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In the previous article, we already mentioned How To Maintenance The Mold Temperature Controller? Covering fundamental maintenance tips such as cleaning, inspecting electrical components, checking oil/water quality, and ensuring proper circulation.   Building on that foundation, this guide will show you how to extend your mold temperature controller’s life, improve its efficiency, and reduce downtime. Whether you are using an Oil Type Mold Temperature Controller or a Water Type Mold Temperature Controller, following these best practices can save your facility time and money.   Why Proper Maintenance Matters A Mold Temperature Controller plays a crucial role in precision temperature control for injection molding, extrusion, rubber, and other process manufacturing. A well-maintained controller can run reliably for 7–10 years or more, while neglected equipment may face frequent breakdowns within 1–3 years. Extending your mold temperature controller’s lifespan not only improves production stability but also reduces repair costs, energy consumption, and unplanned downtime.   Core Maintenance Principles for Mold Temperature Controllers Before exploring advanced lifespan-extension strategies, let's quickly review the core maintenance points from the previous article: Maintenance Item Summary Pipe & filter cleaning Prevents clogging and ensures efficient circulation Pump inspection Reduces noise, vibration, and flow issues Electrical component check Prevents short circuits and safety hazards Temperature monitoring  Maintains stable process parameters Medium selection (oil/water) Ensures proper heat transfer and system longevity   Following these steps consistently is the first step to achieving optimal performance. 1. Choose the Right Medium and Maintain It Properly Selecting the correct medium is essential for Mold Temperature Controller Maintenance: Water Type Mold Temperature Controller: Suitable for temperatures below 180°C（356˚F）. Pay attention to scaling and corrosion. Oil Type Mold Temperature Controller: Ideal for applications above 200°C（392˚F）. Use high-quality thermal oil to prevent oxidation and carbonization.   Note：If you use an oil mold temperature controller, please be aware of carbon build-up inside the heating tubes, as it is a key factor that reduces heating efficiency and shortens equipment life. Over time, high-temperature oil may deteriorate and form carbon deposits, which act as an insulating layer and prevent proper heat transfer. When heat cannot disperse effectively, the heating tubes are forced to work under higher load, increasing energy use and the risk of overheating or tube failure. To avoid this, perform routine checks, replace aged thermal oil in time, and clean the system when needed. This helps keep the heating tubes efficient, safe, and durable. 2. Maintain a Stable Operating Environment The installation and surrounding environment affect the lifespan of your mold temperature controller: Avoid humid, dusty, or corrosive conditions. Ensure proper ventilation and heat dissipation. Do not place near furnaces, hot mold surfaces, or machine exhaust outlets. A stable environment reduces stress on pumps, electrical components, and heating elements, helping improve mold temperature controller efficiency over time. 3. Avoid Frequent Heating and Cooling Cycles Frequent temperature changes accelerate metal fatigue, wear on seals, and electrical stress. To minimize this: Keep the process temperature as stable as possible. Gradually adjust temperatures when cooling down or heating up. Lower the temperature to a safe range before powering off. By reducing thermal shock, both oil and water type mold temperature controllers can maintain optimal performance longer.   4. Use Genuine Spare Parts and Quality Components Each component inside a mold temperature controller contributes to the overall stability of the system. Pumps, heating elements, control boards, relays, and sensors are exposed to constant temperature fluctuations and mechanical stress.Low-quality components often lead to chain failures. Choose reliable brands for: Temperature controllers(For example, Omron, WEST and etc) Relays(ABB / Fuji Electric  / Omron / Siemens / Eaton, etc) Pumps and motors Heating tubes Electrical components (Schneider / Siemens / Eaton / ABB,etc） While the initial cost may be higher, the long-term benefits include reduced downtime, consistent temperature control, and extended device life.  5. Implement Preventive Maintenance A structured preventive maintenance schedule is more cost-effective than reactive repairs. Recommended intervals: Interval Maintenance Tasks Weekly Check leaks, alarms, pump flow, and temperature accuracy Monthly Clean filters, inspect pump pressure, check wiring Semi-annual Test oil/water quality, calibrate controllers, inspect safety valves Annual Full system check, including electrical testing, seal replacement, and pressure testing Documenting maintenance actions helps identify trends, anticipate failures, and improves the extend mold temperature controller lifespan goal.   6. Train Operators to Avoid Misuse Many failures are caused by improper operation rather than product defects: Running dry without circulation Turning on heating before starting the pump Operating beyond temperature limits Providing operator training for proper start-up, shutdown, and emergency procedures ensures safety and reliability, while also protecting your mold temperature controller investment. 7. Troubleshooting and Performance Optimization Despite careful maintenance, issues may arise. Familiarity with Mold Temperature Controller Troubleshooting techniques is essential: * Temperature Fluctuations: Check for pump flow issues or sensor misalignment. * Pump Noise or Vibration: Inspect for air pockets, worn bearings, or blocked filters. * Heating/Cooling Inefficiency: Assess medium quality, heating element condition, or heat exchanger performance. * Early troubleshooting prevents minor issues from escalating, keeping production on schedule and maximizing controller lifespan.   Conclusion Extending the life of your Mold Temperature Controller requires more than routine cleaning—it involves a combination of correct medium use, stable operating environment, preventive maintenance, quality components, operator training, and smart monitoring. By following these strategies: You extend mold temperature controller lifespan. You improve mold temperature controller efficiency. You reduce the need for costly repairs through timely mold temperature controller troubleshooting. Whether you are using an Oil Type Mold Temperature Controller or a Water Type Mold Temperature Controller, a disciplined maintenance routine ensures your investment continues delivering reliable, precise temperature control for years.   For more detailed guidance, visit our previous article: How to maintenance the mold temperature controller?

Heat transfer rolls, also called chill rolls or converting rolls, are vital for maintaining quality and consistency in the converting industry. Hengde manufactures reliable temperature control units (TCUs) and industrial chillers that ensure precise thermal regulation, supporting smooth and efficient production. Whether you need controlled heating, cooling, or a combination of the two, our solutions are designed to meet your process demands with accuracy and dependability.    In the production of coating, laminating and printing, heat transfer rolls play a vital role in transferring heat uniformly. Achieving precise and stable roll temperature is crucial for consistent material thickness, smooth surface finishes, and high production efficiency. HENGDE offers advanced heat transfer rolls temperature control units (TCUs) to provide reliable thermal management, ensuring that each roll operates under optimal conditions.    How Hengde’s Temperature Control Units Operate Hengde’s temperature control units (TCUs) and industrial process chillers are engineered to maintain precise temperature management for heat transfer rolls.   Key Advantages of Our Temperature Control Unit Fluid Circulation: Water or oil flows through connected pipes or hoses, keeping the rolls at a stable temperature. Accurate Temperature Control: Easily adjustable to meet your specific process requirements for optimal efficiency. Flexible Application: Can be used for both heating and cooling, tailored to your production needs. PID Temperature Controllers – providing precise heat regulation within ±1°C Use Hengde’s temperature controller unit to choose the ideal temperature control solution for your converting process.   Applications for Heat Transfer Rolls Heat transfer rolls are used in a wide range of applications for precise temperature control in industrial processes like textile finishing, printing, laminating, and plastics manufacturing, particularly in coating, laminating, and printing. * Coating: Ensures uniform application of coatings on textiles, plastics, films, and metals for improved adhesion, texture, and durability. * Laminating: Maintains stable temperatures to bond layers in textiles, films, papers, and plastics efficiently. * Printing: Supports ink curing and finishing processes, improving print quality and reducing drying time.   These rolls are essential for consistent, high-quality results in a variety of industrial production settings.   Benefits of Hengde Temperature Control Using HENGDE Heat Transfer Rolls Temperature Control systems provides multiple advantages: Consistent Product Quality: Uniform temperature prevents defects such as wrinkles, uneven coatings, or delamination. Energy Efficiency: Intelligent controls optimize heating and cooling cycles to save power. Reduced Downtime: Faster stabilization of roll temperature reduces process delays. Extended Equipment Life: Stable temperatures reduce mechanical stress and wear on rolls.     Why Choose HENGDE Temperature Control Units for Heat Transfer Rolls? HENGDE has over 20 years of experience in industrial temperature control units and is a trusted partner for manufacturers worldwide. Our Heat Transfer Rolls Temperature Control Units are: Built with premium components from Schneider, Siemens, and Omron. Available in customizable configurations for both water mold temperature control units and oil mold temperature control units. Designed to meet rigorous industrial standards with long-term reliability. We focus on delivering solutions tailored to your production needs, ensuring precise control and optimal thermal performance for every roll.   Request a Custom Heat Transfer Roll Temperature Control Unit Quote Ready to improve your roll production process? Contact HENGDE today for a customized Heat Transfer Rolls Temperature Control Unit (TCU). Our engineering team can help you select the ideal water temperature control unit or oil temperature control unit for your specific application, ensuring consistent results, energy efficiency, and higher productivity.

At HENGDE, we understand that every heat transfer roll system has unique temperature control needs. That’s why our Temperature Control Units (TCUs) are engineered with flexible design options, advanced control systems, and durable components to optimize both performance and energy efficiency.     How HENGDE Temperature Controller Units(TCUs) Improve Process Performance？ * Precise Temperature Regulation Our Temperature Controller Units(TCUs) maintain exact temperature levels to ensure uniform roll performance and eliminate temperature drift. * Fast Heating and Cooling Cycles Using efficient heat exchangers and high-flow pumps, HENGDE units shorten startup times and minimize process delays. * Energy-Efficient Operation Smart control algorithms adjust power usage dynamically, reducing unnecessary heating or cooling. * Customized Design for Any Industry HENGDE supports OEM/ODM customization — from compact water temperature control units for fast-acting systems to oil temperature control units for high-temperature stability. * Reliable Components and Safety Every unit integrates premium electrical and hydraulic parts from brands like Siemens and Schneider, ensuring long-lasting reliability.   Whether your operation requires fast response or high-temperature consistency, HENGDE provides the perfect balance of precision and durability. By integrating HENGDE Heat Transfer Rolls Temperature Control Units, you gain greater control, consistency, and confidence in your heat transfer processes.Our water temperature control unit and oil temperature control unit deliver unmatched reliability and customization to meet every industrial demand.   Learn more about HENGDE’s full range of Temperature Control Units (TCUs) and how we can support your specific production needs.

Heat transfer rolls — sometimes referred to as chill rolls or converting rolls — are essential components in many converting industry operations. Hengde offers premium temperature control units (TCUs) and industrial chillers engineered for accurate temperature management, helping your production run efficiently and without interruptions. Whether your application calls for precise heating, effective cooling, or both, our TCUs and chillers provide dependable performance customized to your process requirements.   1. The Importance of Consistent Temperature in Roll-Based Processes  In processes like coating, printing, and lamination, even minor temperature variations on a heat transfer roll can cause visible defects or material inconsistencies. That’s why a reliable Heat Transfer Rolls Temperature Control Unit (TCU) is essential to maintaining uniformity, efficiency, and quality.   2. The Risks of Poor Temperature Regulation Without proper temperature control:  * Coatings may become uneven or peel off * Films can stretch or wrinkle * Laminated layers may lose adhesion * Surface finish quality can decline These issues not only affect product appearance but also increase waste and downtime.   3. How Hengde Temperature Control Units (TCUs) Solve These Problems？ A well-designed Temperature Control Unit continuously circulates heated or cooled fluid (water or oil) through the roll, stabilizing the temperature throughout the production run. HENGDE’s Heat Transfer Rolls Temperature Control Units use intelligent control logic and PID precision to keep temperature fluctuations within ±1°C — ensuring each batch maintains identical quality.   4. Benefits of Consistent Temperature Control * Improved Product Uniformity Stable roll temperature produces smooth, consistent materials. * Reduced Energy Waste Efficient TCUs help maintain heat balance without excessive energy consumption. * Higher Productivity Fewer reworks and production interruptions. * Longer Equipment Lifespan Controlled heating reduces stress on mechanical parts and roll surfaces. Accurate and reliable temperature management is not optional — it’s essential. With HENGDE’s Heat Transfer Rolls Temperature Control solutions, you can achieve stable operation, superior quality, and long-term cost savings.    Want to know how these temperature controller units (TCUs) enhance system performance? Continue reading our next article: “How Temperature Controller Units Optimize Your Heat Transfer Roll System?”

Understanding the Role of TCUs in the Heat Transfer Roll Industry Heat transfer rolls, sometimes called chill rolls or converting rolls. In many industries-from film extrusion and coating to calendaring and lamination-heat transfer rolls are essential for achieving precise and uniform surface temperatures. To ensure stable roll performance, manufacturers rely on Heat Transfer Rolls Temperature Control Units (TCUs) that maintain consistent heating and cooling cycles during operation.   A Heat Transfer Rolls Temperature Control Unit precisely controls the roll’s surface temperature by circulating a thermal medium, typically water or oil (so, it also called heat transfer roll water temperature control unit and heat transfer roll oil temperature control unit), through the roll’s internal channels. This keeps the temperature uniform, preventing hot or cold spots that could affect product quality.   Types of Temperature Control Units (TCUs)   HENGDE offers two main categories of TCUs for different working conditions: Heat Transfer Roll Water Temperature Control Unit  Designed for medium-temperature operations that require rapid response and high heat transfer efficiency. Perfect for lamination, printing, and coating lines. Heat Transfer Roll Oil Temperature Control Unit Ideal for high-temperature applications. It ensures excellent thermal stability and prevents temperature overshoot even under heavy workloads.   Key Components of a HENGDE Heat Transfer Rolls Temperature Control Units Each HENGDE Temperature Control Unit features: Advanced PID temperature controllers. High-efficiency pumps and heat exchangers. Durable components from Schneider, Siemens, and Omron. Safety protections including overheat alarms and flow monitoring. Explosive device pipe. 304 stainless steel pipeline to reduce the tube group and rust. Imported microcomputer or PLC control. (Optional) RS485 communication function, automated management.(optional)   In short, Heat Transfer Rolls Temperature Control Units (TCUs) are the heart of every precision heating process. With HENGDE’s advanced water temperature control units and oil temperature control units, you can maintain consistent temperature, improve product quality, and extend the lifespan of your heat transfer rolls.   At Nanjing Hengde Electrical Equipment Co., Ltd, we specialize in manufacturing advanced temperature control units (TCUs) and industrial chillers that maintain consistent and accurate temperature levels throughout your production process. Our systems are built to handle heating, cooling, or integrated temperature control with outstanding reliability and efficiency, ensuring optimal performance for every application.   Next, explore why temperature control is so critical in heat transfer roll systems.

In the highly competitive plastic processing industry, how to improve production efficiency, ensure product quality and reduce costs is the focus of every enterprise. As a vital auxiliary equipment in the injection molding process, the water mold temperature controller machine for injection molding plays a key role in it. With years of technical accumulation and innovative spirit, Hengde Company has brought high quality water mold temperature controller machines for injection molding to the industry, helping enterprises to achieve efficient production. It has established a good reputation in plastic processing and has become a trusted partner of many companies.   Working principle of water mold temperature controller for injection molding The water mold temperature controller machine for injection molding uses water as a heat transfer medium and accurately controls the temperature of the mold through a heating and cooling system. During the injection molding process, the water mold temperature controller machine heats the water to the set temperature, and then delivers the hot water to the cooling channel of the mold through a circulating pump, so that the mold reaches and remains within the appropriate temperature range. When the mold temperature is too high, the water mold temperature controller machine can reduce the water temperature through the cooling system to ensure the stability of the mold temperature. This precise temperature control can ensure that the plastic material flows and forms evenly in the mold, and improve the quality and dimensional accuracy of the product.   Hengde's water mold temperature controller machine for injection molding adopts imported PC microcomputer touch control, European appearance, simple atmosphere. After starting up, it also has a unique automatic exhaust function, which can remove the air in the system and then heat it. The internal pipeline of the oil circulation heater adopts stainless steel one-piece molding technology, which heats evenly, is not easy to lose, and is resistant to high temperature and corrosion.   Advantages of Hengde injection molding dedicated water mold temperature controller machine 1. Accurate temperature control Hengde water mold temperature controller machine adopts advanced temperature sensors and intelligent control systems, which can monitor and adjust the water temperature in real time and control the mold temperature within the range of ±1℃. Whether it is small precision injection molding parts or large injection molding products, the stability and consistency of their quality can be guaranteed. For example, when producing plastic casings for electronic equipment, precise temperature control can avoid defects such as deformation and bubbles in the product and improve the yield rate of the product.   2. High efficiency and energy saving Hengde water mold temperature controller machine adopts efficient heating elements and optimized circulation systems, which can quickly heat and cool the mold and reduce the production cycle. At the same time, the intelligent energy-saving control system can automatically adjust the heating and cooling power according to the actual temperature requirements of the mold to reduce energy consumption. Compared with traditional temperature control equipment, Hengde water mold temperature controller machine can save 20% - 30% of energy costs and reduce production costs for enterprises.   3. Safe and reliable Hengde water mold temperature controller machine has multiple safety protection functions, such as overheat protection, overvoltage protection, leakage protection, etc., to ensure the safety of the equipment during operation. In addition, the equipment adopts high quality materials and exquisite manufacturing technology, has good corrosion resistance and stability, and reduces equipment failure and maintenance costs.   4. Easy to operate Hengde water mold temperature controller machine is equipped with an intuitive operation interface and a humanized control system. Operators can easily set and adjust parameters such as temperature and pressure. At the same time, the equipment also has fault alarm and diagnosis functions. When the equipment fails, it can promptly issue an alarm and display fault information, which is convenient for operators to repair and handle.   Application case Before using Hengde injection molding special water mold temperature controller machine, a well-known plastic product manufacturer had a low product yield and low production efficiency. After research and analysis by Hengde's professional team, a set of water mold temperature controller machine solutions suitable for its production process was customized for the company. After installing and using Hengde water mold temperature controller machine, the company's product yield increased by 15%, the production cycle was shortened by 20%, and energy consumption was reduced by 25%, achieving significant economic benefits.   In the plastic injection molding process, the injection molding dedicated water mold temperature controller machine is a key equipment to ensure product quality and production efficiency. When Hengde's injection molding dedicated water mold temperature controller machine is just started, the water source is introduced by the cooling circulation pipe, and the exhaust is automatically started. After the water in the whole system is replenished, observe whether the pressure gauge is stable. After the pointer is stable, the temperature value can be set. At this time, the heating device starts to work, and the temperature is detected by the temperature probe. If the temperature does not reach the set value, the heating device will continue to work until its temperature reaches the set value. After that, the temperature probe feeds back the signal to the computer board, and the computer board outputs a signal to stop heating. If the temperature exceeds the set value, the cooling solenoid valve is started, and some cold water is introduced for cooling until it reaches the set temperature and then closes. Hengde's injection molding dedicated water mold temperature controller machine provides an ideal temperature control solution for plastic processing companies with its advantages such as precise temperature control, high efficiency and energy saving, safety and reliability, and easy operation. In the future, Hengde will continue to uphold the concept of innovation, quality, and service, continuously improve product performance and service levels, and make greater contributions to the development of the plastic processing industry.   Choose Hengde, Choose Perfect Mold Temperature Controller!

The air cooled screw chiller, a critical component in the refrigeration industry, stands out for its unique design and advanced technology. The air cooled screw chiller offers significant advantages in industrial production and commercial sectors. Below are the key features of the air-cooled screw chiller.   1. High-Efficiency Cooling Equipped with a screw compressor, the air cooled screw chiller uses a rotor structure that enables the refrigerant gas to be compressed efficiently and smoothly. It has a large compression ratio and a broad range of cooling capacity, making it suitable for medium to large-scale cooling needs. The screw chiller can quickly and steadily provide low-temperature cooling, meeting the requirements of various processes and spaces. Hengde has optimized the design of its screw compressors, choosing imported semi-hermetic twin-screw compressors. Compared to traditional rotary compressors, these offer high efficiency, quiet operation, simple operation, and long service life.    2. Air-Cooled Heat Exchange, No Water Source Required Unlike water cooled screw chillers, air cooled screw chillers use air as the heat exchange medium. A fan drives the airflow through the condenser, enabling the refrigerant to exchange heat with the external air. This feature eliminates the need for a complex cooling water system, making installation and use more convenient, especially in areas where water is scarce or where it is difficult to install water cooling pipes, such as remote industrial plants or commercial buildings in water-deficient regions. Hengde has innovated the design of the air ducts, employing high-efficiency, low-noise fans and optimized heat exchange fins, ensuring effective heat dissipation while reducing noise, thus providing users with a quieter and more comfortable environment.   3. Easy Installation With a compact overall structure and small footprint, the air-cooled screw chiller doesn’t require specialized cooling towers, water pumps, or water piping systems. Once the unit arrives at the site, it only needs simple positioning and electrical connections before being quickly put into operation. This greatly reduces installation time, costs, and engineering complexity. Hengde’s air-cooled screw chillers undergo strict pre-commissioning before leaving the factory to ensure the reliability and stability of all components. The company also provides detailed installation manuals and professional technical support, making it easy even for first-time users to install and start the unit.   4. Stable and Reliable Operation The unit uses internationally renowned refrigeration components to ensure quality and operational stability. The evaporator and condenser are made with the latest high-efficiency spiral heat exchange copper tubes, which have a high heat transfer coefficient, ensuring excellent cooling performance. The air-cooled chiller is controlled by a microcomputer programmable controller, and its compressor features a multi-stage energy adjustment system that precisely controls the matching of cooling capacity and load in real-time.   5. Convenient Maintenance The components of the air-cooled screw chiller are logically arranged, making them easy for maintenance personnel to access and operate. Major components, such as the compressor, condenser, and evaporator, have independent service spaces, making routine inspections, cleaning, and maintenance easier. Additionally, the intelligent control system can send fault alerts, helping maintenance personnel quickly identify and resolve issues, reducing maintenance difficulty and costs. Hengde's screw chillers feature independent refrigeration circuits that can be maintained and repaired separately without affecting the operation of the entire unit. The professional after-sales service team is always ready to respond to maintenance needs, ensuring the unit operates at its best.   6. Energy-Efficient and Environmentally Friendly With continuous technological advancements, modern air-cooled screw chillers incorporate high-efficiency heat exchangers and energy-saving compressors, improving energy utilization and reducing energy consumption. Their air-cooled heat exchange system also avoids environmental pollution caused by cooling water discharge, aligning with current trends in energy conservation and environmental protection. Hengde actively responds to national energy-saving and environmental protection policies by exploring and applying new energy-efficient materials and technologies during product development. As a result, Hengde’s air-cooled screw chillers achieve industry-leading energy efficiency, helping customers reduce operational costs while contributing positively to environmental conservation.   With features such as high-efficiency cooling, easy installation, stable operation, convenient maintenance, and energy efficiency, the air-cooled screw chiller is an ideal choice for refrigeration needs across various industries. Hengde, known for its technological innovation, product quality, and exceptional after-sales service, has become a trusted choice for customers when selecting air-cooled screw chillers. The company provides reliable cooling solutions that support production and everyday life across diverse sectors.   Choose Hengde, Choose Perfect Air Cooled Screw Chillers!

Cast film calendering mold temperature controller is also called cast film calendering oil heater and cast film calendering electric heating oil furnace. It is a special mold temperature controller for cast film plastic thermoforming. Nowadays, in the process of temperature-controlled cast film forming, more and more customers tend to choose mold temperature controllers.   As a consumable part of the mold temperature controller, the heating tube is used to heat the heat transfer oil to ensure that the heat transfer oil can be heated to the preset temperature within a unit time. The selection of heating tubes mainly considers its power. The greater the heating power, the faster the heating speed. Of course, the higher the heating power, the better. The higher the heating power, the larger the specifications of cables and electrical components are required, which increases the cost of the mold temperature controller.   How to check whether the heating tube of the cast film calendering mold temperature controller is burned out? Since the mold temperature controller uses electric heating tubes, if there is a problem with the quality of the heating tubes, or the mold temperature controller manufacturer's design is unreasonable, the heating tubes will burn out and the mold temperature controller will not be able to heat. For the burnout of the mold temperature controller heating tube, we can use a multimeter to detect the resistance value and current value. If the data is abnormal, it is possible that the mold temperature controller heating tube is burnt out and needs to be replaced.   If the cast film calendering mold temperature controller heating tube is burnt out, what should we do at this time? The following are the steps and suggestions for solving the problem of heating tube burnout: 1. Shut down and cut off the power Immediately stop the equipment operation and disconnect the power supply to ensure safe operation. Turn off the heating and cooling system of the mold temperature controller to prevent further damage.   2. Check the cause of the burnout of the heating tube For the water mold temperature controller, it may be due to insufficient water inlet pressure and insufficient external water entering, causing the water-type mold temperature controller to be short of water. At this time, in order to protect the heating tube and the circulation pump, the mold temperature controller will alarm. Another reason may be that the pressure controller fails and cannot detect the system pressure normally, or a false alarm occurs. At this time, it is necessary to measure the current signal of the pressure controller.   3. Replace the heating tube Choose a suitable heating tube: According to the model and specifications of the mold temperature controller, choose a heating tube with the same power, size and material. Ensure that the temperature range and corrosion resistance of the heating tube meet the process requirements. Install a new heating tube: Install the heating tube correctly according to the equipment manual or the guidance of professionals. Ensure that the wiring of the heating tube is firm to avoid poor contact or short circuit. Test operation: After replacement, first perform a no-load test to check whether the heating tube is working properly. Gradually increase the temperature and observe whether the temperature control is stable.   The heating tubes of the cast film forming mold temperature controller equipped by Hengde for each customer are of high quality. Customers do not need to worry about their quality during use. If you buy a mold temperature controller from other manufacturers, remember to pay attention to the quality of the heating tube.   4. Check and repair other related components Check the temperature control system: confirm whether the temperature sensor, controller and relay are working properly. Calibrate or replace the temperature control element if necessary. Check the circulation system: ensure that the heat transfer medium is sufficient and the circulation pump is operating normally. Clean the filter or pipe to avoid blockage. Check the power supply and circuit: check whether the voltage is stable and the wiring is firm. Install a voltage stabilizer or replace damaged electrical components if necessary.   5. Preventive measures In order to avoid the heating tube from burning out again, the following preventive measures can be taken: Regular maintenance: Regularly check and clean the equipment pipeline. According to the usage, regularly clean the pipeline scale, carbon deposits, and impurities to avoid scale and carbon deposits blocking the pipeline and causing the heating tube to burn out, thereby affecting the service life of the heating tube. Monitoring operating parameters: Real-time monitoring of the temperature and current of the heating tube, and timely handling of abnormalities. Use high-quality heating tubes: Choose high-temperature and corrosion-resistant high-quality heating tubes to extend the service life. Optimize process parameters: Avoid long-term overload operation and set the heating temperature and time reasonably.   6. Seek professional support If the problem is complicated or cannot be solved by yourself, it is recommended to contact the equipment manufacturer or professional maintenance personnel for inspection and maintenance to ensure the safe and reliable operation of the equipment.   Through the above steps, the problem of burnout of the heating tube of the cast film calendering mold temperature controller can be effectively solved, and preventive measures can be taken to reduce the occurrence of similar failures and ensure the continuity of production and the stability of product quality. Hengde Company escorts your cast film calendering mold temperature controller.   Choose Hengde，Choose Perfect Mold Temperature Controller！

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!

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！

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!

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!