In the packaging field of fine chemical powders such as hot melt adhesive powder, EVA powder and adhesive powder, problems including insufficient packaging accuracy, dust emission and low packaging efficiency have long troubled many manufacturing enterprises. As an original powerful manufacturer with 26 years of experience in the packaging machinery industry, Guangzhou Marchi Packaging Equipment Co., Ltd. continues to deeply develop powder packaging technology. Its semi-automatic 25kg bottom-filling packaging machine adopts bottom-filling technology to provide a one-stop solution for the packaging of hot melt adhesive powder, EVA powder and adhesive powder.
I. Equipment Advantages: Solve Powder Packaging Problems from the Source
Targeting the material characteristics of hot melt adhesive powder, EVA powder, adhesive powder and polymer rubber powder, Marchi semi-automatic bottom-filling packaging machine has achieved a number of technological breakthroughs in dust control and packaging accuracy.
Bottom-filling design effectively controls dust emission.
Adopting lifting type bottom filling design, the filling device extends directly into the bottom of the packaging bag for filling. The powder accumulates evenly upward from the bag bottom and exhausts air naturally, greatly reducing dust emission caused by material falling impact. It is especially suitable for ultra-fine powders prone to dusting, such as hot melt adhesive powder, EVA powder, pharmaceutical raw material powder, lithium battery materials (ternary material, lithium cobalt oxide, lithium iron phosphate), dyes, carbon powder and premix materials.
High-precision weighing system ensures consistent packaging quality.
The pneumatic bag clamping device and bracket are directly installed on the weight sensor. Combined with a fast-response weighing system, it implements two-stage feeding control of fast filling and slow precise feeding according to preset weight. The packaging weight ranges from 5 to 25kg with packaging accuracy of ±0.1%～0.5%, suitable for powder and small particle materials with high precision requirements, uneven density and large fluidity difference.
Convenient cleaning and flexible production changeover.
The all-stainless steel structure is matched with combined or open transparent material tank design, allowing disassembly and cleaning without tools, suitable for switching packaging of various materials such as hot melt adhesive powder, EVA powder and adhesive powder. PLC control cooperates with touch screen human-machine interface to store up to 10 groups of formula parameters for one-key calling during production changeover, reducing manual operation errors. The conveying mode adopts servo motor and servo drive to control the screw, and replacing screw accessories can adapt to various materials from ultra-fine powder to small particles.
Key Equipment Parameters.
Packaging speed: 1～4 bags per minute
Power supply: 3P AC 208～415V 50/60Hz
Total power: 2.87kW
Overall weight: 450kg
II. Application Scenarios: Full Coverage of Multi-industry Powder Packaging
The application of Marchi semi-automatic bottom-filling packaging machine in the fields of hot melt adhesive powder and EVA powder packaging continues to expand. The products have served more than 30 provinces and cities nationwide including Shandong, Guangdong, Jiangsu, Zhejiang, Henan, Hebei, Hunan, Hubei, Sichuan, Anhui, Fujian, Jiangxi and Shaanxi, Liaoning.
In the chemical industry, the equipment is applicable to 25kg small bag packaging of hot melt adhesive powder, EVA powder, adhesive powder, polymer rubber powder, stearic acid powder, resin powder, synthetic material powder, rubber products, chemical additives, coatings and paints, dyes and pigments, catalysts and auxiliaries. In the pharmaceutical industry, it adapts to high-value materials requiring strict weight control and pollution prevention such as pharmaceutical raw materials, medicinal powder, medicinal granules, veterinary drugs, glucose, food additives and flavors and fragrances, meeting the refined packaging demands of the pharmaceutical industry. In the field of new energy materials, it can package lithium battery cathode and anode materials (ternary materials, lithium cobalt oxide, lithium iron phosphate) and silica powder. In the food and feed industry, it is suitable for packaging daily consumer goods such as starch, protein powder, non-dairy creamer, feed additives and seasoning powder.
In addition, it is also widely applied in the building materials and mining industry, capable of packaging mineral powder materials such as calcium carbonate (light calcium carbonate, heavy calcium carbonate, activated calcium carbonate), talc powder, barite powder, kaolin, titanium dioxide, limestone powder and dolomite powder.
III. Detailed Packaging Process: Full Link from Bagging to Palletizing
Taking the 25kg packaging scenario of hot melt adhesive powder and EVA powder as an example, Marchi semi-automatic bottom-filling packaging machine cooperates with post-process equipment to realize a full-process closed loop from filling to palletizing.
Step 1: Manual Assisted Bag Loading.
The operator sleeves the packaging bag of hot melt adhesive powder or EVA powder onto the pneumatic bag clamping mouth. The bag clamper is equipped with anti-pinch protection function, and automatically clamps after the sensor detects the bag is in place.
Step 2: Bottom Filling and Weighing.
The bottom-filling device extends into the bag bottom and fills in three feeding modes: low speed, medium speed and high speed. Hot melt adhesive powder or EVA powder accumulates upward from the bottom, weighing while filling to complete metering automatically.
Step 3: Automatic Degassing or Bag Pushing and Shaping.
Optional negative pressure degassing function extracts part of air from materials through degassing filter screen, making hot melt adhesive powder and EVA powder fill the bag in a compact state with larger loading capacity and regular packaging shape. After filling, the bag pushing device conveys the packed hot melt adhesive powder bag to the conveyor belt.
Step 4: Sealing and Sewing.
Packaging bags are conveyed to the automatic sealing or sewing station to complete bag mouth sealing, ensuring hot melt adhesive powder and EVA powder no leakage and moisture-proof during transportation and storage.
Step 5: Automatic Palletizing.
Sealed finished bags of hot melt adhesive powder, EVA powder and adhesive powder enter the palletizing area through the conveying line, and realize automatic stacking with manipulators or full-automatic palletizers. From manual bag loading to finished product palletizing and warehousing, the whole line is connected smoothly, greatly reducing manual labor.
IV. Marchi Service Cases
Marchi Packaging Equipment Factory owns 27 years of experience in the packaging machinery industry, more than 5,000 cooperative customer cases and exports to over 50 countries. It is a long-term supplier to Fortune Global 500 enterprises, supporting whole factory scheme design and non-standard customization. It can package powder, granule, liquid and other materials, and has cooperated with many large food, pharmaceutical and chemical enterprises.
- Food Industry: PepsiCo, Yili, Uni-President Enterprises, YumChina, Little Sheep, Tastien, By-health, Nam Soon Group, Five Grains Mill, Yan Gufang, SEAMILD, Qiandao Bee Garden, Sanjiu Group, Puratos, Guangxi Nongken Mingyang Starch, Dong'e Ejiao, Wen's Group, Amway, etc.
- Pharmaceutical Industry: Tianjin Hongri, Weigao Group, Dong'e Ejiao, Xiuzheng Pharmaceutical, Yibai Pharmaceutical, Lukang Pharmaceutical, Taihang Pharmaceutical, Niscon, Jinkun, Hubei Gongtong Pharmaceutical, Fuhe Group, Infinitus, Zhejiang Medicine, Zhejiang Guobang Pharmaceutical, etc.
- Veterinary Drug Industry: Longxiang Pharmaceutical, Jizhong Pharmaceutical, China Animal Husbandry Industry, Cheng Bixin, Houyi Group, Ramical, Twins Group, Yuehai Group, Haid Group, Wen's Group, Zhengbang Group, etc.
- Food Additive Industry: Xinghu Technology, Xintuyang Biology, Muen Biology, Yinong, Puratos, Sanjiu Group, Ajinomoto, Meihua Group, Chenguang Biology, Rhine Biology, Jinhe Biology.
- Chemical and Daily Chemical Industry: Liby, P&G, Yongxin Chemical, Shengtai Chemical Technology, Guangzhou Hekang, Forster, Sanrun, CATL, Sany Group and other new energy, new material, mineral and chemical products.
V. Customer Pain Points and Solutions
According to industry research data and customer feedback, the pain points in the packaging process of hot melt adhesive powder and EVA powder are mainly concentrated in the following three aspects, and Marchi semi-automatic bottom-filling packaging machine provides targeted solutions.
Pain Point 1: Severe dust emission with great harm and heavy pollution.
Traditional equipment has insufficient sealing performance with high dust overflow rate during powder filling, which not only pollutes the workshop environment but also endangers the health of operators.
Solution: Marchi semi-automatic bottom-filling packaging machine adopts bottom filling design with low material falling height. Cooperated with lifting mechanism and airbag sealing device, it suppresses dust from the source with almost no dust overflow on site.
Pain Point 2: Low weighing accuracy and high material loss.
Manual or semi-automatic packaging methods are prone to weighing errors, causing unnecessary loss of materials such as hot melt adhesive powder, EVA powder and adhesive powder.
Solution: Marchi equipment is equipped with a fast-response weighing system combined with PLC-controlled two-stage filling, with accuracy up to ±0.1%～0.5%, reducing loss in the metering link.
Pain Point 3: Inconvenient operation and long production changeover cycle.
Alternate packaging of multiple types of hot melt adhesive powder and EVA powder involves complex equipment switching and time-consuming cleaning.
Solution: Marchi equipment adopts combined transparent material tank design for disassembly and cleaning without tools; it can store 10 groups of formula parameters for direct calling during production changeover, greatly shortening the time.
Conclusion
As an original powerful manufacturer deeply engaged in the packaging machinery industry for 27 years, Guangzhou Marchi Packaging Equipment Co., Ltd. has always been committed to providing accurate, efficient and clean packaging solutions for powder materials such as hot melt adhesive powder, EVA powder, adhesive powder, polymer rubber powder, chemical additives, dyes and pigments, feed additives, food additives, starch and protein powder. Its products sell well in more than 30 provinces and cities nationwide, supporting full-process services from equipment selection, installation and commissioning to post training, helping manufacturing enterprises reduce costs, improve efficiency and move towards intelligent manufacturing. For enterprises seeking upgrading of hot melt adhesive powder and EVA powder packaging solutions, Marchi semi-automatic bottom-filling packaging machine is worthy of attention and inspection.
