With the continuous upgrading of dairy consumption, milk powder manufacturers have raised higher requirements for precision, efficiency and cleanliness in packaging procedures. As a powerful original manufacturer boasting 27 years of experience in automated packaging, Guangzhou Marchi Packaging Equipment Co., Ltd. provides fully automatic turnkey milk powder packaging solutions covering metering and filling through post-process palletizing. Marchi has served numerous well-known dairy enterprises including Yili, as well as leading food brands such as PepsiCo, Uni-President, By-health and Wugu Mofang.
I. Core Equipment Advantages: Dual Assurance of Precision and Efficiency
For the packaging demand of 10kg milk powder bags, Marchi recommends the MC5000D vertical filling packaging unit, which consists of a vertical screw metering machine and a 5000D vertical filling packaging machine integrating metering, bag forming, packaging, sealing, coding and counting functions. Servo motors directly drive screw feeding to guarantee metering speed and accuracy. For nitrogen flushing procedures, a two-step process of "vacuum pumping + nitrogen displacement" is adopted: negative pressure systems first exhaust air inside packaging bags, followed by injection of high-purity nitrogen (purity ≥99.5%). Leveraging the inert property of nitrogen to isolate oxygen, the machine effectively inhibits fat oxidation and microbial reproduction in milk powder, with residual oxygen content controlled at ≤0.3%.
Outstanding equipment strengths: Excellent sealing performance prevents dust leakage, effectively tackling difficulties in fully automatic packaging of ultra-fine powder materials; easy cleaning and convenient specification replacement to accommodate multi-variety and multi-specification production demands; high cost performance, low failure rate and convenient maintenance; compact footprint and low packaging material costs; all parts contacting materials are made of 304 stainless steel in compliance with food hygiene standards; non-standard customization is supported to tailor packaging lines according to diverse material characteristics. Within the metering range of 10～500g, the MC5000D achieves metering accuracy of ±0.5%～1% with a packaging speed of 25～80 bags per minute. It is compatible with multiple bag types including pillow bags, gusseted bags, holed bags, hand-held bags and box-style bags.
II. Extensive Application Scenarios Covering All Categories of Milk Powder and Powder Materials
Processable milk powder varieties include whole milk powder, skim milk powder, low-fat milk powder, infant formula milk powder, adult milk powder, prenatal milk powder, modified milk powder, non-dairy creamer, goat milk powder, cow milk powder, fortified nutritional milk powder, organic milk powder, high-calcium milk powder, low-sugar milk powder, iron-fortified milk powder, grass-fed milk powder and fermented milk powder. Additionally, it is applicable to protein powder, nutritional powder, meal replacement powder, probiotic powder, soybean milk powder, camel milk powder, almond powder, coconut powder, grain powder, oat powder, whey powder, rice flour, peanut powder, red date powder, corn powder, soybean powder, coconut milk powder, lactose powder, brown rice flour, black bean powder, walnut powder, apple powder, grape powder, tomato powder, wolfberry powder, pumpkin powder and other powder materials. The machine also handles wheat flour, corn flour, wheat meal, seasoning powder, curry powder, pepper powder, instant coffee powder, powdered sugar, salt powder, starch, premix powder, non-dairy creamer, solid beverages, milk tea powder, soybean milk powder, sesame paste powder, lotus root starch, sour plum powder, fruit-flavored powder, ice cream powder, bread flour, green juice powder, Orleans marinade, yeast powder and more.
III. Fully Automatic Packaging Workflow: Integrated Operation from Feeding to Palletizing
The complete 10kg milk powder packaging production line features a full automatic workflow as follows:
Feeding and mixing: Raw milk powder is manually or automatically delivered into the feeding port and evenly blended by a mixer to ensure consistency of each batch of materials.
Lifting and metering: Mixed materials are conveyed by a screw elevator to the vertical screw metering machine equipped with a servo-driven single-screw feeding structure. The screw rotates for feeding according to control signals, while weighing sensors and controllers process weight signals and output weight data. This metering method is especially suitable for precise weighing of dusty ultra-fine powders.
Bag forming and filling: The 5000D vertical filling packaging machine automatically forms bags and fills pre-metered milk powder into pouches. Equipped with an advanced material level control system, optional static elimination and dust extraction devices can be installed to effectively control dust generation.
Sealing and coding: After filling, the machine automatically heat-seals bag mouths and prints information including production date and batch numbers.
Weight inspection and metal detection: Finished packages undergo secondary inspection via a checkweigher, with out-of-tolerance products automatically rejected; packages then pass through a metal detector to ensure absence of metallic impurities.
Case erection and packing: An automatic case erector unfolds and shapes cartons; sealed milk powder bags are transported by conveyors to the packing station for automatic case loading.
Case sealing, strapping and palletizing: Cartons are automatically sealed and strapped after packing. Finished cartons are conveyed to the robotic palletizing station, where palletizing robots neatly stack cartons in preset layouts as the final procedure prior to warehousing. The entire process from feeding to palletizing and warehousing runs automatically with minimal manual intervention.
IV. Customer Pain Points and Targeted Solutions
Pain Point 1: Flying dust impairs production environment and product qualityUltra-fine powders such as milk powder tend to generate heavy dust during metering and filling, contaminating workshops, causing material waste and cross-contamination risks. Marchi Solution: The MC5000D unit adopts a sealed metering and filling structure paired with an advanced material level control system. Optional dust extraction and static elimination devices deliver superior sealing performance without dust overflow, eradicating dust problems at the source.
Pain Point 2: High risk of oxidative deteriorationRich in fat and protein, milk powder is prone to oxidation upon oxygen exposure, deteriorating product quality and shortening shelf life. Marchi Solution: Integrated nitrogen flushing function with "vacuum pumping + nitrogen displacement": air inside bags is evacuated before high-purity nitrogen injection to thoroughly isolate oxygen, controlling residual oxygen at ≤0.3% and significantly extending the shelf life of milk powder.
Pain Point 3: Unstable packaging accuracy and drastic net content fluctuationsVariations in bulk density and flowability of certain powders often lead to inaccurate metering. Marchi Solution: Servo motors directly drive screw feeding coupled with high-response real-time feedback weighing systems, achieving metering accuracy of ±0.5%～1%.
Pain Point 4: Diverse packaging specifications and frequent model changeoversEnterprises producing multiple formulas and specifications face lengthy changeover cycles with conventional equipment. Marchi Solution: Convenient specification replacement with motor-driven bag width adjustment synchronously controlled via a single button, drastically shortening changeover time.
Pain Point 5: Insufficient operational stability under long-hour continuous operationRound-the-clock high-load operation imposes stringent requirements on mechanical structures and control systems of packaging equipment. Marchi Solution: Robust mechanical structure with low failure rates supporting stable 24-hour continuous operation, one-year warranty and lifelong maintenance service.
As a reputable packaging machinery manufacturer, Guangzhou Marchi leverages 27 years of industrial experience, over 5,000 customer cases and a service network covering more than 50 exporting countries to continuously deliver one-stop packaging solutions ranging from standalone machines to full production lines for the dairy, food, pharmaceutical, chemical and other industries.
