Bulk Bag Unloader System for Admixture

SEK Surebond called on Spec Engineering to design and integrate a bulk bag unloader system that will be tied into an existing system, originally provided by Spec. In this system, five bulk bag unloaders will discharge to create one blend. The blend is then transferred to a scale hopper to an existing small hopper over mixer through pneumatic conveying. Screw feeders are designed to feed weigh hopper.


Custom staircases and mezzanine were designed and fabricated to allow for operator access to all five bulk bag unloaders. A full package of equipment detail and layout drawings along with process flow diagrams and electrical drawings were also provided.

Spec Engineering is a Gray company.

Spec is a process engineering company, focused on best-in-class solutions for customers in the food, grain, minerals, chemicals, and pharma industries. In 2019, Spec became part of the Gray family of brands. As a Gray company, we continue to offer comprehensive expertise, catered to your scope, schedule, and budget.