Dryers and Coolers
Dryers and coolers are used to adjust the moisture content and temperature of bulk solids as part of industrial processing. They support stable storage, safe handling, and preparation for downstream steps such as mixing, granulation, or packaging. Different designs, including rotary drums, fluid beds, spray systems, paddles, and discs, are applied depending on the material properties and process requirements. These machines are found across industries such as fertilizers, minerals, chemicals, food, and biomass, where achieving consistent drying and cooling results is an important part of overall process efficiency.
Rotary Drum Dryers & Coolers
Rotary drum dryers are robust cylindrical systems that use direct or indirect heating to remove moisture from bulk solids. They are widely applied in fertilizers, minerals, chemicals, and biomass where high throughput and continuous operation are critical. Rotary coolers follow a similar design, lowering product temperatures for safe handling, storage, or downstream processing. Their advantages include versatility, durability, and proven reliability across multiple industries.
Fluid Bed Dryers & Coolers (Fluidized Bed Dryers)
Fluid bed dryers suspend solid particles in a controlled hot air stream, allowing uniform heat transfer and rapid drying. They are especially valued in pharmaceuticals, food, and chemicals for their energy efficiency, short drying times, and precise moisture control. Fluid bed coolers apply the same principle, ensuring gentle, efficient cooling of temperature-sensitive products. They are widely used where product integrity and consistency are key.
Spray Dryers
A spray dryer atomizes liquid feed into fine droplets, which are instantly dried in a stream of hot air to form free-flowing powders. This technique is indispensable in milk powder, coffee, flavors, ceramics, and detergents, where uniform particle size and excellent solubility are essential. Spray drying is particularly effective for heat-sensitive liquids, providing fast processing, consistent quality, and long product shelf life.
Paddle Dryers
Paddle dryers employ hollow, wedge-shaped paddles rotating in a jacketed trough to provide indirect heating, mixing, and drying. They are well-suited for sludges, industrial by-products, and heat-sensitive materials, offering low operating costs, efficient solvent recovery, and uniform drying results. Their compact design and versatility make them a reliable choice for waste treatment, chemical processing, and resource recovery.
Disc Dryers
Disc dryers are indirectly heated systems fitted with steam- or fluid-heated discs mounted on a rotating shaft. They provide gentle but high-capacity drying for sludges, biomass, and pastes, ensuring low emissions and efficient heat transfer. Their compact footprint and durability make them ideal for continuous, large-scale industrial applications where space and energy savings are priorities.