In the industrial packaging process of numerous powdery materials such as zinc oxide, titanium dioxide, calcium carbonate and talcum powder, bulk bag packaging has long been plagued by practical problems including heavy dust, hard-to-control precision and high labor intensity. As an original manufacturer with 27 years of R&D and manufacturing experience in packaging machinery, Marchi Packaging Equipment launches the automatic weighing packaging machine for zinc oxide (Model: MCJBP-2000SS) targeting these pain points. With high-precision weighing, stable feeding and fully automatic procedures, it delivers reliable bulk bag packaging solutions for manufacturers. A systematic introduction is given below from the aspects of equipment advantages, application scenarios, packaging processes, countermeasures for pain points and applicable material scope.
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, 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: New energy, new material, mineral, chemical and other industries; Liby, P&G, Yongxin Chemical, Shengtai Chemical Technology, Guangzhou Hekang, Forster, Sanrun, Sany Group, CATL.
I. Core Equipment Advantages: Robust Structure and Precise Control
The MCJBP-2000SS zinc oxide bulk bag packaging machine adopts gross weight weighing and metering, with the bulk bag fully suspended on the weighing platform. The whole machine consists of six modules: feeding device, weighing platform, lifting mechanism, bag hanging-releasing / bag clamping device, air inflation / return air dust removal pipeline and steel frame structure.
Feeding Device: Double-screw structure matched with variable frequency speed regulation. A cut-off butterfly valve is installed at the outlet of the single arc feeding gate to prevent residual materials from falling and affecting precision and polluting the environment. The specially designed pneumatic shifting fork mechanism continuously breaks arches, effectively solving the bridging problem of powders such as zinc oxide in the feeding area and ensuring continuous and stable feeding.
Weighing Platform: Equipped with high-precision and impact-resistant weighing sensors matched with special force transmission connecting mechanisms, with overload limit function to ensure 100% transmission of bag weight to sensors without lateral force interference and excellent automatic reset performance.
Lifting Mechanism: Fixed on the weighing platform and composed of air cylinders and guide mechanisms. It can lift and lower bags multiple times as needed during filling to ensure even accumulation of materials inside bags; after weighing, it automatically lowers heavy bags to the ground or pallets for subsequent bag loosening and unhooking.
Bag Hanging-releasing / Bag Clamping Device: Compatible with various bulk bag specifications with a nominal volume of 1200～1400L. Operators hang slings manually, the bag mouth is clamped pneumatically, and the bag mouth is automatically loosened with sling unhooking after bag dropping.
All parts of the whole machine in contact with materials are made of 316L stainless steel, corrosion-resistant and easy to clean. Power: 2.45KW, Power Supply: AC380V 50Hz, Packaging Accuracy: ±0.1%～±0.3%, Speed: 5-6 bags per hour (subject to material characteristics and packaging weight), Single Bag Weighing Range: 400-600KG.
II. Typical Application Scenarios
The equipment is widely applied in industries including chemical industry, mining, building materials, agriculture, food additives and environmental protection materials. It can realize precise weighing and clean packaging for light, dust-prone fine powders such as zinc oxide, titanium dioxide and white carbon black, as well as heavy powders such as calcium carbonate, kaolin and bentonite. It can also be used for building material materials such as cement, dry-mixed mortar and putty powder, as well as agricultural fertilizers including compound fertilizer, water-soluble fertilizer and phosphate fertilizer. The equipment's closed dust removal design and stable feeding system are especially suitable for enterprises with high requirements for production environment and packaging precision.
III. Full-process Packaging Procedure
The whole packaging production line is controlled by PLC programs to automatically and continuously complete the following procedures:
Manual Bag Hanging and Pneumatic Bag Clamping: Operators hang the slings of empty bulk bags on the bag hanging device, and the bag clamping mechanism automatically clamps and seals the bag mouth.
Double-screw Quantitative Filling: The system performs coarse feeding and fine feeding according to set parameters. Weighing sensors feed back weight data in real time, and the cut-off butterfly valve closes quickly when reaching the target value. The lifting mechanism vibrates and compacts materials timely during filling.
Bag Dropping and Automatic Bag Releasing: After weighing, heavy bags are lowered to the ground or pallets with steady bag bottom landing. The bag loosening mechanism automatically opens the bag mouth and unhooks slings synchronously.
Conveying and Re-inspection: Packed bulk bags are sent to the re-inspection scale via conveyor belts to verify whether the weight meets standards.
Automatic Palletizing: Qualified products are delivered to palletizers through conveying lines, neatly stacked according to preset stacking patterns, then transported to warehouses by forklifts to complete the whole process.
IV. Solutions to Customer Pain Points
Severe dust failing environmental protection standards: The equipment is equipped with an air inflation / return air dust removal system, a cut-off butterfly valve is installed at the feeding port, and the whole machine features good tightness to effectively control dust overflow and improve the workshop environment.
Powder bridging leading to unstable feeding: The pneumatic shifting fork mechanism continuously breaks arches in the feeding area, matched with variable frequency speed regulation to flexibly adjust the ratio of coarse and fine feeding, ensuring uniform feeding and balancing precision and speed.
Manual handling with high labor intensity: The whole process from bag clamping, lifting, weighing to bag releasing and palletizing is fully automatic, greatly reducing manual intervention and cutting labor costs.
Poor packaging precision affecting product quality: High-precision sensors matched with special force transmission mechanisms deliver system accuracy of ±0.1%～±0.3%. Three-stage control ensures reliable weight of each bag.
Cumbersome switching of bag specifications: The bag hanging-releasing device is adaptable to multiple bulk bag sizes (volume 1200～1400L) and supports non-standard customization to meet diverse packaging demands.
V. Applicable Material Scope
Zinc oxide, titanium dioxide, white carbon black, talcum powder, calcium carbonate, kaolin, bentonite, silica powder, mica powder, graphite powder, carbon black, sulfur powder, soda ash, sodium bicarbonate, sodium sulfate, lithopone, iron oxide powder, alumina powder, magnesium oxide powder, calcium hydroxide, calcium chloride, magnesium sulfate, polyaluminum chloride, polyacrylamide, scale inhibitor, defoamer, industrial salt, resin powder, rubber additives, plastic filler powder, cement, lime powder, gypsum powder, putty powder, tile adhesive, grout, dry-mixed mortar, waterproof powder, anti-crack mortar, refractory powder, ceramic raw materials, organic fertilizer, compound fertilizer, water-soluble fertilizer, phosphate fertilizer, potash fertilizer, nitrogen fertilizer, soil conditioner, corn starch, cassava starch, wheat flour, flour, maltodextrin, lactose, glucose, soybean protein powder, bone meal, activated carbon, decolorizing powder, desiccant, dust removal ash, etc.
As a powerful original manufacturer with 27 years of industrial accumulation, Marchi has provided customized packaging solutions ranging from single machines to complete production lines for numerous powder processing enterprises. Committed to solid manufacturing craftsmanship and continuous technical optimization, we help customers improve efficiency and quality in packaging links. Welcome to contact us for detailed consultation or on-site inspection.
