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Dongguan Hongsai injection molding machine freeze water machine is applied to the cooling of plastic processing machinery molding molds, which can greatly improve the surface smoothness of plastic products, reduce surface wrinkles and internal stress, prevent product shrinkage and deformation, facilitate the demolding of plastic products, accelerate product shaping, and greatly improve the production efficiency of plastic molding machines; Chillers are used in CNC machine tools, coordinate boring machines, grinding machines, machining centers, combination machine tools, and various precision machine tool spindle lubrication and hydraulic system transmission medium cooling. They can accurately control oil temperature, effectively reduce thermal deformation of machine tools, and improve machining accuracy of machine tools. 1. Stable performance: Multiple compressors are used in parallel, each compressor comes with an independent refrigeration circuit, that is, the evaporator and condenser are also completely independent; All compressors are commanded by a unified microcomputer control system, and are turned on and off one by one without any interference with each other. In addition, all machines of this brand are made of original genuine products, and the single machine failure rate is extremely low. Considering the above reasons, it can ensure that this series of machines has highly stable performance and is the first choice for long-term continuous operation without the need to purchase other spare machines.
2. Energy saving: Multiple small and medium power compressors are used in parallel, with minimal interference to the power grid during start-up and shutdown. As the load changes, the unit automatically determines the number of compressors to be started, ensuring that the compressors are in the best working condition and effectively saving electricity.
3. Long service life: The evaporator and condenser are designed very reasonably and placed above the compressor. Throughout the entire operation, the vast majority of lubricating oil stays inside the compressor, ensuring good lubrication of the compressor. Scope of application: plastic products, hardware, chemicals, electronics, food preservation, laser engraving, vacuum coating, ultrasonic cleaning; High power chillers are widely used as central air conditioning in hotels and office buildings, plastic cooling, food preservation, bath heating and cooling, medical storage and other industries.

Maintenance of water-cooled chiller
During normal operation, water-cooled chillers are inevitably affected by dirt or other impurities that can affect their cooling performance. Therefore, in order to extend the service life of the main unit and achieve better refrigeration performance, regular maintenance and upkeep should be carried out to ensure the quality of the chiller operation and improve production efficiency
The specific content is as follows:
1、 Regularly check whether the voltage and current of the chiller are stable, and whether the sound of the compressor operation is normal. When the chiller is working normally, a voltage of 380V and a current within the range of 11A-15A are normal phenomena.
2、 Regularly check whether there is any leakage of refrigerant in the chiller: refer to the parameters displayed on the high and low pressure gauges on the front panel of the main unit for judgment. According to temperature changes (winter, summer), the pressure display of the chiller also varies. When the chiller is working normally, the high pressure display is generally within the range of 11-17kg, and the low pressure display is within the range of 3-5kg, which is a normal phenomenon.
3、 Check whether the hot water system of the chiller is normal, whether the cooling tower fan and sprinkler shaft are running well, and whether the water replenishment of the built-in water tank of the chiller is normal.
4、 When the chiller is used for six months, it should be cleaned once a year. The main cleaning parts include the cooling tower, heat dissipation water pipes, and condenser to ensure better cooling effect.
5、 When the chiller is not in use for a long time, the circuit switches such as the water pump, compressor, and main power supply of the cooling tower should be turned off in a timely manner.
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