Bag-filling machines FFS method

Turnkey solutions are offered for bagging of solids, liquids or powders in industrial bags. Tallpack Bulgaria's FFS filling machines seal in two places using tabular film or with 3 or 4 seals when using flat film. Tallpack Bulgaria's FFS filling machines are suitable for polyethylene material.

How does the FFS filling machine work?

The operator panel of the FFS machine allows visualization of the weight during the process, automatic control of auto-tare and auto-compensation. It also allows setting the parameters directly from the panel. The microprocessor adapts the scale speed and the time for finishing and/or roughing in accordance with the product and dynamically adapts to its characteristics. Thanks to this capability, the scale monitors the weight accuracy even to the last residue in the hopper. Our CONCEPT scale can reach a processing capacity of 2200 bags/hour. The weight ranges from 10 to 50 kg. The operator panel displays information and allows troubleshooting.

Technical specification:

• Packaging material: tubular film from polyethylene
• Full bag length: 350 ~ 750 mm
• Empty bag length: 450 – 850 mm

Optional features:

Manifold for dust collector

Manifold combines all dust collecting ports on the packaging machine into one centralized port. Manifold in stainless steel AISI 304; 2.5 m maximum distance between the machine and aspirating unit.  Distances exceeding this will incur an additional cost. Pipeline at each aspiration point has a throttle valve for flow regulation

Corner "K" sealing unit - AISI 304

This unit seals the four corners of the bags to make a chevron type seal. In this way it makes a more resistant square bag which increases pallet stability, moreover when the bag is being emptied no pellets are left into the bag’s corners. Sealer unit is made of coated steel. Sealing jaws are mounted on linear cylinders drive system. Sealing surface can be easily and rapidly replaced thanks to the Teflon stock.

Sealing height and depth position are adjustable from the outside of the machine.

Special execution for aggressive products is available as main body chassis and pneumatic cylinders in stainless steel.

Air evacuation system

This process is required in type of production working with hermetic sealed bags. Hermetic bags have been proven to increase shelf life by more than double. Before performing the top seal, mechanical jaws hold the two edges of the bag which are then opened by means of vacuum suction cups. Vacuum nozzles enter into the bag head space and evacuate the air inside the bag. Right after sufficient amount of air is removed, the bag's top seal is performed. The quantity of air evacuated is directly correlated to the amount needed for palletizing. The entire operation can be regulated and controlled, switched ON or OFF through the operator touchpad. The hermetic bag has no pinholes and thus no air permeability.

Outlet roller conveyor 1000mm hinged to COMPACTA series bagging machines

Roller conveyor with adjustable feet, hinged to the bagging machine to self-adjust its height depending on the bag length. It could be inclined of maximum 18°.

Broken bags detector

Broken bags can be intercepted on belt line by photocell located into the conveyor and detecting bag spilled product.

Dust collector and filter of 5 m²

Filter and aspirating unit to collect product dust with aspiration fan is available. The unit has fabric filtering hoses of 5 m² approx. The capacity of aspiration with clean hoses is 600 m³/hour at 250 mm H₂O. Installed power of 1,1 kW is achievable.
Free air emission is less than 10 mg/Nm³ (*).

The body of the filter is completely made of stainless steel. The support, the product discharging hopper and the collection container are in painted steel.

Bag cutting and bag bottom sealing

Bag bottom cut and seal jaws perform their duties by cutting and seal the bag film edge. With a light air blow the sealing is cooled down. Sealing bars are covered by Teflon sheet and mounted on slides to allow a quick disassembly for extraordinary maintenance.

BAG FILLING:

Once the bag has been opened, several sensors verify its opening, then allow the feeding spout to be opened. Feeding spout will almost hermetically seal all around the opened film, in this way it does not allow the product to spill out in the filling phase. The feeding spout is specially designed to be connected to a dust-collector by mean of a manifold to remove dust from the products.

During the feeding the machine inside roller conveyor has a special portion which perform the bottom bag shaking in order to settle the product into the bags.

Bag top sealing jaws will close and seal the top of the bag. With a light air blow the sealing is cooled down. Sealing bars are covered by Teflon sheet and mounted on slides to allow a quick disassembly for extraordinary maintenance.

Sealing bars heating element temperature and impulse duration as long as the air-cooling air blowing are adjustable by machine operator panel.

Bag flattener with squared rollers for bags without micro-perforation

Bag flattener unit is composed by two overlapped roller conveyors with squared rollers. The upper belt is pivoted and allows the regulation of the height of the incoming bag.