You have a production quota and a marking step sitting between the part and the box. Before you can plan throughput, you need a straight answer on how long the laser actually takes. The honest version is that marking time depends on how many vector lines the laser has to draw, how fast it draws each one, the material under the lens, and how deep the mark has to go. A simple surface mark on anodized aluminum runs in seconds. A deep engraving into steel can take ten times longer. And the marking time itself is only part of the picture, because handling the part often takes longer than marking it. Here is how each of those factors plays out, with real numbers from our job shop floor.
Laser marking can take a few hundred milliseconds for a single-line stick font, 2 to 3 seconds for small bold text on anodized aluminum, or about 25 seconds for a .010-inch deep engraving into steel. The real throughput number also depends on part handling, because loading, locating, unpacking, and repacking can take longer than the mark itself.
A laser marker does not lay down a mark the way a printer drops ink. It draws line by line. A single line drawn by the laser is usually 0.002 to 0.004 inch wide, so a 0.1-inch tall bold character gets filled in with many of those lines stacked side by side. Swap that bold character for a thin single-stroke font and the laser draws a fraction of the lines, which is why font choice alone can change marking time by an order of magnitude.
Material and depth then layer on top of line count. A surface mark that only removes a coating finishes fast. A mark that has to cut into metal takes multiple passes, and each pass adds to the clock.
At Jimani we estimate marking time from the actual vector file before we quote a job, so the number you get reflects your part and your artwork rather than a generic average. Our fiber laser marking FAQ covers the throughput and cost questions that come up most often.
Anodized aluminum is one of the fastest materials to mark because the job is ablation, removing the thin anodize layer to expose bright metal underneath, rather than cutting into the part. The laser only has to clear a surface coating, so it can move quickly.
The variable that moves the clock most here is the font. A bold filled character is dozens of short fill lines. A stick font is one stroke per stroke of the letter. When you are marking thousands of nameplates, that difference compounds across the entire run and shows up directly in your shift output.
A large share of our job shop work is ablation marking on anodized aluminum, from serial plates to logos, where high contrast and fast cycle times have to land together.
Engraving and ablation are different jobs. Ablation removes a coating and measures depth in microns. Engraving cuts into the base metal and measures depth in thousandths of an inch. Deep engraving works best at marking speeds of about 5 to 10 inches per second using multiple passes, each one removing a thin slice of material.
Try to remove it all in one slow pass and you get a slaggy trough bottom with slag piled at the edges. Multiple passes at higher speed, with different fill angles, give cleaner troughs and cleaner edges. Some jobs require the depth no matter the time cost. Firearms marking often carries a depth specification so the mark cannot be easily removed, and that requirement sets the cycle time rather than the other way around.
Deep laser engraving into steel is routine work in our shop, and we size the pass count and speed to hit the depth spec without leaving a rough mark behind.
This is where throughput estimates go wrong. Picture a logo and a part number on a credit-card-sized piece of anodized aluminum. The mark might take a second or two, but if each part has to be unwrapped and rewrapped, handling dominates the cycle. When parts arrive bulk packed instead of individually wrapped, an operator can move much faster.
In our shop, a simple mark on bulk-packed anodized parts can run on the order of 300 parts an hour, and nearly all of that throughput is governed by handling, not by the laser. That is why "how fast does the laser mark" is the wrong question to plan a run around. The right question is how fast you can get parts in and out of the marking field.
Our job shop pricing is built on a standard shop rate for the time a job actually takes, which is why we look at handling and marking together when we quote.
Galvo manufacturers quote eye-catching numbers, sometimes hundreds of characters per second. Real marks rarely look like one long straight line. They are made of many short fill lines, and for each line the galvos have to position the beam, settle, accelerate, draw, decelerate, and stop before repositioning for the next line. Those start-and-stop moves eat the time.
That is why raw galvo speed is a poor proxy for how fast a real part will mark. The material and the design drive the actual number far more than a headline speed figure does.
We spec systems around the marking workload a shop actually runs, not a best-case speed on a single straight line.
The most reliable way to get a real cycle time is to stop estimating and mark the actual part. Send us a sample and we will mark it, time it, and tell you exactly what your throughput looks like.