Drum dryers are a reliable solution for continuous, large-scale drying of raw materials with diverse structures – such as biomass, extracts, minerals, or materials with high initial moisture content. Our devices combine solid construction with high energy efficiency, ensuring high capacity and process repeatability, which is essential for maintaining consistent final product quality.

Drum dryers are proven solutions for continuous, gentle, and energy-efficient drying of a wide range of materials – from biomass, sludge, and minerals to food, chemical, or pharmaceutical products. Thanks to indirect heating with saturated steam and a uniform temperature distribution, the drying process is stable and free from the risk of overheating the material.

During operation, a thin layer of product is applied to the rotating drum, which is heated from the inside. In contact with its surface, moisture evaporates within a few seconds, and the dried material in the form of flakes or powder is precisely separated by a scraping knife. This results in a homogeneous, high-quality final product, with minimal energy consumption and low dust emission.

Advantages
of Drum
Dryers:

  • High thermal efficiency – steam consumption of approx. 1.3–1.5 kg per 1 kg of evaporated water.
  • Continuous and fully automatic process, guaranteeing repeatability and stable quality.
  • Gentle drying without excessive mechanical or thermal impact.
  • Compact design with small space requirements and low operating costs.
  • Capability to work with various heat sources – steam, hot gases, thermal oil.
  • Options for stainless steel construction or with coatings resistant to abrasion and corrosion.
  • Integrated control systems monitoring temperature, rotational speed, and humidity.

Main
Technical
Features:

1. Construction and Execution

  • • Drum made of high-grade construction or stainless steel (optionally with anti-corrosion or chrome coating).
  • Internal distribution blades ensuring uniform drying and heat exchange.
  • Thermally insulated casing, limiting energy loss and heat emission to the environment.
  • Stable support frame with a system of support rollers and a drive regulated by an inverter.

2. Operating Parameters

  • Operating mode: continuous, indirect (heating with saturated steam, hot air, or thermal oil).
  • Temperature range: (depending on the heating medium and type of material).
  • Drying time: 2 s – 2 minutes (regulated by drum rotational speed and layer thickness).
  • Drum rotational speed: 2–10 rpm (smoothly controlled).
  • Throughput: from to several tons/h, depending on the model and material.

3. Product Feeding and Discharge System

  • Uniform application of material onto the drum surface using application rollers or a spraying system.
  • Scraping off the dried product with a scraping knife with adjustable pressure.
  • Transport of the product to a cooler, mill, or packaging system.

4. Efficiency and Energy Saving

  • High heat exchange efficiency – steam consumption of approx. 1.3–1.5 kg per 1 kg of evaporated water.
  • Closed steam and condensate system, limiting media consumption.
  • Low dust emission and no need for extensive filtration.

5. Automation and Process Control

  • PLC control system with parameter visualization (temperature, humidity, drum speed).
  • Capability for integration with the plant’s supervisory control system (SCADA).
  • Temperature protections and level sensors to protect the product and the device.

6. Additional Options

  • Single- or double-drum versions.
  • Vacuum versions for drying products sensitive to high temperatures.
  • Possibility of using various heat sources – gas, steam, oil, hot process gases.
  • CIP (Clean-In-Place) cleaning system for the food and pharmaceutical industries.