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  • How To Maintenance The Mold Temperature Controller? Dec 16, 2024
    Hengde mold temperature controllers are widely utilized in a diverse range of industries. Such industries encompass plastic & rubber manufacturing, the chemical field, electronic production, food & beverage, the wood board industry, die casting, printing, and many others.   How to maintain it? Hengde mold temperature controller maintenance is mainly divided into daily inspection and regular maintenance.   Daily Inspection: 1. Check the mold temperature controller housing and control panel to keep them clean and dry, and avoid using detergents containing acidic and alkaline substances to wipe stains. When wiping the inside with a rag, pay special attention not to damage the electrical parts. 2. Check whether each component is normal, such as checking whether the temperature display of the mold temperature controller is normal, checking whether the parameter setting of the controller has changed; whether there is leakage at the pipe connection, and check whether there is liquid dripping or moisture at the joint. Observe whether the oil pump, water pump and other running parts have abnormal noise or vibration. The sound should be stable and there is no obvious shaking during normal operation. Check whether the cable is damaged or worn, and replace it in time if necessary.   Regular Maintenance: Perform in-depth maintenance on the mold temperature controller every certain period of operation (according to the requirements of the equipment manual). The following is the maintenance time of each accessory: Item Maintenance Period Maintenance Solenoid valve 1 month (actual operation 600 hours)  Dismantling and cleaning Liquid level switch 1 month (actual operation 600 hours)  Dismantling and cleaning Mold connection hose 2 month (actual operation 1200 hours) Dismantling and cleaning Noise / strange smell / heat Every day No Noise / Vibration Loose terminals 3 months Inspect and tighten Dust and garbage in control cabinet 1 month Clean Electromagnetic contactor (Pump)  3 years Replace Liquid level display tube Every day Check for proper amount Heat transfer oil 6 months Replace PC board  3 years Replace Pump 1 year(Every day)  Confirm noise Pipeline 1 month  Check and confirm no oil leakage   Special Precautions: 1. It is best to clean the equipment return filter once a month. After the test machine is completed, it is best to clean it several times before normal use. 2. Tighten the screws of all electrical parts of the equipment once a month (especially the contactor, because the long-term operation of the mold temperature controller may cause the screws to loosen); 3. Before shutting down, it is recommended to lower the temperature of the water mold temperature controller to below 40℃ and the temperature of the oil mold temperature controller to below 80℃ before shutting down, which can extend the service life of the pump and heating tube. 4. If the customer's equipment pipeline is higher than the oil tank of the Hengde mold temperature controller, the oil tank can be raised, or the inlet and outlet valves can be turned off first, and then shut down to prevent backflow when the circulation pump is not working.   Choose Hengde, Choose Perfect Mold Temperature Controllers!
  • Why Temperature Control Unit Is Crucial for Heat Transfer Rolls? Oct 22, 2025
    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?”

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