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👈

TEYU Water Chiller Maker at the CIIF 2024

The 24th China International Industry Fair (CIIF 2024) is now open, and TEYU S&A Chiller has made a strong impression with its technical expertise and innovative chiller products. At Booth NH-C090, the TEYU S&A team engaged with industry professionals, addressing questions and discussing advanced 

On the first day of CIIF 2024, TEYU S&A also gained media attention, with leading industry outlets conducting exclusive interviews. These interviews highlighted the advantages of TEYU S&A water chillers in sectors like smart manufacturing, new energy, and semiconductors, while also exploring future trends. 

The excitement of the exhibition is far from over, and we look forward to seeing you in NECC (Shanghai) from September 24-28!

Source: https://www.teyuchiller.com/teyu-water-chiller-maker-at-the-24th-china-international-industry-fair

Cooling Methods for Waterjets: Oil-Water Heat Exchange Closed Circuit and a Chiller

Waterjets, while less common than plasma or laser cutting systems—making up only 5-10% of the global market—play a vital role in cutting materials that other technologies cannot handle. Despite being significantly slower (up to 10 times slower) than thermal cutting methods, waterjets are indispensable for processing thick metals like bronze, copper, and aluminum, non-metals such as rubber and glass, organic materials like wood and ceramics, composites, and even food.

Most waterjet machines are produced by small OEMs. Regardless of size, all waterjets require effective cooling to maintain performance and longevity. The small waterjet systems typically need 2.5 to 3 kW of cooling capacity, while larger systems may require up to 8 kW or more.

An effective cooling solution for these waterjet systems is the oil-water heat exchange closed circuit combined with a water chiller. This method involves transferring heat from the waterjet's oil-based system to a separate water loop. A water chiller then removes heat from the water before it's recirculated. This closed-loop design prevents contamination and ensures optimal cooling efficiency.

TEYU S&A Chiller, a leading water chiller manufacturer, is renowned for the efficiency and stability of its chiller products. The CW series chillers offer cooling capacities from 600W to 42kW and are well-suited for cooling waterjet machines. For example, the CW-6000 chiller model provides a cooling capacity of up to 3140W, making it ideal for small waterjet systems, while the CW-6260 chiller offers up to 9000W of cooling power, perfect for larger systems. These chillers provide reliable and stable temperature control, safeguarding sensitive waterjet components from overheating. By effectively managing heat, this cooling method enhances waterjet performance and extends equipment life.

While waterjet systems may not be as widely used as their thermal cutting counterparts, their unique capabilities make them indispensable in specific industries. Effective cooling, particularly through the oil-water heat exchange closed circuit and chiller method, is critical to their performance, especially in larger, more complex systems. With TEYU high-performance water chillers, waterjet machines can operate more efficiently, ensuring long-term reliability and precision.

Source: https://www.teyuchiller.com/closed-loop-water-chiller-for-waterjet-machine

TEYU Chiller Maker Will Attend CIIF 2024

From September 24-28 at Booth NH-C090, TEYU S&A Chiller Manufacturer will showcase over 20 water chiller models, including fiber laser chillers, CO2 laser chillers, ultrafast & UV laser chillers, handheld laser welding chillers, CNC machine tool chillers, and water-cooled chillers, etc., which constitutes a comprehensive display of our specialized cooling solutions for various types of industrial and laser equipment.

In addition, TEYU S&A Chiller Manufacturer's latest product line—enclosure cooling units—will make its debut to the public. Join us as the first to witness the unveiling of our latest refrigeration systems for industrial electrical cabinets!

We look forward to meeting you at the National Exhibition and Convention Center (NECC) in Shanghai, China!

The Showcased Water Chillers at CIIF 2024

The highly anticipated 24th China International Industry Fair (CIIF 2024) will take place at the NECC in Shanghai from Sept. 24-28. Let me give you a sneak peek of some of the 20+ water chillers that are exhibited at Booth NH-C090 of TEYU S&A Chiller Manufacturer!

Ultrafast Laser Chiller CWUP-20ANP

This chiller model is specifically designed for picosecond and femtosecond ultrafast laser sources. With an ultra-precise temperature stability of ±0.08℃, ultrafast laser chiller CWUP-20ANP provides stable temperature control for high-precision applications. It also supports ModBus-485 communication, facilitating easy integration into your ultrafast laser systems.

Fiber Laser Chiller CWFL-3000ANS

Featuring a temperature stability of ±0.5℃, this chiller model boasts a dual cooling circuit dedicated to the 3kW fiber laser and the optics. Renowned for its high reliability, energy efficiency, and durability, the fiber laser chiller CWFL-3000 is equipped with multiple intelligent protections and alarm functions. It also supports Modbus-485 communication for easy monitoring and adjustments.

Rack-Mounted Laser Chiller RMFL-3000ANT

This 19-inch rack-mountable laser chiller features easy installation and space saving. The temp stability is ±0.5°C while the temp control range is 5°C to 35°C. Rack-mounted laser chiller RMFL-3000ANT is a powerful helper for cooling 3kW handheld laser welders, cutters, and cleaners.

Handheld Laser Welding Chiller CWFL-1500ANW16

It is a new portable chiller specifically designed for 1.5kW handheld welding, requiring no additional cabinet design. Its compact and mobile design saves space, and it features dual cooling circuits for the laser and the optics, making the welding process more stable and efficient. (*Note: The laser source is not included.)

Ultrafast/UV Laser Chiller RMUP-500AI

This 6U/7U rack-mounted chiller features a compact footprint. It offers a high precision of ±0.1℃ and features a low noise level and minimal vibration. It is great for cooling 10W-20W UV and ultrafast lasers, laboratory equipment, semiconductor devices, medical analytical devices...

UV Laser Chiller CWUL-05AH

It is tailored to deliver cooling for 3W-5W UV laser systems. Despite its compact size, laser chiller CWUL-05 boasts a large cooling capacity of up to 380W. Thanks to its high-precision temperature stability of ±0.3℃, it effectively stabilizes UV laser output.

During the fair, a total of more than 20 water chiller models will be exhibited. We will introduce our newest product series of enclosure cooling units to the public. Join us to experience the launch of these refrigeration solutions for industrial electrical cabinets. Looking forward to seeing you at Booth NH-C090, National Exhibition and Convention Center (NECC), Shanghai, China!

Source: https://www.teyuchiller.com/teyu-chiller-manufacturer-will-attend-china-international-industry-fair-2024

PCB Laser Depaneling Machine and Its Temperature Control Technology

The PCB laser depaneling machine is a device that uses laser technology to precisely cut printed circuit boards (PCBs). By controlling the movement trajectory of a high-energy laser beam on the surface of the material, it achieves precise cutting of PCB boards. This equipment is widely used in the electronics manufacturing industry, especially for depaneling operations that require high precision and efficiency.

Advantages of PCB Laser Depaneling Machines

High Efficiency: The laser depaneling machine uses a high-energy laser beam for cutting, allowing it to complete large-scale depaneling tasks in a short time. Compared to traditional mechanical cutting methods, the laser depaneling machine increases depaneling speed by more than 20%, significantly boosting production efficiency.

High Precision: The laser depaneling machine can achieve sub-millimeter precision, meeting the production needs of fine electronic products. The high energy density and strong controllability of laser technology ensure smooth cutting edges and consistent dimensions.

Strong Adaptability: The laser depaneling machine is suitable for various types of circuit boards, including rigid, flexible, and composite boards. Whether it's single-layer or multi-layer boards, the laser depaneling machine can adapt to and meet the depaneling requirements.

Automation Features: The laser depaneling machine is equipped with automatic positioning, automatic correction, and automatic scaling functions, enabling unattended production processing. This reduces human error, increases work efficiency, and enhances safety.

Non-Contact Processing: The laser depaneling machine uses non-contact processing, avoiding the damage and burrs that can occur with mechanical cutting, ensuring the flatness and quality of the PCB surface.

Multi-Material Compatibility: The laser depaneling machine is compatible with various materials, such as FPC (flexible circuit boards), PCB, RFPC (radio frequency circuit boards), IC substrate ceramics, and more, offering strong versatility and applicability.

The Necessity of Laser Chiller

During operation, the stability and precision of the laser source in a PCB laser depaneler are critical to the quality of the cutting. To maintain the laser's operating temperature within an appropriate range and prevent performance degradation or damage due to excessive heat, some high-performance laser depaneling machines may require a laser chiller for cooling. A laser chiller effectively controls the laser's temperature, ensuring optimal performance even during continuous operation or in high-temperature environments. Additionally, using a laser chiller can extend the laser's lifespan and improve the equipment's stability and reliability.

TEYU S&A Chiller Manufacturer, with 22 years of experience in the refrigeration industry, has developed over 120 laser chiller models to meet the cooling needs of various laser equipment. With a 2-year warranty, an annual shipment volume of 160,000 chiller units, and sales in over 100 countries and regions, TEYU S&A Chiller Manufacturer is your trusted partner. Quato us to get your tailored cooling solution. Please write to us for your customized cooling solution.

Source: https://www.teyuchiller.com/pcb-laser-depaneling-machine-and-its-temperature-control-solution

Common Types of 3D Printers and Their Water Chiller Applications

3D printing or additive manufacturing is the construction of a three-dimensional object from a CAD or a digital 3D model, which has been used in manufacturing, medical, industry, and sociocultural sectors... 3D printers can be classified into various types based on different technologies and materials. Each type of 3D printer has specific temperature control needs, and thus the application of 

1. SLA 3D Printers

Working Principle: Uses a laser or UV light source to cure liquid photopolymer resin layer by layer.

Chiller Application: (1)Laser Cooling: Ensures the laser operates stably within the optimal temperature range. (2)Build Platform Temperature Control: Prevents defects caused by thermal expansion or contraction. (3)UV LED Cooling (if used): Prevents UV LEDs from overheating.

2. SLS 3D Printers

Working Principle: Uses a laser to sinter powder materials (e.g., nylon, metal powders) layer by layer.

Chiller Application: (1)Laser Cooling: Needed to maintain laser performance. (2)Equipment Temperature Control: Helps maintain a stable temperature in the entire printing chamber during the SLS process.

3. SLM/DMLS 3D Printers

Working Principle: Similar to SLS, but primarily for melting metal powders to create dense metal parts.

Chiller Application: (1)High-Power Laser Cooling: Provides effective cooling for the high-power lasers used. (2)Build Chamber Temperature Control: Ensures consistent quality in metal parts.

4. FDM 3D Printers

Working Principle: Heats and extrudes thermoplastic materials (e.g., PLA, ABS) layer by layer.

Chiller Application: (1)Hotend Cooling: While not common, high-end industrial FDM printers might use chillers to precisely control the hotend or nozzle temperature to prevent overheating. (2)Environmental Temperature Control**: Used in some cases to maintain a consistent printing environment, especially during long or large-scale prints.

5. DLP 3D Printers

Working Principle: Uses a digital light processor to project images onto photopolymer resin, curing each layer.

Chiller Application: Light Source Cooling. DLP devices typically use high-intensity light sources (e.g., UV lamps or LEDs); water chillers keep the light source cool to ensure stable operation.

6. MJF 3D Printers

Working Principle: Similar to SLS, but uses a jetting head to apply fusing agents onto powder materials, which are then melted by a heat source.

Chiller Application: (1)Jetting Head and Laser Cooling: Chillers cool the jetting head and lasers to ensure efficient operation. (2)Build Platform Temperature Control: Maintains platform temperature stability to avoid material deformation.

7. EBM 3D Printers

Working Principle: Uses an electron beam to melt metal powder layers, suitable for manufacturing complex metal parts.

Chiller Application: (1)Electron Beam Gun Cooling: The electron beam gun generates significant heat, so chillers are used to keep it cool. (2)Build Platform and Environment Temperature Control: Controls the temperature of the build platform and the printing chamber to ensure part quality.

8. LCD 3D Printers

Working Principle: Uses an LCD screen and UV light source to cure resin layer by layer.

Chiller Application: LCD Screen and Light Source Cooling. Chillers can cool high-intensity UV light sources and LCD screens, extending equipment life and improving print precision.

How to Choose the Right Water Chillers for 3D Printers?

Choosing the Right Water Chiller: When selecting a water chiller for a 3D printer, consider factors such as heat load, temperature control accuracy, environmental conditions, and noise levels. Ensure the water chiller's specifications meet the cooling requirements of the 3d printer. To guarantee optimal performance and longevity of your 3D printers, it is advisable to consult with the 3d printer manufacturer or water chiller manufacturer when choosing a water chiller.

TEYU S&A’s Advantages: TEYU S&A Chiller is a leading chiller manufacturer with 22 years of experience, providing tailored cooling solutions for various industrial and laser applications, including different types of 3D printers. Our water chillers are known for their high efficiency and reliability, with over 160,000 chiller units sold in 2023. The CW series water chillers offer cooling capacities from 600W to 42kW and are suitable for cooling SLA, DLP, and LCD 3D printers. The CWFL series chiller, developed specifically for fiber lasers, is ideal for SLS and SLM 3D printers, supporting fiber laser processing equipment from 1000W to 160kW. The RMFL series, with a rack-mounted design, is perfect for 3D printers with limited space. The CWUP series offers temperature control precision up to ±0.08°C, making it suitable for cooling high-precision 3D printers.

Source: https://www.teyuchiller.com/water-chillers-for-3d-printers