Equipped with gain in weight scale system and digital weight indicator, Bulk Bag Filling System allows bulk bag to be filled accurately to programmed set weight. Unit includes conveying system, adjustable height frame, bag inflation system with air amplifier, pneumatically actuated bag strap release system, and stainless steel product contact surfaces. With variable control feature, stainless steel orifice gate allows for full open/full closed and dribble flow control positions.