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

Latest News


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



Learn More

Erie Technical Systems, Inc.

How to control dust when packaging material into a bulk bag?

Posted on Wednesday, May 10, 2017 at 8:00 AM

Why use a bulk bag with a liner?

Using a plastic poly liner inside the bag has two advantages.  First the dust cannot get through the woven bag itself.  Fine powders can be pushed through the openings in the woven material of the bulk bag.   The second is that the liner can be made with a neck that can be used to achieve a dust tight seal with a properly designed bulk bag fill head.


What is a bulk bag fill head? – The simple approach…

Bulk bag fill head designs vary but the goal is the same – to allow for bulk materials to be quickly filled into a bulk bag without losing any of the material and reducing the dust produced.  Bulk bags with liners generally narrow to about a 14” diameter at the bag neck.  The simplest bulk bag fill head approach is to attach the bag neck to a piece of pipe that is slightly smaller in diameter.  The liner is attached using a strap or cord.  This design is simple and inexpensive but does not address a critical issue with respect to dusting.  As the material enters the bag, there is nowhere for the displaced air to go.  The air must escape either through the fill head or it is forced out between the bag neck and the fill head creating a dust cloud. 


Properly designed bulk bag fill head features

The critical points to address in designing a bulk bag fill head are to provide a dust tight seal on the bag neck and to provide a path for displaced air to escape. The way to deal with this is to manufacture the fill head as a tube within a tube.  The bag spout can attach to the outer tube and the product can flow into the bag through the inner tube.  This double tube approach leaves an open space between the tubes for the displaced air to escape.  A large exit port that can be directed to a dust collection system is attached above the bag neck.   The seal on the bag neck can be made with an inflatable bladder that pushes out and captures the bag neck.  For oversized back necks or duffel top bags, a special pinch ring or split ring can be used with the inflatable bladder. 


By solving these critical issues, bulk bags can be filled rapidly with a minimum release of dust creating a safer, cleaner working environment. 


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


Site Menu Toggle Site Menu