air | No, touchscreen | 160 × 100 mm | 0.05–1.0 mm | Yes | $ 2,660 |
| HS-DE04 | Benchtop | Plug-in | No, touchscreen | 160 × 100 mm | 0.05–0.5 mm | Yes | $ 2,100 |
| HS-DE05 | Benchtop | Plug-in | Yes | 160 × 100 mm | 0.05–0.5 mm | Yes | $ 1,850 |
Depth is a range, not a promise: harder steel gives a shallower mark. Full VIN = the 120 × 40 mm window a 17-character VIN needs.
Choosing between the five handheld models? Our portable dot peen marking machines page compares plug-in, battery and pneumatic: run time, depth and what you need on site.
How dot peen marking works
A dot peen marker drives a hard carbide pin into the metal about 300 times a second. Two small motors move the pin along X and Y, so the dots join up into text, serial numbers, logos or a Data Matrix code. The mark is pressed into the metal, not burned or printed, so there is no ink, no heat and no fume.
The pin
A tungsten carbide pin does the marking. It is a wear part: it slowly dulls and can be replaced. Spare pins are sold separately; ask us for the price.
The drive
An electric coil (plug-in or battery models) or shop air (pneumatic models) pushes the pin. Pneumatic models need 0.3–0.6 MPa (3–6 bar) of air.
Motion and software
X and Y motors move the pin; a touchscreen or a PC holds the text. Serial numbers count up on their own or come from an Excel or TXT list.
- Hold the part stillClamp small parts under a benchtop marker. On big parts, hold a handheld marker flat or use its magnetic base.
- Enter the markType the text, load a logo, or pick the next serial number or Data Matrix code.
- Set force and speedMore force gives a deeper mark. Test on a scrap of the same metal first.
- Press startBoth benchtop and handheld models mark about 1–3 characters a second at 2 mm character height. Taller characters take longer.
Electric or pneumatic?
| Drive | Power | Depth | Noise | Our models |
|---|---|---|---|---|
| Electric | Plug-in or battery; no compressor | 0.05–0.5 mm (HS-PE01, HS-DE01 to 0.8 mm) | Quieter | HS-PE02, HS-PE02-B, HS-PE02-B MAX, HS-PE01, HS-DE01, HS-DE04, HS-DE05 |
| Pneumatic | Shop air, 0.3–0.6 MPa | Up to 0.8–1.0 mm | Louder | HS-DP01, HS-PE01-P, HS-DE01-P |
Curved, round and large parts
Slightly curved surfaces mark directly. For a mark all the way around a round part, the rotary model HS-DP01-R holds parts up to 100 mm in diameter; larger parts need a custom fixture. Parts too big to move get a handheld marker; see portable dot peen machines.
Dot peen is not the best choice for painted parts, very small text or photo-like logos; see when dot peen is not the right tool.
Which machine for which job
Trailer, chassis & frame VINsHS-PE02-B MAX or HS-PE01
A 17-character VIN needs a 120 × 40 mm window. US rules require the VIN to appear "clearly and indelibly" (49 CFR 565.13). Battery MAX for yards, plug-in PE01 in the shop.
Pipe, valves & flangesHS-PE02 with a pipe bracket, or HS-DP01
Small pipe: a handheld with a V bracket keeps the head square. Flanges and fittings at a station: the benchtop pneumatic HS-DP01. Pressure parts follow your code; some rules allow marks only on low-stress areas (49 CFR 192.63).
Nameplates & tagsHS-DE04 or HS-DE05
Same 160 × 100 mm window and 0.05–0.5 mm depth. HS-DE04 has its own touchscreen; HS-DE05 runs from your computer. More on the metal tag engraving page.
Steel that will be galvanized or paintedA pneumatic model
Mark the bare steel first, then coat it. The American Galvanizers Association asks for marks at least 13 mm high and 0.8 mm deep to read after galvanizing (AGA). That depth needs HS-PE01-P, HS-DE01-P or HS-DP01.
Not sure which model fits your part?
Tell us the part, the material and the text. Our team replies with the right model and settings.
Contact our teamHow deep do you need to mark?
Most jobs need 0.1–0.3 mm. That is enough for serial plates, frames and tools. Go deeper only when a coating will cover the mark or the part will be blasted.
0.8 mm is the depth the galvanizing industry asks for when marks must read after hot-dip galvanizing.
Harder steel, shallower mark
The same machine marks deeper in mild steel than in tool steel. Above HRC 60, no dot peen pin leaves a usable mark, so plan marking before heat treatment.
Over 0.5 mm? Go pneumatic
Electric and battery units are built for 0.05–0.5 mm. For deeper marks, shop-air models hit harder and stay consistent. Compare them on our deep and pneumatic dot peen page.
Noise
Pneumatic units are louder; electric ones are quieter. For a quiet shop or office, choose an electric benchtop.
When dot peen is not the right tool
What setup looks like
- Check the controllerHS-PE01-P, HS-DE01-P and HS-DE04 have touchscreens and need no computer. HS-DE05 and HS-DP01 run from a computer.
- Type the text, or load a listThe software is in English. Number serials automatically, add dates, or import an Excel or TXT file so each mark changes by itself.
- Try it on scrap firstAdjust force and speed on a scrap piece of the same steel. We help by email, WhatsApp, video call or remote session.
Dot peen marking machine questions
Which machines mark a full 17-character VIN?
Any model with a window of at least 120 × 40 mm: HS-PE02-B MAX, HS-PE01, HS-PE01-P, HS-DP01 and the DE benchtops. HS-PE02 and HS-PE02-B are for shorter serials.
Do I need an air compressor or a computer?
HS-DP01 needs both. HS-PE01-P and HS-DE01-P need air only. HS-DE04 and HS-DE01 need neither. HS-DE05 needs a computer. HS-PE02 and HS-PE01 plug in; the HS-PE02-B series runs on battery.
How deep can dot peen mark stainless steel?
Electric and battery models mark 0.05–0.5 mm; HS-PE01 and HS-DE01 reach 0.8 mm; the pneumatic HS-PE01-P and HS-DE01-P reach 1.0 mm. Stainless is harder than mild steel, so the same setting gives a shallower mark. Test on a scrap of your steel first.
Electric or pneumatic: which do I need?
Electric for most marks up to 0.5 mm, quiet shops and work away from a compressor. Pneumatic when marks must be deeper than 0.5 mm, for example before galvanizing or blasting.
Can it mark hardened steel?
Yes, up to HRC 60. The harder the steel, the shallower the mark. Above HRC 60 no dot peen pin leaves a usable mark, so mark before heat treatment when you can.
Can it mark curved or round parts?
Slightly curved surfaces mark directly. For 360° marks on shafts and pipes, the rotary model HS-DP01-R holds parts up to 100 mm in diameter; larger parts need a custom fixture.
Will the mark still read after hot-dip galvanizing?
Yes, if it is deep enough. Mark bare steel at about 0.8 mm deep and 13 mm high, as the galvanizing industry advises. Use a pneumatic model for that depth.
Can it mark Data Matrix codes?
Yes. Data Matrix is the dot-based 2D code used for part marking, and it suits dot peen. It marks along with text, serials and logos. For codes that must pass a grade, check the first parts with a code verifier.
Which metals can it mark?
Mild and stainless steel, cast iron, aluminum, brass and copper. Softer metals mark deeper at the same setting. Very thin sheet (under about 1.3 mm aluminum) can show the dots on the back, so support it on a flat steel plate.
What do I get after ordering?
Usually ships in 3–7 business days. We can send photos or a test video of your unit first. Support is by manuals, video, email, WhatsApp and remote session, with a 1-year warranty on the mainboard and core parts.
Tell us what you need to mark
Part photo, material, the text or code, depth and how many parts a month. Bulk, OEM and custom fixtures welcome.