Our Company

Erie Technical Systems Inc. uses experience in dry solids handling to provide innovative solutions for every customer's unique needs. 

Bulk Filling Equipment

Erie Technical Systems Inc. manufactures standard and custom bulk packaging equipment for industrial applications.


Bulk Unloading Equipment

Erie Technical Systems, Inc. manufactures manual and automatic equipment for unloading all types of bulk materials.  Our products include bulk bag unloaders, bulk box dumpers, bulk bag conditioners.  


Flexible Screw Conveyors

Custom flexible screw conveyors manufactured by Erie Technical System, Inc. are designed to convey materials in any direction and past any obstacle for your processing and packaging needs.  

Pallet Dispensers & Stackers

Not only does Erie Technical Systems, Inc. manufacture standard pallet handling equipment and systems, but we also manufacture custom equipment. Our top of the line PalletMax pallet dispenser, slip-sheet dispensers and roller conveyors are often paired with our line of bulk bag fillers. 


Vibratory Conveying Equipment

Erie Technical Systems, Inc. manufactures vibratory feeders, vibratory conveyors and vibratory spiral elevators for moving all types of bulk materials. Our quality vibratory transfer equipment is easy to clean and maintain because of our unique design that ensures the product never comes in contact with any moving parts. 


Vibratory Densification Equipment

Erie Technical Systems Inc. manufactures Vibratory Densification Equipment to increase density for bulk material packing. Our densification packers improve storage, reduce shipping and packaging costs. They can also stabilize bulk bags for transport and stacking.  

Industrial Rotary Electric Vibrators

Erie Technical Systems Inc. carries a complete line of Industrial Rotary Electric Vibrators that can be used in a variety of industrial applications. 


Ajax Shaker Drives

Erie Technical Systems Inc. is a distributor of Renold Ajax Shaker Drives.  These are used on vibratory conveyors, shaker tables, feeders, screeners, sorting conveyors, packers, and more.

Autoclave Fittings

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Contact Erie Technical Systems

For custom solutions for bulk filling of boxes, totes, bags & drums or for industrial bulk bag unloaders & pallet handling - contact Erie Technical Systems, Inc. today!

P: 814-899-2103       F: 814-899-2146



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Erie Technical Systems, Inc.

How do I choose the right bulk bag filler based on my project goals?

Posted on Thursday, April 27, 2017 at 8:00 AM

Rate of Filling

The rate of filling is the single largest factor that determines the design and cost of a bulk bag filler.  The filling rate is the number of bulk bags that need to be filled in an hour.  Simply put – the more bulk bags per hour the more automated and expensive the machine. 


Each fill cycle consists of filling time and setup time.  The filling time is the time that the product is flowing into the bag.  Since the filling time is fixed, the equipment design can reduce cycle time by improving the setup time.  The setup time is determined how fast the operator can remove the filled bulk bag and prepare the next bag for filling.  This normally requires the operator to add a new skid, attach the four bag loops, attach the bag spout and start the cycle.  A well-designed bulk bag filler will reduce the time required for these operations through design and automation. 


Bulk Bag Size and Type

The size and style of a bulk bag can dictate the type of bulk bag filler being used.  Bulk bags are flexible and must be supported during filling process.  Most commonly bulk bags are square and are held up using bag loops located in the four corners.  The bag loops can be held using two rods, or the four corners can be held independently.  The dimensions of bulk bags can vary greatly, but a typical size is 44” wide x 44” deep x 60” tall (112 cm x 112 cm x 150 cm).  If the machine must fill assorted sizes of bulk bags, the equipment must be designed for quick changeover. 


The top of the bag will either be an open top or will include a filling spout.  In an open bag the filling can be done through a simple tube.  For applications where dusting or external contamination is an issue, a bag with a spout should be used.  A typical spouted bulk bag will have a 14” diameter (36 cm) spout.  The spout is sealed around the fill tube either with a clamp or by using and inflatable seal.  When filling quickly, provisions must be made for the displaced air to leave the bag while the bulk material is being added.  Use of a spouted bag also permits pneumatic inflation of the bulk bag prior to filling which ensures all the bulk bag is filled.

 Tim Porco - Erie Technical Systems Inc. - timp@erietechnicalsystems.com 

Product to be Packaged

The final item to consider when buying a bulk bag filler is the material being placed in the bag.  Product density, flow characteristics and angle of repose are all crucial factors.  For high density applications, the bulk bag filler must be structurally sound.  For low density materials vibration can be added to pack the material and maximize the amount of material in the bulk bag.   Vibration can also be used to flatten out the cone on materials with a high the angle of repose.  Again, this allows for filling more material in each bulk bag. 


Once a review of these three key areas has been made, selection of a properly designed bulk bag filler with the proper features should be straightforward.  


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