In May, we customized a 30W fiber laser marking machine for a customer in Vietnam. The customer provided excellent feedback and reported very high-quality marking results. He also sent us a thank-you email with his feedback. Below is the text of the email, written by the customer himself:

we are a nut processing center located in Vietnam. We specialize in manufacturing different kinds of metal nuts – hex nuts, lock nuts, flange nuts and other fasteners made from steel, stainless steel and sometimes aluminum. Every day our workshop produces a large quantity of nuts, and we need to mark them with logos, size information, batch numbers or serial codes.Before we started using the fiber laser marking machine from JQ Laser, marking the nuts was always troublesome. Nuts are small metal parts, and the surface is limited. We used to rely on traditional methods like stamping or stickers. Stamping sometimes deformed the threads or left uneven marks. Stickers would fall off easily during transportation or when the nuts were exposed to oil and heat. The marking quality was inconsistent, and it slowed down our production line. For a busy nut processing center like ours, this was really a headache.We began searching online for a better way to do permanent marking on metal nuts. We came across JQ Laser’s website and saw that they are a professional manufacturer of fiber laser marking machines, especially good at metal marking applications. We contacted them and explained our situation – we needed clear, permanent marks on small metal nuts without damaging the threads or the surface.The JQ Laser team was very helpful and patient. They asked about the materials we use (mainly carbon steel and stainless steel) and the type of marks we need (logos, size codes, batch numbers). They also offered free material testing, which gave us more confidence. After discussing the details, we decided to purchase their fiber laser marking machine. Being a factory-direct manufacturer, the price was competitive, and the machine configuration suited our nut production needs well.When the machine arrived in Vietnam, setup was straightforward. The team provided clear guidance, and we could get remote support when needed. Our operators learned the system quickly. The software is user-friendly – we can easily import logos, set sequential numbers or batch codes, and adjust the marking parameters for different nut sizes.Now in our daily production, this fiber laser marking machine has become an important part of the workshop. We use it to laser mark logos, size specifications, material grades and batch numbers directly onto the surface of the nuts. The marks are sharp, clear and permanent. Even on small hex nuts, the details remain readable. Unlike the old methods, the laser does not damage the threads or the overall quality of the nut. The marks stay clear even after the nuts go through plating, oiling or long-term use.Speed is another big advantage. Our nut processing center runs high-volume production. The fiber laser marking machine works fast and can keep up with the output from our CNC and cold-heading machines. We no longer have bottlenecks at the marking stage. The process is clean, with almost no consumables, so the running cost is low and maintenance is simple.The precision of the fiber laser is excellent for small metal parts like nuts. Whether we mark a simple size code or a more detailed logo, the result looks professional and consistent. Our customers have noticed the improvement. The permanent laser marks make our products look more standardized and easier to identify, which helps with quality control and traceability.Whenever we had questions about adjusting parameters for different steel grades or nut sizes, the JQ Laser support team responded quickly and gave practical advice. Their technical support is reliable, which is very important for a production factory like ours.Looking back, choosing the fiber laser marking machine from JQ Laser was the right decision for our nut processing center. It solved the long-standing marking problems, improved the appearance and traceability of our metal nuts, and increased overall production efficiency. In the competitive fastener industry here in Vietnam, having clear and permanent laser marks on every nut helps us deliver better quality to our customers.If other nut manufacturers, fastener factories or metal processing workshops are looking for a practical laser marking solution for small metal parts, we are happy to share our experience. The fiber laser marking machine works very well for steel and stainless steel nuts, and the support from JQ Laser makes the whole process smooth.Thank you to the JQ Laser team for providing a reliable machine and good service. We are satisfied with the results and continue to use it every day in our production.