Hopper Dryer: An Important Equipment to Improve the Efficiency and Quality of Plastic Processing.

Author: Site Editor     Publish Time: 2023-05-09      Origin: Site

The plastic processing industry is an indispensable part of modern industrial production, widely used in various fields such as automotive, electronics, medical, packaging, etc. However, the plastic processing process faces many challenges, and one of the important challenges is dealing with wet raw materials. Moist plastic raw materials can cause problems such as decreased product quality, machine failure, and low production efficiency during processing. Therefore, to solve this problem, hopper dryer (also known as plastic dryer, drying hopper, material dryer, dehumidifying dryer, etc.) have emerged as essential equipment to improve processing efficiency and quality. Xiecheng is a professional hopper dryer manufacturer, providing various types of hopper dryers to meet the needs of different customers.

Hopper Dryer

1. What is a Hopper Dryer?

The principle and usage of hopper dryers.

A hopper dryer is a mechanical equipment that uses thermal energy to reduce the moisture content of materials and is used for drying operations on objects. The hopper dryer uses electric heating to vaporize and discharge the moisture and humidity in the material to obtain solid materials with a specified moisture content. The purpose of drying is for the needs of material use or further processing.

The application scope of hopper dryers.

Hopper dryers can be used for drying various types of plastic raw materials and recycled materials, such as commonly used ABS, PA, PBT, PC, PE, PET, PMMA, PP, POM, PPS, PS, PU, PVC, etc. They are widely used in industries such as injection molding, extrusion, blow molding, etc.

The function of hopper dryers.

•   To improve the quality and performance of plastic processing: through drying treatment, the moisture content in plastic can be effectively reduced, avoiding problems such as bubbles, defects, etc. during the processing, thereby improving the quality and performance of plastic products.

•   To improve the efficiency of plastic processing: high humidity in plastic can cause expansion and contraction during the processing, thereby affecting production efficiency. By using a hopper dryer, this situation can be reduced, and the efficiency of plastic processing can be improved.

2. The Application of Hopper Dryers.

The application of hopper dryers in injection molding process.

In the injection molding process, hopper dryers are usually used to dry granular plastic raw materials, ensuring that the plastic is sufficiently dry for processing. If the plastic contains too much moisture, steam or bubbles may appear during the injection molding process, leading to uneven or poor surface quality of the product. Therefore, using a hopper dryer in the injection molding process can improve the surface quality, dimensional accuracy, and production efficiency of the product.

The application of hopper dryer in blow molding process.

During the blow molding process, the main function of the hopper dryer is to remove moisture from the raw materials, thus avoiding the formation of bubbles and pores during the blow molding process, and improving the quality and reliability of the products. This is particularly important for industries with higher requirements for product quality, such as medical and food packaging.

The application of hopper dryer in extrusion process.

During the extrusion process, the use of dry plastic raw materials can improve the flow and uniformity of the plastic, reduce the generation of bubbles and voids, and thereby improve the quality of the product. At the same time, dry plastic raw materials can increase the throughput of the extruder and improve production efficiency.

3. How to Choose and Operate a Hopper Dryer.

How to choose a suitable hopper dryer.

There are many types of hopper dryers, such as standard hopper dryers, high-efficiency and energy-saving hopper dryers, euro-hopper dryers, honeycomb dehumidifier, 2 in 1 honeycomb dehumidifier, etc. When choosing a hopper dryer, it is necessary to select the appropriate model based on parameters such as the required drying temperature, drying time, and drying capacity. At the same time, it is also necessary to consider factors such as the type of plastic, humidity, and viscosity, and select the appropriate drying method and equipment.

How to operate a hopper dryer correctly.

Operating a hopper dryer correctly can ensure its normal operation and extend its service life. Before operation, it is necessary to inspect and maintain the equipment and ensure that parameters such as temperature and time are in compliance with requirements. During use, it is also important to regularly clean dust and impurities from the interior and exterior of the equipment, and to promptly replace maintenance parts as needed.

4. The Future Development of Hopper Dryers.

Trends and forecasts for the hopper dryer market.

With increasing concern for environmental protection and sustainable development, the hopper dryer market is gradually shifting towards high efficiency, energy saving, and low emission. At the same time, with the rapid development of the plastic industry, the demand for hopper dryers in the market will also continue to increase.

The impact of new technologies and innovations on hopper dryers.

New technologies and innovations will have a significant impact on the future development of hopper dryers. For example, advanced intelligent control technology and sensor technology will make hopper dryers more intelligent and automated, improving production efficiency and quality. In addition, the development and application of new materials will also bring new opportunities for the future development of hopper dryers.

Future development trends and opportunities for hopper dryers.

With the constant changes and innovations in the market and technology, the future development trends and opportunities of hopper dryers will also continue to change. In the future, hopper dryers will become increasingly intelligent, automated, energy-saving and environmentally friendly. At the same time, they will also face more application areas and market opportunities, such as medical equipment, automobile manufacturing, and other fields. Therefore, companies need to constantly innovate and improve product quality and technical level to adapt to the changes and demands of the market.

The role and importance of hopper dryers in plastic processing cannot be ignored. It can effectively remove moisture from plastics, improve processing efficiency and product quality, and play a crucial role in the development of the plastic processing industry. As a professional company engaged in the manufacture of plastic processing equipment, Xiecheng has many years of experience and technical accumulation in the field of dryers. We provide customers with high-quality dryer equipment and excellent after-sales service, making their production more efficient, stable and reliable.


  • XIECHENG at Plast Eurasia Istanbul 2023
    Xiecheng│Plast Eurasia Istanbul 2023 The 32nd Istanbul Plastic Industry Rubber and Plastics Exhibition, held at the Tüyap Exhibition Center in Istanbul from November 22 to November 25. The Istanbul Plastic Industry Rubber and Plastics Exhibition (Plast Eurasia Istanbul 2023) in Turkey, which started in 1994, is an annual event that influences the global plastic industry. It serves as a crucial annual exhibition, guiding the development and progress of the global plastic industry. It is also an important trade and frontier technology exchange platform for global plastic industry equipment and technology.
  • XIECHENG at Plastics and Rubber Indonesia 2023
    November 18, 2023— The Plastics and Rubber Indonesia 2023 exhibition concluded successfully at the Jakarta International Expo, Kemayoran, after a four-day extravaganza that attracted professionals from around the world. The exhibition aimed to introduce new and upgraded machinery and solutions to the Indonesian rubber and plastics industry.
  • XIECHENG at VietnamPlas 2023
    On September 20-22, 2022, the 2nd China Anhui International Plastics Industry Expo 2022 will be held in Hefei Binhu International Convention and Exhibition Center. Xiecheng Machinery brought a variety of Rubber and Plastic Molding Automation Auxiliary Equipment products to the Anhui Plastics Expo. C
Leave a message
Global Provider of One-Stop Automation Equipment and Integrated Solution
  • Address
    No. 17, Huizhi Road, Da'ze Town, Xinhui District, Jiangmen City, Guangdong, China

  • Email

  • Phone