CO2 Laser Technology: EFR and RECI Laser Tubes

As the era of "light" arrives, laser light sources continue to evolve, including fiber lasers, pulsed lasers, and ultrafast lasers. CO2 laser tubes, with their high efficiency, high power, and excellent beam quality, are widely used in industrial, medical, and precision processing fields.

How CO2 Laser Tubes Work

The operating principle of CO2 laser tubes is based on the vibrational energy level transitions of carbon dioxide molecules. When an electric current passes through the laser tube, it excites the molecules, causing energy transitions and emitting laser light. We will analyze the differences and applications of two types of CO2 laser tubes: EFR laser tubes and RECI laser tubes.

While both types operate on similar principles, their main differences lie in the excitation method and laser characteristics:

EFR Laser Tubes: EFR laser tubes use an electric current to excite the gas, providing stable output power and excellent beam quality, making them suitable for a variety of laser processing tasks.

RECI Laser Tubes: RECI laser tubes use heat generated by light waves to excite the gas, producing a pure, evenly distributed laser beam. This makes them ideal for precision processing and medical applications where laser quality is of utmost importance.

Applications of EFR and RECI Laser Tubes

EFR Laser Tube Applications: 1)Laser Engraving: Suitable for engraving various materials such as wood, plastic, and metal. 2)Laser Cutting: Effective for rapid cutting of materials like metal, glass, and textiles. 3)Laser Marking: Provides permanent markings on products.

RECI Laser Tube Applications: 1)Precision Processing: Delivers high-precision cutting and engraving for electronic component manufacturing. 2)Medical Equipment: Enables precise laser operations in surgical and therapeutic procedures. 3)Scientific Instruments: Provides a stable and high-quality laser source for research work.

Cost-Effectiveness Analysis of EFR and RECI Laser Tubes

EFR Laser Tubes: With their lower initial cost and maintenance expenses, they are ideal for users with budget constraints or specific cost considerations.

RECI Laser Tubes: Although they have a higher initial cost, their superior quality and long-term stability ensure excellent performance, potentially offering better cost-effectiveness over time.

The Role of Water Chillers in CO2 Laser Systems

During high-power laser operations, the heat generated by the laser tubes can affect performance and longevity. Therefore, a water chiller is essential for maintaining stability and prolonging the lifespan of the CO2 laser tubes. TEYU CO2 laser chillers provide both constant temperature and intelligent temperature control modes, allowing for on-demand switching to ensure the stable and efficient operation of CO2 laser systems.

When choosing a CO2 laser tube, users should make decisions based on their application needs, budget, and laser quality requirements. Whether opting for an EFR or a RECI laser tube, pairing it with a suitable water chiller is crucial for ensuring long-term, stable operation.

Source: https://www.teyuchiller.com/co2-laser-technology-efr-laser-tubes-and-reci-laser-tubes👈

How to Choose a Water Chiller for an 80W CO2 Laser Engraver?

Are you seeking a suitable water chiller to cool your 80W CO2 laser engraving machine? Here are some tips to help you better choose the suitable water chiller:

How to Choose a Water Chiller for an 80W CO2 Laser Engraver:

When selecting a water chiller for your 80W CO2 laser engraver, consider these factors: (1)Cooling Capacity: Ensure the water chiller can handle the heat load of your laser engraver, typically measured in watts. For an 80W CO2 laser, a water chiller with a cooling capacity of at least 700W (0.7kW) is recommended. (2)Temperature Stability: Choose a water chiller that maintains stable temperature control, ideally within ±0.3°C to ±0.5°C. (3)Flow Rate: Ensure the water chiller provides an adequate flow rate, usually specified by the laser manufacturer. For an 80W CO2 laser, a flow rate of around 2-4 liters per minute (L/min) is typical. (4)Portability: It could be a big problem if there is not enough space, so consider the water chiller's size, weight, and ease of mobility before purchasing.

How to Calculate the Cooling Capacity of an 80W CO2 Laser Engraver Chiller?

The requirement for an 80W CO2 laser engraver chiller can be understood through a combination of practical considerations and engineering safety margins. Here’s a more detailed explanation with a relevant formula: (1)Heat Generation by the Laser: The power of the CO2 laser is 80W, and the efficiency of the CO2 laser is 20%, so the calculated power input is 80W/20%=400W. (2)Heat Generated: The heat generated is the difference between the power input and the useful laser output: 400W - 80W = 320W. (3)Safety Margin: To account for variations in operating conditions, environmental factors, and to ensure efficient operation, a safety margin is added. This margin typically ranges from 1.5 to 2 times the heat load: 320W*2 = 640W. (4)System Efficiency and Buffer: To ensure the water chiller is not operating at its maximum capacity all the time, which can reduce its lifespan and efficiency, an additional buffer is included. A 700W water chiller provides this necessary margin comfortably.

In summary, a 700W water chiller provides sufficient capacity to manage the 320W of waste heat while offering the necessary buffer to ensure stable and efficient cooling under various operating conditions. This capacity ensures the 80W CO2 laser operates optimally, preventing overheating and extending the system’s lifespan.

Recommended Chiller Makers and Chiller Models

It is recommended to purchase water chillers from globally recognized CO2 laser chiller makers. Their water chiller products have proven stability and reliability in the market, ensuring efficient cooling for laser engraving. This enhances engraving efficiency, improves engraving quality, and extends the lifespan of the engraving machine.

TEYU Water Chiller Maker, a premier CO2 laser chiller maker and supplier with 22 years of experience, offers CW series water chillers specifically designed for cooling CO2 laser equipment. CW water chillers provide cooling capacities up to 42kW and temperature control accuracy ranging from 0.3℃ to 1℃. For an 80W laser engraving machine, the TEYU CW-5000 water chiller is the ideal choice. This chiller model is renowned for its high reliability and efficient cooling performance, delivering stable temperature control with a precision of ±0.3°C and a cooling capacity of 750W. Its compact structure, with dimensions of 58 x 29 x 47 cm (L x W x H), saves space and makes it easy to carry to various processing scenarios, making the water chiller CW-5000 well-suited for your 80W CO2 laser engraving machine.

Source: https://www.teyuchiller.com/how-to-choose-a-water-chiller-for-an-80w-co2-laser-engraver

What is a CO2 Laser? How to Select a CO2 Laser Chiller?

   What is a CO2 Laser?

CO2 lasers are a type of molecular gas laser that emits in the long-wavelength infrared spectrum. They rely on a gas mixture as the gain medium, which includes gases like CO2, He, and N2. A CO2 laser comprises a discharge tube pump source and various optical components. In a CO2 laser, the gaseous gain medium CO2 fills the discharge tube and is pumped electrically through DC, AC, or radiofrequency methods to create particle inversion, generating laser light. 

What are the Applications of CO2 laser?

CO2 lasers can emit infrared light with wavelengths ranging from 9μm to 11μm, with a typical emission wavelength of 10.6μm. These lasers typically have average output powers ranging from tens of watts to several kilowatts, with a power conversion efficiency of approximately 10% to 20%. As a result, they are widely used in laser material processing, including cutting and processing materials such as plastics, wood, mold plates, and glass sheets, as well as cutting, welding, and cladding metals like stainless steel, aluminum, or copper. They are also used for laser marking on various materials and 3D laser printing of polymer materials.

How to Select a CO2 Laser Chiller?

CO2 laser systems are known for their simplicity, low cost, high reliability, and compact design, making them a cornerstone of precision manufacturing. However, the process of pumping energy into a significant volume of CO2 gas generates heat, leading to thermal expansion and contraction in the laser structure, resulting in relative output power instability. Turbulence in the gas-assisted cooling process can also introduce instability. Choosing TEYU S&A laser chillers can ensure stable CO2 laser beam output by providing cooling and temperature control. So how to select the suitable CO2 laser chiller for CO2 laser machines? For instance, an 80W glass CO2 laser tube can be paired with the TEYU S&A chiller CW-3000, while a laser chiller CW-5000 can be selected to cool a 60W RF CO2 laser tube. TEYU water chiller CW-5200 can offer highly reliable cooling for up to 130W DC CO2 laser while the CW-6000 is for 300W CO2 DC laser tube. TEYU S&A CW series CO2 laser chillers do a great job in controlling the temperature of the CO2 laser. They offer cooling capacity ranging from 800W to 42000W and are available in small size and big size. Sizing the chiller is determined by the power or the heat load of the CO2 laser. 

For more about TEYU S&A laser chillers selection, you can leave us a message and our professional laser chiller engineers will offer a tailored laser cooling solution for your laser project.

Source: https://www.teyuchiller.com/what-is-a-co2-laser-and-how-to-select-a-co2-laser-chiller

S&A Water Chiller CW-6000 for Cooling CO2 Laser Cutting Machine

S&A water chiller CW-6000 is popular among CO2 laser cutting machine users due to its ease of use, easy maintenance and excellent cooling performance.
Its temperature controller is so intelligent that it can display water & ambient temperature and multiple alarm notices, including compressor time-delay protection, compressor overcurrent protection, water flow alarm and over high / low temperature alarm.
For more details about S&A water chiller CW-6000, click https://www.teyuchiller.com/refrigeration-water-chillers-cw-6000-cooling-capacity-3000w-multiple-alarm-function_p10.html

Guangzhou Teyu Electromechanical Co., Ltd.
SKYPE: teyuchiller
Email: marketing@teyu.com.cn
Website: https://www.teyuchiller.com

Which type of CO2 laser is more applicable in laser marking machine? CO2 glass laser tube or CO2 RF tube?

Which type of CO2 laser is more applicable in laser marking machine? CO2 glass laser tube or CO2 RF tube? Today, we make a simple analysis of these two types of CO2 lasers, so users can select the desired one according to their own needs.

For CO2 glass laser tube, it costs less but with higher risk of malfunction. Besides, its total lifetime is only 2000 hours.

For CO2 RF tube, it is made of metal and characterized by compact design, low maintenance cost, low malfunction rate, high beam quality and long working life(generally more than 20000 hours), but it costs more.

In respect of production, S&A has invested the production equipment of more than one million RMB, ensuring the quality of a series of processes from the core components (condenser) of industrial chiller to the welding of sheet metal; in respect of logistics, S&A has set up logistics warehouses in the main cities of China, having greatly reduced the damage due to the long-distance logistics of the goods, and improved transport efficiency; in respect of after-sales service, all the S&A water chillers are underwritten by insurance company and the warranty period is two years.

About S&A Brand
S&A(TEYU) was founded in 2002. After 16 years of development, the headquarter covers an area of 18,000 square meters, and has about 250 employees. 

Why choose S&A
Product Advantages:
1. With 11 patent certificates，CE, RoHS and REACH approval; Conforms to air transport requirements; 2 years warranty
2.±0.1℃ high precision temperature control, stable cooling performance,support
ModBus-485 communication;
3. Establish logistic warehouses at USA and Europe;
Manufacturing Advantages:
1.Independent R&D on sheet metal, evaporator, condenser and cores parts of chiller;
2. Annual output 60,000 units, product exports rate above 60%；
3. Standard bulk production, standard parts rate up to 80% ；
4. With excellent laboratory testing system, simulates actual working environment for chiller.

CONTACT S&A
SKYPE: teyuchiller ;  Email: marketing@teyu.com.cn;
Website:  https://www.teyuchiller.com
TEL:+86-20-89301885;  FAX:+86-20-84309967