Hot air circulating drying machine
Model：RXH Series Hot Air Circulating Drier
The Hot Air Circulating Drying Machine, also widely known as Hot Air Circulation Oven, Circulating Hot Air Dryer, Hot Air Recirculating Dryer and Recirculating Hot Air Oven, is a high-efficiency industrial drying and dehumidifying equipment. It includes multiple professional models such as Industrial Hot Air Circulating Dryer, Pharmaceutical Hot Air Circulating Dryer, Herb Medicine Drying Oven, Food Dehydration Circulation Dryer, Fruit Vegetable Hot Air Dryer and Chemical Powder Drying Oven. Also named thermal circulation dryer, air circulation dryer and circulating drier machine, this universal drying equipment is widely adopted in pharmaceutical, chemical, food, light industry and heavy industry fields for material heating, drying and dehumidification.
It is suitable for drying a wide range of materials, including pharmaceutical raw materials, crude medicines, Chinese herbal slices, powder agents, granules, granules medicaments, pills, packaging bottles, pigments, dyes, dehydrated vegetables, various food products, plastic resins, electrical components, baking paint and other industrial materials, meeting diversified batch drying demands of different industries.
- Fast Delivery
- Quality Assurance
- 24/7 Customer Service
Working Principle
1. Heating SystemThe oven is equipped with built-in electric heating tubes or steam radiators. The ambient air passes through the heat source and is rapidly heated into high-temperature dry hot air, providing stable and continuous heat energy for material drying.
2. Forced Air Circulation System
Different from traditional natural drying ovens, this machine adopts a forced convection circulation design. The top or side circulating fan operates continuously to drive hot air to evenly pass through each layer of material trays inside the chamber. The fully circulated hot air makes full contact with wet materials and efficiently takes away surface moisture, realizing uniform drying.
3. Closed Air Duct Circulation System
After heat exchange and temperature reduction, the return air flows back to the heating area through the independent air duct for reheating, forming a fully closed hot air circulation loop. The cyclic utilization of heat energy greatly reduces heat loss, lowers overall energy consumption and improves thermal efficiency.
4. Moisture Exhaust & Fresh Air Supplement System
The oven body is designed with adjustable moisture exhaust ports. When the internal air reaches moisture saturation, the humid and hot air is automatically discharged out of the chamber. Meanwhile, an appropriate amount of low-temperature fresh air is supplemented continuously, which effectively reduces internal humidity and accelerates the overall drying speed.
5. Constant Temperature Control System
Equipped with high-precision PID temperature control sensors, the system monitors the internal temperature in real time. It automatically starts and stops the heating source to maintain constant and stable temperature inside the oven. This intelligent control ensures uniform heating of all materials without local overheating, effectively protecting material quality.
Core Product Features
1. Forced Convection Drying: Adopts fan-driven forced hot air circulation instead of natural air drying, realizing faster drying speed and higher production efficiency.2. Uniform Internal Temperature: Optimized air duct circulation structure ensures even temperature distribution in every corner of the chamber, achieving consistent drying effect for all batch materials.
3. Energy-Saving & Efficient: Closed hot air recycling design reduces heat waste, featuring low energy consumption and high working efficiency.
4. Wide Application Range: Perfect for batch drying of pharmaceutical products, herbal slices, food ingredients, fruits and vegetables, chemical powders and various industrial materials.
5. Stable & Safe Operation: Intelligent constant temperature control avoids material damage caused by overheating, ensuring stable drying quality and safe long-term operation.
Technical Parameters
| Model | RXH-B-O | RXH-B-I | RXH-B-Ⅱ | RXH-B-Ⅲ | RXH-B-Ⅳ |
| Drying capacity | 60kg | 120kg | 240kg | 360kg | 480kg |
| Power | 0.45kw | 0.45kw | 0.9kw | 1.35kw | 1.8kw |
| Steam consumption | 10kg/h | 20kg/h | 45kg/h | 71kg/h | 90kg/h |
| Radiation area | 5m | 20m | 40m | 80m | 100m |
| Blast | 3450mh | 3450mh | 6900mh | 10350mh | 13800mh |
| Temperature deviation | ±2℃ | ±2℃ | ±2℃ | ±2℃ | ±2℃ |
| Baking disc | 24 | 48 | 96 | 144 | 192 |
| Baking cart | 1 | 2 | 4 | 6 | 8 |
| Overall dimension | 1400*1200*2300 mm |
2300*1200*2300 mm |
2300*2200*2300 mm |
2300*2200*2300 mm |
4460*3200*2000 mm |
