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  • Water Quality Requirements for Industrial Water Cooled Chillers Sep 11, 2025
    Water cooled chillers are essential equipment in the refrigeration industry, widely used in industrial production and commercial buildings. Water chillers are primarily composed of a compressor, condenser, evaporator, and expansion valve, working together in a refrigeration cycle to transfer heat and achieve cooling effects. In industrial production, water-cooled chillers precisely control process temperatures; in commercial buildings, they create a comfortable indoor environment.   However, the stable operation of a water-cooled chiller is closely related to water quality. Proper water quality is crucial for its efficient operation and extended lifespan. 1. pH Level The ideal pH range for water is between 6.5 and 8.5. Water with a pH below 6.5 is acidic and can corrode the chiller’s metal components. Water with a pH above 8.5 is alkaline and can lead to scaling, which affects the chiller's performance.   2. Water Hardness Water hardness is another critical factor. The total hardness should not exceed 200mg/L (calculated as calcium carbonate). High hardness levels can lead to the formation of scale, reducing cooling efficiency, increasing energy consumption, and even causing blockages in the pipes.   3. Turbidity Turbidity should be kept below 5 NTU. Higher turbidity can cause suspended particles to wear down equipment, clog filters, and reduce heat exchange efficiency.   4. Microorganisms Microbial content must also be carefully monitored. Excessive microbial growth can result in biological slime buildup, which corrodes equipment, decreases heat exchange efficiency, and causes blockages in pipes.   High quality water is crucial for the optimal performance of a water cooled chiller. Hengde, with its extensive experience in refrigeration equipment development and production, offers water cooled chillers that not only deliver excellent cooling performance but also consider water quality compatibility. We provide comprehensive water quality treatment advice and equipment maintenance plans, helping industries meet their cooling needs efficiently and reliably. Hengde has earned a strong reputation in the refrigeration market for its high-quality products and services.   Choose Hengde, Choose Perfect Chillers!
  • What is the Function of the Mold Temperature Controller? Sep 02, 2025
    Mold temperature controllers (MTCs) are essential pieces of equipment in industries such as plastics, rubber, die-casting, and injection molding. These devices are designed to regulate the temperature of molds during the manufacturing process, ensuring optimal product quality and production efficiency. The importance of maintaining the correct mold temperature cann't be overstated, as it directly impacts the precision and consistency of the final product.     Functionality of Mold Temperature Controllers Mold temperature controllers serve several key functions, all geared towards improving the efficiency of industrial molding processes:   1. Precise Temperature Control: The primary function of an MTC is to maintain a stable, uniform temperature in the mold. In the manufacturing processes such as injection molding, blow molding, and die - casting, the temperature of the mold has a significant impact on the performance of the production process and the quality of the final product. For example, in injection molding, if the mold temperature is too low, the plastic melt may cool down too quickly, resulting in uneven filling of the mold cavity, short shots, and poor surface quality of the product. On the contrary, if the mold temperature is too high, it may cause over - heating of the plastic, leading to material degradation, warping, and other defects. A mold temperature controller can accurately adjust the temperature, usually within a very small temperature deviation range (such as ±0.5°C or even smaller), ensuring that the mold temperature remains at the optimal value required by the production process.   2. Heating and Cooling: An MTC provides both heating and cooling functions. By regulating the temperature of the mold, it ensures that the material doesn't cool too quickly, preventing issues such as warping or cracks. On the other hand, it also prevents overheating, which can result in defects like flash or uneven surface quality.   3. Consistency and Quality: Mold temperature controllers help ensure consistent temperatures across the entire mold surface. This consistency reduces the likelihood of defects and variability, resulting in higher-quality products with fewer defects, which is critical in industries where precision is vital.   4. Energy Efficiency: Modern mold temperature controllers are designed to be energy-efficient, minimizing energy waste by adjusting the heat and cooling cycles in real-time. This contributes to lower operational costs while maintaining production speed and quality.   5. Faster Production Cycles: By keeping the mold temperature under control, MTCs help to speed up production cycles. A stable temperature reduces the need for constant adjustments, allowing for faster and more consistent output, which is a significant advantage in high-volume manufacturing environments.   6. Cost Reduction: By preventing common molding problems, such as warping or dimensional changes, mold temperature controllers help to reduce scrap and rework. This not only improves product quality but also cuts down on material costs and production downtime.   Why Choose Nanjing Hengde Electrical Equipment Co., Ltd? At Nanjing Hengde Electrical Equipment Co., Ltd, we specialize in producing high-quality mold temperature controllers and industrial chillers that are engineered to deliver precision and reliability. With over many years of experience in the industry, we have developed a reputation for providing innovative solutions tailored to meet the specific needs of our clients. Our water mold temperature controllers and oil mold temperature controllers are designed to ensure optimal performance in a wide range of applications, offering enhanced energy efficiency, superior temperature control, and faster production cycles.   Whether you're working with injection molding, die-casting, or rubber processing, Hengde’s mold temperature controllers provide the accuracy and consistency needed to achieve high-quality results. For more information on our products and solutions, please visit our website at www.hengdechiller.com.   Choose Hengde,Choose Perfect Mold Temperature Controller!
  • How to Properly Handle Excess Refrigerant in Chillers: A Step-by-Step Guide Aug 22, 2025
    In the daily operation and maintenance of industrial chillers, various issues may arise. One common problem is excessive refrigerant charge, which not only affects the efficiency of the industrial chiller but can also lead to equipment malfunctions, increased energy consumption, and higher maintenance costs. So, what should be done when it is determined that a industrial chiller has been overcharged with refrigerant? In this article, we’ll provide a detailed guide on how to handle this issue properly.   Step 1: Confirm the Excess Refrigerant To determine if the industrial chiller has an excessive amount of refrigerant, use a pressure gauge to check the high and low pressures. Once confirmed, turn off the industrial chiller’s power to ensure safe operation and prevent any accidental restarts during the process.   Step 2: Wear Protective Equipment Before starting, make sure to wear protective gloves, goggles, and other safety gear to avoid refrigerant contact with your skin and eyes. Additionally, inspect the surrounding area for any potential fire hazards and ensure good ventilation in the operating environment.   Step 3: Release the Excess Refrigerant To safely release the refrigerant, specialized tools and techniques are required. For example, using recovery equipment, you can transfer the excess refrigerant into a storage container. During the refrigerant release process, it’s crucial to follow environmental regulations to avoid releasing refrigerants directly into the atmosphere, which could contribute to environmental pollution. Also, monitor system parameters such as pressure and temperature to determine when the refrigerant charge reaches the correct level. When the system pressure is within the normal operating range, it indicates that the refrigerant has been properly adjusted, and you can stop the recovery process.   Step 4: Restart the Chiller and Monitor Performance Once the refrigerant has been properly released, restart the chiller and observe key operational parameters, such as pressure, temperature, and current. This ensures that the chiller is running smoothly. Additionally, verify that the cooling effect meets the desired performance standards. If any issues arise, shut down the chiller immediately and perform further inspections and troubleshooting.   Important Notes on Refrigerant Handling It’s essential to note that handling and adjusting refrigerant levels should only be performed by qualified technicians to ensure safety and accuracy. During routine maintenance or repairs, always adhere to the chiller’s technical specifications and requirements for refrigerant charging to avoid overcharging or undercharging.   By following these detailed steps and precautions, you can effectively resolve the issue of excess refrigerant in water cooled chiller and air cooled chiller, allowing your equipment to return to stable and reliable operation. This ensures that your cooling system continues to provide dependable cooling support for production and daily activities.   About Hengde Company As a leading enterprise in the industry, Hengde has been dedicated to the refrigeration equipment field for many years. We have extensive technical experience and a professional R&D and after-sales team. Hengde is committed to providing high-quality cooling solutions and comprehensive technical support to our clients worldwide. Choose Hengde, Choose Perfect Chillers!
  • How To Choose The Heat Transfer Oil For The Injection Molding Mold Temperature Controller? Aug 12, 2025
    Injection molding dedicated mould temperature controller machines are auxiliary temperature control devices applied in the production and molding process of injection molding machines. They can heat the injection molds to the production process temperature and maintain the temperature of the injection molds stably at the required value for a long time. According to the different heating and heat transfer media, they can be divided into Water mould temperature controller machines and oil mould temperature controller machines.   Hengde Company, a leading enterprise in the field of industrial temperature control equipment, has rich experience in the research, development, and production of mould temperature controller machines. Our mould temperature controllers are widely recognized for their high quality and excellent performance. When it comes to the oil mould temperature controller machines dedicated to injection molding, how should one select the appropriate heat transfer oil? Hengde Company recommends that when purchasing heat transfer oil for injection molding dedicated mould temperature controller machines, you can consider the following key aspects: Injection Mold Temperature Controller 6kw Injection Molding Mold Temperature Controller Injection Water Mold Temperature Controller 6kw Injection Molding Mold Temperature Controller Hengde Injection Mold Temperature Controller 6kw Injection Molding Mold Temperature Controller   1. Temperature Range Different mould temperature controller machines have different temperature requirements. Therefore, it is necessary to choose heat transfer oil that can meet these temperature needs. Generally speaking, the higher the temperature of the mould temperature controller machine, the lower the viscosity of the heat transfer oil; conversely, the lower the temperature of the mould temperature controller machine, the higher the viscosity. Thus, when selecting heat transfer oil, it is essential to ensure that its viscosity matches the temperature of the mould temperature controller machine.   2. Performance of Heat Transfer Oil The key performance indicators of heat transfer oil include high-temperature resistance, viscosity, flash point, carbon residue, acid value, and moisture content, etc. Ensure that the selected heat transfer oil can withstand the operating temperature of the mould temperature controller machine and has a long service life. High quality heat transfer oil should have a high thermal conductivity coefficient, good thermal stability, and a long service life. These properties can ensure that the heat transfer oil is not easily decomposed or oxidized at high temperatures, thereby extending the service life of the mould temperature controller machine.   3. Environmental Performance of Heat Transfer Oil Nowadays, more and more enterprises pay attention to environmental protection. Therefore, it is also necessary to choose environmentally friendly heat transfer oil. Environmentally friendly heat transfer oil is friendly to the environment, does not produce harmful substances, and is in line with the current trend of green environmental protection.   4. Price of Heat Transfer Oil The prices of heat transfer oils of different brands and models vary. Generally speaking, high quality heat transfer oil is more expensive. Therefore, when selecting heat transfer oil, on the premise of ensuring performance and environmental performance, try to choose heat transfer oil with a reasonable price. At the same time, choose brands with a good reputation to ensure that their quality and performance meet relevant industry standards and certification requirements.   In conclusion, when selecting heat transfer oil for injection molding dedicated mould temperature controller machines, multiple factors such as the temperature range, performance, environmental performance, and price should be comprehensively considered to select the most suitable heat transfer oil. Hengde Company is committed to providing customers with professional solutions and high-quality mould temperature controllers. Additionally, pay attention to choosing a regular heat transfer oil supplier to ensure that the purchased heat transfer oil is of reliable quality and reasonable price. For example, ESSO 50, Mobil 603, and Mobil 605 are all good choices. Oils cannot be mixed, as this will create sludge and cause blockage. Please replace the circulating oil regularly. If the unit is used at temperatures above 150°C for extended periods, check the oil every three to six months and replace it based on the actual situation. When replacing the circulating oil, be sure to prevent water or foreign objects from entering the tank.   Choose Hengde, Choose Perfect Mold Temperature Controller!
  • Application Of Electroplating Chillers In The Electroplating Industry Aug 06, 2025
    In the electroplating and surface finishing industry, maintaining a consistent solution temperature is critical to achieving high-quality coating results. Whether you're operating a zinc plating line, acid copper plating, or anodizing process, investing in the right chiller for electroplating is essential for performance and product consistency.   Why Temperature Control Matters in Electroplating? During electroplating, the chemical reactions between the metal ions and the substrate generate significant heat. Without an efficient electroplating water chiller, bath temperatures can quickly exceed the optimal range, leading to: Poor coating adhesion Irregular plating thickness Excessive chemical consumption Shortened bath lifespan   A properly selected chiller electroplating system ensures your plating solutions stay within the desired temperature range—reducing downtime and waste, and increasing coating quality.   What Makes a Good Electroplating Chiller? When choosing a Chiller for Electroplating Industry use, here are key features to consider: 1. Anti-Corrosion Materials Since plating baths involve corrosive chemicals, the evaporator in the chiller must be made from stainless steel or titanium tubes to resist corrosion and maintain long-term stability—especially in Zinc Plating Chillers and Acid Copper Plating Chillers. 2. Stable Cooling Precision The electroplating chiller must deliver consistent cooling even under variable production loads, avoiding temperature fluctuations that affect coating thickness. 3. Customized Refrigerant Options For clients in environmentally regulated regions, like Europe, Electroplating Chiller Manufacturers like HENGDE offer eco-friendly refrigerants such as R-407C or R-513A. Systems can also be tailored based on local compliance and technical standards. 4. Experience in the Industry A reliable Chiller for Electroplating should come from a manufacturer with deep expertise. HENGDE has delivered numerous Plating Anodizing Chillers and has supported clients across Europe, Asia, and North America with tailored cooling systems for chrome, nickel, copper, and aluminum plating.   Air Cooled or Water Cooled Chillers — Which Is Right for Your Electroplating Workshop? When it comes to choosing a Chiller for Electroplating, both air cooled Chillers and water cooled chillers are widely used—but which one suits your facility best?   For workshops with limited water access, simpler installation requirements, or those located in areas with strict water usage regulations, air cooled electroplating chillers are often the better choice. They don’t require cooling towers or additional water circulation systems, making them ideal for facilities that prioritize convenience and lower maintenance.   On the other hand, water cooled chillers for electroplating are typically more energy-efficient and stable in environments where ambient temperatures fluctuate greatly or where high-capacity cooling is needed continuously. However, they do require a reliable water source and more complex setup.   If you're running Zinc Plating Chiller systems, Acid Copper Plating Chillers, or Anodizing Chillers, your ideal chiller type depends on factors like workshop layout, cooling capacity needs, local utility costs, and environmental compliance.   Not sure which one to choose? As an experienced Electroplating Chiller Manufacturer, HENGDE offers both air and water cooled options, and we’re here to help you select the most cost-effective and efficient cooling system for your plating operation. Certainly, you can also check our this blog:Electroplating Water Cooled Chiller Or Electroplating Air Cooled Chillers? Electroplating Chillers Electroplating Water Cooled Chiller Electroplating Air Cooled Chiller   Typical Applications of Electroplating Chillers HENGDE's range of electroplating chillers has been widely used in various surface treatment processes, including: Zinc plating (acid and alkaline baths) Nickel and chrome plating Acid copper electroplating Anodizing and hard anodizing Electrophoretic and vacuum coating   Whether you're running a Water Chiller for electroplating in a hardware finishing line or operating a Chiller for Electroplating Coating Industry, temperature stability remains the key to consistent product quality.   Ready to enhance your plating line with a high-performance cooling system? Contact HENGDE today to explore our full range of chillers for electroplating, including electroplating water chillers, anodizing chillers, and custom-built plating chillers for your application.   Choose Hengde, Choose Perfect Electroplating Chiller!
  • Oil vs. Water Mold Temperature Controller Machine for Rubber Injection Molding Jul 28, 2025
    Hengde Company, a renowned enterprise in the industrial temperature control field, has been committed to the research, development, and production of high performance mold temperature controller equipment. Our products, including both water mold temperature controller machines and oil mold temperature controller machines, have been widely used in various plastic and rubber processing industries, providing reliable temperature control solutions for our customers. When it comes to the rubber injection molding process, the choice between an oil mold temperature controller machine and a water mold temperature controller machine is a common concern. In fact, both oil mold temperature controller machines and water mold temperature controller machines belong to the category of mold temperature machines, and the fundamental difference between them lies in the heat transfer media they use. Water mold temperature controller machines use water, while oil mold temperature controller machines use heat conducting oil. In the rubber injection molding process, each has its own advantages and disadvantages, and the choice of which equipment to use mainly depends on specific production requirements and conditions.   1.Operating Temperature Oil mold temperature controller machine: Oil mold temperature controller machines can provide a much higher operating temperature, usually reaching 300℃, 350℃ or even higher. For some rubber materials that require high temperature injection molding, such as certain special type rubbers, oil mold temperature controller machines can meet their processing temperature requirements. This ensures that the rubber materials are fully melted, achieving good fluidity, which is convenient for filling the mold cavity and thus obtaining high quality rubber products.   Water mold temperature controller machine: The operating temperature of water mold temperature controller machines is generally below 180℃. If the temperature required for the rubber injection molding process is within this range, water mold temperature controller machines can be applied. For the injection molding of ordinary rubber materials, water mold temperature controller machines can provide stable temperature control to ensure product quality.   For example, a customer's PP material has a molding temperature range of 160℃ - 220℃, and the mold temperature needs to be kept constant within this range during the molding process.Since the heating range exceeds 180℃, a water mold temperature controller machine is unsuitable. An oil mold temperature controller machine is recommended.   2.Heat Transfer Efficiency Oil mold temperature controller Machine: The specific heat capacity of oil is relatively smaller than that of water. However, at high temperatures, the heat transfer performance of oil is stable, and it will not generate a large amount of steam like water at high temperatures, which could lead to pressure problems. In injection molding processes that require rapid heating or cooling, oil mold temperature controller machines can transfer heat to the mold more quickly, improving production efficiency.   Water mold temperature controller machine: Water has a large specific heat capacity. Under the same temperature change, it can absorb or release more heat. In injection molding processes with a small temperature variation range, water mold temperature controller machines can utilize this characteristic to control the mold temperature more stably, with relatively small temperature fluctuations.   3.Safety Oil mold temperature controller machine: Oil is a flammable substance. When using an oil mold temperature controller machine, fire prevention measures need to be taken. Open flames should be avoided around the equipment, and corresponding fire extinguishing equipment should be equipped. At the same time, the sealing requirements of oil mold temperature controller machines are relatively high to prevent oil leakage from triggering safety accidents.   Water mold temperature controller machine: Water is non flammable. Compared with oil - temperature machines, water mold temperature controller machines are safer. In some production environments with strict fire prevention requirements, water mold temperature controller machines are a more suitable choice.   4.Cost Oil mold temperature controller machine: The price of oil is relatively high, and it needs to be replaced after a period of use, increasing the operating cost. In addition, the maintenance cost of oil temperature machines is also relatively high. The heating system, circulation system, and other components need to be regularly inspected and maintained to ensure the normal operation of the equipment.   Water mold temperature controller machine: Water is low cost and easily accessible. The maintenance of water mold temperature controller machines is relatively simple, mainly inspecting and maintaining components such as pipelines and water pumps, and the operating cost is low.   In summary, if the rubber injection molding process requires high temperatures, has requirements for heating speed, and can meet the safe use conditions of oil temperature machines, then an oil mold temperature controller machine may be more suitable. Because heat conducting oil is used as the heat transfer medium, it has excellent thermal stability, and the temperature control range is from room temperature to 400℃, which can meet the heating needs of various high temperature materials. If the molding temperature is within the operating temperature range of a water mold temperature controller machine, and there are strict cost  control requirements while pursuing high safety, a water mold temperature controller machine is a better choice. Because the temperature control range of a water mold temperature controller machine is from room temperature to 180℃, and it uses clean water resources as the heat transfer medium, which is clean, environmentally friendly, and pollution free. Coupled with the excellent heat conduction performance of water, it can heat the mold very quickly. Equipped with a PID ± 1℃ intelligent temperature controller, it can fully meet the requirements of the injection molding process.     In actual injection molding process production, since the heat required temperature of most injection molding materials is below 180℃, many manufacturers choose to use water mold temperature controller machines as auxiliary temperature control equipment for the injection molding process, and relatively fewer use oil mold temperature controller machines. Overall, whether to choose an oil mold temperature controller machine or a water mold temperature controller machine should be compared according to the actual situation. Hengde Company always provides professional advice and high quality products to help customers make the most suitable choice for their production processes.   Choose Hengde, Choose Perfect Mold Temperature Controller!  
  • Application Of Industrial Chillers In The Plastics Industry Jul 21, 2025
    As a leader in the refrigeration equipment industry, Hengde has leveraged its extensive technical expertise and innovative R&D capabilities to provide efficient and reliable industrial chiller solutions across a range of industries. Among these, application in the plastics industry stands out. In the complex and temperature-sensitive production processes of plastic manufacturing, industrial chillers play an indispensable role and have become key equipment for improving product quality and production efficiency.     1. Plastic Molding Mold Cooling In the plastic molding process, the cooling phase of the molds has a significant impact on both product quality and production efficiency. Hengde chillers come into play by precisely controlling mold temperatures. With efficient heat exchange mechanisms, the chillers quickly remove heat from the molds, accelerating the plastic curing process. This not only significantly reduces cooling time, allowing for faster mold release, but also greatly improves production efficiency. Furthermore, Hengde chillers ensure even distribution of mold temperature, preventing surface defects such as flow marks or stress concentration caused by uneven cooling. This results in enhanced product appearance, dimensional accuracy, and prevents deformation and shrinkage during cooling, ensuring products remain stable and meet high-precision manufacturing standards.   2. Plastic Processing Machinery Injection Molding Machine: Injection molding machines are crucial in plastic production. Hengde chillers are specifically designed for injection molding machines, providing vital support for ensuring high-quality injection molding operations. During the injection process, the chiller machine works in tandem with the injection machine to continuously cool the mold, ensuring even heat dissipation of the plastic product. This guarantees high-quality production and meets the high-precision requirements of complex injection-molded products.   Extrusion Molding Machine: For extrusion molding machines, Hengde chillers provide effective cooling for the extruder and mold, precisely controlling processing temperatures. This ensures dimensional stability of the extruded products and eliminates size deviations caused by temperature fluctuations. Additionally, it improves surface finish, resulting in smoother, higher-quality plastic products that meet premium product standards.   Blow Molding Machine: For blow molding and thermoforming equipment, Hengde chillers provide stable temperature control to create the ideal thermal environment for product formation. During blow molding, precise cooling ensures even wall thickness of the molded products, improving product strength. In thermoforming, quick and uniform cooling allows products to set faster, increasing production efficiency while ensuring consistent product quality.   3. Other Plastics Processing Industries In addition to core applications in molding and processing machinery, Hengde chillers also play an essential role in the production lines of plastic pipes, cable trays, cables, and other plastic profiles. Once these products are molded, the chiller quickly cools them, ensuring that they maintain stable physical properties during the cooling process.    Hengde Industrial Chiller In Plastic Processing: When selecting a industrial chiller, Hengde’s professional team helps plastic manufacturers consider various factors. Based on production scale and thermal load requirements of the plastic processing, we precisely calculate the required cooling capacity. Depending on site conditions and energy supply, we recommend the most appropriate cooling method. For instance, air-cooled chillers are suitable for areas with limited water resources, while water-cooled chillers are more efficient for large-scale heat dissipation needs. We also factor in power specifications, environmental temperature, and humidity to ensure that the chiller is perfectly suited to the production environment. After installation, Hengde provides comprehensive maintenance plans, including regular deep cleaning, safety checks on electrical systems, and timely replacement of wear-and-tear parts to ensure long-term stable operation, extending the chiller's lifespan and supporting continuous production for plastic manufacturers.   Choose Hengde, Choose Perfect Chillers!
  • Application Of Oil Mold Temperature Controller In Reactor Jul 14, 2025
    Hengde Company is a leader in the field of industrial temperature control and has long focused on the research and development and manufacturing of mold temperature controllers. With advanced technology and rich experience, Hengde mold temperature controllers have excellent performance, stability and accuracy, providing reliable solutions for the temperature control of reactors, and are widely used in reactor systems in many industries such as chemical, pharmaceutical, and food.   1. The working principle of oil mold temperature controller in reactor As a temperature control device for reactors, oil mold temperature controllers are widely used in chemical, pharmaceutical, and food industries, mainly for precise control of the temperature in reactors. Its working principle is to use heat transfer oil as a heat transfer medium, use an electric heater to heat the heat transfer oil, and then use a circulating pump to transport the heated heat transfer oil to the jacket or coil of the reactor to exchange heat with the material in the reactor, thereby achieving control of the temperature of the material in the reactor.   2. The following are the application scenarios of reactor oil mold temperature controller in different industries (1) Chemical industry Polymerization reaction: In the polymerization reaction of polymer materials such as synthetic resins and rubber, the temperature in the reactor has a crucial impact on the molecular weight, molecular structure and performance of the polymer. Hengde mold temperature controller can accurately control the reaction temperature to ensure that the polymerization reaction proceeds at a predetermined rate and direction, thereby improving the quality and stability of the product. For example, when producing polyethylene, the temperature of the reactor can be stably controlled within a suitable range by the mold temperature controller, which can make the molecular chain distribution of polyethylene more uniform and improve its tensile strength and toughness.   Esterification reaction: Esterification reaction is usually an exothermic reaction, and the heat generated by the reaction needs to be removed in time to control the reaction rate and balance. The cooling function of the mold temperature controller can quickly remove the reaction heat and maintain the temperature in the reactor stable. At the same time, at the beginning of the reaction, the mold temperature controller can quickly heat the reactor to the temperature required for the reaction to accelerate the start of the reaction. For example, in the process of producing ethyl acetate, the mold temperature controller can ensure that the reaction is carried out at the optimal temperature and increase the yield of ester.   (2) Pharmaceutical industry Drug synthesis: The drug synthesis process has extremely strict requirements on temperature, and different reaction steps may require different temperature conditions. Hengde oil mold temperature controller can accurately adjust the temperature of the reactor according to the requirements of the pharmaceutical process to ensure the accuracy and repeatability of the drug synthesis reaction. For example, in the synthesis process of antibiotics, the oil mold temperature controller can control the reaction temperature within a very small error range to ensure the purity and activity of the drug.   Crystallization process: The crystallization process of the drug directly affects the crystal form, particle size and purity of the drug. The oil mold temperature controller can promote the crystallization process of the drug by accurately controlling the cooling rate and temperature of the reactor, and obtain the ideal crystal form and particle size distribution. This is of great significance for improving the stability and bioavailability of the drug.   (3) Food industry Oil hydrogenation: During the oil hydrogenation process, the temperature in the reactor will affect the rate of the hydrogenation reaction and the saturation of the product. The oil mold temperature controller can accurately control the reaction temperature so that the oil hydrogenation reaction proceeds according to the predetermined degree and produces hydrogenated oil products that meet quality standards.   Food additive synthesis: The synthesis of food additives requires strict control of reaction conditions, and temperature is one of the key factors. The oil mold temperature controller can provide a stable temperature environment for the reactor to ensure the quality and safety of the synthesis of food additives.   3. Application advantages (1) Accurate temperature control The oil mold temperature controller can achieve high-precision temperature control, usually reaching a temperature difference of ±1°C, which is particularly important for chemical and pharmaceutical processes that require strict control of reaction temperature. At the same time, the oil mold temperature controller can be customized according to different process requirements to meet various complex temperature control requirements and is suitable for different types of reactors and production processes. Whether it is chemical products, medicines or foods, they can all benefit from a stable temperature environment.   (2) Improve product quality Accurate temperature control can make the chemical reaction in the reactor more stable and controllable, reduce the occurrence of side reactions, and thus improve the purity, quality and consistency of the product.   (3) Improve production efficiency The heat transfer oil has a high thermal conductivity and specific heat capacity. The oil mold temperature controller can quickly heat and cool the reactor and shorten the reaction cycle. At the same time, stable temperature control can reduce equipment downtime and product defective rate caused by temperature fluctuations, and improve production efficiency and equipment utilization.   (4) Reduce energy consumption Hengde oil mold temperature controller adopts advanced energy-saving technology and intelligent control system, which can automatically adjust heating and cooling power according to the actual temperature demand of the reactor, avoid energy waste, and reduce energy consumption costs in the production process.   (5) Extend equipment life A stable temperature environment can reduce the thermal stress caused by temperature changes in the reactor, reduce the risk of equipment wear and damage, extend the service life of the reactor, and reduce equipment maintenance and replacement costs.   4. Application Case When a chemical company was producing a new type of plastic additive, the original temperature control equipment could not meet the temperature accuracy requirements of the reactor, resulting in unstable product quality and a high defective rate. After the company introduced Hengde oil mold temperature controller, the oil mold temperature controller was able to accurately control the temperature in the reactor within the range of ±1℃. The quality of the product has been significantly improved, and the defective rate has been reduced from the original 15% to less than 3%. At the same time, the production cycle has been shortened by 20% and energy consumption has been reduced by 15%, bringing significant economic benefits to the company.   5. Selection and maintenance recommendations for oil mold temperature controllers Temperature range: Select an appropriate oil mold temperature controller according to the temperature range required by the reactor. Heating and cooling power: Select appropriate heating and cooling power according to the volume of the reactor and process requirements. Control system: Select a mold temperature controller with high-precision control and a good user interface. Safety function: Ensure that the oil mold temperature controller has the necessary safety protection functions.   Choose Hengde, Choose Perfect Mold Temperature Controller!
  • How to Use a Mold Temperature Controller Effectively in Summer? Jul 07, 2025
    As the scorching summer heat arrives, ensuring the optimal performance of your mold temperature controller becomes more important than ever. Whether you're using a water mold temperature controller or an oil mold temperature controller, proper operation during the summer months plays a key role in maintaining product quality, extending equipment life, and reducing energy consumption.   Industries such as plastics, rubber, chemicals, construction, and surface treatment all rely heavily on stable and accurate temperature control. In this article, we’ll share essential tips and best practices for using your mold temperature controller effectively in the summer.   1. Pre-Summer Inspection and Maintenance Before high temperatures hit, conduct a comprehensive inspection of your mold temperature controller. Look for issues such as: Leaks in the piping system Damaged electrical components Faulty or unresponsive sensors   Don't forget to clean the heat exchanger and cooling coils. Dirt, debris, and scale buildup can hinder heat transfer, forcing the mold temperature controller to work harder and increasing the risk of overheating.   If you notice temperature fluctuations, check for blocked filters, calibration errors, or sensor malfunctions. Regular maintenance ensures that your water mold temperature controller or oil mold temperature controller operates at peak efficiency all summer long.   2. Ensure Proper Ventilation and Cooling Good ventilation is essential for any mold temperature controller, especially during hot weather. Here's how to improve airflow: Keep the area around the unit free of obstructions. Avoid installing the mold temperature controller in direct sunlight or near other heat sources. If used outdoors, consider installing a protective sunshade or enclosure. Add extra fans or a ventilation system if necessary to maintain a steady air exchange.   Both water mold temperature controllers and oil mold temperature controllers are sensitive to environmental temperature, so keeping the surrounding area cool directly improves system performance.   3. Monitor Performance and Analyze Data Use built-in sensors or external monitoring tools to regularly track key parameters such as: Temperature accuracy Pressure and flow rate Power consumption   Analyzing this data helps you detect unusual patterns—like a spike in energy usage or a drop in temperature control accuracy—which may signal potential problems in your mold temperature controller. Early detection allows for timely maintenance and helps avoid costly downtime.   4. Train Your Staff for Summer Operations Operators must understand how to run and maintain a mold temperature controller, especially during extreme weather. Key areas of training should include: Correct temperature setting for both water mold temperature controllers and oil mold temperature controllers Recognizing warning signs of overheating or malfunction Following scheduled maintenance procedures   Encourage team members to report any irregularities immediately. Well-trained personnel contribute significantly to the long-term stability and performance of your temperature control system.   Final Thoughts Using your mold temperature controller correctly in summer is not just about protecting your equipment—it's about optimizing your entire production process. Whether you’re working with a water mold temperature controller for injection molding or an oil mold temperature controller for high-temperature applications, these practices will ensure stable operation, better product quality, and reduced energy costs.   At Hengde, we don’t just manufacture mold temperature controllers—we provide customized temperature control solutions for your unique production needs. Whether you require a standard unit or a fully OEM/ODM mold temperature controller, we are here to help. Have questions about mold temperature control this summer? Contact Hengde today.   Choose Hengde, Choose the Perfect Mold Temperature Controller!
  • Application of mold temperature controller in composite material molding process Jul 04, 2025
    As a pioneer in the field of industrial temperature control, Hengde has always been committed to developing and providing advanced temperature control solutions. In the field of composite mold die casting, which is full of challenges and opportunities, Hengde has provided key mold temperature controller products to many companies with its outstanding technical strength and rich industry experience, helping companies improve production efficiency and product quality.   The head of a well-known aerospace parts production company that has cooperated with us for many years gave feedback: "Before using Hengde composite material compression molding temperature controller, we often had quality problems such as bubbles and uneven strength in the products during filament winding and compression molding processes due to unstable temperature control, and the scrap rate remained high. Since the introduction of Hengde temperature controller, these problems have been solved. Its temperature control accuracy is extremely high, and it can be accurately regulated according to the temperature curve we set, which greatly improves the quality stability of the product. Moreover, its efficient heating and cooling system has shortened our production cycle by nearly 30% and significantly reduced production costs. Hengde temperature controller is really a powerful assistant for us to improve production efficiency!"   The following are common and key application scenarios of mold temperature controllers in composite material molding processes: 1. Filament winding: In the filament winding molding process, the fiber is first fully impregnated with resin through the resin glue tank, and then wound on the continuously rotating core mold according to a carefully designed rule. After winding, the glue needs to be heated to solidify and mold. In this process, Hengde mold temperature controller can accurately control the heating temperature to ensure that the glue is uniformly cured under suitable temperature conditions, thereby improving the strength and stability of the winding products and meeting the stringent requirements of high-end fields such as aerospace for material performance.   2. Pultrusion: For the pultrusion process, the carbon fiber roving or its fabric is pulled by external force and goes through the steps of dipping, extrusion molding, heating and curing, and fixed-length cutting in sequence. Hengde composite material mold temperature controller plays a key role in the heating mold link. Through precise temperature control, it can significantly speed up the curing time, greatly improve production efficiency while ensuring product quality, and meet the needs of large-scale production in industries such as automobile manufacturing.   3. Resin transfer molding (RTM): In the resin transfer molding process, the reinforcement material is first made into a preform and placed in a closed mold, and then the resin is injected into the mold under the dual action of vacuum and pressure to cure it. Hengde mold temperature controller effectively speeds up the curing speed by accurately heating the mold, greatly improving production efficiency, and has been widely used in fields such as electronic equipment component manufacturing.   4. Compression molding: Compression molding is a process in which the molding material is placed in a metal mold and solidified under specific pressure and temperature conditions. In many compression molding processes, such as short fiber compression molding, felt compression molding, rag compression molding, lamination compression molding, winding compression molding, fabric compression molding, directional laying compression molding, preformed embryo compression molding, sheet molding compound compression molding (SMC compression molding), etc., Hengde mold temperature controller plays an indispensable role. It can accurately adjust the mold temperature according to different process requirements to ensure that the quality of the molded products is stable and meets high standards.     Through its wide application in these key molding processes, Hengde composite compression mold temperature controller plays a vital role in aerospace, automobile, electronics and other fields with extremely high material performance requirements. It not only helps companies manufacture high-quality composite products, but also promotes the technological progress and development of the entire industry. Hengde will continue to uphold the spirit of innovation, continuously optimize product performance, provide better temperature control solutions for more industries, and work with customers to create a brilliant future.   Choose Hengde,Choose Perfect Mold Temperature Controller!
  • How Do Chillers Achieve Cooling Effectiveness? Jun 23, 2025
    Chillers achieve cooling primarily through the refrigeration cycle, where four key components—compressor, condenser, expansion valve, and evaporator—work in close coordination. Below is a detailed explanation of how chillers create an effective cooling process:   1.Compressor Pressurization The compressor, as the heart of the chiller, plays a crucial role in converting low-temperature, low-pressure refrigerant gas into high-temperature, high-pressure gas. During the compression process, the temperature and pressure of the refrigerant gas both rise. This change in state sets the stage for the subsequent condensation process, as refrigerant gas at higher pressures is more effective at transferring heat to the cooling medium, leading to a phase change.   2.Condenser Heat Exchange Once the high-temperature, high-pressure refrigerant gas enters the condenser, it undergoes heat exchange with the surrounding environment. In air cooled chillers, a fan drives air through the condenser to carry away heat, while water-cooled chillers utilize circulating water to absorb heat. During this process, the refrigerant gas cools down and condenses into a high-pressure liquid. Condensers are typically equipped with high-efficiency heat dissipation devices, such as variable-speed fans or enhanced heat exchange tubes, to improve heat transfer efficiency and speed up the refrigerant condensation process.   3.Expansion Valve Throttling and Pressure Drop When the high-pressure liquid passes through the expansion valve, there is a significant drop in both pressure and temperature. The primary function of the expansion valve is to regulate the flow of refrigerant, ensuring that it can fully evaporate in the evaporator, thereby achieving an effective cooling effect. This flow control is critical for maintaining the stable operation of the refrigeration system and optimizing its cooling efficiency.   4.Evaporator Heat Absorption The low-pressure, low-temperature refrigerant liquid enters the evaporator, where it quickly absorbs heat from the surrounding environment. In practical applications, chillers primarily absorb heat from cooling water, causing the refrigerant to vaporize into a low-temperature, low-pressure gas. During this process, the water inside the evaporator is cooled and then pumped to the equipment or systems that need cooling, transferring the heat and meeting the cooling demands of the system.   Through the continuous cycle of these four steps, chillers can reliably supply low-temperature cooling water to equipment or systems, ensuring stable operation under optimal temperature conditions. Compressor: Increases refrigerant pressure and temperature. Condenser: Dissipates heat, causing refrigerant to liquefy. Expansion Valve: Reduces refrigerant pressure. Evaporator: Absorbs heat, achieving cooling.   In summary, industrial chillers rely on the seamless cooperation of the compressor, condenser, expansion valve, and evaporator, as well as the continuous flow of refrigerant through these components, to achieve cooling. This process ensures the circulation of cooled water for various industrial applications and research experiments, providing reliable cooling support.    Hengde, with years of expertise in the chiller industry, is committed to continually optimizing product performance. Our chillers not only offer high cooling efficiency but are also equipped with intelligent control systems that precisely adjust cooling capacity to meet the diverse needs of different industries. With exceptional quality and comprehensive after-sales service, Hengde has built a strong reputation in the market, making it a trusted choice for companies seeking reliable refrigeration equipment.   Choose Hengde-Choose Perfect Chillers!
  • How to Debug a Oil Type Mold Temperature Controller? Jun 19, 2025
    Hengde Company, a renowned name in the industrial temperature control realm, has been committed to providing high quality mold temperature controllers for years. Our products are widely applied across various industries, characterized by their reliability, precision, and advanced technology. With a professional R & D team and excellent after - sales service, we ensure that every customer can make the most of our mold temperature controllers. Now, let's explore the professional debugging process of our mold temperature controllers.   Debugging Steps of the Oil Type Mold Temperature Controller 1. Preparation Before commencing the debugging, ensure the availability of a stable power supply and high quality thermal oil.    2. Power Connection Push the air switch and then turn on the power button. In case the air switch fails to be pushed up, check if the emergency stop button on the controller panel is pressed. If so, rotate the emergency stop button to its normal position. After turning on the power button, if the oil type mold temperature controller alarms, it is likely due to a phase - reversal issue. Immediately turn off the power supply and swap any two of the three incoming power lines. Once the phase - reversal problem is resolved, the controller can start normally.   3. Oil Filling After starting the machine, the oil mold temperature machine will trigger an oil shortage alarm. Gradually add thermal oil, until the entire pipeline is filled with oil and the oil shortage alarm in the oil tank ceases. Be cautious not to over fill the oil tank. As the oil heats up, the tank will release gas. Excessive oil may cause the gas to force the oil out of the tank. After oil filling, carefully inspect all pipelines of the oil mold temperature machine for any oil leaks. Once the pressure shown on the pressure gauge of the oil temperature machine stabilizes, the heating process can be initiated.   4. Heating Set the temperature on the controller for heating. Initially, set the temperature to 90℃ and closely monitor the stability of the pressure gauge. If the pressure gauge remains stable, it is safe to directly set the temperature to the required operating temperature.     Precautions Prior to starting the machine, always double - check whether the emergency stop button on the oil mold temperature controller panel is in the released state. A pressed emergency stop button will prevent the air switch from being closed. During the heating process, if there is a significant difference between the oil outlet temperature and the oil return temperature, with the oil outlet temperature rising rapidly, it is highly likely that the filter is blocked. Before further heating, remove and clean the filter to ensure normal oil circulation. If the oil mold temperature controller alarms for oil - shortage or lack of media, it may be caused by poor contact of the liquid level sensor (the cylindrical tube adjacent to the oil tank). Usually, a slight adjustment of the sensor can solve this problem. If the liquid level alarm function is not required, simply unplug the wire above the sensor.   After the debugging process is completed, it is crucial to record all the debugging parameters and the operating status of the mold temperature controller accurately. Compile these records into a detailed debugging report. Once the oil mold temperature controller is put into formal operation, regular maintenance and inspections should be carried out at fixed intervals. This ensures that the controller always operates in an optimal condition, providing reliable temperature control for your production processes.   At Hengde Company, we not only offer top - tier mold temperature controllers but also comprehensive support throughout the product lifecycle. Our professional team is always ready to assist you, ensuring that your investment in our products brings long - term benefits and efficient production.   Choose Hengde,Choose Perfect Mold Temperature Controller!
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