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Our customer needed a big bag filling system for handling steel tool powder that would have the flexibility of filling bulk bags of a range of different sizes, while accurately filling each size to a specified weight. The machine also needed to be relatively dust-tight to avoid product wastage.

The custom-built, fully automated big bag filler, or IBC, was designed with an adjustable filling head that automatically moves up and down according to the bag size entered into the control panel. Vibrators agitate the contents of the bag so that the powder settles correctly and an air pump is used to inflate the bag to ensure a tight seal around the neck for optimum dust containment. The air pump also inflates the bag to ensure that powder does not collect in the folds and creases inside the bag, facilitating the filling process.

In order to accurately control the feed into the bags, a rotary valve was included beneath the feeder head, keeping the whole system in vertical alignment. This valve ensures that the product is fed into the bag in a controlled manner, and the machine automatically stops when the required weight is attained.

The operator fits the bag, programs the bag size into the machine and enters the required weight and closes the doors. The air pump then inflates the bag seal to fully secure the inlet and ensure dust containment during material transfer from the customer’s feeding system into the bag.

The fan then fills the bag with air, to ensure that the material can fill the bag without any residue accumulating in folds or corners.

Once the bag is inflated, the rotary valve starts to feed the bag. The weight is monitored using pre-programmed bag weight data and the weighing platform. Once the bag is approximately two thirds full, the rotary valve ceases filling and the vibrators turn on to help settle the material in the bag.

Once the contents have settled, filling continues until the bag is 95 per cent full. The rotary valve speed slows right down to create a slow feed fill for greater accuracy. Once the required weight is reached, feed again stops and the vibrators agitate the material to settle the material inside the bag. The bag is then reweighed to check that the weight is correct. If not, more material is added until the exact target weight has been attained, upon which point the full bag can be detached and stored and a new bag fitted for filling.

The complete process can be recorded, giving the customer detailed records of batch numbers and weights, with the use of an identifying bar code/labelling system if required.

 Advantages to our customer

  • Successful dust containment so no health and safety issues or unnecessary product waste.
  • Fully automated therefore less manual labour.
  • Increased production due to much faster filling speeds – just a few minutes per bag.
  • Full batch weight recording and control and much improved accuracy.

Guttridge

Guttridge Ltd is a flourishing company, globally respected for delivering well-engineered bulk materials handling solutions, yet still evolving to meet today’s fast-changing industrial needs. Based in Spalding, Lincolnshire, Guttridge were founded in 1962 and tackle applications in every industrial sector, from grain to aggregates and cement, from food to pharmaceutical.

Guttridge Ltd is a flourishing company, globally respected for delivering well-engineered bulk materials handling solutions, yet still evolving to meet today’s fast-changing industrial needs. Based in Spalding, Lincolnshire, Guttridge were founded in 1962 and tackle applications in every industrial sector, from grain to aggregates and cement, from food to pharmaceutical. The company work at the forefront of bulk materials handling technology supported by close connections with the UK’s leading research establishments and University based solids handling experts. Most importantly, Guttridge are committed to anticipating and meeting their customers’ evolving requirements for higher throughput, maximum cost efficiency, lower energy consumption and exemplary reliability.

Guttridge specialise in the design and manufacture of:
– bucket elevators
– chain conveyors
– screw conveyors
– belt conveyors
– FIBC bulk bag dischargers
– mixers, bins and other ancillary bulk materials handling equipment

Guttridge can offer not only standard machinery but also custom built equipment to suit our customers varying requirements and are accredited with ISO9001 and Investors in People (IIP) and are members of SHAPA – the Solids Handling and Processing Association.

Spares for bulk materials handling equipment are always available from Guttridge with many parts kept in stock for quick supply.

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