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ECONOMICAL FEEDING OF COLORANTS, ADDITIVES M E T E R I N G F E E D E R S
B F S A N D B F H AT- T H E - T H R O AT M O D E L S
P R E C I S E M E T E R I N G R E D U C E S C O L O R A N T C O S T S
Conair feeders provide injection molders and extruders with a
versatile, economical way to volumetrically meter colorants or
other additives into the flow of virgin material directly at the
throat of the processing machine.
By metering additives directly at the throat, greater savings in
material inventory and colorant can be achieved over tradi-
tional pre-colored or centrally blended material schemes. M o d e l f o r l o w / h i g h t h r o u g h p u t
Model BFS and BFH feeders feature a compact size for metering additives
to machines down to 0.01 gram per second or up to 160 lb. per hour.
Model BFH provides high throughput metering up to 100 grams per second
or 800 lb. per hour. I n j e c t i o n o r e x t r u s i o n c o n t r o l
The precision injection control provides on-demand metering, based on a signal
from the press. The extrusion control is designed to operate continuously with
the extruder. E a s y, n o - t o o l s c l e a n o u t
BFH models have removable supply hoppers and augers to allow fast clean-out
for color changes. The standard BFS model has a stationary hopper, a removable
supply hopper option is available. D i g i t a l s e t p o i n t a c c u r a c y
Easy-to-set thumbwheel switches provide digital accuracy for speed and time
rate control. O p t i o n a l l o w l e v e l a l a r m
Small add-on module offers audible and visual warnings if the additive level
drops below the hopper sight glass.
ECONOMICAL
FEEDING
OF
COLORANTS,
ADDITIVES
Each feeder is equipped with a throat
adapter that fits between the material
supply hopper and the processing
machine throat. The feeder connects
easily to the adapter allowing additives
to be metered by an auger into the
flow of material as it passes through
the adapter. Up to two feeders may be
mounted on one throat adapter.
For injection machines the feeders
digital timer controls the metering
motor during screw recovery. This sup-
plies a consistent volume of additive in
proportion to the flow of material into
the machine throat.
For extruders the feeder meters
continuously. The speed control of
the extrusion models includes a volt-
age tracking circuit to slave the
feeder metering rate to the speed of
the extruder.
BFH model
BFS model
TPBM008/0405 TPBF008/0405
M E T E R I N G F E E D E R S
B F S A N D B F H AT- T H E - T H R O AT M O D E L S
F E A T U R E S / O P T I O N S
The precision feeder control for
injection molding provides on-
demand metering, based on a
signal from the press (for example,
the screw retraction start.) The
signal may be a contact closure or a
voltage (Choose from these avail-
able voltages: 120 VAC; 240 VAC; or
24 VDC). Push button thumbwheels
set the metering cycle time and
motor speed. An accurate digital
timer controls the metering duration
indicated by the setting. The feeder
speed setting is a percentage of
maximum motor speed.
The extrusion control for the feeder
is designed to operate continuously
with the extruder, to meter a pre-
cise flow of additives at the desired
rate. Push button thumbwheels set
the speed of the metering auger.
The speed of the feeder may be
slaved to the extruder with a DC
voltage follower circuit, driven by
the extruder tach generator or
armature voltage (0 to 600 VDC or
4-20 milliamps). (Shown is control
with optional voltmeter.)
The compact BFS model is available with an optional
quick release hopper with a built-in electrical interlock
and slide gate that allows quick removal cleaning and
replacement for color changes. No tools are required.
The standard BFH model includes a combination
hopper/auger assembly that may be quickly
removed from the feeders mainframe/motor
assembly. No tools are required.
The BFS Feeder with a
Conair self-contained
vacuum loader.
The loader automatically fills
the additive hopper with
color concentrate or other
pelletized additives.
The BFH Feeder with a
DustBeater mounted on
a high volume loader
extension.
At 500 pounds per hour, the
standard Conair DustBeater
assures a reliable material
supply for extrusion or
continuous molding. Choose
the brushless DustBeater for
loading rates up to 1000
pounds per hour.
The low level alarm kit may
be factory ordered, or may be
installed later on any feeder
control package.
Hopper loaders for feeders keep feeder hoppers full automatically.
Low level alarm kit
One Conair Drive Pittsburgh, PA 15202 412-312-6000 FAX 412-312-6227 www.conairnet.com
CONTROLS
OPTIONS
FEATURES AND OPTIONS TPBS008/0405
M E T E R I N G F E E D E R S
B F S AT- T H E - T H R O AT M O D E L S
S P E C I F I C A T I O N S
One Conair Drive Pittsburgh, PA 15202 412-312-6000 FAX 412-312-6227 www.conairnet.com
BFS augers
A*
E
C
D
B
MODEL
BFS
AUGER SIZES
inches
3/8 X 1/4
3/8 X 3/8
1/2 X 1/2
3/4 X 3/4
1 X 1
mm
{9.53 X 6.35} {9.53 X 9.53} {12.70 X 12.70} {19.05 X 19.05} {25.40 X 25.40}
Performance Characteristics - pellets only
Throughput@ 9 rpm, Injection grams/sec
0.005 to 0.05
0.007 to 0.071
0.016 to 0.16
0.049 to 0.49
0.11 to 1.1
Throughput @9 rpm, Extrusion lb/hour
0.042 to 0.42
0.056 to 0.56
0.13 to 1.3
0.39 to 3.9
0.86 to 8.6
Throughput@ 30 rpm, Injection grams/sec 0.018 to 0.18
0.024 to 0.24
0.054 to 0.54
0.16 to 1.6
0.36 to 3.6
Throughput @30 rpm, Extrusion lb/hour
0.14 to 1.4
0.19 to 1.9
0.43 to 4.3
1.3 to 13.0
2.9 to 29.0
Throughput@ 64 rpm, Injection grams/sec 0.038 to 0.38
0.051 to 0.51
0.12 to 1.2
0.35 to 3.5
0.77 to 7.7
Throughput @64 rpm, Extrusion lb/hour
0.30 to 3.0
0.40 to 4.0
0.92 to 9.2
2.8 to 28.0
6.1 to 61.0
Throughput@ 95 rpm, Injection grams/sec 0.056 to 0.56
0.075 to 0.75
0.17 to 1.7
0.52 to 5.2
1.1 to 11.0
Throughput @95 rpm, Extrusion lb/hour
0.45 to 4.5
0.60 to 6.0
1.4 to 14.0
4.1 to 41.0
9.0 to 90.0
Throughput@170 rpm, Injection grams/sec
0.10 to 1.0
0.13 to 1.3
0.31 to 3.1
0.92 to 9.2
2.0 to 20.0
Throughput @170 rpm, Extrusion lb/hour
0.80 to 8.0
1.1 to 11.0
2.4 to 24.0
7.3 to 73.0
16.0 to 162.0
Hopper capacity
ft
3
{liter}
0.5 {14.1}
0.5 {14.1}
0.5 {14.1}
0.5 {14.1}
0.5 {14.1}
Motor power
Hp {kW}
1/8 {0.093}
1/8 {0.093}
1/8 {0.093}
1/8 {0.093}
1/8 {0.093}
Gear motor output
rpm
0 - 8, 0 - 30, 0 - 60, 0 - 95, 0 - 170
Dimensions inches {mm}
Top/bottom throat adapter plate
6 X 6 {152 X 152}
8 X 8 {203 X 203}
A - Overall height - with removable hopper
21.6875 {550.9}
21.6875 {550.9}
A - Overall height - with standard hopper
21.3125 {541.3}
21.3125 {541.3}
B - Loader lid adapter height (optional)
3.375 {85.7}
3.375 {85.7}
C - Length to centerline throat plate
22.5 {571.5}
23.5 {596.9}
D - Hopper to centerline throat plate
8.875 {225.4}
9.875 {250.8}
E - Throat adapter height
6.5 {165.1}
7 {177.8}
Weight lb {kg}
Installed 61
{27.7}
Shipping 110
{49.9}
Voltage Total running amps
120/1 phase/60 Hz
4
240/1 phase/50-60 Hz
2
SPECIFICATION
NOTES
*
Overall height is
different with the
optional removable
hopper. See
the specification
table.

Throughput is depen-
dant upon the combi-
nation of auger and
motor rpm selected. Optional loader
adaptor lid is shown
for use with 8 inch
and TLM tube
loader, standard is
supplied with a
handfill lid.
Specifications can
change without notice.
Check with a Conair
representative for the
most current informa-
tion. TPBS008/0405
M E T E R I N G F E E D E R S
B F H AT- T H E - T H R O AT M O D E L S
S P E C I F I C A T I O N S
One Conair Drive Pittsburgh, PA 15202 412-312-6000 FAX 412-312-6227 www.conairnet.com
MODEL
BFH
AUGER SIZES
inches
1/2 X 1/2
3/4 X 3/4
1 X 1
1 1/2 X 1 1/2
2 X 2
mm
{12.7 X 12.7} {19.05 X 19.05} {25.4 X 25.4} {38.1 X 38.1}
{50.8 X 50.8}
Performance Characteristics (pellets and free flowing powder*)
Throughput@ 9 rpm, Injection grams/sec
0.013 to 0.13
0.037 to 0.37
0.081 to 0.81
0.26 to 2.6
0.59 to 5.9
Throughput @9 rpm, Extrusion
lb/hour
0.10 to 1.0
0.29 to 2.9
0.64 to 6.4
2.1 to 21.0
4.7 to 47.0
Throughput@ 30 rpm, Injection grams/sec 0.043 to 0.43
0.12 to 1.2
0.27 to 2.7
0.87 to 8.7
2.0 to 20.0
Throughput @30 rpm, Extrusion lb/hour
0.34 to 3.4
0.97 to 9.7
2.1 to 21.0
6.9 to 69.0
16 to 155.0
Throughput@ 64 rpm, Injection grams/sec 0.091 to 0.91
0.26 to 2.6
0.57 to 5.7
1.9 to 19
4.2 to 42.0
Throughput @64 rpm, Extrusion lb/hour
0.72 to 7.2
2.1 to 21.0
4.6 to 46.0
15.0 to 147.0
33.0 to 331.0
Throughput@ 95 rpm, Injection grams/sec
0.14 to 1.4
0.39 to 3.9
0.85 to 8.5
2.8 to 28.0
6.2 to 62.0
Throughput @95 rpm, Extrusion lb/hour
1.1 to 11.0
3.1 to 31.0
6.8 to 68.0
22.0 to 219.0
49 to 491.0
Throughput