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How to Choose a Laser Marking Machine?

May 07, 2022

How to choose a suitable laser marking machine for the friends who have just come into contact with the marking machine? Before choosing a laser marking machine, let us first determine one thing, what kind of products do we want to mark when we buy a laser marking machine? What effect do you need to print? What material is this product made of? Different materials choose different marking machines.

Distinguish by material

Metal marking machine:

As the name implies, the metal marking machine is to mark on metal materials, and its requirements are relatively high because marking and engraving on metal materials needs to meet high-precision processing requirements.

Application requirements: for electronic and electrical components, hardware products, tool accessories, integrated circuits (ic), electrical appliances, mobile communications, precision instruments, eye clocks, jewelry, auto parts, plastic buttons, building materials, PVC coffins, medical equipment and other industries , 3C digital industry.

Such industries can choose laser marking machine: fiber laser marking machine, semiconductor laser marking machine, ultraviolet laser marking machine.

1. Fiber laser marking machine

It is mainly composed of three parts: laser, galvanometer and marking card. Fiber laser is used to produce laser marking equipment. The beam quality is good, its output center is 1064nm, and the life of the whole machine is about 100,000 hours. Compared with other types of laser marking Compared with other types of laser marking machines, the conversion efficiency of 2-10% has a great advantage, and it has superior performance in energy saving and environmental protection.

2. UV laser marking machine

UV laser marking machine is equipped with deep ultraviolet laser, high-speed scanning galvanometer system, etc. Because the focusing spot of ultraviolet laser marking equipment is extremely small, and the processing heat affected zone is very small, it can carry out ultra-fine marking, special material marking, ultraviolet laser marking The marking equipment is the product chosen by customers who have higher requirements on the marking effect. Ultraviolet laser marking equipment has the characteristics of high electro-optical conversion rate, long service life of nonlinear crystal, stable operation of the whole machine, high positioning accuracy, high operation efficiency, and modular design for easy installation and maintenance.

3. Semiconductor laser marking machine

The semiconductor pump laser marking machine uses a semiconductor laser diode (side or end face) with a wavelength of 0.808um to pump the Nd:YAG medium, so that a large number of inverted particles are generated in the medium to form a giant pulse laser with a wavelength of 1.064um under the action of the Q switch. output, high electro-optical conversion efficiency. Compared with the lamp-pumped YAG marking machine, the semiconductor-pumped laser marking equipment has the advantages of better stability, power saving, no need to change the lamp, etc., and the price is relatively high. (Basically replaced by optical fiber marking machine)

Non-metal marking machine

Mainly applicable materials for non-metal marking machine: paper, plastic, resin, wood, leather, quartz, glass, acrylic ceramics, etc. For metal products and non-metal products, users should choose the appropriate type of marking machine.

The main recommended machines for non-metal marking machine are: carbon dioxide marking machine, UV marking machine and optical fiber marking machine can also mark some non-metallic materials.

The Co2 marking machine uses CO2 gas to charge the discharge tube as the medium for generating the laser. When a high voltage is applied to the electrode, a glow discharge is generated in the discharge tube, and the gas molecules can release the laser, and the laser energy can be amplified. A laser beam for material processing is formed, and its output center is 10.64um.