In the packaging process of granular materials, manufacturers generally face three core pain points: unstable metering accuracy leading to excessive net content deviation, limited packaging speed restricting production capacity release, and excessive manual intervention increasing operational risks and labor costs. Addressing these industry problems, Guangzhou Marchi Packaging Equipment Co., Ltd. has launched the MCGD8-200 pre-made pouch automatic weighing packaging machine. It combines the high-precision metering of automatic quantitative weighing packaging machines with the stability of pre-made pouch packaging, providing professional one-stop automatic packaging solutions for granular material manufacturers.
I. Model Selection: MCGD8-200 Pre-made Pouch Automatic Granule Weighing Packaging Machine
As a professional manufacturer of automatic granule weighing packaging machines, Guangzhou Marchi has been deeply engaged in the packaging machinery industry for many years and fully understands the strict requirements of granule material packaging for metering accuracy and operational stability. The MCGD8-200 is a fully automatic pre-made pouch packaging machine integrating pouch feeding, weighing and metering, filling and sealing. It is especially suitable for the automatic packaging of various granular materials. Adopting a PLC control system and servo power system, the model realizes parameter setting and operation monitoring via a human-machine interface. Operators can quickly master equipment operation without professional technical background, effectively lowering the technical threshold for enterprises.
II. Core Configuration: High-precision Weighing System and Stable Pouch Feeding Mechanism
The core advantage of MCGD8-200 lies in the coordination of its high-precision weighing system and stable pouch feeding mechanism. The weighing system adopts advanced sensors and intelligent algorithms. Through automatic quantitative weighing, the metering accuracy of each feeding is controlled within ±0.5%, fundamentally solving raw material waste and unqualified net content caused by inaccurate metering in traditional packaging. The pouch feeding system is equipped with 8 working positions, completing the whole process in sequence including pouch feeding, coding, zipper opening, pouch opening, metering feeding, cleaning, heat sealing and shaping, realizing fully automatic operation from pouch picking to finished product output.
In terms of material selection, all parts in contact with materials are made of 304/316 stainless steel or food-grade plastic, meeting the hygiene requirements of food production and suitable for clean production environments in food, pharmaceutical, chemical and other industries. Control components adopt internationally renowned brands to ensure the stability and reliability of the equipment during long-term continuous operation and reduce enterprise maintenance costs.
III. Detailed Packaging Process: Fully Automatic Operation Reducing Manual Intervention
The packaging process of MCGD8-200 realizes fully automatic operation from pouch picking to finished product output, with each working position operating collaboratively to ensure a stable and efficient packaging process:
● Pouch Feeding: Vacuum suction cups automatically pick pouches from the pouch library and transport them to the pouch clamping position
● Coding: An optional coding device prints production date, batch number and other information at designated positions on packaging pouches
● Zipper Opening: Automatically open the pouch zipper for zipper pouches
● Pouch Opening: Open the pouch mouth with suction cups to prepare for feeding
● Metering and Feeding: After the weighing system completes automatic quantitative weighing, materials enter the pouch through the feeding channel
● Cleaning: Clean residual materials at the pouch mouth to ensure sealing quality
● Heat Sealing: Constant temperature controlled heat sealing device ensures flat and firm sealing
● Shaping: Shape finished pouches to ensure an attractive packaging appearance
The whole process is equipped with multiple detection functions: no feeding without pouches or incomplete pouch opening, no feeding action without pouch opening, and no sealing without pouches or feeding, effectively avoiding quality problems such as empty pouches and missing sealing. Meanwhile, the equipment can be optionally equipped with safety functions including door opening alarm, no color band alarm, low air pressure alarm and abnormal sealing temperature alarm to ensure safe and reliable equipment operation and provide all-round stable production guarantee for enterprises.
IV. Wide Range of Applicable Materials: From Food Granules to Multi-industry Granular Materials
As a professional automatic granule weighing packaging machine, MCGD8-200 is not only suitable for packaging various granular foods, but also can be customized according to material characteristics. For food granules, it can package:
● Grain category: Rice, millet, brown rice, black rice, glutinous rice, coix seed, corn kernel, sorghum rice, buckwheat rice, oat rice, highland barley rice, wheat kernel, barley kernel, mung bean, red bean, soybean, black bean, kidney bean, peanut, sesame
● Nut category: Walnut kernel, almond, cashew nut, hazelnut, pistachio, macadamia nut, pecan, pine nut, sunflower seed, pumpkin seed, peanut kernel, chestnut
● Condiment category: Chinese prickly ash, star anise, cinnamon, dried chili, cumin, pepper grain, salt granule, monosodium glutamate granule, chicken essence, sugar granule, mixed condiment granules
● Seed category: Vegetable seeds, flower seeds, lawn seeds, crop seeds
● Feed category: Pet feed, aquatic feed, livestock and poultry feed granules
● Chemical granule category: Plastic granules, resin granules, fertilizer granules, compound fertilizer, urea granules, rubber granules
● Pharmaceutical granule category: Chinese herbal pieces, traditional Chinese medicine granules, health care granules, vitamin granules
● Hardware category: Screws, nuts, gaskets, fasteners, plastic parts, rubber parts, electronic components
● Other granular materials: Activated carbon granules, desiccant granules, water-absorbent resin granules, ceramic granules, grinding media
Whether for single materials or mixed packaging of multiple materials, MCGD8-200 can operate stably through parameter adjustment to meet diversified packaging needs of different industries and materials.
V. Pouch Type Adaptation and Pouch Width Adjustment
MCGD8-200 supports various pre-made pouch types, including stand-up pouches, zipper pouches, spout stand-up pouches and flat pouches, meeting the packaging form requirements of different products. In terms of pouch width adjustment, the equipment adopts automatic motor adjustment. Operators can synchronously adjust the position of each group of clamps only by pressing buttons without manual individual adjustment, greatly saving pouch replacement time and improving production flexibility.
Packaging size range: Pouch length 100~300mm, pouch width 100~200mm, covering most small and medium-sized packaging specifications on the market. Applicable materials include PE composite film, aluminum foil film, aluminized film and other composite films, with good sealing and barrier properties to meet the shelf life requirements of different products.
VI. Explosion-proof and Anti-oxidation Adaptation
According to the production environment requirements of different industries, MCGD8-200 can be configured with various functional options. For fresh-keeping special requirements in the food and pharmaceutical industries, the equipment can be equipped with a nitrogen flushing modified atmosphere device. Nitrogen is filled into the pouch before sealing to replace internal oxygen, effectively slowing down material oxidation and maintaining product color and quality. For explosion-proof requirements involved in chemical granule packaging, the equipment can be upgraded with explosion-proof configurations according to material characteristics to meet safe production standards and ensure stable equipment operation in special environments.
VII. Key Parameters
Equipment Model: MCGD8-200
Packaging Size L×W(mm): 100~300 × 100~200
Packaging Speed: 25~90 bags per minute
Applicable Materials: PE composite film, aluminum foil film, aluminized film and other composite films
Applicable Pouch Types: Stand-up pouches, zipper pouches, spout stand-up pouches, flat pouches
Pouch Width Adjustment: Automatic adjustment
VIII. Why Choose Guangzhou Marchi
As a professional manufacturer of automatic weighing packaging machines, Guangzhou Marchi Packaging Equipment Co., Ltd. has profound technical accumulation and rich industry experience in the packaging machinery field. Adhering to customer demand orientation, the company provides full-cycle services including model selection, solution design, installation and commissioning, and after-sales maintenance. Featuring high-precision automatic quantitative weighing, stable and reliable operation and simple operation, the MCGD8-200 series pre-made pouch packaging machines have been widely used in food, grain, chemical, pharmaceutical, hardware and other industries, helping manufacturers achieve cost reduction and efficiency improvement.
If you are looking for an automatic granule weighing packaging machine that can solve metering accuracy problems, improve packaging efficiency and reduce labor costs, please contact Guangzhou Marchi Packaging Equipment Co., Ltd. for more product information and customized solutions.

