Rotary Atomizers

Rotary Atomizer F800 from GEA Niro

Long lasting, heavy duty designs Patented atomizer wheel designs  Atomizer parts exposed to feed are designed to comply with US-3A and other, similar national sanitary directives

What is a rotary atomizer?
An atomizer is an atomization apparatus. In the manufacturing process, fine powder is produced by spraying molten or dissolved materials through an atomizer and solidifying the droplets.

The rotary atomization process
Atomizing solution means to pulverize something into very tiny pieces. Atomization is conversion of bulk liquid into a spray or mist (i.e. collection of drops) through a high speed atomizer. Despite the name, it does not usually imply that the particles are reduced to atomic sizes.

GEA Niro rotary atomizer solutions
GEA Niro produces a large range of rotary atomizers, from portable, units through to large-scale industrial production units. Currently, 12 patented model types are available, and the most commonly used sizes are:

Atomizer Name	Speed	Motor shaft power	Application
F035X	Direct driven	10000 - 50000 RPM 0.35 kW	Under development
F1.5X	Direct driven	10000 - 30000 RPM 1.5 kW	Pharmaceutical plants
F15D	Direct driven	5000 - 24000 RPM 2.5 - 10 kW	Food product plants, Chemical product plants, Hard metal plants
F100	Geared	7250 - 17750 RPM 75 kW	Food and dairy plants, Chemical plants, Air pollution control plants
F350	Geared	5350 - 13400 RPM 260 kW	Chemical plants, Air Pollution Control plants, Food and Dairy plants, Mining plants
F800	Geared	8800 - 11450 RPM 800 kW	Air Pollution Control plants, Mining plants
F1000	Geared	8800 - 9500 RPM 1000 kW	Air Pollution Control plants

Rotary Atomizer F1.5X

Benefits of GEA Niro rotary atomizers
• Long lasting, heavy duty designs
• Patented atomizer wheel designs
• The atomizer parts exposed to feed comply with US-3A and other, similar national sanitary directives.

Rotary atomizer monitoring system comprises
• Low oil pressure alarm
• High and low oil level alarm
• High oil temperature alarm
• Flooding alarm protecting against feed leakage
• Spindle vibration alarm protecting against excessive vibration conditions
• Tachometer to register spindle speed when adjusted by control of a frequency converter.

The rotary atomizer drive
There are two different types of atomizer drives:

• Gear driven
• Direct driven

The gear driven atomizers uses food approved oil for lubrication of gears and bearings. The directly driven atomizers are driven by high speed motors and are equipped with double sealed ball bearings greased for life to avoid any kind of oil or grease contamination in the final product.

The rotary atomizer wheel
The patented design of insert type wheel selection depends upon the operating specifications. Basically there are two types:

• The channel wheels
• The abrasive resistant wheels

The straight channel wheels are used in cases where there are no specific requirements of bulk density in the final product. The curved channel wheels produce higher bulk density (higher than with a straight channel wheel) in case of organic products.
The abrasive resistant wheels are used for products that expose the wheel to hard wear, such as fluid gas cleaning, mining industry, hard metals and silica.