As a very popular seafood delicacy, crab's quality and source information are essential to consumers. In recent years, laser marking technology has become the preferred solution for marking anti-counterfeiting codes, origin and production dates on crab shells, not only to ensure traceability, but also to enhance product trust. However, in the face of the diverse laser marking equipment on the market, how to choose the optimal model according to its characteristics is a key issue facing the industry. This article will systematically introduce the selection process to help practitioners make informed decisions.
No matter what type of marking machine we choose, we must first clarify our own needs. Then it is very important to confirm the physical properties of crab species (such as hairy crabs or king crabs) and their shells, such as hardness and color. Hard-shelled crabs (such as the hairy crabs of Yangcheng Lake) require equipment with a high absorption rate to avoid blurred or damaged marking. Then we need to clearly mark the content, such as the QR code of the place of origin, the production date or anti-counterfeiting information, and set the clarity, depth and size standards to make the information long-lasting and readable. Finally, evaluate production efficiency: calculate the average marking time of a single crab (usually 0.5-2 seconds), and adjust the equipment parameters according to the speed of the production line to avoid bottlenecks. For example, high-speed production lines require short response times for marking machines to maintain smooth operation.
So for the unique material of crabs, we generally consider three main models：
Laser fiber marking machine: suitable for hard-shelled crabs (such as hairy crabs), laser fiber marking machine has excellent absorption rate of metal and some non-metallic materials, which can achieve high-speed and fine permanent marking.The characteristics of laser fiber marking machine include stable laser beam and fast marking speed (up to 7000mm/s), which is suitable for mass production to ensure clear marking and no damage to the housing.
Ultraviolet laser marking machine: suitable for high-end crab species (such as king crabs), especially in scenes that require micro-damage or fine marking.Its thermal effect is small, it can treat the surface non-destructive, and it is suitable for complex patterns or two-dimensional codes, but the cost is higher.
Fiber marking machine: Designed for non-metallic materials, such as crab shells, suitable for large-area marking needs. Fiber marking machine has obvious advantages in absorption efficiency, can quickly complete clear marking, and has low maintenance costs. It is suitable for medium and large-scale farms. In practical applications, fiber marking machine is commonly used in the anti-counterfeiting coding of hairy crabs in Yangcheng Lake, which can be flexibly customized through software editing.
In addition to the content mentioned above, equipment performance directly affects marking quality and efficiency. The laser power (such as the range of 40W-100W) needs to be selected according to the hardness of the shell: Generally speaking, we recommend higher-power laser marking machines for hard-shell crabs to verify the effect through sample tests to avoid being too deep or insufficient. The scanning speed should match the production rhythm: The high-speed galvanometer system can be increased to 7000mm/s to ensure the synchronization of the assembly line. During verification, it is necessary to check the consistency and stability of the mark, such as using the automatic calibration function to reduce errors.
Through our content introduction, you must have a more comprehensive understanding of how to choose a suitable laser fiber marking machine. Our Eagle Laser is a company specializing in the production and manufacture of laser fiber marking machines. We support you to customize the appropriate laser fiber marking machine according to your own needs. We welcome your inquiry!