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Laser Scanner Head

Laser scanning galvanometer, also called marking head, is an important component of laser marking machine.

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Product Description

Product Overview

The laser scanning head (also called laser scanning galvanometer, marking head or beam transmission system) is one of the indispensable core components of the laser marking machine. It is responsible for accurately positioning the laser beam to the surface of the material to achieve efficient laser marking, engraving and cutting functions.

Working principle

Galvanometer technology: The laser scanning head usually consists of a pair of high-speed galvanometers (mirrors) and a laser light source. The galvanometer changes the direction of the laser beam and controls the movement path of the laser beam on the surface of the material by rapid rotation and tilt.

Beam modulation: During the laser marking process, the emission of the laser is combined with the control of the galvanometer to form the desired pattern or text. The control system adjusts the working state of the laser and the galvanometer through CNC instructions according to the coordinate information of the design graphics.

Product Features

1. High speed:

Laser scanning heads can complete marking, engraving or cutting at extremely fast speeds, adapting to high-efficiency production needs.

2. High precision:

With excellent resolution and repeatability, they can achieve micron-level processing accuracy, suitable for applications with high requirements for details.

3. Versatility:

Can support a variety of processes such as marking, engraving, cutting and punching, suitable for a wide range of materials, including metal, plastic, glass and wood.

4. Flexibility:

Adjustable laser power and speed are used to optimize settings according to different materials and processing requirements.

5. Intelligent control:

Equipped with advanced control systems, it can easily complete the input and processing of design files through software, improving work efficiency.

6. Compact design:

Usually small in size and light in weight, it is easy to integrate into existing production lines or equipment.

7. Low maintenance requirements:

Laser scanning heads usually have a low failure rate and relatively simple daily maintenance.

Main Components of Laser Scanner Head

1. Galvanometer system

Horizontal galvanometer:

Responsible for controlling the deflection of the laser beam on the horizontal plane, scanning the laser in the X-axis direction through rapid mirror rotation, thereby achieving linear or curved surface marking or cutting.

Vertical galvanometer:

Controls the deflection of the laser beam on the vertical plane, usually responsible for scanning in the Y-axis direction. Combined with the operation of the horizontal galvanometer, complex two-dimensional or three-dimensional processing can be achieved.

2. Laser light source

Type:

Fiber laser: High efficiency, low maintenance, suitable for metals and some non-metallic materials.

CO2 laser: Usually used for cutting and engraving non-metallic materials such as wood, plastic and paper.

Solid laser: Suitable for some special applications, with high power output and good beam quality.

3. Control system

Function:

Responsible for receiving data from the computer or design software, real-time control of the laser switch, power, scanning speed and movement of the galvanometer, to ensure the accuracy and consistency of processing.

Interface:

Provides connection with the computer or controller, common interfaces include USB, Ethernet, etc., to achieve data transmission and control instructions.

The components of the laser scanning head work closely together to achieve high-precision laser processing. The galvanometer system is responsible for the dynamic control of the laser beam, the laser light source provides the required laser energy, and the control system ensures the coordination and accuracy of the entire process. Through the effective cooperation of various components, the laser scanning head can meet the requirements of modern manufacturing for high-efficiency and high-precision processing.

Product specifications

Marking Speed	8000mm/s
Positioning Speed	10000mm/s
Setting Time	≤0.4ms
Wavelength	10.6um / 1064nm / 355nm
Linearity	99.90%
Repeated Positioning Accuracy	8μRad.
Long-term Drift (8 hours)	< 0.5mRad
Gain Error	< 8mRad
Input Impedance	10KΩ ± 1% (Position Signal)
Input Scaling Factor	0.33V / ° (Position Signal)
Operating Temperature	0 ℃ - 45 ℃
Storage Temperature	-10 ℃ -+ 60 ℃
Laser Input Aperture	10mm
Zero Drift	＜15μRad./℃
Tracking Error	≤180us
Proportional Drift	＜40PPM/℃
Input Voltage	± 15VDC
Average Working Current	2.0A
Signal Interface Digital	XY2-100
Peak Current	15A
Operating Temperature	0 ℃-45 ℃
X, Y Lens Center Distance	13.5mm
Maximum Scanning Angle	± 15 °
Galvanometer Size(LWH)	100 × 95 × 120mm
Weight	2.5 KG

Advantages of Laser Scanner Head

1. Cost efficiency:

Low operating costs and high production efficiency make laser scanning technology economical and effective in large-scale production.

2. Contactless processing:

Laser processing is contactless and will not cause mechanical damage to the surface of the material, which is suitable for applications with high surface requirements.

3. Environmental protection:

Laser processing produces less waste, which is in line with the trend of modern environmentally friendly production.

4. Strong adaptability:

It can work stably in harsh environments such as high temperature and humidity, and is suitable for changing industrial environments.

5. Customization capability:

It can be customized according to customer needs and flexibly adjusted for specific business and market needs.

6. High safety:

Many laser scanning heads have complete safety protection measures to ensure the safety of operators.

7. Long-term stability:

Laser scanning heads usually have a long service life and stable performance, and can maintain high-efficiency working conditions for a long time.

Operating Modes of Laser Scanner Head

There are two main working modes of laser scanning heads: point scanning mode and line scanning mode. Each mode has its specific application scenarios and functions.

1. Point scanning mode

The point scanning mode uses a laser beam to quickly mark or process at a specific point. The laser head moves quickly between points, but the laser energy output at each point may be variable.

Applicable scenarios:

Fine processing: Suitable for fine marking and engraving of textures, patterns, text, etc. This mode is often used in applications with high detail requirements, such as electronic components, jewelry, and personalized products.

Small area processing: Suitable for engraving and marking of small area materials, which can achieve higher quality and resolution.

Advantages:

High precision: Able to achieve high-resolution processing in a small range.

Fine control: The laser energy of each point can be adjusted to obtain the desired effect.

2. Line scanning mode

The line scanning mode uses a laser beam to continuously scan along a line, and the movement of the laser head is continuous, so that the laser can process simultaneously on a longer path.

Applicable scenarios:

Fast cutting: Suitable for cutting and processing large areas, such as cutting wood, plastic or metal plates. This mode is often used for efficient cutting and punching in industrial production.

Large area marking: Can quickly cover large surfaces for marking or engraving.

Advantages:

Fast speed: Able to complete large-area cutting or marking in a short time, suitable for mass production.

High efficiency: Reduces the pause time of movement during continuous processing and improves overall production efficiency.

The laser scanning head can select different processing methods according to actual needs through two modes: point scanning and line scanning. The point scanning mode is suitable for tasks that require high-precision details, while the line scanning mode is suitable for tasks that require fast and large-area processing. In different industrial applications, the reasonable selection of working modes can significantly improve the processing effect and efficiency.

Application of Laser Scanner Head

Laser Scanner Head has important applications in laser cutting, laser marking, laser engraving, 3D printing, etc. It provides efficient and accurate processing solutions for industrial production.

Care & Maintenance of Laser Scanner Head

In order to ensure the long-term stable operation and processing quality of the laser scanning head, regular maintenance and care are essential.

1. Regular cleaning

Optical lens cleaning: Regularly check and clean the optical lens and lens to prevent dust or dirt from affecting the focus and quality of the laser beam.

Body and rail cleaning: Remove dust on the surface of the equipment and residues generated by the cutting process to keep the equipment clean.

2. Check alignment

Laser beam alignment: Regularly check the alignment of the laser beam to ensure that the laser beam is accurately focused on the processing material.

Mechanical component alignment: Ensure that the motion mechanism of the scanning head is not stuck and maintains a good motion state.

3. Heat dissipation management

Heat dissipation system inspection: Ensure that the heat dissipation system of the laser scanning head is working properly to prevent overheating from damaging the equipment.

Ambient temperature monitoring: When used in an environment with high temperature or high humidity, ensure that the temperature and humidity meet the equipment requirements.

4. Regular maintenance

Professional service: Arrange professional technicians to conduct regular comprehensive inspections and maintenance of the equipment according to the frequency of equipment use.

Software update: Keep the equipment software and firmware updated to ensure that the equipment has the latest functions and optimizations.

5. Operation training

Employee training: Provide effective equipment use and maintenance training to operators to ensure correct operation to reduce the probability of failure.

Through reasonable selection and regular maintenance, the service life of the laser scanning head can be extended, its stable processing performance can be maintained, thereby improving production efficiency and product quality.