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JPT MOPA Laser Marking Machine for Color Marking on Stainless Steel

The JPT MOPA (Master Oscillator Power Amplifier) fiber laser marking machine represents a cutting-edge solution for achieving high-contrast, permanent, and vibrant color marks on stainless steel surfaces. This advanced technology enables precise control over laser parameters, which is crucial for the color marking process.

By accurately adjusting the laser's pulse width, frequency, power, and scanning speed, the JPT MOPA laser induces a thin oxide layer on the stainless steel surface through a thermal effect. The thickness of this oxide layer, which can be meticulously controlled, determines the color observed due to thin-film interference. This allows for the creation of a wide spectrum of colors—including black, gold, bronze, red, blue, and green—without the use of any inks, dyes, or additional consumables.

The applications are extensive across industries requiring both aesthetic appeal and permanent traceability. Common uses include:

• Decorative & Premium Branding: Adding logos, designs, and serial numbers on consumer electronics, jewelry, watches, and high-end kitchenware.

• Industrial & Functional Marking: Producing color-coded components for easy identification, permanent QR codes, barcodes, and data matrix codes for anti-counterfeiting and supply chain management.

• Medical & Surgical Instruments: Creating biocompatible, corrosion-resistant, and highly durable marks for instrument identification and tracking.