The core of a pouch packing machine's operation is "precise control of pre-made bags." The entire process is coordinated by a robotic arm, sensors, and a PLC control system, resulting in smooth and precise movements. The specific steps are broken down as follows:
1. Bag Retrieval: Automatically grabbing pre-made bags.
The equipment is equipped with a bag storage bin, into which neatly stacked pre-made packaging bags are placed (supporting various bag types, such as flat bags, stand-up pouches, and zipper bags).
The bag retrieval mechanism (usually a vacuum suction cup or mechanical gripper) uses negative pressure adsorption or mechanical clamping to grab individual packaging bags one by one from the storage bin, ensuring no bags are missed or damaged.
After retrieval, the robotic arm precisely transports the packaging bags to the next station, keeping the bag opening facing upwards during transport, in preparation for opening.
2. Bag Opening: Precisely Opening the Bag Opening
After the packaged bag arrives at the opening station, the grippers on both sides clamp the edge of the bag opening, precisely opening the bag opening through mechanical stretching or negative pressure suction.
Some high-end models are equipped with a "bag opening detection" function. If the bag opening is not fully opened or the packaged bag is damaged, the unqualified bag will be automatically rejected to prevent material spillage during filling.
Bag opening cleaning (such as air blowing dust removal) can be completed simultaneously at this stage to ensure that no impurities affect the sealing effect during sealing.
3. Filling: Material Injection as Needed
The opened packaging bag moves to the filling station. The appropriate metering and filling device is used according to the material type to accurately inject the material into the bag:
Granular/lumpy materials (e.g., nuts, candy, hardware parts): Electronic weighing or volumetric metering is used;
Powders (e.g., milk powder, flour, laundry detergent): Screw or spiral filling is used;
Liquids/Sauces (e.g., soy sauce, salad dressing, laundry detergent): Piston or flow metering is used;
Mixed materials (e.g., nut cereal, traditional Chinese medicine slices): Multi-station filling devices can be used to achieve layered or mixed filling;
During the filling process, sensors monitor the material quantity in real time to ensure that the metering error is controlled within ±1%, avoiding overfilling or underfilling.
4. Sealing and Cutting: Sealing the Bag Opening + Excess Material Removal
After filling, the packaging bag is moved to the sealing and cutting station. The sealing method is selected based on the bag type and material characteristics:
Heat Sealing: The bag opening is melted and sealed using a heat-sealing knife (suitable for thermoplastic bags such as PE and PP). The temperature is precisely adjustable (80-200℃).
Ultrasonic Sealing and Cutting:Suitable for aluminum foil bags and composite film bags, providing a strong seal that is not easily broken by heat, especially suitable for materials containing moisture or oil.
Additional Functions: Some models support "venting" (removing air from the bag to extend shelf life), "easy-tear cutting" (for consumer convenience), and "zipper bag sealing pre-compression" (ensuring smooth zipper closure).
If an unsealed packaging bag is detected, the equipment will automatically reject the defective product, ensuring a high packaging pass rate.
5. Discharge: Finished Product Conveying
The sealed and cut finished products are conveyed to the next stage (such as boxing, labeling, and coding) via a discharge conveyor belt. Some models can be equipped with a shaping device to ensure the finished product has a uniform shape, facilitating warehousing and transportation.
Product Application:
- Food Industry: doypack premade pouch packing machine are widely used in the food industry, including packaging nuts, dried fruits, puffed foods, frozen foods, condiments, beverage powders and other food products.
- Pharmaceutical Industry: Used for packaging medicines, health products, medical devices and other pharmaceutical related products.
- Cosmetics Industry: Suitable for packaging cosmetics, skin care products, shampoo, shower gel and other beauty products.
- Daily Necessities Industry: Used for packaging washing powder, detergent, hand sanitizer and other daily necessities.
- Agricultural Industry: Suitable for packaging seeds, fertilizers, agricultural products, etc.
Product Advantages
Key Advantages of Doypack Premade Pouch Packing Machine
- Efficient Production: The Doypack Premade Pouch Packing Machine builds high-efficiency packaging lines. It significantly boosts production efficiency and easily adapts to large-scale manufacturing demands.
- Diverse Packaging Capabilities: This Doypack machine supports bag packaging in multiple shapes and sizes. Users can directly adjust packaging dimensions and formats based on specific product requirements.
- Superior Freshness Retention: The Doypack Premade Pouch Packing Machine delivers reliable, tight sealing. This effectively preserves product freshness and quality while extending the overall shelf life of packaged goods.
- Material & Cost Savings: It optimizes the use of packaging materials to minimize waste. This directly lowers packaging-related costs for production operations.
- Full Automation: The machine enables fully automated packaging processes. It reduces manual labor input, enhances production efficiency, and ensures consistent packaging quality.
- Strong Flexibility: With high adaptability, the Doypack Premade Pouch Packing Machine works with various product types. It meets the packaging needs of businesses across different industries.
- Space-Efficient Design: Doypack Premade Pouch Packing Machines typically feature a compact structure. They occupy minimal floor space, making them ideal for production line layouts in limited areas.
The Doypack premade pouch packing machine is a versatile industrial solution widely trusted across fast-moving consumer goods (FMCG) — including instant noodles, snacks, and condiments — health supplements (vitamin powders, protein blends), and pet food (dry kibble, freeze-dried treats). Designed to adapt seamlessly to diverse packaging scenarios, it eliminates the need for on-site pouch formation, streamlining workflows for businesses of all production scales.
Engineered to meet rigorous industrial production demands, this machine stands out with core competitive advantages that drive productivity, cost savings, and product quality:
24/7 Non-Stop Operational Efficiency: Supports round-the-clock continuous running, eliminating production bottlenecks and significantly ramping up output to fulfill high-volume market demands. Its robust design ensures stable performance even during extended production cycles.
Exceptional Versatility: Adapts effortlessly to diverse pouch styles (zipper bags, spout pouches, stand-up Doypacks) and product types — from powders and granules to small solids. This eliminates the need for multiple specialized machines, optimizing production line space and reducing equipment investment.
Superior Freshness Preservation: Features precision sealing technology that creates an airtight barrier against oxygen and moisture. This extends product shelf life, preserves original flavor, texture, and nutritional value, making it ideal for perishables, premium goods, and long-term storage needs.
15%+ Material Waste Reduction: Optimizes the use of premade pouches and minimizes misalignment errors through automated positioning. This cuts down on material costs, reduces environmental impact, and enhances operational sustainability.
Advanced Automation & Quality Control: Integrates built-in date coding (for traceability) and weight inspection functions, streamlining end-to-end packaging workflows. It ensures consistent packaging quality, reduces human error, and simplifies compliance with industry standards.
Our packaging machine range includes:
VFFS machine VS Vertical form fill Seal machine:
- Granule VFFS Packing Machine.
- Powder VFFS Packing Machine.
- Liquid VFFS Packing Machine.
Flow wrapping machine VS pillow packing machine:
- Up Paper Flow Packing Machine.
- Down Paper Flow Packing Machine.
- Four Side Sealing Flow.
- cookie/cake/popsicle Packing Machine.
- Heat Shrink Packaging Machine.
pouch packing machine VS doypack packaging machine:
- Granule Doypack Packing Machine.
- Powder Doypack Packing Machine.
- Liquid Doypack Packing Machine.
- Rotary Premade Pouch Packing Machine.
- Horizontal/Liner Premade Pouch Packing Machine.
Automatic packaging line solution
- weight inspection machine
- metal inspection machine
- robot carton packing system
- carton sealing machine
- coding machine
- robot palletizing system
Our packaging machines can be used to package the following foods:
nut,driedfruits,bakerycandy.sugar,food/dumplingproducts,cookie,cake,bread.frozensnack,chocolate,chips,marshmallow,confectionery.popsicle,candy bars,ice cream bars,brownies,muffins, nooddles,etc.
Q1: Are you a trading company or a manufacturer?
A1: We are a manufacturer, we provide quality products at factory price, welcome to visit us!
Q2: If we buy your machine, what quality guarantee or warranty do you provide?
A2: We provide you with high-quality machines with a 3-year warranty and provide lifetime technical support.
Q3: When can I get the machine after payment?
A3: The delivery time is subject to the exact machine you confirmed
Q4: How do you provide technical support?
A4:1. Provide technical support via phone, email or MSN/Skype 24/7
2.Provide you with instructions/videos for machine installation, adjustment, setting, maintenance.
3. Engineers are available to provide services for overseas machinery
Q5: How does your after-sales service work?
A5: Ordinary machines will be properly adjusted before shipment. You can use the machine immediately. You can also get free training advice on our machines in our factory. You can also get free advice and consultation, technical support and service, and lifetime technical support via email/fax/phone.
Q6: How about spare parts?
A6: After we handle everything, we will provide you with a spare parts list for your reference
Q7: If we have very special requirements for the production line, can you help me with the design?
A7: Customized design is available with experienced mechanical engineers
Q8: If we have samples of new products, can you help analyze and design the machine?
A8: Yes, our technical department can help analyze, design and test the new products you provide.
Q9: Can you tell me how to start an order?
A9: After paying a 30% deposit to our company after signing the contact information (Pl). We arrange production. Test and inspect the machine before shipment.
Checked by customers or third-party agencies through online or on-site testing. Send the balance before shipment
Q10: Can you send me the product catalog and price list?
A10: An electronic catalog showing product styles is available for your reference. Since the prices of specific products vary, please consult us for your detailed products
Q11: Can l visit your factory?
A11: Sure, Our factory address: Room 304,Wanchuangfang, No.155 Anzhi Road, Jiading District,Shanghai,China
