--- title: Resource Hub - Blog | bulk bag discharger description: bulk bag discharger | Spiroflows blog - keep up to date with news, technical information and product launches. --- [![](http://academy.spiroflowsystems.com/hubfs/Logos/Spiroflow-Logo.jpg "Spiroflow-Logo.jpg")](http://www.spiroflowsystems.com) [![](http://academy.spiroflowsystems.com/hubfs/Logos/US-US-Phone-Numbers.jpg "US-US-Phone-Numbers.jpg")](http://www.spiroflowsystems.com) - [Home](http://www.spiroflowsystems.com/) - [About Us](http://www.spiroflowsystems.com/about-us/) - [Products](http://www.spiroflowsystems.com/equipment/) - [CTE Bulk Bag Filler](http://www.spiroflowsystems.com/equipment/bulk-bag-fillers/technical.cfm?id=52) - [Cone Table Densification](http://www.spiroflowsystems.com/equipment/bulk-bag-fillers/technical.cfm?id=52) - [Model AC Bulk Bag Filler](http://www.spiroflowsystems.com/equipment/bulk-bag-fillers/) - [Model S Bulk Bag Filler](http://www.spiroflowsystems.com/equipment/bulk-bag-fillers/) - [Model AV Bulk Bag Filler](http://http://www.spiroflowsystems.com/equipment/bulk-bag-fillers/) - 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[Switching to Bulk Bags](http://www.spiroflowsystems.com) - [principles-of-filling](http://www.spiroflowsystems.com) - [articles-selecting-1](http://www.spiroflowsystems.com) - [articles-selecting-2](http://www.spiroflowsystems.com) - [articles-transportation](http://www.spiroflowsystems.com/blog/bulk-bag-handling-transportation-and-storage/) - [Case Studies](http://www.spiroflowsystems.com/case-studies/) - [case-studies-flexible\_conveyor\_snack\_food](http://www.spiroflowsystems.com/uploads/files/case-studies/1015-Flexible-Screw-Conveyor-Bag-Dump-Station-Snack-Food-Flavorings.pdf) - [Bulk Bag Discharging | Cost Savings](http://www.spiroflowsystems.com/case-studies/) - [Bulk Bag Filling | Cut Costs](http://www.spiroflowsystems.com/blog/bulk-bag-filling-saves-money/) - [Bulk Bag Filling | Multiple Packages](http://www.spiroflowsystems.com/case-studies/) - [Bulk Bag Filling | Box Filling | Automated](http://www.spiroflowsystems.com/case-studies/) - [Bulk Bag Filling | Automation](http://www.spiroflowsystems.com/case-studies/) - [Bulk Bag Filling | Bulk Bag Discharging | Stability | Dust Free](http://www.spiroflowsystems.com/case-studies/) - [Bulk Bag Discharging | Batching | Dust Free](http://www.spiroflowsystems.com/case-studies/) - [Bulk Bag Filling | Tall Bulk Bags](http://www.spiroflowsystems.com/case-studies/) - [Bulk Bag Conditioning | Bag Squeezer](http://www.spiroflowsystems.com/blog/bulk-bag-conditioning/) - [Bulk Bag Filling | Densification | Weighing Accuracy](http://www.spiroflowsystems.com/case-studies/) - [Bulk Bag Filling | Bulk Bag Discharging | Multiple Packages](http://www.spiroflowsystems.com/case-studies/) - [Bulk Bag Filling | Dusty Packaging](http://www.spiroflowsystems.com/case-studies/) - [Bulk Bag Filling | Food Grade](http://www.spiroflowsystems.com/case-studies/) - [Bulk Bag Discharging | Bulk Bag Unloading | Porthole Bags](http://www.spiroflowsystems.com/case-studies/) - [Contact Us](http://www.spiroflowsystems.com/contact/) - [Bulk Bag Filling | Contact Us](http://www.spiroflowsystems.com/equipment/bulk-bag-fillers/inquiries.cfm) - [Bulk Bag Discharging | Contact Us](http://www.spiroflowsystems.com/equipment/bulk-bag-dischargers/inquiries.cfm) - [Bulk Bag Filling and Discharging | Contact Us](http://www.spiroflowsystems.com/contact/) - [What Is Bulk Bag Handling Optimization](http://www.spiroflowsystems.com/contact/) - [Spare Parts | Contact Us](http://www.spiroflowsystems.com/parts-and-services/other-replacement-parts/) - [Service Request | Contact Us](http://www.spiroflowsystems.com/contact/) - [General | Contact Us](http://www.spiroflowsystems.com/contact/) - [Blog](http://www.spiroflowsystems.com/blog) - [Online Store](http://www.spiroflowsystems.com/parts-and-services/) ## [Comparing Bulk Bag Unloaders](https://academy.spiroflow.com/resource-hub/blog/comparing-bulk-bag-unloaders) Posted by James Podevyn on Mon, Mar, 19, 2018 @ 06:03 AM - [Tweet](https://twitter.com/share) 0 Comments [Click here to read/write comments](https://academy.spiroflow.com/resource-hub/blog/comparing-bulk-bag-unloaders#comments-listing) Topics: [bulk bags](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bags), [bulk bag unloader](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-unloader), [bulk bag discharger](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-discharger), [Bulk Bag Dischargers](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-dischargers), [dischargin bulk bags](https://academy.spiroflow.com/resource-hub/blog/topic/dischargin-bulk-bags), [discharger](https://academy.spiroflow.com/resource-hub/blog/topic/discharger), [unloader](https://academy.spiroflow.com/resource-hub/blog/topic/unloader) ## [Finding the Best Bulk Bag Unloader for Your Application](https://academy.spiroflow.com/resource-hub/blog/finding-best-bulk-unloader-for-your-application) Posted by Deron Seibert on Mon, May, 01, 2017 @ 14:05 PM - [Tweet](https://twitter.com/share) 0 Comments [Click here to read/write comments](https://academy.spiroflow.com/resource-hub/blog/finding-best-bulk-unloader-for-your-application#comments-listing) Topics: [bulk bag discharger](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-discharger), [big bag discharger](https://academy.spiroflow.com/resource-hub/blog/topic/big-bag-discharger), [big bag unloading systems](https://academy.spiroflow.com/resource-hub/blog/topic/big-bag-unloading-systems), [Bulk Bag Dischargers](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-dischargers), [bulk bag unloading station](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-unloading-station), [super sack unloading system](https://academy.spiroflow.com/resource-hub/blog/topic/super-sack-unloading-system), [big bag handling equipment](https://academy.spiroflow.com/resource-hub/blog/topic/big-bag-handling-equipment), [big bag unloader](https://academy.spiroflow.com/resource-hub/blog/topic/big-bag-unloader), [bulk bag unloading system](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-unloading-system), [super sack unloader](https://academy.spiroflow.com/resource-hub/blog/topic/super-sack-unloader), [super sack unloading station](https://academy.spiroflow.com/resource-hub/blog/topic/super-sack-unloading-station) ## [What are the Causes of Bulk Bag Dusting?](https://academy.spiroflow.com/resource-hub/blog/causes-bulk-bag-dusting) Posted by Don Mackrill on Wed, Jun, 03, 2015 @ 14:06 PM - [Tweet](https://twitter.com/share) 0 Comments [Click here to read/write comments](https://academy.spiroflow.com/resource-hub/blog/causes-bulk-bag-dusting#comments-listing) Topics: [dust containment](https://academy.spiroflow.com/resource-hub/blog/topic/dust-containment), [bulk bag unloader](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-unloader), [bulk bag discharger](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-discharger), [bulk bag unloading station](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-unloading-station), [dust control](https://academy.spiroflow.com/resource-hub/blog/topic/dust-control), [dust mitigation](https://academy.spiroflow.com/resource-hub/blog/topic/dust-mitigation), [super sack unloading system](https://academy.spiroflow.com/resource-hub/blog/topic/super-sack-unloading-system), [bulk bag unloading system](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-unloading-system), [super sack unloader](https://academy.spiroflow.com/resource-hub/blog/topic/super-sack-unloader), [super sack unloading station](https://academy.spiroflow.com/resource-hub/blog/topic/super-sack-unloading-station) ## [Designing Bulk Bag Unloaders for Maximum Dust Control](https://academy.spiroflow.com/resource-hub/blog/designing-bulk-bag-unloaders-maximum-dust-control) Posted by Don Mackrill on Wed, May, 13, 2015 @ 09:05 AM - [Tweet](https://twitter.com/share) 0 Comments [Click here to read/write comments](https://academy.spiroflow.com/resource-hub/blog/designing-bulk-bag-unloaders-maximum-dust-control#comments-listing) Topics: [dust containment](https://academy.spiroflow.com/resource-hub/blog/topic/dust-containment), [bulk bag unloader](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-unloader), [bulk bag discharger](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-discharger), [big bag discharger](https://academy.spiroflow.com/resource-hub/blog/topic/big-bag-discharger), [bulk bag unloading station](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-unloading-station), [dust control](https://academy.spiroflow.com/resource-hub/blog/topic/dust-control), [super sack unloading system](https://academy.spiroflow.com/resource-hub/blog/topic/super-sack-unloading-system), [bulk bag unloading system](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-unloading-system), [super sack unloader](https://academy.spiroflow.com/resource-hub/blog/topic/super-sack-unloader), [super sack unloading station](https://academy.spiroflow.com/resource-hub/blog/topic/super-sack-unloading-station) ## [Automated Bulk Bag Filling Streamlines Peanut Processing](https://academy.spiroflow.com/resource-hub/blog/bulk-bag-filling-streamlines-peanut-processing) Posted by Carolynn Sarver on Tue, Jul, 22, 2014 @ 10:07 AM - [Tweet](https://twitter.com/share) 0 Comments [Click here to read/write comments](https://academy.spiroflow.com/resource-hub/blog/bulk-bag-filling-streamlines-peanut-processing#comments-listing) Topics: [bulk bag discharger](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-discharger), [bulk bag fillers](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-fillers), [super sack loading equipment](https://academy.spiroflow.com/resource-hub/blog/topic/super-sack-loading-equipment), [bullk bag filling](https://academy.spiroflow.com/resource-hub/blog/topic/bullk-bag-filling), [super sack unloader](https://academy.spiroflow.com/resource-hub/blog/topic/super-sack-unloader) ## [Test Center Paves Way for New Powder Handling Solutions](https://academy.spiroflow.com/resource-hub/blog/test-center-paves-way-new-powder-handling-solutions) Posted by Carolynn Sarver on Fri, May, 02, 2014 @ 17:05 PM - [Tweet](https://twitter.com/share) 0 Comments [Click here to read/write comments](https://academy.spiroflow.com/resource-hub/blog/test-center-paves-way-new-powder-handling-solutions#comments-listing) Topics: [bulk bag unloader](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-unloader), [bulk bag discharger](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-discharger), [bulk bag unloading station](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-unloading-station), [super sack unloading system](https://academy.spiroflow.com/resource-hub/blog/topic/super-sack-unloading-system), [bulk bag unloading system](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-unloading-system), [News](https://academy.spiroflow.com/resource-hub/blog/topic/news), [super sack unloader](https://academy.spiroflow.com/resource-hub/blog/topic/super-sack-unloader), [super sack unloading station](https://academy.spiroflow.com/resource-hub/blog/topic/super-sack-unloading-station) ## [Powder Handling Solution Nicely Handles Cement Powder](https://academy.spiroflow.com/resource-hub/blog/powder-handling-solution-handles-cement-powder) Posted by Carolynn Sarver on Mon, Feb, 10, 2014 @ 19:02 PM - [Tweet](https://twitter.com/share) 0 Comments [Click here to read/write comments](https://academy.spiroflow.com/resource-hub/blog/powder-handling-solution-handles-cement-powder#comments-listing) Topics: [bulk bag unloader](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-unloader), [screw conveyor](https://academy.spiroflow.com/resource-hub/blog/topic/screw-conveyor), [auger conveyor](https://academy.spiroflow.com/resource-hub/blog/topic/auger-conveyor), [bulk bag discharger](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-discharger), [flexible screw conveyor](https://academy.spiroflow.com/resource-hub/blog/topic/flexible-screw-conveyor), [Bulk Material Handling](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-material-handling), [super sack unloading system](https://academy.spiroflow.com/resource-hub/blog/topic/super-sack-unloading-system), [aero mechanical conveyor](https://academy.spiroflow.com/resource-hub/blog/topic/aero-mechanical-conveyor), [super sack unloader](https://academy.spiroflow.com/resource-hub/blog/topic/super-sack-unloader) ## [Bulk Bag Unloaders: What are your choices?](https://academy.spiroflow.com/resource-hub/blog/bulk-bag-unloaders-choices) Posted by Carolynn Sarver on Tue, Nov, 26, 2013 @ 10:11 AM - [Tweet](https://twitter.com/share)     0 Comments [Click here to read/write comments](https://academy.spiroflow.com/resource-hub/blog/bulk-bag-unloaders-choices#comments-listing) Topics: [bulk bag unloader](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-unloader), [bulk bag discharger](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-discharger), [big bag discharger](https://academy.spiroflow.com/resource-hub/blog/topic/big-bag-discharger), [Bulk Bag Dischargers](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-dischargers), [bulk bag unloading station](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-unloading-station), [super sack unloading system](https://academy.spiroflow.com/resource-hub/blog/topic/super-sack-unloading-system), [bulk bag unloading system](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-unloading-system), [super sack unloader](https://academy.spiroflow.com/resource-hub/blog/topic/super-sack-unloader), [super sack unloading station](https://academy.spiroflow.com/resource-hub/blog/topic/super-sack-unloading-station) ## [Loose Bulk Bag Liners and Dry Bulk Ingredient Flow Problems](https://academy.spiroflow.com/resource-hub/blog/bid/22122/Loose-Bulk-Bag-Liners-and-Dry-Bulk-Ingredient-Flow-Problems) Posted by Don Mackrill on Mon, Jun, 06, 2011 @ 08:06 AM - [Tweet](https://twitter.com/share) ![Control and Metering bulk bag liner tensioner](https://academy.spiroflow.com/hs-fs/file-14213216-jpg/images/clutch_forklift_3.jpg)Do you receive ingredient in bulk bags with loose liners?  Do you have problems getting the ingredient to flow from the bulk bag?  Here's some tips on how to overcome bulk bag discharging flow problems. #### Focus on how the bags are filled.   Flow problems often are the result of the bulk bag liner not being inflated prior to filling.  If this crucial step is not taken, the liner can fold over itself in the bottom of the bag.  If that happens and a ton of ingredient is filled into the bag on top of the folds, flow problems are sure to occur. The only way to prevent this is to properly inflate the liner just prior to filling so that it takes the shape of the bulk bag without folding over on itself.  Talk to your supplier or, if you fill bulk bags for in-house or intra-company use, take a close look at your bulk bag filling equipment and standard operating procedures. #### Optmize liner handling during discharge.   Liner tensioners are devices that wind up loose liners during discharge to prevent them from 'growing' too far out of the bottom of the bulk bag and becoming entangled in downstream equipment.  They also improve product flow and ensure that all of the ingredient is discharged from the liner thereby providing 100% yield. Using one of a number of different styles of liner tensioner can prevent flow problems from bulk bags with loose liners. - **Hold in place**.  The simplest type of liner tensioner simply holds the liner in place to prevent it from completely exiting the bottom of the bag during discharge.  Make sure that there is sufficient space between the bottom of the bag and the downstream equipment so that when the liner grows out of the bag during dicsharger it doesn't become entangled in downstream equipment.  Also note that this style tensioner does not pull up on the liner and therefore does not do an effective job of ensuring complete discharge. - **Partial wind up**.  A pneumatically actuated tensioner winds up a predetermined amount of the liner during discharge - say 24" - 36".  This reduces or eliminates liner growth out of the bag bottom and ensures complete discharge. - **Complete wind up** (see photo above).  If you use a discharger that clamps the liner outlet you must use a tensioner that continuously winds the liner.  Otherwise, the liner will gather at the clamp and almost always prohibit ingredient flow.  This type of discharger and tensioner are typically used when dust containment is critical. 1 Comment [Click here to read/write comments](https://academy.spiroflow.com/resource-hub/blog/bid/22122/Loose-Bulk-Bag-Liners-and-Dry-Bulk-Ingredient-Flow-Problems#comments-listing) Topics: [bulk bag](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag), [bulk bag discharging](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-discharging), [loose bulk bag liners](https://academy.spiroflow.com/resource-hub/blog/topic/loose-bulk-bag-liners), [bulk bag discharger](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-discharger), [bulk bag liners](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-liners) ## [Training - Critical To Bulk Bag Discharging Success](https://academy.spiroflow.com/resource-hub/blog/bid/25640/training-critical-to-bulk-bag-discharging-success) Posted by Don Mackrill on Thu, Sep, 10, 2009 @ 13:09 PM - [Tweet](https://twitter.com/share) View [this content](http://www.spiroflowsystems.com/uploads/files/literature/technical/Training-Critical-to-Bulk-Bag-Discharging-Success.pdf) on Spiroflow's main website.     0 Comments [Click here to read/write comments](https://academy.spiroflow.com/resource-hub/blog/bid/25640/training-critical-to-bulk-bag-discharging-success#comments-listing) Topics: [dust containment](https://academy.spiroflow.com/resource-hub/blog/topic/dust-containment), [operator training](https://academy.spiroflow.com/resource-hub/blog/topic/operator-training), [bulk bag](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag), [bulk bag discharging](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-discharging), [bulk bag handling](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-handling), [bulk bags](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bags), [bulk bag unloader](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-unloader), [bulk bag unloading](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-unloading), [fibc](https://academy.spiroflow.com/resource-hub/blog/topic/fibc), [fibcs](https://academy.spiroflow.com/resource-hub/blog/topic/fibcs), [bulk bag discharger](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-discharger) [All posts](https://academy.spiroflow.com/resource-hub/blog/all) [Next](https://academy.spiroflow.com/resource-hub/blog/topic/bulk-bag-discharger/page/2) ### Subscribe by Email ### Most Popular Posts ### Latest Posts ### ![latest post top](https://academy.spiroflow.com/Portals/41946/images/browse_by_tag.png) - 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