In the feed additive industry, amino acid products — methionine, lysine, threonine, tryptophan, glutamic acid, valine, glutamine, proline, isoleucine, alanine and others — pose extremely high challenges to the packaging process due to their high value and strict quality requirements. Serious dust, difficult control of metering accuracy, easy moisture absorption and caking of materials, and urgent anti-oxidation demands are common long-term problems faced by many feed additive manufacturers.
As a powerful source manufacturer focusing on R&D and production of automated packaging equipment, Guangzhou Marchi Packaging Equipment Co., Ltd. has deep roots in the packaging machinery industry for many years. Targeting the material characteristics of amino acids and various feed additives, it has launched a feed additive packaging machine solution with the MCZD-25F fully automatic powder big bag packaging machine as the core. The equipment integrates automatic metering, automatic bag feeding, automatic filling and automatic heat sealing and sewing, and has been successfully applied in dozens of amino acid and feed additive manufacturers across China, including Shandong, Henan, Hebei, Guangdong, Sichuan, Jiangsu, Zhejiang, Anhui, Fujian, Hunan, Hubei, Guangxi, Yunnan, Guizhou, Shaanxi, Gansu, Liaoning, Jilin, Heilongjiang and other regions.
I. Equipment Advantages of Marchi MCZD-25F Feed Amino Acid Packaging Machine
The feed additive weighing and packaging machine of Guangzhou Marchi Packaging Equipment Co., Ltd. is famous for high precision and high stability, with core advantages reflected in the following aspects:
High-precision metering ensures formula consistency.
The equipment adopts single screw feeding, with the screw directly driven by a servo motor, achieving weighing accuracy ≤±0.1%～0.2%. For high-value materials such as methionine, lysine and threonine, the cost of each batch is strictly controllable, avoiding raw material waste caused by metering deviations.
Full-process automation reduces labor dependence.
The equipment integrates automatic metering, automatic bag feeding, automatic filling and automatic heat sealing and sewing without manual intervention. From bag picking in the bag storage magazine, bag centering and positioning, pre-opening to the manipulator inserting knife into the bag mouth, the whole action is coordinated by the control system, greatly reducing the number of operators per shift.
Clean and hygienic design eliminates cross-contamination.
Parts in contact with materials are made of high-quality stainless steel, and screw blades are polished. The whole machine complies with GMP requirements without sanitary dead corners, meeting the strict hygiene standards of the feed additive industry.
Multi-purpose in one machine with wide bag adaptability.
It supports various bag types such as laminated kraft paper bags, woven bags and plastic bags, with adjustable bag length from 500 to 1000mm, helping enterprises flexibly respond to different packaging needs.
II. Core Configuration and Key Parameters of the Equipment
The MCZD-25F fully automatic powder big bag packaging machine adopts a vertical screw feeding structure composed of a single screw, which is directly driven by a servo motor to ensure metering speed and accuracy. During operation, the screw rotates to feed materials according to control signals; the weighing sensor and weighing controller process weighing signals and output weight data display and control signals. The unit consists of a bag storage magazine, bag picking and arranging device, bag feeding manipulator, bag clamping and discharging device, bag holding and pushing device, bag mouth guiding device, vacuum system and control system, capable of completing a series of operations such as automatic metering, automatic bag feeding, automatic filling and automatic heat sealing and sewing. It can also form a complete production line with other supporting equipment.
- Equipment Model: MCZD-25F
- Feeding Mode: Single screw feeding
- Packaging Weight: 5～25 kg
- Packaging Accuracy: ≤±0.1%～0.2%
- Packaging Speed: 1.5～2 bags/minute
- Bag Size: Length 500～1000 mm
- Bag Materials: Laminated kraft paper bags, woven bags, plastic bags, etc.
III. Explosion-Proof and Anti-Oxidation Adaptation Solutions
Feed additive packaging workshops usually have a certain dust environment. For safety requirements, the MCZD-25F can be optionally equipped with explosion-proof electrical configurations — flameproof motors, explosion-proof electric control cabinets, grounding copper bars and others, eliminating potential safety hazards from the source. For materials with high anti-oxidation requirements such as methionine and lysine, the equipment can be fitted with a nitrogen filling protection device to replace oxygen in the bag during filling, preventing material oxidation and deterioration and ensuring product activity. The whole machine adopts a fully enclosed structure, and each execution unit is equipped with control and safety devices, effectively suppressing dust overflow and meeting workshop safety production requirements.
IV. Detailed Explanation of the Packaging Process of the Feed Amino Acid Packaging Machine
The packaging process of the MCZD-25F fully automatic powder big bag packaging machine is divided into five steps:
Step 1: Bag Preparation and Picking
The equipment automatically picks bags from the bag storage magazine, and the bag arranging device centers and positions the bags to ensure accurate bag mouth placement.
Step 2: Pre-Opening and Bag Feeding
After bag mouth positioning, the pre-opening device stretches the bag mouth in advance; the bag feeding manipulator inserts a knife into the bag mouth, and air grippers on both sides clamp the bag mouth synchronously to complete the bag feeding action.
Step 3: Metering and Filling
The screw rotates to feed materials according to control signals, and the weighing sensor monitors weight in real time for two-stage fast and slow feeding. The bag clamping and discharging device cooperates with the vacuum system to reduce dust escape during filling.
Step 4: Bag Holding and Mouth Guiding
The bag holding and pushing device smoothly delivers the filled bag body, and the bag mouth guiding device prepares for subsequent sealing.
Step 5: Heat Sealing and Sewing
The sealing device completes bag mouth heat sealing and sewing. The whole process is uniformly scheduled by the PLC control system, with the touch screen human-machine interface displaying real-time operating status.
V. Application Scenarios and Packagable Materials
The MCZD-25F fully automatic powder big bag packaging machine is widely applicable to the following scenarios: feed additive manufacturers (25kg woven bag packaging of raw materials such as lysine sulfate, lysine hydrochloride, threonine, methionine, tryptophan, monosodium glutamate, valine), biological fermentation factories (packaging of various amino acid powder products produced by fermentation), pharmaceutical raw material workshops (clean packaging of high-activity amino acid APIs), and food additive enterprises (automated packaging of powdered products such as vitamins, taurine, citric acid, malic acid, fumaric acid, xanthan gum, trehalose and enzyme preparations).
Packagable materials include: feed additives (lysine, threonine, glutamic acid, methionine, tryptophan, arginine, cystine, proline, valine, glutamine, isoleucine, alanine, etc.), food additives (vitamin C, vitamin E, B vitamins, taurine, citric acid, malic acid, fumaric acid, xanthan gum, trehalose, enzyme preparations, etc.), pharmaceutical APIs (paracetamol, amoxicillin, ibuprofen, metformin hydrochloride, etc.), chemical powders (titanium dioxide, calcium carbonate, talcum powder, magnesium stearate, etc.), as well as various premixes, enzyme preparations, non-dairy creamer and others.
VI. Solutions to Customer Pain Points
Pain Point 1: Serious dust during packaging pollutes the workshop environment.
Solution: Adopts a submersible filling design, with the filling pipe extending deep into the bag bottom for material filling, cooperating with a bag mouth dust removal system to effectively suppress dust diffusion. The fully enclosed structure controls dust concentration at a low level, complying with workshop cleanliness standards.
Pain Point 2: Materials such as lysine and threonine easily absorb moisture and cake, affecting product quality.
Solution: Can be equipped with a heating and dehumidification module, and food-grade seals are used in the whole process to block moisture intrusion from the source, effectively preventing amino acid materials from absorbing moisture and caking during packaging.
Pain Point 3: Frequent multi-variety production changes lead to time-consuming equipment debugging.
Solution: The PLC control system supports multi-formula storage and one-key switching. Packaging parameters of different materials such as lysine, threonine and tryptophan can be stored in advance and called directly during production changes without repeated debugging.
Pain Point 4: Unstable packaging accuracy causes raw material waste.
Solution: The weighing sensor and servo motor form a closed-loop control to realize two-stage fast and slow feeding, with packaging accuracy stabilized at ≤±0.1%～0.2%, reducing loss of high-value materials.
Pain Point 5: Failure to meet anti-oxidation requirements.
Solution: For materials with high anti-oxidation requirements, a nitrogen filling protection device can be added to replace oxygen in the bag during filling, preventing material oxidation and deterioration and ensuring product activity.
Pain Point 6: Weak sealing causes material leakage during transportation.
Solution: Integrated heat sealing and sewing design, with the sealing device adopting a high-precision temperature control system to ensure firm bag mouth sealing. The equipment supports various materials such as laminated kraft paper bags, woven bags and plastic bags, matching corresponding sealing processes for different bag types.
Guangzhou Marchi Packaging Equipment Co., Ltd. — a powerful source manufacturer — provides whole-factory solution customization and non-standard design services with a nationwide service network. Welcome amino acid and feed additive manufacturers from all over the country to visit the factory for on-site inspection and explore suitable packaging solutions together.
