| Type |
Principle |
Application |
Diagram |
Picture |
| Single
screw |
Coating by ingredient addition during
transfer and mixing in rotating screw ptitches |
Medium-size products.
Animal feed, petfood, seeds |
continuous |
 |
| Twin
screw |
Coating by ingredient addition during
transfer and mixing in two counter rotating screws |
Medium-size products, sticky solutions
Cereals, nuts, fishfeed, confectionery centers, seeds |
continuous |
 |
| Bowl |
Agitation and mixing through a
stirring shaft. The bowl can also roatate |
Powder to medium-size products, fluid
to very sticky solutions.
Muesli, seeds. |
batch |
 |
| Pan |
Mixing through pan rotation. May be
fitted with fligths for agitation. Angle and speed adjustable. |
Small to medium-size products, sticky
solutions. Long residence time.
Typical for "dragee panning" with chocolate or
sugar syrup |
batch |
 |
| Drum |
Mixing through drum rotation.May be
fitted with fligths for agitation. Angle and speed
adjustable. |
Small to medium-size products, ligth
solutions. Long residence time.
Snacks, chips, cereals. |
continuous |
 |
| Turbine |
Mixing through drum rotation. May be
fitted with fligths for agitation. Speed adjustable. |
Small to medium-size products, sticky
solutions. Long residence time.
Improved "dragee panning" with chocolate or sugar
syrup |
batch |
 |
| Vacuum |
Mixing through paddle rotation under
vacuum |
Small to medium-size products, ligth
solutions. Long residence time.
Pet food, fish feed, muesli |
batch |
 |
| Fluidbed |
Agitation through airflow. Progressive
coating through repeated spraying application and drying
phases. |
Small size products, ligth
solutions.
Typical for "encapsulation" or "instant
products with high added value |
batch/continuous |
 |
| Atomisation |
Coating by liquid fine dispersion and
drying. |
Typical for "encapsulation" |
continuous |
 |
| Spray |
Airless or air powered liquid
dispersion. |
Medium to large size products,
ligth to viscous solutions.
Biscuit/oil, licorice/oil |
continuous |
 |
| Spray
& drip |
Airless or air powered liquid
dispersion. Excess recovery. |
Medium to large size products,
ligth to viscous solutions.
Biscuit/chocolate, pie/gelee. |
continuous |
 |
| Spray
film |
Spraying inside and enclosed chamber
where the product passes |
Medium to large size products,
ligth solutions. Animal feed, petfood. |
continuous |
 |
| Screen
& drip |
Constant overhead flow of
solution. |
Medium to large size products,
viscous solutions.
Typical for "chocolate enrobing" |
continuous |
 |
| Bath
drip |
Coating by immersion into a bath and
dripping of excess. |
Large size products, viscous
solutions.
Typical for "batter & crumb coating" |
continuous |
 |
| Dip |
Coating by dipping in a viscuous
solution. |
Large size products, viscous
solutions.
Typical for "ice cream cones chocolate enrobing" |
continuous |
|
| Coextrusion |
Coating of a pumpable paste inside a
solidifying casing. |
Gel or solid state products.
Typical for sausages or extruded pillows
|
continuous |
 |
