In the packaging sector of ultra-fine powders such as milk powder, protein powder and nutritional meal replacement powder, excessive dust emission, unstable metering and difficult control of residual oxygen content have long been core pain points troubling manufacturers. As a professional milk powder packaging machine manufacturer with 27 years of experience in the packaging industry, Marchi Packaging relies on the coordinated layout of two manufacturing bases, namely Guangzhou Marchi Packaging Equipment Co., Ltd. and Hefei Marchi Packaging Equipment Co., Ltd., to continuously deliver highly adaptable nitrogen-flushed bagged milk powder packaging machines and post-process automation solutions for the dairy and nutritional food industries. Recently, the stable performance of its flagship MC7300B vertical filling packaging unit in multiple milk powder projects has once again verified the technical strength of this original equipment manufacturer in the field of powder packaging.
I. Coverage of Multiple Powder Materials with Outstanding Scenario Adaptability
Whether it is infant formula milk powder, modified milk powder for middle-aged and elderly people, whey protein powder, soybean milk powder, meal replacement powder, dietary fiber powder, probiotic powder, matcha powder, coffee powder, cocoa powder, as well as pharmaceutical powders and premixes, all ultra-fine powders featuring poor flowability and high dust generation can realize clean metering packaging through solutions provided by this milk powder powder packaging machine manufacturer. The nitrogen-flushed bagged milk powder packaging machine is especially suitable for end users with stringent requirements on residual oxygen content, such as large-bag packaging at the front end of canning lines, secondary packaging for stick pack lines, and finished product packaging of stand-up pouches and back-sealed bags directly supplied to end consumers. Its application scenarios cover dairy factories, special dietary food workshops, GMP clean workshops for health food and professional contract manufacturers.
II. Core Model and Configuration Selection to Solve Dust Generation During Filling
As a mature matched unit recommended by the milk powder packaging machine manufacturer, the MC7300B unit consists of a high-precision vertical screw metering machine and a 7300B vertical filling packaging machine. The whole system is specially designed for ultra-fine powders prone to heavy dust emission and achieves stable feeding via servo-driven screw metering. In terms of core configurations, this nitrogen-flushed bagged milk powder packaging machine is standardly equipped with an advanced material level control system to maintain a constant material height inside the silo and reduce density fluctuations caused by changes in material pressure. Optional static elimination devices and dust suction & collection devices can be added to form a slightly negative pressure environment at the filling port so as to suppress dust overflow at the source. The nitrogen flushing function adopts a multi-stage displacement structure; food-grade nitrogen is continuously injected during bag making to control the residual oxygen content inside bags at an extremely low level and effectively extend the shelf life of milk powder and other products.
III. Packaging Process: Fully Automatic Full-Line Operation from Metering to Palletizing
The whole process starts with automatic material lifting into the feeding silo. The screw metering machine rapidly fills materials into prefabricated films inside the bag maker according to preset weights; the film is simultaneously shaped and longitudinally sealed. Afterwards, a nitrogen injection pipe extends into the bag for gas displacement, followed by transverse sealing, cutting and discharge of finished bags. Coding equipment prints production dates and batch numbers synchronously during the sealing process. After sorting and arranging, finished bags sequentially go through automatic case erection, robotic picking and case packing, case sealing, labeling, weight inspection and unqualified product rejection procedures. Finally, palletizing robots stack qualified cartons onto pallets. The whole process operates seamlessly without interruption, forming a closed loop from raw material feeding to pallet warehousing with the complete solution supplied by the milk powder powder packaging machine manufacturer.
IV. List of Key Parameters
This nitrogen-flushed bagged milk powder packaging machine supports bag sizes (Length × Width) ranging from (50～460) mm × (120～350) mm, compatible with various bag types including pillow bags, gusseted bags, holed bags, hand-held bags and box-style bags to meet differentiated market demands for display and portability. The metering range covers 500 g to 5000 g with stable metering accuracy of ±0.2%～0.5% and a packaging speed of 10～50 bags per minute. The machine occupies compact floor space, enables convenient specification replacement and boasts strong adaptability to packaging materials, helping lower the packaging cost per bag.
V. Solutions to Customer Pain Points
Dust leakage and cleaning difficulties: The sealed filling channel combined with dust suction and static elimination devices greatly reduces material flying; key components can be quickly disassembled with a dead-angle-free design for convenient daily cleaning, adapting to production environments with frequent formula switching.
Insufficient metering stability: Servo-driven screw metering paired with real-time material level control effectively compensates for material density variations, maintaining high precision even for moisture-prone materials containing lactose and desalted whey powder.
Challenges in residual oxygen control: The nitrogen-flushed bagged milk powder packaging machine adopts full-process nitrogen protection with multi-channel nitrogen purging and secondary displacement before sealing, ensuring residual oxygen indicators comply with process requirements for long-shelf-life products.
High reliance on manual labor in post-processing: Guangzhou Marchi Packaging Equipment Co., Ltd. and Hefei Marchi Packaging Equipment Co., Ltd. can design flexible post-processing lines from case packing to palletizing according to customers’ production capacity requirements, reducing manual handling intensity and improving the operation rhythm of the whole production line.
Time-consuming switching between multiple specifications: Formula memory and modular former design enable quick adjustments for specification conversion, supporting both small-batch customized production and large-scale continuous manufacturing.
VI. Full-Line Advantages of the Original Equipment Manufacturer
As an integrated R&D, manufacturing and service-oriented milk powder packaging machine manufacturer with 27 years of industrial experience, Marchi’s two bases in Guangzhou and Hefei can rapidly respond to customer demands in different regions and provide turnkey projects ranging from standalone machines to complete production lines. This dual-base layout not only guarantees delivery efficiency but also facilitates pre-sales testing and process verification. For milk powder manufacturers pursuing one-time commissioning and stable delivery, selecting an experienced milk powder powder packaging machine manufacturer undoubtedly delivers dual guarantees for product quality and production launch efficiency.
Marchi Service Cases
Marchi Packaging Equipment Factory 27 years of packaging machinery industry experience Over 5,000 cooperative customer projects Products exported to more than 50 countries Long-term supplier to Fortune Global 500 enterprises Supports turnkey factory design and non-standard customization Capable of packaging powder, granule, liquid and other materials Has established cooperation with numerous large-scale food, pharmaceutical and chemical enterprises!
Food Industry: PepsiCo, Yili, Uni-President, TUSTIN, By-health, NSH Group, Wugu Mofang, Yanufarm, SEAMILD, Qiandao Bee Garden, Sanjiu Group, Puratos, Guangxi State Farms Mingyang Starch, Dong-E E-Jiao, Wens Group, Amway, etc.
Pharmaceutical Industry: Tianjin Hongri, Weigao Group, Dong-E E-Jiao, Xiuzheng Pharmaceutical, Yibai Pharmaceutical, Lukang Pharmaceutical, Taihang Pharmaceutical, Naisikang, Jinkun, Hubei Gongtong Pharmaceutical, Fuhe Group, Infinitus, Zhejiang Medicine, Zhejiang Guobang Pharmaceutical, etc.
Veterinary Medicine Industry: Longxiang Pharmaceutical, Jizhong Pharmaceutical, China Animal Husbandry Industry Co., Ltd., Chengbixin, Houyi Group, Ramical, Twins Group, Yuehai Group, Haid Group, Wens Group, Zhenbang Group, etc.
Food Additive Industry: Star Lake Bioscience, Xintuoyang Biotechnology, Mu'en Biotechnology, Yinong, Puratos, Sanjiu Group, Ajinomoto, Meihua Group, Chenguang Biotech, Rhein Biotech, Jinhe Biotechnology
Chemical & Daily Chemical Industry: Liby, P&G, Yongxin Chemical, Shengtai Chemical Technology, Guangdong Hekang, Foster, Sanrun, Sany Group, new energy, new materials, mineral processing, chemical industries and other sectors
