Paddle Dryer in Food Industry

Paddle Dryer in Food Industry

Our hygienic design specifications prevent cross-contamination and meet the safety regulations. We have paid special attention to easy accessibility for cleaning purposes.



Remove heat from a process mass with cold water or glycol (up to to -40 °C)  in a controlled moisture-free environment. Dual-zone temperatures are also possible in the system.

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We have custom-design Paddle Dryers where you can roast the starches and grains to weaken their gas holding capacities.

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Heat a process mass for tempering, cooking, or pasteurization. The heating medium can either be Steam, a circulated Thermal Fluid, or Hot Water.

We provide a fully enclosed Paddle Dryer that ensures safe and hygienic handling of food products. Additionally, our design pays special attention to provide accessibility for cleaning and maintenance purposes. We also provide end-to-end customization for the Paddle Dryer that fits your needs and serves your purpose. 

Common Applications of Paddle Dryer in the Food Industry
  • Roasting of starch
  • Sterilization of animal feed
  • Denaturing flour
  • Blending and thermal processing
  • Cooling hygroscopic beverage powders
  • Tempering fat containing products
  • Toasting
  • Cooking
  • Melting

Drying Starch
Paddle dryers can be used for a variety of applications, including drying modified starch. Unlike native starch, modified starch should be kept at a certain degree of temperature while drying in order to attain the desired characteristics.

Similar approach is undertaken while processing Wheat. The Paddle Dryer is used as a reactor to weaken the Wheat’s gas holding capacity. In another reactive method, Wheat powder is roasted, which enables it to be used in food products.

Sterilizing Animal Feed
A challenge for fodder is the partial sterilization of animal feed, or additives. While processing the animal feed, the target is to reduce the amount of microorganisms below a critical limit. This can be achieved by increasing the product’s temperature to 75–80 °C from room temperature.

In order to accelerate the desired reduction in bacteria, steam is fed into the process. The paddle geometry and alignment is adjusted to ensure optimal residence time and even transport of the product through the machine.

AS Engineers’ Paddle roaster/cooler lies at the heart of the process. The Paddle Dryer has a heated or cooled trough that contains heated or cooled paddle shafts which are allowed to rotate. The product inside the dryer bed comes in total contact with the walls of the shafts, trough, and the paddles, thereby heating or cooling the product evenly. The feed is pushed continuously into the front of the machine. The trough leans towards the unloading position slightly being oriented at a low angle of inclination. This makes the product move towards the outlet via gravity. The paddles inside the Paddle Dryer are designed for maximum heat transfer even when they do not have any transport function. The product exits from the machine via the overflow unit on the outlet side.

Our paddle roaster/cooler, with its low rotation speed of the paddle shaft and indirect roasting or cooling principle is responsible for the equipment’s zero substance emission. However, if one wants to use a gas cleaner, like a gas scrubber or gas filter, one can keep the size small due to the low gas flow rates. Once this heating and cooling process is completed, the final dried product is packed in bulk bags.

Effortless & Stress-free Daily Operations

Seamless Operation

Continue your daily operations with ease and peace of mind. Our Paddle Dryer is engineered to help you monitor the process with minimal interference while displaying vital features on the screen.

Straightforward Maintenance

No metal-to-metal contact and no internal parts to maintain means you can spend more time on analyzing the daily operations without having to worry about the wear and tear.

Superior Design