ANDRITZ Dedert air bearing atomizer

A new era in spray drying

The ANDRITZ Dedert air bearing atomizer introduces a new era in spray drying—delivering consistent droplet formation, superior particle uniformity, and high powder quality with excellent operational reliability. Its oil-free and contact-free operating principle ensures the highest product purity and hygienic standards, making the atomizer suitable for food-grade, pharmaceutical, and chemical applications.

With its advanced engineering and air-supported rotor system, the atomizer sets new benchmarks for sustainable drying performance, reduced energy consumption, and low operating costs.

ANDRITZ Dedert air bearing atomizer

Air bearing atomizer explained in 30 seconds

How the air bearing atomizer works – ushering in a new standard

At the heart of this innovation is a fully air-supported shaft system. Instead of traditional mechanical bearings, a thin film of pressurized air supports the shaft of the rotary atomizer, enabling frictionless operation at high speeds with true alignment while eliminating wear on parts. This eliminates the need for lubricants, gearboxes, or complex mechanical assemblies, prevents product contamination, and simplifies maintenance and cleaning routines.

The proprietary air distribution design enables stable, precise, and high-speed operation, supporting consistent particle size distribution and uniform drying behavior – key factors in modern spray drying for exceptionally smooth and sanitary performance.

Why the air bearing atomizer leads the new era in spray drying

Oil-free and contact-free technology
The atomizer runs entirely without lubricants, relying solely on instrument air. This eliminates contamination risks and ensures clean, sanitary operation.
Reliable, robust, and low-maintenance design
The robust construction features only one moving part, eliminating wear-and-tear, reducing spare part usage, and minimizing maintenance requirements.
Simple, sanitary, and safe handling
The oil-free operation prevents product contamination and simplifies sanitation procedures. Stainless-steel product-contact parts and a lightweight titanium disc support hygienic handling and easy integration into CIP processes.
Sustainable and energy-efficient operation
Permanent magnet motor technology achieves high power levels and some of the highest disc-tip speeds in the industry, while delivering efficiencies of up to 95%. This significantly reduces energy consumption and lowers the carbon footprint.

Intelligent control and monitoring

The atomizer includes an integrated control module with an HMI, PLC, and instrumentation for utility control. The graphical user interface provides intuitive process visibility and includes data recording for all parameters.

Operators can monitor temperature, vibration, load, and speed in real time. Diagnostic functions and remote assistance support fast troubleshooting, stable operation, and optimized performance.

This ensures predictable behavior even during process fluctuations, viscous feeds, or high dynamic loads.

Upgrade your equipment – compatible for all makes and models of spray dryers

This solution is not limited to new ANDRITZ installations. The ANDRITZ Dedert air bearing atomizer is compatible with all common spray dryer designs worldwide – regardless of OEM. Its compact, modular design and standardized interfaces enable easy integration as a retrofit solution with minimal modification effort.

Upgrading an existing spray dryer with the air bearing atomizer offers immediate benefits:

Improved powder consistency and product quality through precise droplet formation
Minimal maintenance thanks to oil-free, contact-free operation
Reduced energy consumption driven by high-efficiency motor technology
Enhanced hygiene and contamination safety
Extended equipment lifetime due to the wear-free bearing concept

This makes the air bearing atomizer an ideal solution for modernizing existing spray drying lines without major system redesigns.

ANDRITZ service and engineering experts support feasibility evaluation, integration, installation, commissioning, and long-term optimization – ensuring a smooth and efficient upgrade process.

Key technical information and available sizes

The air bearing atomizer is available in three model sizes:

Each model covers a broad capacity range – from pilot-scale development to full industrial production.

All detailed technical specifications can be found in the official product brochure in the download section below.

Ready to enter a new era in spray drying?

Whether you are planning a new spray dryer installation or looking to upgrade your existing system with the ANDRITZ Dedert air bearing atomizer, our experts are ready to support you.

Contact us to discuss your project and explore how the air bearing atomizer can elevate your drying performance.

Dedert - Air bearing atomizer

A revolution in spray drying