4. Key Purchasing Parameters Beyond Power
Shenzhen, China
Published: Jul 3, 2026
4. Key Purchasing Parameters Beyond Power
Marking Area (Work Area)
The marking area defines the maximum size you can mark in a single pass without moving the workpiece.
| Common Sizes | Best For |
|---|---|
| 70×70mm | Small parts, jewelry, medical instruments |
| 110×110mm | Standard industrial parts (most common) |
| 175×175mm | Larger panels, multi-part fixtures |
| 200×200mm+ | Oversized components, signage |
Pro tip: Buy only the marking area you need. Larger galvo scanners cost more and can slightly reduce spot quality at the edges. 110×110mm is the industry sweet spot.
Marking Speed
Measured in mm/s or characters/second. For fiber lasers:
- Standard text marking: 200–700 mm/s
- Vector graphics: 100–500 mm/s
- Raster filling (logos, photos): 50–300 mm/s
Speed interacts with power and frequency. A 20W laser at 300mm/s produces similar mark contrast to a 30W laser at 450mm/s on the same material.
Marking Precision
Precision depends on:
- Beam quality (M² factor): Closer to 1.0 = better focus = finer detail
- Galvanometer quality: Better scanners = more accurate positioning
- Field lens (F-theta lens): Longer focal length = larger marking area but larger spot size
Typical fiber laser marking precision: ±0.01mm repeat positioning accuracy
Z-Axis Adjustment
For parts with varying heights, you need either:
- Manual Z-axis: Crank to adjust focus (budget-friendly)
- Motorized Z-axis: Software-controlled autofocus (production environments)
- 3D dynamic focusing: Marks on curved or uneven surfaces automatically (premium)
