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Details about MOPA laser marking machines
MOPA laser marking machines achieve precise marking on material surfaces through adjustable pulse width and ultra-high repetition frequency. Their biggest advantage is the ability to produce color effects while minimizing heat-affected zones, preventing material deformation or melting. The equipment typically has a power consumption of 20-100W, a compact size, and uses EZCAD or LightBurn software, making it suitable for high-end industrial precision machining.
Difference between MOPA laser marking machine and fiber laser marking machine：
| Aspect | MOPA laser marking machine | Ordinary fiber laser marking machine |
| Laser source type | MOPA (Master Oscillator Power Amplifier, Adjustable Pulse) | Q-switched fiber (fixed pulse) |
| Pulse width adjustment | Adjustable (2-200ns), allowing for flexible control of the thermal effect. | Fixed (100-200ns), narrow adjustment range |
| Frequency range | 1.6-1000kHz, high-frequency precision | 20-80kHz, basically continuous or low frequency |
| Marking effect | Colored, multi-layered (e.g., metallic black/gold/red), with fine, light markings. | Primarily black and white/grayscale, darker colors produce better results but have limited color options. |
| Thermal effect | Low (suitable for plastics/thin materials, no melting/bubbling) | Medium (prone to hot spots/deformation) |
| Applicable materials | Metals, non-metals, plastics, glass (fine/colored) | Predominantly metal, with simple markings |
| Machining accuracy | Height (±0.01mm), beam quality M²<1.1 | Medium (±0.05mm), beam quality M²<1.3 |
| Power range | 20-100W (Precision type) | 20-500W (Industrial Type) |
| Price | Higher | Lower |
| Applicable Scenarios | Fine craftsmanship, color marking, medical/electronic | Mass production of black and white markings, industrial parts |
| Shortcoming | High cost | Limited color options, large heat-affected zone |
Application scenarios of MOPA laser marking machine：
- Metallic Color Marking: Black/gold/blue logos or serial numbers printed on stainless steel kitchen utensils, mobile phone frames, and knives;
- Electronic Products: Anti-counterfeiting QR codes printed on mobile phone back covers, earphone shells, and PCB boards;
- Plastic Shallow Labels: Plastic bottle caps, keyboard keys, and automotive interior parts;
- Medical Devices: UDI codes printed on scalpels, implants, and dental tools;
- Jewelry Crafts: Colored openwork patterns on gold/silver surfaces;
- Packaging Labels: Date codes on food-grade plastic boxes and cosmetic bottles;
- Automotive Parts: Fine markings on hoods, wheels, and dashboards.
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