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This paddy corn maize wheat dryer machine provides a reliable and energy-efficient solution for drying multiple types of grains. It is specifically designed for use in grain drying processing plants, ensuring effective moisture reduction for paddy rice, maize, corn, and wheat.
Utilizing an intermittent low-temperature drying cycle, this machine preserves grain integrity and minimizes the risk of cracking or quality degradation. It is ideal for producing safe, storable grain with consistent moisture levels.
Built with a compact and user-friendly structure, the dryer supports multiple fuel types-including electric, diesel, or biomass-making it highly adaptable to various agricultural and industrial environments.
Widely applied in grain processing plants, farms, and storage silos, this grain dryer enhances grain preservation, increases productivity, and ensures long-term storage quality.
This advanced grain dryer machine is specially designed for efficient drying of paddy, corn, maize, and wheat in large-scale grain processing plants. Utilizing hot air as the primary heating medium ensures uniform, safe, and energy-efficient drying to maintain grain quality and extend shelf life.
Working Principle:
The dryer features a robust internal design, including an air inlet vent and multiple angular ventilation boxes filled with grains. During operation, grains flow continuously from top to bottom within these ventilation chambers.
Hot air is introduced through the air inlet vent and passes downward through the grain layer, moving concurrently with the flowing grains-a process known as "mixed flow" drying. The exhaust air, now carrying evaporated moisture, exits via the exhaust vent.
As hot air passes through the grain layer, heat and moisture are exchanged: thermal energy raises the grain temperature, which in turn releases moisture into the air. This moisture-laden exhaust air is then safely discharged.
Post drying, grains enter the tempering section, where the temperature and moisture between grain surfaces and inner layers equalize, ensuring consistent moisture content throughout.
Finally, grains pass through the cooling section to reduce their temperature to a safe level for long-term storage, before being discharged through the outlet.
Key Benefits:
Suitable for drying a variety of grains such as paddy, corn, maize, and wheat
Mixed flow drying guarantees uniform and efficient moisture removal
Tempering ensures consistent grain quality and prevents cracking
The cooling section prepares grains for safe storage and transport
Energy-saving and environmentally friendly design with low noise operation
Ideal for grain processing plants aiming to improve drying efficiency and grain quality, this dryer machine is a reliable choice for modern agricultural operations.
| Capacity (T/D) | 100 | 150 | 200 | 300 | 400 | 500 | 600 |
| Moisture Expected Lowed Down (%) | 3~5 | ||||||
| Heated Media | Cleaning Air | ||||||
| Heated Air Tempereture
(ºC) |
<65 | ||||||
| Maximum Heating Temperature of Grain (ºC) | 35 | ||||||
| Drying Evenness (%) | >98 | ||||||
| Unit Heat Consumption
(kj/kgH2O) |
5450~6700 | ||||||
| Coal Consumption
(Standard) (kg/h) |
110~180 | 160~260 | 230~350 | 340~520 | 450~680 | 560~850 | 700~1000 |
Technical Advantages of Industrial Grain Drying Systems
Wide Moisture Adjustment Range
Engineered to reduce moisture by up to 25% per drying cycle, this system is ideal for preprocessing high-moisture grains, ensuring effective drying without quality loss.
Continuous, Automated Operation
Supports manual or PLC-controlled modes for stable, reliable performance with minimal manual intervention. This automation reduces civil engineering costs by 30-50%, streamlining installation and operation.
Multi-Crop Compatibility
Adjustable temperature and pressure settings enable drying of various grains such as rice, corn, wheat, and more, providing excellent operational flexibility across diverse crops.
Energy Recovery & Efficiency
Incorporates advanced waste heat recycling technology that lowers energy consumption by 15-25% during maize drying, maximizing resource efficiency and reducing operational costs.
Uniform Drying & Post-Processing Quality
Gradual moisture removal combined with multi-stage slow cooling delivers grains with consistent moisture content, achieving a directly storable quality level of ≤13% final moisture.
Eco-Friendly & Energy-Saving Design
A hybrid system integrating low-temperature dehumidification and heat pump technologies achieves an energy intensity of only 0.2-0.3 kW·h/kg, ensuring zero pollution emissions and sustainable operation.
Flexible Thermal Energy Sources
Compatible with multiple heat sources, including gas, steam, coal, and biomass fuels, facilitating a smooth transition toward clean energy solutions in agricultural processing.
1. Company Overview
Shijiazhuang Hongdefa Machinery Co., Ltd. is located in Wumashan Industrial Area, Zanhuang County, Shijiazhuang City, just a 4-hour drive from Beijing.
We are a professional manufacturer and exporter of grain dryers, with a strong industry presence since 1982. With decades of experience, we have earned a solid reputation for quality, reliability, and international service.Hongdefa has a professional team of around 100 skilled workers, a 30,000 m2 modern manufacturing base, and a 1,000 m2 research and development center.
Our advanced facilities and experienced team ensure high-quality production and continuous innovation in grain milling technology.
Our engineering team includes over 30 highly qualified engineers, each with more than 15 years of experience in flour mill design, manufacturing, and on-site installation.
Our sales managers also bring over 10 years of international sales experience. They have visited more than 60 countries, meeting clients face-to-face, providing professional consultation, and helping establish overseas offices to better serve our global customers.
We provide lifelong after-sales support for all our machines.
Currently, we have:
Warehouses in Zambia and Kenya
A local office in Ethiopia
Authorized agents in DR Congo, Australia, Yemen, Burkina Faso, and other countries
These overseas service points enable us to offer quick response, local spare parts supply, and technical support, ensuring your production runs smoothly at all times
All our machines are manufactured to the highest quality standards and have passed international certifications, including ISO, CE, BV, SGS, and COC.
These certifications ensure our equipment meets global requirements for safety, reliability, and performance.
5. Loading & Shipping the Machines
The machine is first wrapped with protective film inside and waterproof plastic film outside to prevent moisture and dust.
For orders shipped in less than a full container, wooden crate packing is applied to ensure safety during transport.
Inside the container, the machine will be securely fastened with steel ropes to avoid any movement or damage.
All machines are carefully inspected and reinforced to ensure they arrive at the destination in perfect working condition.
Q: Will you send engineers to install the dryer machine?
A: Yes. We currently have over 30 engineers stationed in various countries, including Zambia, Uganda, Zimbabwe, Malawi, Angola, the DRC, Ethiopia, and Nigeria. We can deploy an engineer to your location for on-site installation guidance.
Q: Can you show how the grain dryer machine works?
A: Certainly. You are welcome to visit our factory to observe the production line in operation, or we can arrange a visit to a local operational machine in your country for a live demonstration of its functionality.
Q: How about the after-sales service?
A: Our after-sales service is comprehensive. We provide on-site support, including installation, commissioning, and operator training through our dedicated team of engineers. Additionally, we have branch offices in Addis Ababa (Ethiopia), Lusaka (Zambia), and Ruiru (Kenya) to ensure prompt local assistance.
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