Carolina Material Technologies
Carolina Material Technologies - Bulk Material Handling Solutions
Charlotte, NC 704-846-3737

COVID-19 Update: Open For Business

Bulk Bag Systems Case Histories
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3Sigma Bag Handling Systems
Shape-It Bulk Bag Unloaders

Bulk Bag Unloader Case History 3S-1212

A customer contacted us after reviewing our bulk bag unloaders online. Client considered Spiroflow and 3Sigma, awarding 3Sigma their contract based upon system approach and design.  We were able to offer our integrated GeoMate™ feeder, as an integral component to our unloading system to properly feed, consistently, the PVA powder to the conveyor, which delivers 99.9% to their mix tank

Customer Needs

  • Dust tight bulk bag unloading
  • Consistent feeding to allow for best mixing efficiencies
  • The feeder and conveyor had to discharge and delivery 100% of the product.  The customer checks this by weight
  • The ability to add 10# bags of minors into the system.
  • Minimize segregation
  • Sealing the mixer when not in use.


  • A Shape-It™ bulk bag unloader was provided to properly discharge the PVA powder.
  • The oversized Contain-It™ chamber completely contains any spills.  At ΒΌ” thick, this is truly industrial design.
  • The bag spout is placed within our Tube-It™ discharge tube, providing a positive seal with the bag.
  • The GeoMate™ feeder in bolted directly to the        Tube-It™, providing a very compact, integrated system.
  • The feeder operates with no moving parts, like the unloader, making the system nearly maintenance free.
Bulk Bag Unloader

Geomate™ Feeder

  • The GeoMate™ feeder discharges into a bag dump hopper, which feeds directly into the AMC conveyor. 
  • The bag dump is used to add our client’s minor adds – 10 lb. bags.
  • The hopper is connected to the AMC conveyor which discharges the material, through a slide gate valve, 28’ above grade.
  • The AMC minimizes segregation and empties 99.9% of the product.




Better By Design
Made in America
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