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How to Choose and Use Recirculating Water Chiller to Be Both Stable and Efficient?

2025-06-17 11:29

Regarding the question of how to choose and use recirculating water chiller to be both stable and efficient. Today, we have combined some use cases, from application scope, selection points to daily maintenance and other aspects, to compile a practical reference guide for everyone, hoping to help everyone in the process of purchasing and using recirculating water chiller! Let me take a look at it together!


I. Main application scenarios of laboratory recirculating water chiller:

Analytical instruments and industrial testing:

The mass spectrometer in the laboratory needs to be continuously cooled to keep the ion source stable. By equipping with a recirculating water chiller with a cooling capacity of 1800W, the temperature of the ion source is controlled at a certain temperature.

Semiconductor manufacturers use recirculating water chiller to dissipate heat for vacuum coating machines, reduce film thickness errors through high-precision temperature control (±0.3℃), and improve product quality.

recirculating water chiller

II. Precautions for purchasing laboratory recirculating water chillers:

The following points should be noted when purchasing:

1. Calculation of cooling capacity requirements: Calculate the cooling capacity according to the heat load of the experimental equipment (formula: Q=instrument power×1.2), and avoid selecting too large or too small models. If the laboratory runs two 5kW reactors at the same time, the total cooling capacity requirement should reach more than 12kW.

2. Temperature range: For conventional experiments (such as biological culture), choose 5~35℃ models; low-temperature experiments require customized models below -25℃.

3. Equipment size: Choose an integrated or split model according to the laboratory space. Small laboratories can choose a compact recirculating water chiller that only occupies 0.5㎡.

recirculating water chiller

III. Precautions for use and maintenance:

1. Installation environment: The equipment should be placed in a cool room that avoids direct sunlight to prevent poor heat dissipation.

2. Regular maintenance: When not in use for a long time, dust protection should be done to prevent dust from clogging the heat exchanger. Clean the filter every month, check the refrigerant pressure quarterly, and replace the lubricating oil annually. In addition, the condenser and evaporator should be cleaned regularly to prevent scaling or blockage.

3. Fault warning and handling: Check the sensor calibration or evaporator status when the water temperature fluctuates greatly. If the temperature of the reactor is out of control due to temperature sensor drift, this problem can be solved by calibrating the sensor.


Our KJ-5300 series recirculating water chiller has a cooling capacity of up to 1800W and can be used to cool high-power lasers. It has two working modes: constant temperature and intelligent temperature control. The intelligent temperature control mode can adjust to the corresponding water temperature as the temperature changes. There is no problem of adjusting the water temperature due to seasonal changes. The machine has a compact structure, small size and is easy to move.


Main features:

The recirculating water chiller uses imported compressors and large-flow high-lift water pumps, which are safe, environmentally friendly, energy-saving and durable.

It has compressor delay protection, compressor overcurrent protection, cooling water flow, high and low temperature alarm functions.

One-stop fully automatic intelligent temperature control, no need to change in different environments, can automatically switch to the appropriate control temperature.

The intelligent thermostat has two temperature control modes, suitable for different occasions.

Stable working performance and long service life.

Optional heater and purified water configuration.


In addition, this series of recirculating water chiller product models include: KJ-5300AG, KJ-5300AH, KJ-5300AI.

KJ-5300AH can be used to cool a single 150W CO2 glass laser tube, or cool less than 2 machining center axes with a total power of less than 14KW;

KJ-5300AI can be used to cool a single 200W CO2 glass laser tube, a single 100W semiconductor laser, a single 50W-75W solid laser, a single 100W CO2 metal RF tube, a single 18KW CNC spindle or welding equipment.


If you think our company's recirculating water chiller can meet your needs, please feel free to contact us. After purchasing our products, we will provide detailed instructions for the use of the equipment. At the same time, if the manual cannot teach you how to use it, we also have professional technicians who will provide online remote guidance. Looking forward to your letter!

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