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Drais
Planetary Kneader Mixer
with shear blade mixing system
--convincing
in functionality and economic efficiency--
 Schematic
arrangement of mixing action of the high shear blade agitator system:
Contrary to conventional
planetary mixers, the two blade configurations sweep the wall of
the can clockwise and rotate in opposite directions at about three
times the speed of travel. The shear blades displace the material
from the walls of the can and by their overlapping action the center
carry the particles towards the agitator shafts, therefore producing
a large field of shear forces. By this means even highly viscous
and cohesive material can be efficiently mixed.
Applications:
Mixing, kneading and degassing viscous, heat sensitive and above
all, cohesive pastes, dough and moist, crumbly masses, such as sealing
compounds, adhesives, printing inks, dental plastics, plastisols,
condensed soups, battery compounds, cream cracker doughs, etc.
System
Advantages
The shear blade mixing system prevents riding of the material, accelerates
the incorporation of fine, powdery solids and ensures constant material
turnover along the tank wall. In most cases a scraper blade to sweep
the tank wall can be dispensed with. Rise and fall adjustment of
blade configuration. Easy cleaning. Change can readily movable and
free from dead space.
Machine
Upright
Enclosed fabrication Baseplate extension features tracks for castors
of change can. Catch pins to ensure exact central positioning of
change can. Device for rapid locking of can.
Upper
Assembly
Housing for agitator drive, mounted for vertical adjustment on elevating
and guide columns. Dust-tight flared hood.
Elevating
Mechanism
Upper assembly has rise and fall adjustment through manual or motorized
operation of mechanical or hydraulic elevating gear, depending on
size of machine.
Change
Can
Mounted on fixed and swivel castors and fitted with handles.
Shear
Blade agitator configuration
Two shafts running in anti-friction bearings mount helical disposed,
oppositely pitched blades.
Drive
On model FH 1.5 S, variable speed gear unit with broad vee belt
transmission. Models FH 6 S and FH 300 S obtain drive from a geared
motor and splash-lubricated bevel gears. Models from FH 500 S are
driven through three-phase motor and vee belt transmission. Elevating
gear has individual drive, which is, however, interlocked with the
main drive. Two-hand safety control (inching operation).
Special
Versions
Components in contact with the mix can be of individually specified
materials. Vacuum tight and/or pressure tight mixing chamber. Scrapper
blade to sweep inside wall change can. Demountable mixing elements.
Change can is jacketed for hot water or steam heating, for water-cooling
or for oil bath or electrically heated circulating oil system. Mixing
tank with bottom discharge - suitable for the use forced discharge
equipment. Drive to agitator assembly through pole changing motor
or variable speed gear unit.
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DRAIS TORRMAT Vacuum Planetary
Kneader Mixer, type FH 600 S, in the working position.
Special version for the preparation of visco-elastic sealing
compounds - preferably on a silicon basis. Capacity of change
can: 600 liters. Demountable shear-blade agitators. Variable
speed control of mixing elements. Charging hatch combined
with inspection port. Illuminated inspection glass.
DRAIS Planetary Kneader Mixer
featuring vertically traversible shear blade agitator assembly.
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TYPES
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FH
1.5 S
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FH
6 S
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FH
30 S
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FH
80 S
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FH
165 S
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FH
300 S
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FH 500 S
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FH 600 S
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FH
800 S
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FH 1000S
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FH
1200 S
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Change Can:
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Capacity(l)
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1.6
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6
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30
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80
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165
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300
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500
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600
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800
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1000
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1200
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Diameter(D)
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145
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220
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390
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490
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640
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790
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940
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990
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1138
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1238
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1336
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Overall Height(E)
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100
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220
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640
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655
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735
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825
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935
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1000
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1095
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1145
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1145
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Overall Dimensions
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Length(A)
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460
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700
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1220
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1400
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1780
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1850
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2200
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2225
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2700
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2750
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2750
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Width(B)
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350
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400
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680
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600
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750
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900
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1000
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1050
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1200
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1300
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1350
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Height(C1)
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850
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775
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1290
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1410
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1660
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1660
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2000
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2000
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2395
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2395
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2395
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Height-upper ass.(C2)
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1000
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1620
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1870
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2220
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2300
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2750
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2825
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3295
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3295
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3295
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Power Requirements
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Agitator HP
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0.25
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0.75
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2.2
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4.4
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5.5
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9
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15
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15
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30
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30
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30
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Elevating Mech. HP
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0.75
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1.1
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1.1
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2
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2
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4
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4
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4
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Weight (kg)
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80
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175
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640
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1100
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1500
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1800
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3200
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3500
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7000
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7250
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7500
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DRAIS Planetary Kneader
Mixers are produced in other types, for various field of application.
For example, they can be provided with vertical rod shaped agitators
(FH Series) for simple mixing duties, with paddle agitators and
centrally arranged DRAIS pinned disc impactor unit (FH-EST series)
for breaking down agglomerates and emulsifying ointments, with three
mixing arms (FH 3A series) for dealing with viscous or plastic masses.
Other special versions are available (FF-3A, DND and FS series)
for preparing explosive or highly inflammable materials.
Model FH 1.5
S, intended for lab and test shop use, has the following special
features: Demountable agitator blade assembly. All components coming
in contact with the mix of stainless, acid-resistant steel No: 1.4571.
Removable mixing pot designed for vacuum operation, secured in position
by bayonet locks, jacketed for heating or cooling. Variable speed
drive to agitator assembly. Hydraulically assisted manually operated
elevating mechanism.
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