Big Bag Discharge Station

The Big Bag Discharge Station (standard configuration: food/chemical grade; optional customization available: explosion-proof/sterile/high-temperature resistant) is a fully automated, closed-loop, dust-free processing equipment designed specifically for unpacking and unloading 10-50kg bags of powder, granules, and small block materials. Leveraging the company's years of experience in material conveying and fluid purification system integration, it focuses on "fully automated unpacking + closed-loop dust-free unloading + arch breaking and anti-blocking + intelligent safety interlocks." Utilizing a flange quick-installation/floor-mounted/support integrated structure, it boasts advantages such as high unpacking efficiency, dust-free and leak-free operation, low energy consumption, convenient maintenance, and ample safety redundancy. It strictly adheres to GB 12476, GB/T 19815, and ISO standards. Manufactured to 14644 and 3A hygiene standards, this product is suitable for various working conditions, including unpacking volumes of 50~2000kg/h and bag types of 25~50kg woven bags/paper bags/PE bags. It is widely used in the unpacking of bagged raw materials in industries such as food processing, biopharmaceuticals, fine chemicals, lithium battery materials, feed processing, plastic granules, and mineral powders. It completely solves the industry pain points of traditional manual unpacking, such as high dust levels, low efficiency, high labor intensity, cross-contamination, material waste, and inability to adapt to clean/explosion-proof conditions. It achieves **zero dust leakage, fully automated unpacking, and fully controllable dust-free operation**, helping companies pass various stringent certifications and environmental inspections such as GMP, explosion-proof certificates, and food hygiene and safety certifications, while significantly improving the automation level and production efficiency of the unpacking process.

As a core unpacking device for clean, explosion-proof, and dust-free production scenarios, this product focuses on the dual functions of "fully automatic dust-free unpacking + full-process safety protection." These three functions work synergistically to connect upstream and downstream equipment such as bagged raw materials, silos, tubular conveyors, dust-free feeding stations, and mixing equipment, achieving four-fold protection: no dust, no residue, no cross-contamination, and no damage to materials. It balances unpacking efficiency with operational stability, making it suitable for demanding conditions such as aseptic production, explosion-proof workshops, and fine powder processing. It meets the stringent control requirements of cleanrooms for air quality and material cleanliness.

Fully Automated, Sealed, Dust-Free Unpacking and Unloading : Adopting a fully automated design encompassing "automatic bag loading-bag cutting-unloading-waste bag collection," the entire unpacking process requires no manual intervention, significantly reducing labor intensity. The equipment features a built-in fully sealed stainless steel unpacking chamber equipped with a negative pressure dust extraction interface and a high-efficiency pulse dust removal system. This system captures dust generated during bag cutting and unloading in real time, achieving a dust removal efficiency of over 99.99%. The dust can be recycled and reused after being filtered through a filter cartridge, with a powder leakage rate of <0.01%, completely eliminating dust and material splashing in the workshop. The unpacking chamber is equipped with a liftable sealing door and double silicone rubber sealing rings, ensuring a completely sealed unpacking process. This avoids material waste and guarantees workshop air and product quality, meeting the high purity and cleanliness requirements of the food and pharmaceutical industries. Supports multiple bag types and can automatically identify 25~50kg woven bags, paper bags, and PE bags. The bag cutter is made of wear-resistant alloy material, which can cut bags accurately and without residue, avoiding material jamming and blade breakage. The discharge port is equipped with an anti-drip scraping device to clean up residual materials inside the bag, with a residue rate of ≤0.5%.

Anti-bridging and anti-clogging + intelligent dust removal + low-consumption operation and maintenance : Standard PLC online monitoring system with preset four threshold levels for differential pressure, overload, material blockage, and over-temperature. Abnormalities trigger automatic alarms and emergency shutdowns to ensure safe and stable equipment operation; The bottom of the unloading hopper adopts a conical structure + pneumatic anti-bridging device/vibration anti-bridging design to effectively prevent powder materials from bridging and blocking, ensuring smooth unloading; Built-in high-efficiency filter cartridges (HEPA high-efficiency filter media can be customized) adopt pulse back-flushing dust removal technology, eliminating the need for manual disassembly and cleaning, ensuring thorough dust removal, and extending the filter cartridge life to 1-2 years; The entire equipment adopts a quick-release buckle structure, allowing a single person to disassemble, clean, replace filter media, and remove waste bags without tools, significantly reducing operation and maintenance costs and downtime losses, and adapting to the daily maintenance needs of clean production.

Explosion-proof and sterile dual safety protection + compliant materials : Utilizing a tenon-and-mortise seal + double silicone rubber sealing ring structure, the integrated welded enclosure provides superior sealing performance. The explosion-proof model features an explosion-proof motor, anti-static enclosure, spark detection and extinguishing system, and explosion-proof dust removal system, complying with GB3836 standards and suitable for flammable and explosive dust/gas environments, eliminating the risk of dust explosions and material leaks at the source. The sterile and hygienic model is made of 316L stainless steel with a seamless polished finish, capable of withstanding CIP/SIP online cleaning and sterilization, meeting GMP and FDA hygiene requirements. All material-contacting parts meet food-grade/pharmaceutical-grade standards, possessing excellent antibacterial and antifungal properties, with an antibacterial rate ≥99.99% and an antifungal level of 0. Additional features include overload protection, an emergency stop button, an anti-jamming sensor, and a waste bag full alarm to prevent abnormal equipment damage and personnel safety hazards, ensuring long-term safe and stable operation of the equipment.

1. Fully automated and highly efficient, significantly improving production efficiency.

This equipment integrates automatic bag loading, automatic bag cutting, automatic unloading, and automatic waste bag collection, achieving a bag unpacking efficiency of 50~2000 kg/h, which is 5~10 times that of manual bag unpacking. It is suitable for the rapid unpacking needs of large-volume bagged raw materials. The equipment operates stably with a low failure rate and supports 24-hour continuous operation, significantly improving the overall production line capacity while reducing labor costs and labor intensity. It is suitable for the large-scale production needs of industries such as food, chemical, and lithium battery.

2. Compact footprint, highly adaptable, and flexible installation.

With its compact, integrated design, it occupies only 40% of the space of a traditional manual unpacking station combined with dust removal equipment, making it particularly suitable for space-constrained scenarios such as cleanrooms, small workshops, and areas with dense equipment. It can flexibly adapt to various types of bagged materials weighing from 25 to 50 kg, and supports seamless connection with dust-free feeding stations, tubular chain conveyors, silos, and mixing equipment. The flange interface complies with GB/T 9113 standards, eliminating the need for large-scale modifications to the factory layout. It adapts to the process requirements of various workshops, enabling integrated dust-free operations of unpacking, feeding, and conveying.

3. Modular customization, covering all material types and adaptable to various working conditions.

We can flexibly customize the unpacking volume, arch breaking method, dust removal level, material, and waste bag collection method according to the characteristics of customer materials and working conditions. Materials include 304 stainless steel, 316L stainless steel, and carbon steel with anti-corrosion coating. Among them, 316L stainless steel can meet the harsh sterile/corrosion-resistant working conditions. For sticky powders, we can choose non-stick coated chambers; for abrasives, we can choose wear-resistant linings; and for ultrafine powders, we can upgrade to a HEPA high-efficiency dust removal system. From ultrafine powders (such as pharmaceutical powders and lithium battery cathode materials) to small particles (such as plastic particles and nuts), from room temperature to high temperature, and from ordinary working conditions to explosion-proof/sterile conditions, we provide full coverage and adaptability to meet the personalized unpacking needs of different industries.

4. Low energy consumption and low noise, resulting in outstanding economic efficiency in operation.

The optimized pulse dust removal system and energy-saving motor design result in energy consumption that is more than 25% lower than traditional unpacking and dust removal combination equipment. The pulse back-flushing cleaning technology requires no additional power and is driven purely by airflow, further reducing energy consumption. The sealed housing structure effectively isolates operating noise, with operating noise ≤60dB(A) (floor-standing model), far below the workshop noise standard, creating a quiet production environment. The lifespan of vulnerable parts such as filter cartridges, sealing rings, and pack cutters is clearly defined, and the replacement cycle can be precisely controlled through online monitoring, reducing downtime and consumable procurement costs. At the same time, the low material residue rate reduces material waste, improves resource utilization, and demonstrates outstanding long-term economic efficiency.

5. Materials are compliant, testing is complete, and certification is worry-free.

Components in contact with materials can be made of 316L food-grade/pharmaceutical-grade stainless steel, meeting 3A hygiene standards and relevant requirements for food and pharmaceutical production; explosion-proof components have all passed GB3836 third-party testing and certification, and the dust removal system meets environmental emission standards; each unit undergoes no-load/load test operation, sealing leakage test, unpacking efficiency test, dust removal efficiency test, and safety interlock function test before leaving the factory, and relevant test reports on material resistance to chemical reagents, antibacterial properties, and antifungal properties can be provided; third-party test reports, material certificates (MTC), explosion-proof certificates, and hygiene certification reports can be provided, fully complying with various stringent certification requirements and helping companies successfully pass environmental and hygiene inspections.

Shanghai Hanye Engineering Technology Co., Ltd. specializes in material handling and fluid safety, focusing on addressing the pain points of unpacking bagged materials in clean, explosion-proof, and dust-free environments. With a core philosophy of "fully automated and efficient, leak-proof, safe and reliable, and low-cost operation and maintenance," and combined with the stringent standards of the food and pharmaceutical industries, we provide customers with highly adaptable Big Bag Discharge Stations and related system solutions. For detailed parameters, operating condition adaptation selection, unpacking volume calculations, or on-site case studies, please feel free to contact us!