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NBE Bulk Bag Filling System is Engineered to Improve Operator Interaction

Reduces material waste and increases package throughput

National Bulk Equipment Bulk Bag Filling

The NBE bulk material packaging system handles bulk raw materials that are highly abrasive, fine, and dusty. To improve operator-equipment interaction the filler has a cantilevered bulk bag support framework, eliminating vertical frame obstructions that impede operator accessibility. The cantilevered bag support framework has a bag-load capacity of 4,000 lb.

To further improve operator safety and ergonomics, the cantilevered bulk bag support framework has NBE automatic, traversing rear bag loop hangers and an NBE automatic, traversing fillhead. The pneumatically actuated traversing rear bag loop hangers bring the rear bag loop hangers forward to well within operator reach. The operator can hang the bag loops without awkward over-reaching into equipment. A one-button operation returns the loop hangers to their rear position. The traversing fillhead also functions by pneumatic action to position the fillhead forward toward the operator. The operator can easily access the full radius of the fillspout to ensure a fully sealed spout connection to the fillhead. A one-button operation returns the fillhead back to the machine center for optimal material flow.

To eliminate costly material waste and rework associated with overfilled or underfilled bulk bags, the bulk bag filler has an NBE base-weigh scale system engineered into the framework. The isolation-mount design of the scale system protects the weigh devices from damage and contamination. To ensure reliable and repeatable fill accuracy, NBE automation monitors the scale system and, based on pre-set weight specifications, adjusts upstream material supply to deliver controlled material infeed and highly accurate bag filling that is accurate to within 1% of the total filled-bag weight.   

An application-specific bag densification system is built into the base of the bulk bag filling station. At pre-set intervals during the bag filling cycle, the densification base will raise to isolate the pallet and bulk bag from the conveyor deck. The densification system then initiates a vertical-motion vibratory action. This action directs 3Gs of high-speed, low-intensity vibration into the bagged material, causing air to be displaced and the material to quickly settle into a dense, evenly dispersed, flat-bottomed package, increasing total process throughput rate by reducing the cycle time per filling sequence.

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