HeatSign is a marking specialist. Since 2016 we have sold, tested and supported one kind of equipment and nothing else. That is why our engineers can tell you quickly whether a machine will put a clear, readable code on your part.
Marking is not a product line we added later. It is the whole business. Dot peen, fiber laser, MOPA, CO2, UV, flying laser and 3D crystal engraving are seven different jobs. Each one has its own production line, set up for that technology only.
We control everything that decides whether a machine is right for your part. The design. The engineering. The way it is configured. The testing before it ships. And every conversation you have with us after it arrives.
Our sales and operations center is in Wuxi, Jiangsu,China. Customers in more than 40 countries run our machines — from one-person workshops to production lines that mark thousands of parts a shift.
Two questions we get before almost every order
These two rooms answer them faster than any spec sheet.
The sample room — “Can you mark my material?”
Thousands of test marks on real parts — stainless steel, aluminum, titanium, brass, anodized finishes, plastics and glass. Before we quote a machine, we check whether we have already marked your material. Most of the time we have. If we have not, send us the part. We will mark it and send you photos.
The warehouse — “How soon can it be here?”
We keep standard models and the main spare parts on the shelf. That is why a standard dot peen marker ships in three to five working days instead of waiting to be built, and why a replacement board leaves within one to two days.
What we do ourselves
01 — Design and R&D
We shape the product
Our engineers work on the design and development of the machines we sell. New models start from problems customers brought to us, not from someone else's catalog.
02 — Production
One line per technology
Each technology is built on its own line, set up for that technology only. A line that builds nothing but fiber lasers builds better fiber lasers. That is what keeps quality the same from unit to unit.
03 — Testing before shipping
Checked, then released
Every machine is run in before packing. Every laser has its real output power measured. Nothing ships on the assumption that it is fine.
04 — Support for life
The same team, years later
The people who set up your machine help you fix it in year five. Remote support does not stop when the warranty ends.
The people behind the machines
A machine is only as good as the people who pick it for you and answer the phone afterward. So here is who you will actually be dealing with.
HeatSign is run by marking specialists. There is no call center, and no account manager who has never seen a marking machine run. The engineer who works out which machine fits your part is the same person you can reach a year later, when you want to mark something new.
Who you will deal with
Three people handle a normal order. Depending on the machine, one person may cover more than one of these — and you will know them all by name.
01
Before you buy — a product specialist
Works out which machine suits your part, your material and your cycle time. This is the person who will tell you a cheaper machine would do the job, or that dot peen is a better answer than laser for what you make.
02
During the order — one contact
Stays with you through configuration, testing, packing and shipping. Sends you photos of your own part, marked on your own machine, before it goes in the crate.
03
After it arrives — a support engineer
Handles remote diagnosis, spare parts and operator training. Replies within one business day, in English or Chinese, for as long as you own the machine.
“I kept meeting people who had bought the wrong machine.Nobody had told them what it could not do. So we built a company that does.”
Gunayue Hang — Founder, HeatSignHow your machine is built and tested
From loose parts to a crate on a pallet, every unit goes through the same five stages. No machine skips one because an order is urgent.
01 — Assembly, hardest parts first
Trained technicians start with the laser head or the marking head, then work outward to the simpler parts. Alignment is checked at each stage instead of being corrected at the end.
02 — Output power measured (laser machines)
Every laser machine has its real output power measured against the spec before it is released. If a 30W laser only puts out 24W, you will be disappointed six months later and you would have no way of knowing why.
Rated power and real power are not always the same number. We check the machine you are buying, not the model in general.
03 — Burn-in run, 48 to 72 hours
Every machine we ship runs non-stop for two to three days before it is packed. Dot peen, laser, cleaning — all of them.
Parts that are going to fail usually fail early. This is where those failures happen: in our hands, not on your production line in week three.
04 — Sample marking check
We mark a test part and check the depth, the contrast and whether every mark comes out the same. If you sent us your own part, we mark that one and send you photos before the machine ships.
05 — Packing
Clear film wrap, then foam padding, then a plywood crate built to moisture-proof standard. Larger machines get a thicker custom crate.
Your machine has a record
For most machines we can look up how yours was built from the serial number. So when you contact us in year three about a part, we can check what you actually have instead of asking you to photograph the inside of the cabinet.
Certifications and compliance
We list only what we actually hold.
CE
Conformity for the European market, covering machinery safety and electromagnetic compatibility.
RoHS
Limits on hazardous substances in electrical and electronic equipment.
FDA / CDRH
HeatSign laser machines are reported to the FDA CDRH under 21 CFR 1040.10, accession number 2622236-000. US entry requires this product report for laser equipment.
Standards our machines are used to meet
Customers use HeatSign equipment to produce marks that meet the standards below. We supply the machine and the settings. The certification belongs to your part, not to our machine.
Standard | Used in | What it covers |
|---|---|---|
MIL-STD-130 US Department of Defense | Defense | Unique item identification marking on military property, including the data matrix and the human-readable text beside it. |
AS9132 SAE International | Aerospace | Dot peen and laser data matrix quality for direct part marking, including dot size, spacing and depth limits. |
ISO/IEC 29158 ISO / IEC | Cross-industry | How a direct part mark is graded for readability, from A down to F. Often quoted as the DPM grade in supplier audits. |
FDA UDI US Food and Drug Administration | Medical devices | Unique device identification marked directly on reusable instruments that are cleaned and sterilized between uses. |
EU MDR UDI European Commission | Medical devices | Device identification for the European market, with its own database and labeling rules separate from the US system. |
Not sure which one applies to your part? Send us the drawing and the industry, and we will tell you what the mark has to achieve before we quote a machine.
What we can build for you?
More than 30 models across seven marking technologies, plus the engineering to adapt any of them to your part. Most jobs are solved by a standard machine set up correctly — and we will tell you when that is the case.
The range
Each technology exists because the others cannot do that particular job. Choosing between them is the first conversation we have with you.
Technology | Marks | Choose it when you need |
|---|---|---|
Steel, cast iron, aluminum, most metals | A mark deep enough to survive shot blasting, heat treatment and paint. VIN and chassis marking. | |
Metals and coated metals | Fine data matrix codes, logos and serial numbers at speed, with nothing to replace and no consumables. | |
Metals and many plastics, on a moving line | Dates, batch codes and serials on a running production line. No ink, no solvent, nothing to refill. | |
Stainless steel, anodized aluminum | Color marking, white marks on anodized parts, or thin coatings marked without damaging the metal underneath. | |
Wood, leather, glass, paper, many plastics | Marking on materials a fiber laser cannot touch. | |
Heat-sensitive plastics, glass, ceramics | A mark on a delicate material that a fiber laser would burn, melt or discolor. | |
Optical crystal and glass | Awards, gifts and personalized pieces engraved below the surface, leaving the outside untouched. |
Not sure which row is yours? Send us the part and the material, and we will tell you which technology fits before anyone talks about price.
Also available: laser cleaning machines, used to strip rust, paint or oxide off a surface before marking. View laser cleaning machines →
How far customization goes?
Most enquiries start with a part we have not seen before. Sometimes the answer is a standard machine with the right lens and a rotary axis. Sometimes it is a fixture, a conveyor and a PLC.
We work through four levels, and we start at the lowest one that will actually solve your problem. Selling you level four when level one would have worked is how a supplier loses the next order.
Send us a part drawing or a photo with dimensions, and we will tell you which level you are looking at before anyone talks about price.
Level | What changes | Effect on lead time |
|---|---|---|
01
Configured standard machine
| Laser power, lens and marking field, rotary axis, worktable, enclosure, safety class. | No change |
02
Custom fixturing
| Jigs and holders built around the shape of your part, so operators load it the same way every time. | A few days more |
03
Software and data
| Automatic serial numbers, date and shift codes, database or ERP/MES link, barcode read-back check. | Quoted |
04
Integrated system
| Conveyor, sensors, PLC control, robot or rotary indexing, multi-station, full safety enclosure. | Quoted per project |
Most parts are solved at level 01. Send us a drawing or a photo with dimensions and we will tell you which level you are looking at, before anyone talks about price.
Not sure which level your part needs? Send us a drawing or a photo with dimensions and we will tell you, before anyone talks about price.
For distributors and integrators
We work with distributors in markets where we have no direct presence. If you already sell into workshops, factories or engraving businesses, marking machines fit next to what you sell now.
- One supplier, seven technologies. Your customer asks for dot peen this month and a UV laser next month. Both come from the same place, on the same terms.
- Stock on the shelf. Standard models and main spare parts are held in the warehouse, so you can promise a delivery date and keep it.
- OEM branding on request. Your logo on the machine and on the software, where the model allows it.
- Training and technical backup. We train your team so most questions get answered without waiting for China office hours.
- Territory discussed up front. Tell us your market and we will be straight with you about who else is already there.
Send us your market, the industries you serve and the machines you sell today. We will tell you whether it is a fit before asking you for anything.
Before, during and after the sale
You are handled by specialists at every stage, not passed between departments and asked to explain yourself again.
Before you buy, a product specialist works out which machine suits your part, your material and your cycle time. Sometimes that means recommending a cheaper machine than the one you asked about, or telling you that dot peen is a better answer than laser.
During the order, one contact stays with you through configuration, testing, packing and shipping. You always know who to ask.
After the machine arrives, our support engineers take over. Every machine is covered for one year and we reply to every request within one business day. When something fails, we diagnose it remotely and ship you the faulty part, so your machine stays on your floor.
Remote support does not stop when the warranty ends. If you own a HeatSign machine, our engineers will help you troubleshoot it in year one or in year seven.
Full warranty terms, response times and spare parts policy →