Hopper Dryer
The Insulated hopper dryer adopts a down-blowing design and uses stainless steel material hoppers to avoid contamination. With this design, they are also ideally suited for use with honeycomb dehumidifiers to dry engineering plastics. Equipped with “hot air blowing” and “cyclone exhaust” function and double insulation barrel, the temperature can reach 200℃。
- The microprocessor is used for accurate temperature control.
- Digital P.I.D. temperature control with LED display.
- Overheat protection to ensure reliable operation.
- Safety protective ladder and Floor stand are standard equipment for model SHD-1500U and above.
- Multiple optional accessories such as hot air recycler, magnetic base, and maintenance ladder, etc.
- Yushine Insulated hopper dryer can efficiently dry most standard hygroscopic plastics to ensure high-quality molding products. The concise structure makes it easy to mount on the IMM, and the insulated drying hopper can also be directly mounted on the floor with the floor stand. Besides, there are multiple optional accessories to meet different production demands, such as hot air recycler, magnetic base, and maintenance ladder, etc.SHD-80U and the models above have a hopper maintenance door for easy and effective maintenance.
- 80U and models above have hopper maintenance doors for ease and effective We offer various models of these dryers, all of which can be ordered online. For additional details, contact our team freely, as we’d be happy to help you.
- Yushine is a professional manufacturer and supplier of insulated hopper dryers with over 15 years of experience.
- 1-year warranty, Lifelong maintenance, and any feedback will respond in 24 hours.
- Yushine dryers should 100% trial run and follow the quality control system strictly.
Send us your requirement, we will offer you a quotation as soon as possible.
All material contact surfaces are made of stainless steel to eliminate material contamination. Equipped with Microcomputer control, adopted P.I.D temperature control and LCD touch screen and RS485 communication function as optional.
- Data Sheet
- Yushine Factory
| SHD-3000U | 4135x1798x1400 | 900 | 5.5 | 58 | 3000 | 4000x1482x1482 | 4400 | 6 | 6 |
| SHD-3500U | 4535x1798x1400 | 1010 | 7.5 | 64 | 3500 | 4800x1482x1482 | 4800 | 6 | 6 |
| SHD-4000U | 4180x2010x1600 | 1160 | 7.5 | 64 | 4000 | 4550x1680x1680 | 4635 | 8 | 8 |
| SHD-5000U | 4775x2010x1600 | 1390 | 11 | 80 | 5000 | 5150x1680x1680 | 5235 | 8 | 8 |
Yushine Leading Hopper Dryer Manufacturer
Yushine is a professional enterprise of the domestic brand in plastic & rubber auxiliary machinery fields like Insulated hopper dryers. We have many project cases with large-scale companies such as TTI, PHILIPS, Delonghi, Dorel Juvenile, and so on.
Since Yushine has over 15 years of experience in this industry. We assure you that all of our Insulated hopper dryer products are tested and certified in production.
- Yushine has passed the ISO9001 international quality system and most of our products have passed CE certification.
- All the machines are a 1-year warranty, and any feedback will respond in 24 hours.
- Strong abilities in developing and designing new machines that have passed patents for easy operating.
- Short-time delivery and many products are in stock.
- Yushine Concepts of “quality first, customers first, the credit first”.
The Hopper Dryer FAQ Guide is a free, easy-to-read guide with everything you need to dry various plastic materials using your Hopper Dryer successfully.
The guide contains information on hopper dryers, parts of the hopper dryers, types of hopper dryers, technical specifications, the kind of plastic materials you can dry with your hopper dryer, and much more.
This guide will offer you practical information about hopper dryers that you will not find anywhere.
A hopper dryer, also known as a plastic dryer, is a drying machine commonly used in plastic extrusion and blow molding to rapidly and efficiently remove moisture from plastic pellets, flakes, granules, and powder.
The moisture content of the pellets is referred to as their “raw moisture content.”
The raw moisture content will vary from material to material, with common values being 4-6% for PVC pellets, 6-10% for ABS pellets, and 10-15% for PS (Polystyrene) pellets.
The hopper dryer firstly heats the ambient air through a heater coil, and then passes through a plastic resin hopper. So the moisture from the resin pellets is dried up and brought out of the hopper.
The Hopper Dryer plays a crucial role in the injection molding process. It is used to remove the moisture from different plastic materials injected into the molding machine. The drying process takes place before the parts are transferred to an oven.
The Hopper Drier is used to reduce the moisture content of extruded plastic pellets before they are processed into finished parts. This process provides an uninterrupted flow of raw materials for all extrusion processes.
Yushine company offers 2 types of hopper dryers:
Hot Air Hopper Dryer
A hot air hopper dryer is used to dry plastic granules by allowing the hot air to pass through the material placed within a hopper. In this dryer, the temperature can reach up to 1800C. You can use it to remove non-hygroscopic materials, including ABS, PS, and PP.
Insulated Hopper Dryer
An insulated hopper dryer is a device used to dry materials containing moisture. The stainless-steel hopper is double insulated. This increases the efficiency and effectiveness of the drying process.
No heat losses are associated with the insulated hopper dryer. The temperature in this type of hopper dryer reaches up to 2000C.
Various parts, when combined, make up your hopper dryer. Without a single of these parts, your hopper dryer will be unable to perform its function. These components include:
Air Filter
Air filters are one of the most important components integral to the smooth operation of hopper dryers. It helps maintain a better airflow which indirectly prevents any accumulation of lint and dust inside it. This elongates the life of the hopper dryer.
Blower
The primary benefit of a hopper dryer is the circulation of dry, hot air into the hopper. These blowers consist of scroll compressors and fan motors to effectively circulate the air. This circulation causes moisture to evaporate, so less water remains inside the grain and generates a higher quality product at the end of drying.
Heater
The heater is the essential component of the hopper dryer. It contains a programmable timer, power density, and excess temperature control. The main role of the heater is to raise the temperature of the air when it passes through it. You can specify the temperature or set its value. This will help you speed up the drying while also giving you control to prevent excessive temperatures.
There are many industries that need hopper dryers. Below is a list of main applications :
The plastic industry uses this product to remove the moisture from material so that the end products are of high quality. The pharmaceutical industry utilizes hopper dryers to produce high-quality drips, syringes, oxygen masks, and much more.
The food industry uses a hopper dryer to completely dry out recyclable plastic products, including disposable glass, tea mugs, plates or spoons, and much more.
Different beverage products, including recyclable glasses and beverage containers, also utilize hopper dryers in their manufacturing process. You cannot ignore the importance of hopper dryers in these industries.
Multiple materials you can dry using your hopper dryer. Some of the main materials include:
ABS (Acrylonitrile Butadiene Styrene)
ABS is a synthetic polymer widely used in manufacturing to be molded into almost any shape. It’s fairly easy to develop and yet very durable. The versatility that comes from this unique property makes it the most commonly used plastic and one of the most widely used manufactured materials.
PP (Polypropylene)
Polypropylene is a thermoplastic polymer produced from the polymerization of propylene. It is used in various applications, including films, bottle caps, packaging, injection molded parts, and lids for food and beverage cans.
PS (Polystyrene)
PS (Polystyrene) or poly(styrene) is a synthetic aromatic polymer made from monomer styrene. It is one of the most widely used plastics. PS is an alternative to most plastic materials when making a wide range of products like Electronic items, Furniture products, Shoes, and toys.
The air filter is an important part of the hopper dryer. It is used to purify the air of bacteria and dust particles to achieve a better drying effect. Air enters the hopper through the grating, leaving most foreign matters stuck in the filter.
It prevents these contaminants from harming your hopper dryer and the material you will dry with it. In this way, the material you obtain from the hopper is completely purified and cleaner.
Without the Hopper Air Filter, the fumes from the heating process would be difficult to control, and it would not be possible to achieve an efficient, pollutant-free drying environment.
The air filter is an important part of the hopper dryer. It is used to purify the air of bacteria and dust particles to achieve a better drying effect. Air enters the hopper through the grating, leaving most foreign matters stuck in the filter.
It prevents these contaminants from harming your hopper dryer and the material you will dry with it. In this way, the material you obtain from the hopper is completely purified and cleaner.
Without the Hopper Air Filter, the fumes from the heating process would be difficult to control, and it would not be possible to achieve an efficient, pollutant-free drying environment.