Dehumidification and drying of heat-sensitive, powdered, and granular materials under vacuum conditions.
Lossless Mixing
Low-Temperature Drying
Energy-Efficient and High-Performance
Sealed and Clean
The SZG Double-Cone Rotary Vacuum Dryer is suitable for the dehumidification and drying of heat-sensitive, powdered, and granular materials in industries such as pharmaceuticals, chemicals, food, and pesticides.
The double-cone rotary vacuum dryer consists of a double-cone jacketed tank. Steam or hot water can be introduced into the jacket to heat the inner tank; heat is transferred from the inner tank to the wet material, causing the solvent in the material to vaporize. A low-speed motor drives the tank to rotate, causing the material to continuously move up and down and from the inside to the outside, thereby exposing new surfaces to the heat. At the same time, solvent vapor is continuously extracted through vacuum pipes, accelerating the drying rate of the material and ultimately achieving uniform drying.
Fully enclosed drying with no material loss; suitable for heat-sensitive, powdered, and granular materials.
It is primarily used for dehumidifying and drying heat-sensitive, powdered, and granular materials in industries such as pharmaceuticals, chemicals, food, and pesticides.
Chemical Industry
Pharmaceutical Industry
Food Industry
Pesticide Industry
Using either a gear drive or a sprocket/chain drive, a low-speed motor rotates the tank, causing the material to continuously move up and down and flip from the inside out, thereby exposing new surfaces to heat.
The system uses a double-conical jacketed tank; steam or hot water can be circulated through the jacket to heat the inner tank, and the heat is transferred from the inner tank to the wet material, causing the solvent in the wet material to vaporize.
There are two types: rotary joints and mechanical seals. Mechanical seals are typically used, and a backflow prevention check valve (patented) is available for the vacuum side. This ensures a sealed, dry environment, preventing product leakage and contamination.
① Standard butterfly valve; ② Butterfly valve + quick-connect blind flange; ③ Worm gear butterfly valve (PTFE-lined)
Depending on specific requirements, the unit can be equipped with explosion-proof automatic control devices, explosion-proof motors, and transformers.
Custom Materials
Surface Finishes
Drive Type
| Model | Total Volume (L) | Filling Volume (L) | Max. Charging Capacity (kg) | Motor Power (kW) | Drying Capacity (kg/h) | Rated Speed (r/min) | Working Pressure Inside Vessel (MPa) | Jacket Working Pressure (MPa) | Overall Dimension (L×W×H)(mm) | Machine Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|
| SZG-100 | 100 | 50%±10% | 36 | 1.1 | 2.1 | 6 | -0.09~-0.098 | 0.2 (Hot Water), 0.3 (Saturated Steam) | 1810×750×1800 | 500 |
| SZG-200 | 200 | 50%±10% | 72 | 1.5 | 3.7 | 6 | -0.09~-0.098 | 0.2 (Hot Water), 0.3 (Saturated Steam) | 2060×800×1850 | 800 |
| SZG-500 | 500 | 50%±10% | 180 | 2.2 | 6.7 | 6 | -0.09~-0.098 | 0.2 (Hot Water), 0.3 (Saturated Steam) | 2270×1000×2300 | 1300 |
| SZG-750 | 750 | 50%±10% | 270 | 3 | 10 | 6 | -0.09~-0.098 | 0.2 (Hot Water), 0.3 (Saturated Steam) | 2460×1000×2500 | 1500 |
| SZG-1000 | 1000 | 50%±10% | 360 | 4 | 12 | 6 | -0.09~-0.098 | 0.2 (Hot Water), 0.3 (Saturated Steam) | 2660×1200×2630 | 1700 |
| SZG-1200 | 1200 | 50%±10% | 430 | 5.5 | 14 | 6 | -0.09~-0.098 | 0.2 (Hot Water), 0.3 (Saturated Steam) | 2760×1300×2720 | 2000 |
| SZG-1500 | 1500 | 50%±10% | 540 | 5.5 | 15 | 6 | -0.09~-0.098 | 0.2 (Hot Water), 0.3 (Saturated Steam) | 2860×1300×2750 | 2200 |
| SZG-2000 | 2000 | 50%±10% | 720 | 5.5 | 17.5 | 6 | -0.09~-0.098 | 0.2 (Hot Water), 0.3 (Saturated Steam) | 2860×1400×3000 | 2500 |
| SZG-2500 | 2500 | 50%±10% | 900 | 7.5 | 18.8 | 6 | -0.09~-0.098 | 0.2 (Hot Water), 0.3 (Saturated Steam) | 3160×1500×3100 | 3000 |
| SZG-3000 | 3000 | 50%±10% | 1080 | 7.5 | 21 | 6 | -0.09~-0.098 | 0.2 (Hot Water), 0.3 (Saturated Steam) | 3260×1600×3400 | 3500 |
Note: Custom design and manufacturing are available according to users' special requirements, such as material, structure, specification and dimension.
