SZG series double cone rotary vacuum dryer is a new generation of drying equipment developed by our company on the basis of combining similar equipment technology. It is connected in two ways, namely belt or chain. Therefore, it operates stably. The special design ensures that the two axes achieve good concentricity.The material can be evenly and quickly dried under uninterrupted rotation.
SZG series double-conical rotary vacuum dryer, can be quickly speed-adjusted regulation and constant temperature control. This series of dryers provides a variety of parameters such as volume, power, and temperature range to choose from, and customers can choose the corresponding model according to the material characteristics and production needs.
- The material can be evenly and quickly dried under uninterrupted rotation.
- The material is heated by the heat source in the interlayer of the inner wall of the rotating cylinder. Under the action of gravity, the material is evenly contacted on the wall of the double cone. The vacuum cylinder cooperates with continuous air extraction and moisture removal to achieve the purpose of uniform drying and mixing.
- Mainly used in medicine, chemical, food, metallurgy, and other industries, suitable for heat-sensitive, easy to oxidize, crystals that are not allowed to be destroyed, solvents that need to be recovered, strong irritating or toxic materials.
- The heating temperature can be automatically controlled, and the data can be recorded and printed. And has a fault alarm function.
- The equipment has high operating stability, low noise, and generally has a service life of more than 20 years.
Model | SZG-100 | SZG-350 | SZG-500 | SZG-750 | SZG-1000 | SZG-1500 | SZG-2000 | SZG-3500 | SZG-4500 | SZG-5000 | |
Floor space | Length (mm) | 2160 | 2260 | 2350 | 2560 | 2860 | 3060 | 3260 | 3760 | 3960 | 4400 |
Width (mm) | 800 | 800 | 800 | 1000 | 1300 | 1300 | 1400 | 1800 | 2000 | 2500 | |
Rotary height (mm) | 1750 | 2100 | 2250 | 2490 | 2800 | 2940 | 2990 | 3490 | 4100 | 4200 | |
Weight (Kg) | 800 | 1100 | 1200 | 1500 | 2800 | 3300 | 3600 | 6400 | 7500 | 8600 | |
Container volume (L) | 100 | 350 | 500 | 750 | 1000 | 1500 | 2000 | 3500 | 4500 | 5000 | |
Loading capacity (L) | <= 50 | <= 175 | <= 250 | <= 375 | <= 500 | <= 750 | <=1000 | <=1750 | <=2250 | <=2500 | |
Stirring power (kw) | 0.75 | 1.1 | 1.5 | 2 | 3 | 3 | 4 | 5.5 | 7.5 | 11 | |
Heating area (m^2) | 1.16 | 2 | 2.63 | 3.5 | 4.61 | 5.58 | 7.5 | 11.2 | 13.1 | 14.1 | |
Stirring speed (Rpm) | 4~6 | ||||||||||
Designed pressure in container (Mpa) | -0.25 | ||||||||||
Designed pressure of jacket (Mpa) | <= 0.3 | ||||||||||
Operating temperature (Degree Celsius) | <=85 (in container) <= 140 (jacket) | ||||||||||
Vacuum pump (with condenser) | Type | 2X-15A | 2X-15A | 2X-30A | 2X-30A | 2X-70A | JZJX300-8 | JZJX300-4 | JZJX600-8 | JZJX600-4 | JZJX300-4 |
Power (kw) | 2 | 2 | 3 | 3 | 5 | 7 | 9.5 | 11 | 20.5 | 22 | |
Vacuum pump (without condenser) | Type | SK-0.4 | SK-0.8 | SK-0.8 | SK-2.7B | SK-2.7B | SK-3 | SK-6 | SK-6 | SK-9 | SK-10 |
Power (kw) | 1.5 | 2.2 | 2.2 | 4 | 4 | 5.5 | 11 | 11 | 15 | 18.5 |



Nanjing Howell Electromechanical Equipment Co., Ltd. was established in 1999, with its predecessor being Nanjing Ma Du Electric Heating Equipment Factory. After more than two decades, the company has gathered a team of professional talents in the field of electromechanical research and design. In 2001, the company passed the ISO9000 quality system certification, and has provided various high-quality products to users at home and abroad for many years.
Our company provides standardized and customized drying equipment, mixing equipment, and refrigeration and freezing equipment for customers in different industries.

Tenet -- Innovation Perfection
Spirit -- Enthusiasm Sharing Positive
Principle -- Quality Service
Objective -- Continuous progress makes the leading brand
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