FLU 83 – Weighing-bagging machines for preformed valve bags
FLU 83 Series weighing-bagging machines for preformed valve bags, suitable for coarse and abrasive powders.
The distinctive feature of the model FLU 83 weighing-bagging machine is its ability to handle coarse and abrasive powders. Flexible and universal, it has a field of use extending from the food to the chemical and mining industries.
Its modularity allows combined configurations of 2, 3 or 4 bagging machines in line with an electronic weighing system (with load cells).
Minimal overall size
Dust extraction port
Adjustable-height bag cradle designed to enable filling of bags of variable size
No moving parts as bagging is performed by an electronic system
Technical data
LOW-PRESSURE BAGGING SYSTEM
The product is handled at low pressure and fed into the pressurisation chamber, which propels it into the bag.
he bagging system comprises:
- A butterfly valve, installed at the intake point, to control the feeding of product.
- A pressurisation valve (cone valve).
- A pressure chamber complete with fluidizer plates. The pressure chamber has a “reverse angle” shape to facilitate the fall of product. All angles are rounded to minimise build-ups of product.
- A stirrer (optional) for handling products with particularly poor flow.
- A series of pneumatic valves to control the weighing phases (full flow and finishing flow) and stop the passage of product at once when the weight is reached.
SYSTEM ENGINEERING
FLU 83 weighing-bagging machines can be configured individually or in multiple installations (up to 4) in line (see fig. A + B). The system is automated through combination with the model FB automatic empty bag feeder (see fig. C).
Fig. A
Configuration with three bagging machines in line.
Fig. B
Configuration with four machines in line.
Fig. C
Combination of bagging machine with empty bag feeder.
Fig. D
Combination of bagging machine with empty bag feeder, robotised palletiser and hooding machine.
GENERAL CHARACTERISTICS
TYPES OF POWDERS
Abrasive powders and those with mixed particle size (concrete premixes, ground refractories, non free-flowing chemicals).
VALVE SIZES
STANDARD
The FLU 83 Series can be equipped with bagging spouts suitable for valves in the standard sizes 90 mm · 110 mm · 130 mm · 150 mm.
SPECIAL
Spouts for special valve sizes (other than those listed above) are also available on request.
SIZE CHANGE
The same bagging machine can be equipped to fill bags of different sizes.
In this case, tooling the machine takes an estimated “size changeover time” of about 30 minutes (in semi-automatic version).
HOURLY PRODUCTION RATES
The production rate depends on valve size, product type and bag weight. The graphs illustrate the relationships between these parameters.
ELECTRONIC WEIGHING
Electronic weighing eliminates moving parts, meaning there will be no wear.
The electronic weighing system is our model PA-1921, which provides instantaneous reading of the actual weigh and control of the tare.
It is type-approved by the notified bodies in accordance with the European MI-006 Directives for automatic weighing instruments.
PA-1921 ELECTRONIC CONTROL UNIT
The model PA-1921 electronic control unit, connected to the weighing system, provides pre-setting of the weighing phases and the final weight value.
The current weight is displayed immediately.
MOTOR-COMPRESSOR UNIT
The chamber is pressurised by a rotary-lobe compressor able to deliver high volumes at low pressure.
OPTIONALS
“FLIP-OVER” FULL BAG EJECTION
Full bags are removed via “flip-over” ejection.
For greater production efficiency, once it is full the bag can be removed via optional installation of the device which pneumatically swings the bag cradle.
The bag is ejected onto the removal conveyor belt coaxial with the main belt.
This application is recommended in the following configurations:
Single, Double with operator seated in central position, or Triple or Quadruple when combined with automatic empty bag feeder.
“VERTICAL” FULL BAG EJECTION
Full bags are removed via “vertical” ejection.
In this variant, the bag filler is equipped with “shell plates” which guide the bag during ejection.
The bag is removed bottom-forward, coaxial with the conveyor.
This application is recommended in the both single and multiple configurations with manual empty bag feeding.
BAG VALVE SEALING WITH ULTRASOUND SEALER
ON-BOARD VERSION
Before the full bag is ejected, the bag valve is sealed by an ultrasound sealer which ensures excellent performance even in dusty conditions.
With this application, the bagging machine’s throughput rate is reduced by about 20%.
IN-LINE VERSION
The filled bags are removed to be conveyed, via a bag presser, to the model G853 in-line ultrasound sealer.
AUTOMATIC EMPTY BAG FEEDING
Combination with the model FB automatic feeder automates the bagging machine: the operator has only to oversee the system and keep the empty bag magazine supplied.
INFLATABLE SPOUT TO REDUCE DUST EMISSIONS
This application sharply reduces dust emissions during bag filling.
With this application, the bag must be micro perforated and must also be fitted with a valve (with sealable external collar).
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Bagging system
LOW-PRESSURE BAGGING SYSTEM
The product is handled at low pressure and fed into the pressurisation chamber, which propels it into the bag.
he bagging system comprises:
- A butterfly valve, installed at the intake point, to control the feeding of product.
- A pressurisation valve (cone valve).
- A pressure chamber complete with fluidizer plates. The pressure chamber has a “reverse angle” shape to facilitate the fall of product. All angles are rounded to minimise build-ups of product.
- A stirrer (optional) for handling products with particularly poor flow.
- A series of pneumatic valves to control the weighing phases (full flow and finishing flow) and stop the passage of product at once when the weight is reached.
System engineering
SYSTEM ENGINEERING
FLU 83 weighing-bagging machines can be configured individually or in multiple installations (up to 4) in line (see fig. A + B). The system is automated through combination with the model FB automatic empty bag feeder (see fig. C).
Fig. A
Configuration with three bagging machines in line.
Fig. B
Configuration with four machines in line.
Fig. C
Combination of bagging machine with empty bag feeder.
Fig. D
Combination of bagging machine with empty bag feeder, robotised palletiser and hooding machine.
General characteristics
GENERAL CHARACTERISTICS
TYPES OF POWDERS
Abrasive powders and those with mixed particle size (concrete premixes, ground refractories, non free-flowing chemicals).
VALVE SIZES
STANDARD
The FLU 83 Series can be equipped with bagging spouts suitable for valves in the standard sizes 90 mm · 110 mm · 130 mm · 150 mm.
SPECIAL
Spouts for special valve sizes (other than those listed above) are also available on request.
SIZE CHANGE
The same bagging machine can be equipped to fill bags of different sizes.
In this case, tooling the machine takes an estimated “size changeover time” of about 30 minutes (in semi-automatic version).
HOURLY PRODUCTION RATES
The production rate depends on valve size, product type and bag weight. The graphs illustrate the relationships between these parameters.
ELECTRONIC WEIGHING
Electronic weighing eliminates moving parts, meaning there will be no wear.
The electronic weighing system is our model PA-1921, which provides instantaneous reading of the actual weigh and control of the tare.
It is type-approved by the notified bodies in accordance with the European MI-006 Directives for automatic weighing instruments.
PA-1921 ELECTRONIC CONTROL UNIT
The model PA-1921 electronic control unit, connected to the weighing system, provides pre-setting of the weighing phases and the final weight value.
The current weight is displayed immediately.
MOTOR-COMPRESSOR UNIT
The chamber is pressurised by a rotary-lobe compressor able to deliver high volumes at low pressure.
Optionals
OPTIONALS
“FLIP-OVER” FULL BAG EJECTION
Full bags are removed via “flip-over” ejection.
For greater production efficiency, once it is full the bag can be removed via optional installation of the device which pneumatically swings the bag cradle.
The bag is ejected onto the removal conveyor belt coaxial with the main belt.
This application is recommended in the following configurations:
Single, Double with operator seated in central position, or Triple or Quadruple when combined with automatic empty bag feeder.
“VERTICAL” FULL BAG EJECTION
Full bags are removed via “vertical” ejection.
In this variant, the bag filler is equipped with “shell plates” which guide the bag during ejection.
The bag is removed bottom-forward, coaxial with the conveyor.
This application is recommended in the both single and multiple configurations with manual empty bag feeding.
BAG VALVE SEALING WITH ULTRASOUND SEALER
ON-BOARD VERSION
Before the full bag is ejected, the bag valve is sealed by an ultrasound sealer which ensures excellent performance even in dusty conditions.
With this application, the bagging machine’s throughput rate is reduced by about 20%.
IN-LINE VERSION
The filled bags are removed to be conveyed, via a bag presser, to the model G853 in-line ultrasound sealer.
AUTOMATIC EMPTY BAG FEEDING
Combination with the model FB automatic feeder automates the bagging machine: the operator has only to oversee the system and keep the empty bag magazine supplied.
INFLATABLE SPOUT TO REDUCE DUST EMISSIONS
This application sharply reduces dust emissions during bag filling.
With this application, the bag must be micro perforated and must also be fitted with a valve (with sealable external collar).
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