The Differences Between Nanosecond, Picosecond and Femtosecond Lasers?

Laser technology has advanced rapidly over the past few decades. From nanosecond laser to picosecond laser to femtosecond laser, it has been gradually applied in industrial manufacturing, providing solutions for all walks of life. But how much do you know about these 3 types of lasers? Let's find out together:

 

Definitions of Nanosecond, Picosecond, and Femtosecond Lasers

Nanosecond laser was first introduced into the industrial field in the late 1990s as diode-pumped solid-state (DPSS) lasers. However, the first such lasers had a low output power of a few watts and a wavelength of 355nm. Over time, the market for nanosecond lasers has matured, and most lasers now have pulse durations in tens to hundreds of nanoseconds.

Picosecond laser is an ultra-short pulse width laser that emits picosecond-level pulses. These lasers offer an ultra-short pulse width, adjustable repetition frequency, high pulse energy, and are ideal for applications in biomedicine, optical parametric oscillation, and biological microscopic imaging. In modern biological imaging and analysis systems, picosecond lasers have become increasingly important tools.

Femtosecond laser is an ultra-short pulse laser with an incredibly high intensity, calculated in femtoseconds. This advanced technology has provided humans with unprecedented new experimental possibilities and has broad applications. The utilization of an ultra-strong, short-pulsed femtosecond laser for detection purposes is particularly advantageous for various chemical reactions, including but not limited to bond cleavage, new bond formation, proton and electron transfer, compound isomerization, molecular dissociation, speed, angle, and state distribution of reaction intermediates and final products, chemical reactions occurring in solutions and the impact of solvents, as well as the influence of molecular vibration and rotation on chemical reactions.

 

Time Conversion Units for Nanoseconds, Picoseconds, and Femtoseconds

1ns (nanosecond) = 0.0000000001 seconds = 10-9 seconds

1ps (picosecond) = 0.0000000000001 seconds = 10-12 seconds

1fs (femtosecond) = 0.000000000000001 seconds = 10-15 seconds

The nanosecond, picosecond, and femtosecond laser processing equipment commonly seen in the market are named based on time. Other factors, such as single pulse energy, pulse width, pulse frequency, and pulse peak power, also play a role in selecting the appropriate equipment for processing different materials. The shorter the time, the less impact on the material surface, resulting in a better processing effect.

 

Medical Applications of Picosecond, Femtosecond, and Nanosecond Lasers

Nanosecond lasers selectively heat and destroy melanin in the skin, which is then eliminated from the body by the cells, resulting in the fading of pigmented lesions. This method is commonly used for the treatment of pigmentation disorders. Picosecond lasers operate at a high speed, breaking down melanin particles without damaging the surrounding skin. This method effectively treats pigmented diseases such as nevus of Ota and Brown cyan nevus. Femtosecond laser operates in the form of pulses, which can emit huge power in an instant, great for the treatment of myopia.

Cooling System for Picosecond, Femtosecond, and Nanosecond Lasers

No matter the nanosecond, picosecond or femtosecond laser, it is necessary to ensure the normal operation of the laser head and pair the equipment with a laser chiller. The more precise the laser equipment, the higher the temperature control accuracy. TEYU ultrafast laser chiller has a temperature stability of ±0.1°C and rapid cooling, which ensures that the laser works at a constant temperature and has a stable beam output, thereby improving the service life of the laser. TEYU ultrafast laser chillers are suitable for all these three types of laser equipment.

Source: https://www.teyuchiller.com/the-differences-between-nanosecond-picosecond-and-femtosecond-lasers

Does The Water Pump Pressure Of An Industrial Chiller Affect Chiller Selection?

When selecting an industrial water chiller, it is essential to ensure that the cooling capacity of the chiller aligns with the required cooling range of the processing equipment. Additionally, the temperature control stability of the chiller should also be considered, along with the need for an integrated unit. You should also pay attention to the water pump pressure of the chiller.

How Does Industrial Chiller Water Pump Pressure Influence Purchase Decisions?

If the flow rate of the water pump is too large or too small, it can adversely affect the refrigeration of the industrial chiller.

When the flow rate is too small, the heat cannot be quickly taken from the industrial processing equipment, causing its temperature to rise. Furthermore, the slowly cooling water flow rate increases the temperature difference between the water inlet and outlet, resulting in a large surface temperature difference of the equipment being cooled.

When the flow rate is too large, selecting an overlarge water pump will increase the cost of an industrial chiller unit. The operating costs, such as electricity, may also rise. Furthermore, the excessive cooling water flow and pressure can increase the water pipe resistance, causing unnecessary energy consumption, reducing the service life of the cooling water circulation pump, and leading to other potential failures.

The components of each TEYU industrial chiller model are configured according to the cooling capacity. The optimal combination is obtained through experimental verification from the TEYU R&D center. Therefore, when purchasing, users only need to provide the corresponding parameters of the laser equipment, and TEYU Chiller sales will match the most suitable chiller model for the processing equipment. The whole process is convenient.

Source: https://www.teyuchiller.com/water-pump-pressure-of-an-industrial-water-chiller

How Ultrafast Laser Realizes The Precision Processing Of Medical Equipment?

The COVID-19 pandemic has resulted in a surge in demand for medical treatment, medication, and medical supplies. The demand for masks, antipyretics, antigen detection reagents, oximeters, CT films, and other related medicines and medical equipment is likely to continue. Life is priceless and people are willing to unreservedly spend money on medical treatment, and this has created a medical market worth hundreds of millions.

 

Ultrafast Laser Realizes Precision Processing of Medical Devices

Ultrafast laser refers to the pulse laser whose output pulse width is 10⁻¹² or less than a picosecond level. The extremely narrow pulse width and high energy density of ultrafast laser make it possible to solve conventional processing bottlenecks such as high, fine, sharp, hard, and difficult processing methods that are hard to achieve. Ultrafast lasers are widely applicable to precision processing in biomedical, aerospace, and other industries.

The pain point of medical + laser welding mainly lies in the difficulty of welding dissimilar materials, differences in melting points, expansion coefficients, thermal conductivity, specific heat capacity, and material structures of dissimilar materials. The product features a small fine size, high precision requirements, and requires auxiliary high-magnification vision.

The pain point of medical + laser cutting mainly is that, in the cutting of ultra-thin materials (commonly referred to as thickness <0.2mm), the material is easily deformed, the heat effect zone is too large, and the edges are carbonized seriously; There are burrs, large cutting gap, and the precision is low; The thermal melting point of biodegradable materials is low and sensitive to the temperature. Cutting of brittle materials is prone to chipping, surface with micro-cracks, and residual stress problems, so the yield rate of finished products is low.

In the material processing industry, ultrafast laser can achieve high precision and an extremely small heat-affected zone, making it advantageous in the processing of some heat-sensitive materials, such as cutting, drilling, material removal, photolithography, etc. It is also suitable for processing brittle transparent materials, superhard materials, precious metals, etc. For some medical applications such as micro scalpels, tweezers, and microporous filters, ultrafast laser precision cutting can be achieved. Ultrafast laser cutting glass can be applied to glass sheets, lenses, and microporous glass used in some medical instruments.

The role of interventional and minimally invasive devices in accelerating treatment, reducing patient suffering, and promoting healing cannot be underestimated. However, it is becoming increasingly difficult to process these instruments and parts with traditional techniques. In addition to being small enough to pass through delicate tissues such as human blood vessels, perform complex procedures, and meet safety and quality requirements, the common characteristics of this type of device are complex structure, thin wall, repeated clamping, extremely high requirements on surface quality, and the high demand for automation. A typical case is the heart stent, which is of extremely high processing precision and has been expensive for a long time.

Due to the extremely thin wall tubes of heart stents, laser processing is increasingly applied to replace conventional mechanical cutting. Laser processing has become the preferred method, but ordinary laser processing through ablation melting can lead to a series of problems such as burrs, uneven groove widths, serious surface ablation, and uneven rib widths. Fortunately, the emergence of picosecond and femtosecond lasers has greatly improved the processing of cardiac stents and achieved excellent results.

 

Application of Ultrafast Laser in Medical Cosmetology

The seamless integration of laser technology and medical services is driving continuous advancement in the medical device industry. Ultrafast laser technology has been extensively utilized in high-end technical areas like medical devices, medical services, biopharmaceuticals, and drugs, playing a pivotal role. Moreover, ultrafast lasers are increasingly being employed directly in the realm of human medicine to enhance patients' lives. With respect to application fields, ultrafast lasers are set to lead the way in biomedicine, including in areas such as ophthalmic surgery, laser beauty treatments like skin rejuvenation, tattoo removal, and hair removal.

Laser technology has been widely used in medical cosmetology and surgery for a long time. In the past, excimer laser technology was commonly utilized for myopia eye surgery, while CO2 fractional laser was preferred for freckle removal. However, the emergence of ultra-fast lasers has rapidly transformed the field. Femtosecond laser surgery has become the mainstream method for treating myopia among many corrective operations and offers several advantages over traditional excimer laser surgery, including high surgical accuracy, minimal discomfort, and excellent postoperative visual effects.

Additionally, ultrafast lasers are used to remove pigments, native moles, and tattoos, improve skin aging, and maintain skin rejuvenation. The future prospects of ultrafast lasers in the medical field are promising, especially in clinical surgery and minimally invasive surgery. The use of laser knives in the precise removal of necrotic and harmful cells and tissues that are difficult to remove manually with a knife is just one example of the technology's potential.

TEYU ultrafast laser chiller CWUP series has a temperature control accuracy of ±0.1°C and a cooling capacity of 800W-3200W. It can be used to cool 10W-40W medical ultrafast lasers, improve equipment efficiency, extend equipment life, and promote the application of ultra-fast lasers in the medical field.

 

Conclusion

The market application of ultrafast lasers in the medical field is just beginning, and it has immense potential for further development. 

Source: https://www.teyuchiller.com/ultrafast-laser-realizes-precision-processing-of-medical-equipment

Industrial Chiller Water Circulation System And Water Flow Fault Analysis

Working principle of industrial chiller: the refrigeration system of the compressor in the chiller cools the water, then the water pump transfers the low-temperature cooling water to the laser equipment and takes away its heat, then the circulating water will return to the tank for cooling again. Such circulation can achieve the cooling purpose for industrial equipment.

 

Water circulation system, an important system of industrial chiller

The water circulation system is mainly composed of a water pump, flow switch, flow sensor, temperature probe, water solenoid valve, filter, evaporator, valve, and other components.

The role of the water system is to transfer the low-temperature cooling water into the equipment to be cooled by the water pump. After taking away the heat, the cooling water will heat up and return to the chiller. After being cooled again, the water will be transported back to the equipment, forming a water cycle.

 

Flow rate is the most critical factor in the water system, and its performance directly affects the refrigeration effect and cooling speed. The following analyzes the reasons that affect the flow rate.

1. The resistance of the whole water system is rather large (overlong pipeline, too-small pipe diameter, and the reduced diameter of the PPR pipe hot-melt welding), which exceeds the pump pressure.

2. Blocked water filter; the opening of the gate valve spool; the water system exhausts unclean air; broken automatic vent valve, and problematic flow switch.

3. The water supply of the expansion tank connected to the return pipe is not good (the height is not enough, not the highest point of the system or the diameter of the water supply pipe is too small)

4. The external circulation pipeline of the chiller is blocked

5. The internal pipelines of the chiller are blocked

6. There are impurities in the pump

7. Wear rotor in the water pump causes the pump aging problem

 

The flow rate of the chiller depends on the water resistance generated by the external equipment; the greater the water resistance, the smaller the flow.

Source: https://www.teyuchiller.com/chiller-water-circulation-system-and-water-flow-fault

What is the refrigeration principle of the fiber laser chiller?

Have you ever wondered how TEYU fiber laser chillers work? Let me introduce you to its amazing cooling system!

Refrigeration Principle Of Water Chiller For Supporting Equipment:

The chiller's refrigeration system cools the water, and the water pump delivers the low-temperature cooling water to the laser equipment that needs to be cooled. As the cooling water takes away the heat, it heats up and returns to the chiller, where it is cooled again and transported back to the fiber laser equipment.

Refrigeration Principle Of The Water Chiller Itself:

In the refrigeration system of a chiller, the refrigerant in the evaporator coil absorbs the heat of the return water and vaporizes it into steam. The compressor continuously extracts the generated steam from the evaporator and compresses it. The compressed high-temperature, high-pressure steam is sent to the condenser and later releases heat (heat extracted by the fan) and condenses into a high-pressure liquid. After being reduced by the throttling device, it enters the evaporator to be vaporized, absorbs the heat of the water, and the whole process circulates constantly. You can set or observe the working status of the water temperature through the temperature controller. 

TEYU water chiller manufacturer has 21 years of experience in cooling industrial processing equipment, exported to more than 50 countries and regions, with an annual shipment of more than 100,000. We're a reliable partner for cooling your laser machines!

Source: https://www.teyuchiller.com/TEYU-fiber-laser-chiller-refrigeration-principle

Guangzhou Teyu Electromechanical Co., Ltd.

SKYPE: teyuchiller

Email: marketing@teyu.com.cn

Website: https://www.teyuchiller.com

Tel: +86-20-89301885

Fax: +86-20-84309967

About TEYU Chiller Brand

S&A(TEYU) Chiller was founded in 2002. After 21 years of development, the headquarter covers an area of 25,000 square meters and has above 400 employees.  

Why choose TEYU Chiller

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 in USA and Europe;

Manufacturing Advantages:

1. Independent R&D on sheet metal, evaporator, condenser, and cores parts of chiller;

2. Annual output 10 0,000 units, product exports rate above 60%；

3. Standard bulk production, standard parts rate up to 80% ；

4. With an excellent laboratory testing system, simulates the actual working environment for the industrial water chiller.

What are the systems that make up a laser welding machine?

Laser welding is achieved by using a high-energy beam to transform into heat energy to radiate onto the workpiece, then instantly melting and bonding the material. The speed of laser welding is fast that it can satisfy the needs of continuous mass production. Its advantages such as smooth and beautiful processing workpiece, polish-free treatment can save time and costs for manufacturers. Laser welding has gradually replaced the traditional welding. So what are the main components of a laser welder?

1. Laser welding host

Laser welding host machine mainly produces laser beam for welding, which is made up of power supply, laser generator, optical path and control system.

2. Laser welding auto workbench or motion system

This system is used to realize the movement of laser beam according to the welding track under specific requirements. To realize the automatic welding function, there are 3 control forms: workpiece moves with laser head fixed; laser head moves with workpiece fixed; both laser head and workpiece move.

3. Work fixture

During the laser welding process, laser welding work fixture is used to fix the welding workpiece, making it can be repeatedly assembled, positioned and disassembled, which benefits the automatic welding of the laser.

4. Viewing system

Generic laser welder should be equipped with a viewing system, which is conducive to the accurate positioning during the welding programming process and the effect inspection when welding.

5. Cooling system

During the operation of the laser machine, a large amount of heat is generated. So water-cooled way is needed to cool down the laser machine and keep it to the proper temperature range, which helps to ensure the laser beam quality and output power, and prolongs the service life of the laser.

S&A laser welding machine chiller comes with dual temperature control system, while the high temperature circuit cools the laser head and the low temperature circuit cools the laser machine. One device serves several purposes, which saves costs and space. The laser chiller is also equipped with multiple warning protections: time-delay and over-current protection of compressor, flow alarm, ultrahigh/ultralow temperature alarm.

Due to the flexible requirement of laser welding, handheld laser welding machine is popular on the market. Correspondingly, Teyu launches all-in-one handheld laser welding machine chiller, which can be flexibly used matching with your handheld laser welder.

Source: https://www.teyuchiller.com/main-components-of-a-laser-welder

The improvement of laser cutting technology and its cooling system

The metal processing industry has been ushering in waves of change in today’s society with rapid technological development. Metal processing is mainly the cutting of metal materials. For the need of production, there is increasing cutting demand for metal materials of different textures, thicknesses and shapes. And the requirements for the workpiece cutting process are higher and higher. Traditional cutting can no longer satisfy the needs and is replaced by laser cutting, which is the main technology in the metal processing industry.

Compared with traditional cutting methods, what advantages does laser cutting technology have?

1. Laser cutting technology features higher cutting precision, faster cutting speed and smooth & burr-free cutting surface. Non-contact processing between the laser head and the workpiece will not cause scratches on the workpiece surface, without the step of secondary grinding. The high-precision processed product can improve the material utilization rate and save production costs.

2. Cost-saving and efficient. Professional computer-controlled cutting software supports cutting into any complex graphics and words, which greatly saves labor and time costs for enterprises to realize highly automatic processing, ensure good cutting quality and improve production efficiency.

3. Wide application. Laser cutting machine, with unmatchable production advantages compared with other traditional cutting processes, is not only applicable to precise component processing but also large metal plate pipe processing.

Although laser metal cutting has huge advantages over traditional cutting methods, along with the higher requirements, it still has several major pain points: (1) Higher power laser cutting devices are chosen to satisfy the processing thickness needs; (2) Batch processing of high-reflectivity materials often leads to laser damage; (3) The processing efficiency of non-ferrous materials is low.

The appearance of the laser scanning cutting machine: The laser scanning machine newly developed by Bodor Laser adopts a self-developed optical system device, optical path space programming technology and patent process algorithm to achieve: (1) At the same power, the ultimate cutting thickness has been greatly increased; (2) At the same power and thickness, the cutting speed has been significantly improved. (3) Fearless of high reflectivity, it solved the problem that high-reflectivity materials can not be processed in scores.

Whether it is the laser cutting machine or laser scanning cutting machine, its cutting principle is to rely on the laser beam irradiation on the surface of the workpiece, so that it can reach the melting or boiling point. Meanwhile, beam-coaxial high pressure gas blows away molten or vaporized metals, during which immense heat is generated thus will affect the workpiece, reducing the quality of processing products. S&A laser chiller can provide laser cutting/laser scanning cutting machines with a reliable cooling solution featuring a constant temperature, constant current and constant voltage. S&A chiller, which can precisely control the temperature and stabilize the beam output to ensure the continuous and stable operation of laser cutting machines, is a good helper in cooling your laser equipment!

Source: https://www.teyuchiller.com/improvement-of-laser-cutting-technology-and-its-cooling-system

What should be paid attention to when using an industrial water chiller?

Only by using the chiller in an appropriate environment can it play a greater role to reduce processing costs, improve efficiency, and prolong the laser equipment service life. What should be paid attention to when using industrial water chillers?

1. The operating environment

Recommended environment temperature：0～45℃, environment humidity：≤80%RH.

2. Water quality requirements

Use purified water, distilled water, ionized water, high-purity water and other softened water. But oily liquids, liquids containing solid particles, and liquids corrosive to metals are prohibited.

Recommended antifreeze ratio: ≤30% glycol (added to prevent water freezing in winter).

3. Supply voltage and power frequency

Match the power frequency of the chiller according to the usage situation and ensure that the frequency fluctuation is less than ±1Hz.

Less than ±10% of power supply fluctuation is allowed (short-time operation does not affect the use of the machine). Keep away from electromagnetic interference sources. Use the voltage regulator and variable-frequency power source when necessary. For long time operation, the power supply is recommended to be stable within ±10V.

4. Refrigerant usage

All series of S&A chillers are charged with environmental-friendly refrigerants (R-134a, R-410a, R-407C, compliant with the environmental protection requirements of developed countries). It is recommended to use the same type of the same refrigerant brand. The same type of different refrigerant brands can be mixed to use, but the effect may be weakened. Different types of refrigerants should not be mixed.

5. Regular maintenance

Keep a ventilated environment; Replace the circulating water and remove dust regularly; Shutdown on holidays, etc.

Source: https://www.teyuchiller.com/precautions-for-using-industrial-water-chillers

Utilizing Laser Marking Technology in COVID-19 Antigen Test Cards

The raw materials of COVID-19 antigen test cards are polymer materials such as PVC, PP, ABS, and HIPS, which come with the following characteristics:

(1) Favorable physical and mechanical properties, as well as chemical stability. 

(2)Readily available and inexpensive, ideal for the production of disposable medical supplies.

(3)Ease of processing and low manufacturing cost, great for various molding methods, facilitating the processing into intricate shapes and new product development.

UV laser marking is to use an ultraviolet laser to directly destroy the chemical bonds connecting the atomic components of the substance. This kind of destruction is called the "cold" process, which does not produce heating to the periphery but directly separates the substance into atoms. In the production of POCT detection reagent cards, laser processing can make full use of high energy to promote the carbonization of the surface of the plastic itself or decompose certain components on the surface to form a green body to make the plastic foam, so that color difference between the laser acting part of the plastic and the non-acting area can be formed to form the logo. Compared with ink printing, UV laser marking features a better effect and higher production efficiency.

UV laser marking machine is capable of marking various types of text, symbols, and patterns on the surface of antigen detection boxes and cards. The use of laser processing is highly efficient and convenient, making it an ideal choice for the fine processing of plastic products. It can mark a range of information including text, logos, patterns, product and serial numbers, production dates, barcodes, and QR codes. The "cold laser" processing is precise and the industrial personal computer has strong anti-interference capabilities, ensuring long-term stable operation and long service life. Additionally, it can operate continuously for 24 hours.

TEYU Industrial Chiller boosts the stable marking of the UV laser marking machine

No matter how good the equipment is, it needs to operate at a specified temperature, especially the laser. Excessively high temperatures can lead to unstable laser light output, impacting marking clarity and equipment efficiency. TEYU UV laser marking chiller helps the marking machine to stably mark COVID-19 antigen test cards. Under TEYU CWUP-20 chiller’s precise temperature control, ultraviolet laser markers can maintain a high beam quality and stable output, optimizing marking accuracy. Additionally, the chiller has passed rigorous international quality standards, including CE, ISO, REACH, and RoHS certifications, making it a reliable and efficient tool for cooling UV laser marking machines!

Source: https://www.teyuchiller.com/application-of-laser-marking-on-COVID19-antigen-test-card

How to judge the quality of industrial water chillers？

Industrial water chillers have been widely applicable to a broad range of fields, including the laser industry, chemical industry, mechanical processing manufacturing industry, electronic industry, automobile manufacturing industry, textile printing, and dyeing industry, etc. It's no exaggeration that the quality of the water chiller unit will directly affect the productivity, yield, and equipment service life of these industries. From what aspects can we judge the quality of industrial chillers?

1. Can chiller cool quickly?

A good-quality industrial chiller can cool down to the temperature set by the user in the shortest time because the range of space temperature needs to be lowered is different. If it needs to consume more energy in a unit of time to decrease the temperature, it means the cost of using the industrial water chiller is significantly high, which will lead to a continuous increase in enterprise expenses. This point can determine whether the water chiller can reduce production costs for the enterprise.

2. Can chiller control the temperature precisely?

Industrial chillers can be divided into heat dissipating type (passive cooling) and refrigerating type (active cooling). The ordinary passive cooling industrial chiller is not demanding in temperature precision, expected to dissipate the heat for the industrial device generally. 

Refrigerating type of industrial chiller allows their users to set the water temperature. It is highly sensitive to the machine temperature in the laser industry, so the temperature precision of the laser chiller is extremely important to the laser source.

3. Can chiller alert timely?

Whether there are multiple alarm functions, and whether these alarms ring timely in case of emergency are all-important to both the processing equipment and laser chiller.

Generally, industrial chillers need to run for a long period. A long working time will also cause workpiece wear and failure. So, prompt alarm warnings can remind users to handle the problem quickly and protect equipment safety and production stability.

4. Are component parts good?

An industrial chiller consists of compressor, evaporator, condenser, expansion valve, water pump, etc. The compressor is the heart; Evaporator and condenser play the role of heat absorption and heat release respectively. The expansion valve is the flow regulating valve in the refrigeration system as well as the throttling valve in the refrigeration equipment.

The above-mentioned parts are the core components of laser chiller. The quality of components also determines the chiller quality.

5. Are the manufacturer qualified? Are they operating in accordance with the norms?

Qualified industrial chiller manufacturer boasts scientific test standards, so their chiller quality is relatively stable.

S&A industrial chiller manufacturer possesses a full-equipped laboratory test system to simulate the chillers’ operational environment, and each water chiller goes through a series of rigorous inspections before delivery. The specially-compiled instruction manual gives users a clear introduction to the chiller installation and maintenance. We provide a 2-year warranty to relieve users from worries. Our professional after-sales team always responds timely to solve various problems for our clients.

S&A Chiller has been established for 21 years, with chiller temperature precision of ±0.1℃ and multiple alarm functions. We also possess an integrated material procurement system and adopt mass production, with an annual capacity of 100,000 units, a reliable partner for enterprises.

Information from https://www.teyuchiller.com/how-to-judge-the-quality-of-industrial-water-chiller

In the early stage of industrial development, R12 and R22 were used in most industrial refrigeration equipment. The cooling capacity of R12 is significantly large, and its energy efficiency is also high. But R12 caused great damage to the ozone layer and was forbidden in most countries.

Refrigerants R-134a, R-410a, and R-407c, in compliance with the international environmental protection requirement, are used in S&A industrial chillers:

(1)R-134a (Tetrafluoroethane) Refrigerant

R-134a is an internationally recognized refrigerant that is commonly used as a replacement for R12. It has an evaporation temperature of -26.5°C and shares similar thermodynamic properties with R12. However, unlike R12, R-134a is not harmful to the ozone layer. Due to this, it is extensively used in vehicle air conditioners, commercial and industrial refrigeration systems, and as a foaming agent for producing hard plastic insulation materials. R-134a can also be used to create other mixed refrigerants, such as R404A and R407C. Its main application is as an alternative refrigerant to R12 in automobile air conditioners and refrigerator refrigeration.

(2)R-410a Refrigerant

Physical and Chemical Properties: Under normal temperature and pressure, R-410a is a chlorine-free, fluoroalkane, non-azeotropic mixed refrigerant. It is a colorless, compressed liquefied gas that is stored in steel cylinders. With an Ozone Depletion Potential (ODP) of 0, R-410a is an environmentally-friendly refrigerant that does not harm the ozone layer.

Main Application: R-410a is mainly used as a replacement for R22 and R502. It is known for its cleanliness, low toxicity, non-combustibility, and excellent cooling performance. As a result, it is widely used in household air conditioners, small commercial air conditioners, and household central air conditioners.

(3)R-407C Refrigerant

Physical and Chemical Properties: R-407C is a chlorine-free fluoroalkane non-azeotropic mixed refrigerant under normal temperature and pressure. It is a colorless, compressed liquefied gas that is stored in steel cylinders. It has an Ozone Depletion Potential (ODP) of 0, making it also an environmentally-friendly refrigerant that does not harm the ozone layer.

Main Application: As a replacement for R22, R-407C is characterized by its cleanliness, low toxicity, non-combustibility, and excellent cooling performance, widely used in household air conditioners and small and medium-sized central air conditioners.

In today's era of industrial growth, the preservation of the environment has become a pressing concern, making "carbon neutrality" a top priority. In response to this trend, S&A industrial chiller manufacturer is making a concerted effort to utilize eco-friendly refrigerants. By collaboratively promoting energy efficiency and minimizing emissions, we can work towards creating a "global village" characterized by pristine natural landscapes.

Find more about S&A industrial chiller manufacturers at https://www.teyuchiller.com/news