Poggi big bag dischargers (also known as bulk bag unloaders) are designed to facilitate the opening, containment, and controlled transfer of bulk materials contained in sacks and big bags. Made of carbon steel for structural stability and long service life, they are robust, compact, and versatile, easily integrating into plants where a regular feed of materials such as cement, lime, technical powders, or granules is required.
Available in various configurations, with electric or diesel motors, they are fully compatible with screw conveyors, belt conveyors, weighing, and dosing systems. The internal structure is designed to ensure complete bag emptying (big bag discharge) and maintain a constant, controlled flow to downstream systems.
The compact, modular design allows rapid installation even in tight spaces, facilitating loading, opening, and maintenance operations. Big bag dischargers can be equipped with lump breakers, vibrators, level sensors, dust covers, and lifting systems, adapting to diverse operational and environmental conditions. They are easy to move thanks to built-in lifting points; a standard forklift is sufficient, without the need for special equipment.
Poggi offers a complete range to meet every need: in addition to automated systems, manual-load bag breakers are also available, ideal for small sites or plants requiring simple and effective solutions. These models provide operational safety and ease of use and can be fully customized in color and branding for seamless integration with the company’s visual identity.
> Durable structure, designed to ensure stability even during repeated operations
> Reinforced support platform, containment grid, and integrated central blade ensure effective and safe bag breaking, allowing complete emptying without manual intervention
> Compatible with automatic extraction systems: screw conveyors, hoppers, belts, and dosing plants
> Suitable for dusty, granular, or lightweight materials across various industrial sectors
> Front-mounted integrated control panel, easily accessible, with optional remote control > Installed on telescopic legs to optimize transport procedures
> Customizable with optional accessories such as covers, sensors, dust protection systems, and safety devices
> Concrete batching and precast plants, for controlled transfer of cement, lime, and premixed materials during production
> Environmental and agricultural industries, for safe unloading of big bags containing compost, fertilizers, powders, or dry by-products
> Recycling and material treatment systems, where regular feeding of bulk materials into complex plants is required
> Food industry, for opening and handling big bags containing flour, grains, seeds, or other granular materials
> Plastics, wood, and biomass industries, for containment and dosing of granules, flakes, chips, pellets, and lightweight bagged materials
In Poggi Big Bag Dischargers, every component is designed to ensure durability, reliability, and ease of use during unloading operations of bagged materials. The structure is built to withstand mechanical stress and operate efficiently even under demanding conditions.
Once positioned, the bag rests on the reinforced grid; the integrated blade cuts the bottom, allowing the material to flow out, which is then collected and conveyed to the next stages of the process. The standard configuration offers a storage capacity of 3 m³, equivalent to three bags, providing high operational autonomy and greater flexibility for the operator, who can manage the process even remotely.
The discharge hopper ensures smooth material handling, preventing blockages and minimizing residue. This results in a steady flow toward screw conveyors, belts, or dosing lines, reducing processing time and maintaining operational continuity. Integration with silos, existing plants, or handling systems makes Poggi Big Bag Dischargers a versatile and safe solution for feeding bulk materials.
They are available in three configurations: electric, diesel-powered, or manual-load.
The electric and diesel versions differ in power supply: the electric version connects to the mains, while the diesel version features a generator unit for fully autonomous operation.
The manual-load version is available in both power options and is designed for direct bag loading by the operator, ideal for applications with small material quantities.
This versatile range ensures maximum operational flexibility, even in environments without electrical supply.
The cutting blade, made of high-strength special steel, is designed to cleanly and precisely open the bottom of the big bag. Its optimized geometry allows accurate cuts on fibrous or compacted materials, enhancing the speed and efficiency of the discharge.
Different types of internal linings can be applied, selected according to the nature of the material to be handled. These linings serve a dual purpose: they protect internal surfaces from wear, abrasion, or corrosion, while also facilitating material flow toward the outlet, reducing friction and accumulation. The correct choice helps optimize operational efficiency and extend the silo’s service life.
EASY OPERATIONAL ACCESS
The open structure of the big bag discharger facilitates visual inspections, cleaning, and routine maintenance. Interventions are simple and quick, minimizing downtime.
COMPONENT MODULARITY
Wear-prone components such as the blade, grid, gaskets, or fittings are easily replaceable, thanks to a modular design aimed at simplifying technical operations and reducing management costs.
A complete range of accessories and options to customize each product. Measurement, filtration, safety, extraction, and control systems allow the silos to be adapted to specific operational requirements, ensuring maximum efficiency and continuous operation.
