1.milling

cutting

1.Cutter mill
Size reduction by cutting is done by knives

Impact

Attrition

Compression

3.triple roll mill
uses suppensions , pastes, ointments ( by attrition)

4. Hammer mill
Size reduction of nux vomica seeds

2 single drive roller mill
2 rolls made of metal or stone mouted horizontaly

2.MIxing

powder

mixing

Agitation mixer^

1.Sigma blade mixer
The rotation of the sigma blades
couses the materialtomix

2. High sheer mixer
The particles movement tends
to quickly mix the powder

3.Vertical Impeller mixer
It's required little floorspace

Tumbling mixers

Semi
solid

Beaters

l.planetary mixer
contain tow can

kneaders

l. sigma arm mixer
can be single or double arm

mix - Extuders

l. Roto feed mixer
The matenial is fed into
the end of the chomber

mixing rolls

Liquid
mixing

propeller mixers
propeller shift may be mouted at the angle

impeller mixers
use for liquid of low viscosity

paddles mixers

Air jets
These symptoms use pressurized air or gas

Attrition and Impact

5.Ball mill
>Speed of rotation
°Low speed
°High speed
°2/3 speed
6.pin mill
Material fed through
the centerof the stationary disc
7.fluid energy mill
With very sensitive materials,
inert gas may be used
8.colloid mill
Colloid mill not used for
size reductionofsolids

Granulation

Spray

Fluidized bed granulator

This method employing moist granules
and dry them in one operation

Single punch tablet machines

Dry

Chilsonator

Two specialy grooved rolls,
which rotate toward each other
(moving in oppositedirection)