Five Practical Methods for Raising Laser Marking Efficiency

Want to increase laser marking efficiency? The key is to adjust parameters. Here are five practical tips for optimizing core parameters such as laser power, scanning speed, and fill spacing, to solve problems such as slow marking speed and unclear results, and to achieve efficient and precise processing with ease.

The laser power is adjusted to match the material characteristics.

The power of the laser directly affects the depth and speed of the marking.If the power is too high, it can burn the material, but if it's too low, the marking won't be clear.For example, metals require high power output (60-80 %), while plastic or wood should be tested from 30 % upwards.In practice, the best value can be found by testing the material first to see how clearly the color appears and how much damage is done to the material.

The speed of the scanner has been improved.

Adjust the speed according to the complexity of the graphic.

For simple lines or text, you can try a high scan rate of 800-1200 mm / s, but for complex patterns it's recommended to go below 500 mm / s.If the speed is too high, the corners will be blurred, but if it is too low, the overall efficiency will be reduced.

The system is designed to maintain power balance.

Increasing the power (e.g. by 10-15 %) during high-speed scanning can prevent the problem of colors being too light due to the short duration of the laser, and can maintain a steady marking effect.

Adjust the spacing to avoid repeated processing.

If the spacing is too large, the design will have too much white space, but if it is too small, the process will take too long.For regular text, a spacing of 0.05 mm is recommended, and for large areas of filled patterns this can be relaxed to 0.1 mm.If you want to achieve a mirror finish, we recommend using 0.03-mm dot matrix filling, and high-frequency pulse mode will give you an even finer finish.

Focus the lens to ensure accuracy.

Regularly check the lenses for cleanliness.

If the lens is dirty, the laser's energy will be reduced by more than 20 %.Clean the lenses with a special cleaning agent once a week, especially after processing materials such as PVC which are prone to producing smoke.

Use a focus finder.

Many devices today come equipped with a red dot to help the user focus on the material and lock the height of the Z axis, avoiding issues with the focal length being off.

Setting the frequency of the pulses to reduce heat damage.

High frequencies (such as 50kHz) are more suitable for fine patterns, while low frequencies (below 20kHz) are more suitable for deep carving.When engraving thin materials, it is recommended to use the "intermittent cooling" function, which pauses for 0.3 seconds after every 2 seconds of engraving, which can effectively prevent deformation.When encountering a strong reflection from a metal surface, one can try lowering the frequency and adjusting the power to reduce interference from the reflected light.