In industries such as food, chemical industry and feed, the packaging process of powdery materials has long been faced with practical problems including high labor costs, large errors caused by manual operation and unstable packaging quality. As key equipment to solve the above problems, powder nitrogen-flushed packaging machines are attracting increasing attention from manufacturers. The MCZD-25F fully automatic heavy bag powder packaging unit jointly launched by Guangzhou Marchi Packaging Equipment Co., Ltd. and Hefei Marchi Packaging Equipment Co., Ltd. provides a full-process automatic packaging solution from automatic bag picking to finished product output for various powdery materials such as milk powder, food additives, chemical raw materials, veterinary powder, feed additives, seasoning powder, solid beverages, glucose, rice flour, dyestuffs, essence and spices, soybean milk powder, protein powder, premix, calcium carbonate and titanium dioxide.
Equipment Advantages: Fully Automatic Integration, High Precision and High Efficiency
Full-process unmanned operation: The equipment can realize automatic metering, automatic bag loading, automatic filling and automatic heat sealing and stitching without manual intervention in the whole process, effectively saving labor costs and reducing long-term operating investment.
Accurate and stable metering: The weighing system adopts vertical screw feeding structure, and the screw is directly driven by servo motor with fast response. The weighing sensor and controller feed back and adjust the feeding amount in real time, with packaging accuracy ≤±0.1～0.2%, effectively avoiding material waste.
Wide compatibility with various bag types: It is compatible with various materials such as kraft paper laminated bags, woven bags and plastic bags, with applicable bag length ranging from 500 to 1000 mm to meet the packaging requirements of products of different specifications.
Complete Packaging Process
The operation flow of MCZD-25F covers the complete chain from bag picking to finished product output, with specific steps as follows:
Automatic bag picking and sorting: The equipment automatically takes packaging bags from the bag storage bin, and completes centering and positioning of bags through the bag picking and sorting device.
Bag mouth pretreatment: Bags are conveyed forward to the bag mouth positioning station for pre-opening operation to prepare for subsequent bag loading.
Manipulator bag loading: The cutter of the bag loading manipulator is accurately inserted into the bag mouth, and pneumatic grippers on both sides clamp the two sides of the bag mouth to complete fast and stable bag loading.
Precise filling: After the bag clamping and discharging device is in place, the vertical screw rotates to feed materials according to control signals, and the weighing system monitors the weight in real time to ensure consistent metering of each bag.
Vacuum & Nitrogen Flush (Optional):For easily oxidized materials, oxygen inside the bags can be extracted after filling, and then high-purity nitrogen is filled to effectively delay product oxidation and deterioration.
Heat sealing: The bag pushing device cooperates with the bag mouth guiding device to complete heat sealing and stitching with neat and firm sealing.
Rear-end connection and palletizing: Finished products are output through conveyor belts, which can be connected with weight sorters and metal detectors for online inspection. Finally, palletizers automatically stack products neatly for convenient storage and transportation.
Targeted Solutions for Customer Pain Points
Enterprises often encounter the following problems in the actual production of powder packaging, and Marchi MCZD-25F provides targeted countermeasures:
Low efficiency and large errors of manual bag loading: The fully automatic bag loading manipulator replaces manual work, and the whole process of bag picking, positioning and bag loading is automated with stable speed and high repeated precision, greatly reducing human errors.
Powder is easy to oxidize, agglomerate and deteriorate: The unit can integrate vacuum pumping and nitrogen flushing system to accurately control the gas replacement process, effectively reduce the residual oxygen content inside packages, and maintain material activity and flavor.
Inaccurate metering leading to raw material waste: Servo-driven screw matched with high-precision weighing sensor realizes real-time closed-loop control to ensure extremely small weight deviation of each bag and save production costs.
Frequent replacement of packaging materials leading to long machine adjustment time: The equipment is equipped with quick adjustment mechanisms, which can flexibly adapt to various bag types such as kraft paper laminated bags, woven bags and plastic bags, reducing downtime for production changeover.
Relying on 27 years of experience in the packaging machinery industry, Guangzhou Marchi has served numerous manufacturers around the world, and can provide full-cycle services including scheme design, equipment selection, installation and commissioning, after-sales maintenance, helping customers realize intelligent upgrading of packaging links.
