COMBI SA – Weighing, bagging, and closing line
COMBI SA – Semi-automatic weighing, bagging, and closing line.
With operator
Equipped with a semi-automatic system for the management of the bagging process
Typically used in sectors such as the food, chemical or agro-industrial industry
Technical data
- Composition of the line
- Advantages of the system
- Applications
- General characteristics
- Optionals
- Download pdf
COMPOSITION OF THE LINE
Weighing system
Automatic scale with load cells to ensure maximum accuracy in the dosing of the product.
Filling system
Semi-automatic filling system, where the operator presents the empty bag to the filling spout equipped with pneumatically activated clamps.
Belt conveyor
Belt conveyor to convey the full bags towards the stitching/sealing machine. Its height can be easily adjusted through a handle, according to the dimensions of the bag.
Bag closure
Bag closure by stitching (or heat sealing, in case of plastic bags).
OPERATOR’S TASKS
- Presenting the empty bag to the filling spout.
- Aligning the flaps of the full bag’s mouth and inserting them at the infeed of the stitching/sealing machine.
ADVANTAGES OF THE SYSTEM
1
EFFICIENCY AND SPEED
The combination of automation and human intervention provides a good balance between accuracy and flexibility.
2
COMPACTNESS
Compact and small in size, adaptable to small areas (limited floor space):
- Length 3,1 m
- Width 1 m
- Height 2,1 m
3
VERSATILITY
Usable with different types of bags (paper, plastic, woven or laminated polypropylene) and for various products (granules, powders, and pellets).
4
OPERATIONAL SAFETY
Protection and reporting systems in case of errors.
5
QUICK TO ASSEMBLE
Preassembled and tested in our workshops to minimize the assembly time on site, it being shipped completely assembled, wired, and tested.
6
HIGH WEIGHING ACCURACY
APPLICATIONS
Depending on the desired level of airtightness, the choice is among the following options:
SIMPLE SEAM
Paper, polypropylene, cotton, jute, polythene
SEAM WITH FOLDING OVER
Paper, polythene, polypropylene
SEAM WITH TAPE
Paper
The types of closure SC, CR, and CC are guaranteed by the type of dynamic conveyor (optional) applied.
A conveyor belt will then guide the filled bags from the bagging to the closing area.
SIMPLE SEALING
Polythene
The SS type of closure is applicable to polythene bags and is achieved using a hot bar sealer with thermostatically controlled bars, pneumatically activated.
The bag is guided through the sealer by a dynamic (motorized) conveyor, which is equipped, in the presence of dust, with an internal cleaner (to ensure proper sealing). The sealing time (extension) and temperature are fully adjustable according to the bag material and the throughput of the line.
The transfer of filled bags from the bagging area to the sealing area is achieved using a single conveyor belt for low speeds of less than 200 bags/hour and a double conveyor belt for speeds greater than 200 bags/hour.
GENERAL CHARACTERISTICS
FILLING SPOUT
Bag-clamping assembly featuring pneumatically operated grippers to secure and support the bags during filling operations, thereby preventing dust dispersion into the environment.
Main characteristics
- Pneumatically controlled clamps:
the system uses pneumatic cylinders to hermetically seal the bag neck around the filling spout. - Compatible with different bag types:
suitable for plastic, paper, fabric, or composite bags. - Dust-proof seal:
prevents dust leakage, improving safety and hygiene in the workplace. - Ease of use:
the pneumatic control allows the clamps to be opened and closed quickly and efficiently, reducing operator workload. - Possible integration with suction systems:
for additional dust control during filling or emptying.
Advantages
- Reduced dust dispersion:
greater operator safety and reduced environmental contamination. - Greater operational efficiency:
automatic clamping allows to speed up the filling processes. - Ergonomics and safety:
prevents the operator from having to manually hold the bag in place. - Reliability and durability:
robust and wear-resistant pneumatic systems.
BAG GUIDES
Made of steel (stainless steel in case of applications on corrosive products).
Fully adjustable in height and width in order to adapt to the dimensions of the bags.
SEWING HEAD
According to the type of closure and to the application, the suitable sewing head – manufactured by Fischbein or Union Special – will be proposed.
SCISSOR-TYPE THREAD CUTTER
After the stitching, the thread is cut by pneumatic scissors mounted outside the sewing head.
BLOW-TYPE THREAD CUTTER
As an alternative to the “scissor-type thread cutter”, a “blow-type thread cutter” – where the thread chain is fed between the cutting blades by means of a pneumatic air jet – is proposed.
SEALING BARS
The bags are sealed using two bars heated by electric heating elements (thermostatically controlled).
The sealing action is pneumatic.
The height and number of the sealing lines can easily be modified from the standard (which is 2 lines, each 7mm high).
A labyrinth seal is proposed for air evacuation from inside the bag.
LABYRINTH SEAL
OPTIONALS
NE - NET WEIGHT SCALE
Net weight weigher for powders and granules.
Used for the precise dosing and packaging of bulk materials, such as flour, sugar, grains, animal feed, plastic granules, and other powder or granular products.
Main characteristics:
- Net weight weighing: the product is weighed before being discharged into the bag, ensuring precision.
- Precise dosing: via a single or double screw feeder, conveyor or gravity belt, depending on the fluidity and flowability of the product being weighed.
- Automation: integrated with bagging systems to optimize the production process.
BAG SHAKER – Mod. UNIVERSAL A2
Bag shaker used to densify and compact powder.
Designed to reduce the volume of the bag contents for easier handling and storage.
Bag shakers to compact powder into the bags work by applying low-frequency and high-amplitude vibrations, keeping the bag suspended from its mouth.
Advantages of using a bag shaker to densify powder:
- Volume reduction:
this allows for space optimization during transport and storage. - Better handling:
a more compact bag is more stable and easier to handle. - Less powder dispersion:
this reduces the risk of spills and contamination during opening.
AERATING PROBE FOR POWDERS
It is a device designed to remove the air trapped inside fine powders contained in a bag, with the aim of densifying the material and reducing its volume.
This type of equipment is particularly useful for fine products, where controlling density and flowability is essential to optimize the handling and storage of filled bags.
The operating principle is based on the insertion of a probe inside the bag containing the powder.
The system operates by suctioning air using a vacuum pump.
The probe creates a vacuum effect to remove the air trapped between the powder particles, causing the material to densify.
Advantages of a deaerating probe for powders:
- Densification of the material:
improves the compactness of the powder, reducing the overall volume of the bag. - Reduced dust dispersion:
prevents spills and loss of material during handling.
BAG CLEANER FOR THE SEALER
When handling dusty products, a cleaning device is used to clean the inside of the bag and prepare it for sealing.
The bag mouth is opened while a blowing nozzle enters the opening to clean it.
The pneumatically operated system includes a dust extraction port to capture the dust generated during the process.
LABELLER
Designed to handle pre-printed and pre-cut tags, this unit is integrated into the system to sew a tag onto the bag mouth.
The tags are stored in a container (capacity of approximately 600 tags), picked up one by one (using suction cups), and transferred to the sewing head via a small belt. The system is simple and reliable.
The tags used must fall within the following dimensions:
| MIN | MAX | |
| Width | 150 mm | 200 mm |
| Height | 90 mm | 150 mm |
| Grammage | 100 g/m² | 120 g/m² |
FULL BAG TIPPER
The full bag in vertical position is evacuated longitudinally, at 90 degrees, thanks to the tipper.
More specifically:
- the bag advances (standing) on the motorized roller conveyor;
- the deviation system, with motorized belts, lifts (pneumatically) and deviates the bag at 90 degrees, tipping it with the bottom forward.
CLAMP BAG TURNER
A pneumatically operated gripper is used to discharge the filled bags lengthwise relative to the conveyor axis, with the bag bottom leading.
This clamps the bag at the top and rotates it.
AGGRESSIVE ENVIRONMENTS
Should the system be located in aggressive environments, a treatment is applied to limit corrosion.
Most parts are in stainless steel, while those there are not are protected with epoxy paint.
The nuts and bolts used are made of 304 stainless steel.
DOWNLOAD PDF FOLDER
Composition of the line
COMPOSITION OF THE LINE
Weighing system
Automatic scale with load cells to ensure maximum accuracy in the dosing of the product.
Filling system
Semi-automatic filling system, where the operator presents the empty bag to the filling spout equipped with pneumatically activated clamps.
Belt conveyor
Belt conveyor to convey the full bags towards the stitching/sealing machine. Its height can be easily adjusted through a handle, according to the dimensions of the bag.
Bag closure
Bag closure by stitching (or heat sealing, in case of plastic bags).
OPERATOR’S TASKS
- Presenting the empty bag to the filling spout.
- Aligning the flaps of the full bag’s mouth and inserting them at the infeed of the stitching/sealing machine.
Advantages of the system
ADVANTAGES OF THE SYSTEM
1
EFFICIENCY AND SPEED
The combination of automation and human intervention provides a good balance between accuracy and flexibility.
2
COMPACTNESS
Compact and small in size, adaptable to small areas (limited floor space):
- Length 3,1 m
- Width 1 m
- Height 2,1 m
3
VERSATILITY
Usable with different types of bags (paper, plastic, woven or laminated polypropylene) and for various products (granules, powders, and pellets).
4
OPERATIONAL SAFETY
Protection and reporting systems in case of errors.
5
QUICK TO ASSEMBLE
Preassembled and tested in our workshops to minimize the assembly time on site, it being shipped completely assembled, wired, and tested.
6
HIGH WEIGHING ACCURACY
Applications
APPLICATIONS
Depending on the desired level of airtightness, the choice is among the following options:
SIMPLE SEAM
Paper, polypropylene, cotton, jute, polythene
SEAM WITH FOLDING OVER
Paper, polythene, polypropylene
SEAM WITH TAPE
Paper
The types of closure SC, CR, and CC are guaranteed by the type of dynamic conveyor (optional) applied.
A conveyor belt will then guide the filled bags from the bagging to the closing area.
SIMPLE SEALING
Polythene
The SS type of closure is applicable to polythene bags and is achieved using a hot bar sealer with thermostatically controlled bars, pneumatically activated.
The bag is guided through the sealer by a dynamic (motorized) conveyor, which is equipped, in the presence of dust, with an internal cleaner (to ensure proper sealing). The sealing time (extension) and temperature are fully adjustable according to the bag material and the throughput of the line.
The transfer of filled bags from the bagging area to the sealing area is achieved using a single conveyor belt for low speeds of less than 200 bags/hour and a double conveyor belt for speeds greater than 200 bags/hour.
General characteristics
GENERAL CHARACTERISTICS
FILLING SPOUT
Bag-clamping assembly featuring pneumatically operated grippers to secure and support the bags during filling operations, thereby preventing dust dispersion into the environment.
Main characteristics
- Pneumatically controlled clamps:
the system uses pneumatic cylinders to hermetically seal the bag neck around the filling spout. - Compatible with different bag types:
suitable for plastic, paper, fabric, or composite bags. - Dust-proof seal:
prevents dust leakage, improving safety and hygiene in the workplace. - Ease of use:
the pneumatic control allows the clamps to be opened and closed quickly and efficiently, reducing operator workload. - Possible integration with suction systems:
for additional dust control during filling or emptying.
Advantages
- Reduced dust dispersion:
greater operator safety and reduced environmental contamination. - Greater operational efficiency:
automatic clamping allows to speed up the filling processes. - Ergonomics and safety:
prevents the operator from having to manually hold the bag in place. - Reliability and durability:
robust and wear-resistant pneumatic systems.
BAG GUIDES
Made of steel (stainless steel in case of applications on corrosive products).
Fully adjustable in height and width in order to adapt to the dimensions of the bags.
SEWING HEAD
According to the type of closure and to the application, the suitable sewing head – manufactured by Fischbein or Union Special – will be proposed.
SCISSOR-TYPE THREAD CUTTER
After the stitching, the thread is cut by pneumatic scissors mounted outside the sewing head.
BLOW-TYPE THREAD CUTTER
As an alternative to the “scissor-type thread cutter”, a “blow-type thread cutter” – where the thread chain is fed between the cutting blades by means of a pneumatic air jet – is proposed.
SEALING BARS
The bags are sealed using two bars heated by electric heating elements (thermostatically controlled).
The sealing action is pneumatic.
The height and number of the sealing lines can easily be modified from the standard (which is 2 lines, each 7mm high).
A labyrinth seal is proposed for air evacuation from inside the bag.
LABYRINTH SEAL
Optionals
OPTIONALS
NE - NET WEIGHT SCALE
Net weight weigher for powders and granules.
Used for the precise dosing and packaging of bulk materials, such as flour, sugar, grains, animal feed, plastic granules, and other powder or granular products.
Main characteristics:
- Net weight weighing: the product is weighed before being discharged into the bag, ensuring precision.
- Precise dosing: via a single or double screw feeder, conveyor or gravity belt, depending on the fluidity and flowability of the product being weighed.
- Automation: integrated with bagging systems to optimize the production process.
BAG SHAKER – Mod. UNIVERSAL A2
Bag shaker used to densify and compact powder.
Designed to reduce the volume of the bag contents for easier handling and storage.
Bag shakers to compact powder into the bags work by applying low-frequency and high-amplitude vibrations, keeping the bag suspended from its mouth.
Advantages of using a bag shaker to densify powder:
- Volume reduction:
this allows for space optimization during transport and storage. - Better handling:
a more compact bag is more stable and easier to handle. - Less powder dispersion:
this reduces the risk of spills and contamination during opening.
AERATING PROBE FOR POWDERS
It is a device designed to remove the air trapped inside fine powders contained in a bag, with the aim of densifying the material and reducing its volume.
This type of equipment is particularly useful for fine products, where controlling density and flowability is essential to optimize the handling and storage of filled bags.
The operating principle is based on the insertion of a probe inside the bag containing the powder.
The system operates by suctioning air using a vacuum pump.
The probe creates a vacuum effect to remove the air trapped between the powder particles, causing the material to densify.
Advantages of a deaerating probe for powders:
- Densification of the material:
improves the compactness of the powder, reducing the overall volume of the bag. - Reduced dust dispersion:
prevents spills and loss of material during handling.
BAG CLEANER FOR THE SEALER
When handling dusty products, a cleaning device is used to clean the inside of the bag and prepare it for sealing.
The bag mouth is opened while a blowing nozzle enters the opening to clean it.
The pneumatically operated system includes a dust extraction port to capture the dust generated during the process.
LABELLER
Designed to handle pre-printed and pre-cut tags, this unit is integrated into the system to sew a tag onto the bag mouth.
The tags are stored in a container (capacity of approximately 600 tags), picked up one by one (using suction cups), and transferred to the sewing head via a small belt. The system is simple and reliable.
The tags used must fall within the following dimensions:
| MIN | MAX | |
| Width | 150 mm | 200 mm |
| Height | 90 mm | 150 mm |
| Grammage | 100 g/m² | 120 g/m² |
FULL BAG TIPPER
The full bag in vertical position is evacuated longitudinally, at 90 degrees, thanks to the tipper.
More specifically:
- the bag advances (standing) on the motorized roller conveyor;
- the deviation system, with motorized belts, lifts (pneumatically) and deviates the bag at 90 degrees, tipping it with the bottom forward.
CLAMP BAG TURNER
A pneumatically operated gripper is used to discharge the filled bags lengthwise relative to the conveyor axis, with the bag bottom leading.
This clamps the bag at the top and rotates it.
AGGRESSIVE ENVIRONMENTS
Should the system be located in aggressive environments, a treatment is applied to limit corrosion.
Most parts are in stainless steel, while those there are not are protected with epoxy paint.
The nuts and bolts used are made of 304 stainless steel.
Download pdf
DOWNLOAD PDF FOLDER
For more information, fill out the form.
