Home / Auxiliary equipment: Drying and Dehumidifying System

Auxiliary equipment: Drying and Dehumidifying System

2024/02/09 By 兰兹

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The complete injection molding process usually includes injection molding machine robots, injection molding machines, and auxiliary equipment. The drying and dehumidifying system is a type of auxiliary equipment and is mainly used for drying and transporting injection molding raw materials. This guide will introduce you to the detailed features of drying and dehumidification systems.

Drying and Dehumidifying System usually include integrated

Drying and dehumidification functions and the two-stage feeding merge the three essential functions into a whole.

Dehumidification is a critical point in injection molding, which is the removal of moisture from the injection molding raw material because excessive humidity can damage the quality of the plastic material, causing defects in the final product and affecting its structural integrity and surface finish. Its drying barrel adopts full mirror stainless steel double-layer insulation and down-blowing air duct design, which can improve drying efficiency and achieve more consistent and reliable production results. It adopts a two-stage feeding structure and is equipped with a cut-off valve to ensure that there is no residual raw material in the material pipe, avoids the moisture resurgence of raw materials, improves the accuracy and control of material transportation, and optimizes the overall efficiency of the production cycle. Precise material transport results in consistent product quality and reduced waste.

Low power consumption of drying and Dehumidifying System

I designed the drying and dehumidification system with energy efficiency in mind. These systems use our self-developed control system to minimize power usage (power consumption is 0.6 kilowatt hours per hour, compared to 2.5 kilowatt hours for traditional models), which helps save costs using energy-saving components and processes. Utilizing technologies such as heat recovery improves efficiency by recovering energy from the drying process to supplement heating needs. Additionally, proactive regulation by intelligent sensors and automation ensures power usage when necessary.

Adopt all stainless steel feeding systems.

The stainless steel construction of the upper and lower feeding systems offers multiple advantages. First, it ensures corrosion resistance and prevents equipment from rusting. More importantly, using stainless steel in the feeding system solves the critical problem of material contamination. Plastics are susceptible to impurities, and any foreign particles introduced during the feeding process can compromise the integrity of the final product. The stainless steel surface is smooth, non-reactive, and easy to clean, minimizing the risk of contaminants adhering to or penetrating the plastic material. Avoiding material contamination is particularly important for industries such as medical and automotive manufacturing.

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Down-blowing air duct design

The double-layer insulated drying hopper of the drying and dehumidification system adopts a down-blowing air duct design, which can optimize the distribution of hot air in the drying hopper. Introducing hot air from the bottom ensures that the heat is evenly distributed among the plastic pellets in the system. This prevents the formation of temperature gradients that could lead to uneven product quality due to over- or under-drying certain areas. One of the main advantages of this design is its ability to prevent heat energy loss during the drying process, effectively guiding hot air upward through the plastic pellets reducing the spillage of heat energy at the top of the hopper, thereby improving drying efficiency.

Use intelligent fault alarms and brilliant time reservations

Intelligent fault alerts for drying and dehumidification systems enable proactive maintenance and problem resolution, using sensors and diagnostics to monitor the performance of drying and dehumidification components continuously. In the event of any deviation from optimal operating conditions or potential failure, the device triggers automatic alarms. This reduces downtime and prevents potential damage to the machine. In addition, the operator can preset when the drying and dehumidification processes start or end. This scheduling feature enables efficient use of energy resources by aligning equipment operations with production schedules.


It is precisely because our customers pointed out to me that traditional drying and dehumidification systems are not efficient enough and are prone to contamination, so we independently developed a drying and dehumidification system that integrates three functions. This is an innovative and efficient way to improve our injection molding efficiency and product quality integrity.

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