Application of Keno Laser Chiller in the Laser Industry
With the rapid growth of China's economy, the laser industry has also experienced significant development. Chillers, or circulating water coolers, have become essential in many laser applications. Currently, numerous manufacturers in China produce these devices, mostly using start-stop refrigeration systems that are often modified from household air conditioners. However, this type of system has limitations. During compressor shutdown, only the water in the tank can remove heat, leading to poor temperature control accuracy and requiring a large water tank, which is bulky and consumes a lot of water. Additionally, the heat exchange system typically uses a coil-type design, where the heat exchanger is immersed in the water tank, resulting in slow heat transfer efficiency.
Moreover, the frequent start-up of the compressor causes electrical disturbances, potentially affecting the power supply system and other equipment, while also reducing the lifespan of the compressor. In contrast, foreign manufacturers usually use non-start-stop chillers, which are more complex to manufacture and cannot be easily assembled or modified. As a result, only a few foreign or foreign-invested companies are capable of producing them today. These systems require a certain scale of production, making their prices higher than traditional start-stop models.
Some of the main manufacturers include US-based THERMO NESLAB, American LABTECH, and JULABO. Among them, LABTECH has established factories in China, offering the H series of water circulation chillers that incorporate advanced PID temperature control and Hot Gas Bypass technology. These chillers are equipped with high-efficiency plate heat exchangers, high-pressure rotary vane pumps, and environmentally friendly, fluorine-free refrigerants. The standard models offer cooling capacities ranging from 350W to 9000W with a temperature control accuracy of ±0.1°C. This makes LABTECH’s products competitive in terms of both price and service compared to other international brands.
Dongguan Kainuo Machinery has actively partnered with global industry leaders. Their current laser chillers integrate excellent heat exchange systems, including precision plate heat exchangers and accurate temperature sensing components, which have earned customer recognition. They have also introduced new products tailored for the majority of Chinese consumers.
The rapid development of the laser industry, especially in the laser show sector, has increased demand for high-quality circulating water coolers. These systems must meet international standards, offering continuous operation, high temperature control accuracy, good stability, and low failure rates. LABTECH has collaborated with the laser show industry to enhance functionality and improve various alarm features, such as low flow rate alerts, abnormal temperature readings, overheat protection, low water level warnings, and sensor fault detection. It also includes an RS232 interface, specifically designed for the laser industry. A stainless steel water pump is used to prevent copper ion contamination in the entire system.
The following table shows the technical specifications of the H100A circulating water cooler.
In addition, circulating water coolers are widely used in various laser equipment industries, including laser cutting machines, laser marking machines, laser engraving machines, laser welding machines, and laser drilling machines. Choosing high-end circulating water coolers with stable performance and comprehensive functions will drive the future development of the industry. The above information is provided by Dongguan Kainuo Machinery Co., Ltd.
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