With the continuous improvement of requirements for powder packaging accuracy and safety in chemical, new energy, food, pharmaceutical and other industries, how to achieve high-precision automatic weighing, effectively control dust emission, and meet explosion-proof and anti-oxidation requirements has become a key issue in the powder packaging field. Recently, Guangzhou Marchi Packaging Equipment Co., Ltd. (hereinafter referred to as "Marchi") launched a 25kg automatic weighing packaging machine (powder packaging machine / powder vacuum packaging equipment), providing a systematic solution with high precision, low dust emission and excellent safety adaptability for powder packaging.
I. Core Advantages: Bottom-Filling Filling for Precision and Dust-Free Operation, Weighing System Ensures Metering Accuracy
In the powder packaging process, dust control and metering accuracy are often mutually restrictive. Traditional top-filling methods tend to generate large amounts of dust and increase the risk of metering deviations due to the large material drop. The newly launched Marchi MC-DLLB-100L 25kg automatic weighing packaging machine adopts bottom-filling filling technology, which fills materials from the bottom during the filling process with a small drop, suppressing dust emission at the source. This model is suitable for powder and small-particle materials with high packaging accuracy requirements and uneven density, showing good adaptability in automatic weighing and packaging of powder materials.
The equipment features an all-stainless steel structure and a combined or open transparent material hopper design, allowing easy disassembly and cleaning without tools, meeting strict hygiene standards in food, pharmaceutical and other industries. The pneumatic bag clamping device and bracket are directly installed on the weight sensor, performing fast and slow two-stage filling according to the preset weight, and cooperating with a high-response weighing system to ensure packaging accuracy. The control system of the powder packaging machine adopts PLC control and a touch-screen human-machine interface display, with convenient and intuitive operation, and can store up to 10 formula parameters to meet the needs of rapid packaging switching for various powders.
II. Application Scenarios: Covering Powder Packaging Needs in Multiple Industries, Supporting Explosion-Proof and Anti-Oxidation Adaptation
The 25kg powder packaging machine has a wide range of applications, with good adaptability in chemical raw materials, food additives, pharmaceutical intermediates, new energy materials, fine chemicals, biological fermentation and many other fields. Especially in chemical, new energy and other industries, dust explosion protection and anti-oxidation in the packaging of ultra-fine powders are key concerns of users.
Marchi can provide customized configuration solutions according to different material characteristics and production environments. For materials containing flammable and explosive dust, the equipment can be optionally equipped with an explosion-proof electrical system and static elimination device to meet relevant explosion-proof safety standards. For easily oxidized materials (such as certain food additives and chemical intermediates), the equipment can be configured with a vacuum nitrogen filling interface to complete gas replacement during packaging, effectively delaying material oxidation and extending product shelf life. The equipment adopts a modular design, and can be optionally equipped with a dust removal interface, vacuum system, explosion-proof configuration, etc. according to user needs, realizing "multi-purpose in one machine and customized on demand".
III. Packaging Process: Intelligent Weighing and Filling Fully Automatic, Clear and Controllable Process
The packaging process of the MC-DLLB-100L powder vacuum packaging equipment is divided into the following key steps:
Step 1: Bag placing and clamping. The operator puts the empty packaging bag over the pneumatic bag clamping device, and the bag clamp automatically clamps and lifts the bag mouth to ensure a tight fit between the bag mouth and the filling nozzle.
Step 2: Fast filling. According to the preset packaging weight (5～25kg), the system quickly injects powder into the bag from the bottom in a bottom-filling manner. The filling nozzle goes deep into the bottom of the bag with a small drop, effectively reducing dust emission.
Step 3: Slow feeding. When the weighing sensor detects that the material is close to the set value, the system automatically switches to slow filling mode for precise fine replenishment, ensuring packaging accuracy is controlled within ±0.1%～0.5%.
Step 4: Bag unloading completed. After the weighing reaches the standard, filling stops, the bag clamping device releases, and the operator takes off the packaging bag to enter the sealing process.
The whole process is automatically completed under PLC control, with a packaging speed of 1～4 bags per minute and considerable single-shift production capacity. The equipment is compatible with 3P AC 208～415V 50/60Hz power supply, with a total power of 2.87kW, a total weight of 450kg, and a small footprint, suitable for various production workshop layouts.
IV. Solutions: Focusing on Customer Pain Points and Providing Systematic Countermeasures
Aiming at common pain points in the powder packaging process, Marchi provides the following systematic solutions combined with the design features of the MC-DLLB-100L 25kg automatic weighing packaging machine:
Pain Point 1: Serious dust pollution, affecting the production environment and workers' health.
• Solution: Adopt a bottom-filling filling structure with the filling nozzle deep into the bag bottom, greatly reducing material drop and dust generation; the equipment can be connected to the workshop negative pressure dust removal system through a dust removal interface to further reduce the workshop dust concentration.
Pain Point 2: Unstable packaging accuracy, leading to material loss and metering disputes.
• Solution: The pneumatic bag clamping device and bracket are directly installed on the weight sensor, cooperating with a high-response weighing system to realize closed-loop control of "fast and slow dual-speed filling + real-time weighing feedback", ensuring packaging accuracy of ±0.1%～0.5%.
Pain Point 3: High potential safety hazards in packaging flammable and explosive powders.
• Solution: Can be equipped with an explosion-proof electrical system (Ex explosion-proof grade), using explosion-proof motors, explosion-proof sensors and sealed cable threading holes, and equipped with a static elimination device to eliminate spark ignition risks at the source.
Pain Point 4: Short shelf life of easily oxidized materials after packaging.
• Solution: The equipment can integrate a vacuum nitrogen filling function to perform gas replacement in the bag after filling, effectively reducing the oxygen content in the bag and extending the fresh-keeping period of materials.
Pain Point 5: Low efficiency in multi-variety packaging switching and troublesome formula adjustment.
• Solution: The PLC control system supports storing 10 formula parameters, which can be called with one click when switching varieties without repeated settings, improving the operation efficiency of multi-category packaging.
Conclusion: Marchi Continuously Empowers Intelligent Upgrading of Powder Packaging through Technological Innovation
As a powerful original manufacturer specializing in packaging machine production lines, Guangzhou Marchi Packaging Equipment Co., Ltd. has been deeply engaged in the field of automatic weighing and packaging for many years, committed to providing customized solutions for various powder and granular material packaging needs. The newly launched MC-DLLB-100L 25kg automatic weighing packaging machine – 25kg powder packaging machine – powder vacuum packaging equipment, with core advantages such as bottom-filling dust-free filling, high-precision weighing system, PLC intelligent control, and flexible explosion-proof/anti-oxidation adaptation, provides reliable automatic powder packaging support for chemical, food, pharmaceutical, new energy and other industries. In the future, Marchi will continue to promote technological innovation, helping more manufacturing enterprises achieve intelligent upgrading, cost reduction and efficiency improvement in the packaging process.
