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Dongguan Zili Refrigeration & Electromechanical Equipment Co., Ltd.Precision Temperature Control, Powering Industrial Excellence As a pioneer in industrial thermal management, Zili Refrigeration delivers turnkey solutions for smarter production. Our cutting-edge technologies redefine efficiency and reliability in temperature control systems.   ✦ Flagship Products ✦Complete Chiller Series: Air-cooled/Water-cooled Chillers, Thermostatic Chillers, Energy-saving Screw Chillers;High-performance Cooling Towers & ±0.5℃ Precision Mold Temperature Controllers;Plastic Auxiliary System: Crusher/Shredder/Material Loader/Mixer/Dryer for seamless production integration. √ AI-Optimized Energy Saving √ 24/7 Support√ 50+ Industry Applications √ Custom Engineering Solutions   Serving automotive, electronics, food/pharmaceutical and new energy industries, Zili empowers enterprises to achieve operational excellence.  Contact us NOW for FREE technical consultation + customized solution at www.zillionchiller.com or Whatsapps/Wechat +86 15602232700 (Hendrix Lee) +86 18520532504（Leika Li）. Let's co-create your competitive edge!

In the field of industrial production, industrial chillers, as key cooling equipment, play a crucial role in ensuring the continuity of production and product quality. And the quality of industrial chiller parts is the core factor that determines its overall performance and reliability.   First of all, high-quality parts are the foundation for ensuring the efficient operation of industrial chillers. For example, the compressor, as the core component of the chiller, directly affects the refrigeration efficiency and stability. High-quality compressors can maintain stable performance during long-term operation and provide reliable refrigeration effects, thereby reducing energy consumption and improving production efficiency. The quality of condensers and evaporators is equally important. They are responsible for heat exchange. Efficient condensers and evaporators can quickly and effectively dissipate heat and ensure that the refrigeration capacity of the chiller is always in the best state.   Secondly, good part quality helps extend the service life of industrial chillers. In an industrial environment, chillers usually need to operate continuously for a long time and endure various harsh working conditions. If the part quality is not up to standard, problems such as wear, corrosion, and damage are prone to occur, thereby shortening the service life of the chiller. High-quality parts have better durability and corrosion resistance and can operate stably for a long time in harsh environments, reducing equipment maintenance and replacement costs.   Furthermore, high-quality parts can improve the safety of industrial chillers. For example, the quality of parts in the electrical control system is directly related to the safe operation of the equipment. High-quality electrical components can ensure the stability and reliability of the circuit and avoid safety accidents caused by electrical failures. At the same time, high-quality pressure sensors, temperature sensors and other parts can accurately monitor the operating status of the chiller and detect and handle potential safety hazards in time.   In addition, high-quality parts can also improve the maintenance convenience of industrial chillers. When it is necessary to maintain and service the chiller, parts of good quality are easier to disassemble and install, reducing maintenance time and difficulty. Moreover, high-quality parts have a lower failure rate, reducing the frequency and cost of maintenance.   In conclusion, the importance of industrial chiller parts quality cannot be ignored. High-quality parts can not only ensure the efficient operation of chillers, extend service life, improve safety, but also improve maintenance convenience and provide reliable cooling guarantees for industrial production. Therefore, when choosing and using industrial chillers, great attention should be paid to part quality and choose high-quality products and reliable suppliers to ensure the sm...

In the field of industrial production, industrial refrigeration chillers play a crucial role as they can effectively provide a stable low-temperature environment for various equipment and processes. However, in daily use, the chiller may experience various faults and issue alarms. This not only affects production progress but may also cause damage to the equipment. Therefore, understanding how to release the alarms of industrial refrigeration chillers and the handling methods for common faults is of utmost importance.   I. The Importance of Chiller Alarms   The alarm system of chillers is designed to promptly remind users of abnormal conditions in the equipment so that corresponding measures can be taken for handling. These alarm messages usually include excessive temperature, abnormal pressure, water flow faults, and more. If not addressed in time, it may lead to equipment damage, production interruption, and even safety accidents.   II. Alarm Release Guide   Understand the meaning of alarm codes Different chiller brands and models may have different alarm codes. Users should first consult the equipment manual to understand the specific meanings of various alarm codes. This will help quickly determine the cause of the fault and take appropriate solutions. Check the equipment operating status When the chiller issues an alarm, immediately check the operating status of the equipment. This includes checking whether parameters such as water temperature, pressure, and water flow are normal. At the same time, observe whether there are abnormal noises, vibrations, or leaks in the equipment. Eliminate the cause of the fault Based on the alarm code and equipment operating status, gradually eliminate the cause of the fault. For example, if there is an excessive temperature alarm, it may be caused by a clogged condenser, insufficient refrigerant, or a malfunctioning cooling fan. Take corresponding solutions for different fault causes. Reset the alarm system After eliminating the fault, the alarm system needs to be reset. Usually, this can be achieved by pressing the reset button on the equipment or operating in the control system. After resetting, observe whether the equipment is operating normally to ensure that the alarm has been released.   III. Handling Methods for Common Faults   Excessive temperature fault Causes: Clogged condenser, insufficient refrigerant, malfunctioning cooling fan, etc. Handling methods: Clean the condenser, add refrigerant, and check whether the cooling fan is working properly. If the cooling fan is malfunctioning, it should be replaced or repaired in time. Abnormal pressure fault Causes: Refrigerant leakage, clogged filter, malfunctioning expansion valve, etc. Handling methods: Check whether there is a leakage in the refrigerant pipeline, replace the clogged filter, and adjust or replace the expansion valve. If the pressure is too high, some refrigerant can be released to reduce the pressure. Water ...

Recently, Dongguan Zili Refrigeration Equipment Co., Ltd. has achieved remarkable results again in the international market. Relying on its rich and diverse main products, it has emerged in the global refrigeration and industrial equipment fields, and its foreign trade business has continued to maintain a strong growth momentum.   As a leading enterprise in the R & D, production, and sales of refrigeration electromechanical equipment, Zili Refrigeration has a rich product line, covering core products such as industrial chillers, mold temperature control machines, plastic crushers, cooling towers, mixing machines, and plastic dryers. These products are not only technologically advanced but also have reached the international leading level in terms of performance and quality. In the refrigeration field, Zili Refrigeration's industrial chillers, with their high - efficiency refrigeration technology, can achieve precise temperature reduction in a short time, providing stable and reliable cooling solutions for industries such as chemical engineering, electronics, and food. Its unique intelligent control system can automatically adjust the cooling capacity according to different working conditions, greatly improving energy utilization efficiency and reducing enterprise operating costs.   The mold temperature control machine, specifically designed for mold manufacturing and processing enterprises, adopts advanced temperature - sensing technology and can precisely control the mold temperature within the range of ±0.1℃, effectively avoiding mold deformation and product quality problems caused by temperature fluctuations, and significantly improving the service life and processing accuracy of the mold. In the international mold market, this product has become the first choice of many well - known mold manufacturers. As a key equipment in plastic recycling and plastic product production, the plastic crusher has a powerful crushing capacity and a variety of tool configurations, and can easily meet the crushing needs of various plastic materials. From soft polyethylene to high - strength engineering plastics, it can achieve efficient crushing, providing strong support for the recycling of plastic resources.   As a core component of large - scale industrial cooling systems, the cooling tower adopts high - efficiency heat - dissipation packing and low - noise fan technology. While ensuring efficient heat dissipation, it effectively reduces the operating noise, creating a quieter production environment for overseas factories. Its energy - saving design concept reduces energy consumption by more than 20% compared with traditional cooling towers, and is highly praised by overseas customers. In terms of material processing, the mixing machine, with its precise control of the material mixing ratio and unique stirring structure, ensures the uniform mixing of different materials in a short time and is widely used in industries such as chemica...

As a new type of mixed refrigerant, R410 refrigerant is emerging in the market with its efficient refrigeration performance and relatively environmentally friendly characteristics. It is composed of R32 and R125 in a certain proportion and has stable chemical properties and excellent heat transfer efficiency.   In terms of environmental protection, the ozone depletion potential (ODP) of R410 refrigerant is zero, greatly reducing the harm to the earth's ozone layer. At the same time, its relatively low global warming potential (GWP) also makes it have positive significance in addressing climate change. With the increasing global attention to environmental protection, this advantage of R410 makes it the preferred choice for many refrigeration equipment manufacturers and users.   From a performance perspective, refrigerant R410 can achieve efficient refrigeration in a wider temperature range. Whether in hot summers or cold winters, it can maintain a stable refrigeration effect and provide a comfortable environment for industrial production and daily life. In addition, R410 also has a relatively high pressure ratio and can adapt to various types of refrigeration equipment to improve the operating efficiency of the equipment.   Many enterprises are also increasing their investment in the research and application of R410 refrigerant. Some industrial refrigeration equipment manufacturers have begun to launch new products using R410 refrigerant to meet the market's demand for efficient and environmentally friendly refrigeration solutions. At the same time, relevant technical experts are constantly exploring how to further optimize the performance of R410, reduce its use cost, and improve its applicability in different fields.   However, although refrigerant R410 has many advantages, it also faces some challenges in the process of promotion and application. For example, due to its relatively high pressure, the sealing and pressure resistance requirements for refrigeration equipment are also correspondingly increased, which may increase the manufacturing cost of the equipment. In addition, the recycling and treatment of R410 also require professional technology and equipment to ensure that it will not cause secondary pollution to the environment.   In general, as an efficient and environmentally friendly refrigeration choice, refrigerant R410 has broad development prospects. With the continuous progress of technology and the continuous improvement of environmental awareness, it is believed that R410 will play an increasingly important role in the field of industrial refrigeration and contribute to promoting sustainable development.

What Is a Plastic Hopper Dryer? A plastic hopper dryer is a drying machine specifically designed to remove moisture from plastic granules before they enter processing equipment such as injection molding machines, extruders, or blow molding machines. Moisture in plastic materials can cause serious quality problems including silver streaks, bubbles, warping, and reduced mechanical strength in finished products. How Does a Hopper Dryer Work? A hopper dryer works by blowing preheated air through a conical or cylindrical hopper filled with plastic granules. The hot, dry air absorbs moisture from the surface of the plastic pellets and is then exhausted or recycled through a dehumidifying system. The drying temperature typically ranges from 80°C to 180°C depending on the material type, and the drying time varies from 2 to 8 hours for most hygroscopic plastics such as PET, PA, and PC. Key Benefits of Using a Hopper Dryer Improved product quality: Effectively eliminates surface defects such as silver streaks, bubbles, and sink marks caused by moisture Higher production yield: Reduces scrap rates and rework, directly improving overall equipment effectiveness (OEE) Protects equipment: Moisture in plastic can cause corrosion and blockages in injection screws and barrels Energy efficient: Closed-loop air circulation minimizes heat loss and energy consumption Easy to operate: Digital temperature controllers allow precise temperature settings and automatic operation Versatile: Suitable for a wide range of plastics including PET, PA, PC, ABS, PMMA, and more How to Choose the Right Hopper Dryer Selecting the correct hopper dryer for your application depends on several factors: Material type: Different plastics have different moisture sensitivity levels. PET and PA require higher drying temperatures (160-180°C) than ABS or PP (80-100°C) Processing capacity: Choose a hopper size that matches your processing throughput; typical sizes range from 15kg to 800kg Drying temperature: Ensure the dryer can reach the temperature required by your specific material Dehumidifying system: For highly hygroscopic materials, choose a dryer with a molecular sieve or honeycomb rotor dehumidifier for lower dew point (-40°C to -70°C) Energy source: Options include electric heating (most common) and compressed air drying Material compatibility: Ensure the hopper is made of stainless steel and compatible with your specific plastic resin Conclusion A plastic hopper dryer is an essential piece of equipment for any plastic processing facility committed to producing high-quality products. Proper material drying prevents defects, reduces waste, and protects both your products and equipment. Whether you are processing standard resins or engineering-grade polymers, investing in the right hopper dryer will deliver immediate improvements in quality and efficiency. Contact us today to find the ideal hopper dryer solution for your production line.

What Is an Industrial Screw Chiller? An industrial screw chiller is a refrigeration system that uses twin-screw compressors to generate chilled water or heat-transfer fluid for industrial process cooling. Unlike traditional piston compressors, screw compressors use two intermeshing rotors to compress refrigerant, delivering higher capacity with smoother, more reliable operation. How Does a Screw Chiller Work? A screw chiller works by compressing refrigerant gas through two counter-rotating screws. The compressed refrigerant passes through a condenser (air-cooled or water-cooled), then through an expansion device, and finally through an evaporator where it absorbs heat from the process water circuit. The chilled water is then circulated to cool industrial equipment and processes. Key Advantages of Screw Chillers High efficiency: Screw compressors offer superior COP (Coefficient of Performance) compared to piston-type units, especially under partial load conditions Large cooling capacity: Single units can deliver from 50 RT to over 1000 RT, covering a wide range of industrial needs Compact design: Twin-screw technology allows for higher capacity in a smaller footprint Quiet operation: Fewer moving parts mean lower vibration and noise levels Stepless capacity control: Slide valve technology allows smooth capacity modulation from 25% to 100% to match actual cooling demand Long service life: Simple rotor design with fewer wearing parts results in extended maintenance intervals Typical Industrial Applications Plastic injection molding and extrusion cooling Chemical and pharmaceutical process cooling Metal plating and surface treatment Laser cutting and welding equipment Large-scale HVAC and comfort cooling Food and beverage processing How to Select the Right Screw Chiller When choosing an industrial screw chiller for your facility, consider these key factors: Cooling capacity (kW/RT): Calculate based on your process heat load with a safety margin of 15-20% Condenser type: Choose air-cooled for facilities with limited water supply, or water-cooled for higher efficiency in areas with adequate water resources Outlet water temperature: Standard industrial screw chillers typically deliver 5°C to 20°C chilled water; specify based on your process requirements Ambient conditions: Ensure the unit is rated for your local climate, especially for outdoor installation Energy efficiency: Look for units with high EER and IPLV ratings for lower operating costs Control system: Microprocessor controls with MODBUS or BACNET communication enable easy integration with factory automation systems Conclusion Industrial screw chillers represent a proven, high-efficiency solution for large-scale process cooling applications. With their superior energy efficiency, compact design, and reliable performance under demanding conditions, screw chillers are the preferred choice for factories across plastics, chemicals, metal finishing, and many other industries worldwide. Conta...