Granule Packing Machines | 40–80 BPM, Anti-Bridging Design

Granule packaging presents specific challenges distinct from powder or liquid filling, and ECHO Machinery has developed specialized solutions based on extensive field experience across diverse granule applications. The primary challenge is product flow consistency: granules can bridge across openings, flow at variable rates depending on moisture content, and generate static charges that cause particles to stick to film surfaces. ECHO addresses these through a combination of mechanical and electrical design features. The forming tube incorporates a polished internal surface with a taper angle calculated for the granule's angle of repose, preventing the arching that causes flow interruption. For static-prone granules like plastic pellets, ionizing bars positioned along the film path neutralize surface charges before the film reaches the seal area. The vibratory settling system uses amplitude-adjustable oscillation to compact product within the bag, eliminating air pockets that reduce bag count per case. For products requiring inert atmosphere packaging, nitrogen flushing ports integrated into the forming tube achieve residual oxygen levels suitable for shelf-life extension of oxygen-sensitive granules.