Poly (plastic) bag sealers use heat to “melt” the bag closed. Inpak Systems offers three types of commercial poly bag sealers: band sealers, jaw sealers, and hot air sealers. Band Sealers: Band sealers have two bands (belts), typically infused with PTFE to prevent sticking, that hold the top of the bag and carry it between heating elements that seal... Read more
Year: 2018
Types of Bagging Scale Feeders
The choice of a bagging scale feeder is dependent on your product’s flow characteristics. The types of scale feeders include gravity, vibratory, belt, auger, impeller, and air packer. Gravity Feeders: Gravity baggers are available as gross or net weigh baggers and utilize gravity to fill bags with free-flowing, high-density materials like flakes, granules, or pellets where the product easily falls... Read more
Mechanical vs. Digital Bagging Scales
Bag filling scales are available with a mechanical weighing mechanism or a digital weighing mechanism. Mechanical Bagging Scales Mechanical scales have a counterbalance weight system. Certified counterweights (i.e. 1, 2, or 5 lb.) are hung on the scale. A smaller weight on a slide bar (much like the old doctor’s scale) or a threaded rod is used for fine adjustment... Read more
Gross Weigh vs Net Weigh Bagging Scales
There are two types of bagging scales based on how the product is weighed: gross weigh scales and net weigh scales. Gross Weigh Bagging Scales With gross weigh scales, the bag is hung on the scale spout and the bag weight is zeroed out. As the product is added to the bag, the bag is weighed. When the desired weight... Read more
Conveyors to Position, Condition & Move Bags.
Bagging conveyors are used to move filled bags from the bag filler through the bag closer and onto the palletizing area. The following are different types of bagging conveyors. Inline Bag Check Weight Conveyor Since bag filling scales can’t be weight certified, an inline weight certifiable conveyor can be used to weigh bags. As the bag passes over the... Read more
What Bagging Conveyor Options Do I Need?
How do I decide what bagging conveyor options I need? Well, selecting a conveyor is like buying a car. First, you decide on the model (i.e. sedan, convertible, SUV), then you pick the options (i.e. color, engine size, CD player). Likewise, with a conveyor… do you need a transfer, kicking, flattening, or turning conveyor? Then, based on your specific needs,... Read more