25kg Bag Packing Machine
UF-S25 automatic 5–50kg big bag packing machine with twin-screw feeding. Fully automatic weighing, bag picking, filling and stitching, suitable for grain, flour, seeds, feed and chemical bulk materials. Servo bag manipulator, works stably in dusty workshops. Contact us for packaging test.
Description
Equipment Introduction
This automatic bagging machine integrates automatic weighing, bag picking, filling, heat sealing and stitching into one fully automated workflow with minimal manual intervention. It greatly saves labor cost and reduces long-term operating expenses. This unit can also connect with other auxiliary machines to build a complete packaging production line.
It is widely applied in agricultural, food, feed and chemical industries, suitable for packaging free-flowing materials such as corn kernels, seeds, flour, white granulated sugar and similar bulk products.
Functional Features & Working Principle
Working Principle
The weigher adopts vertical twin-screw feeding design. The screw is directly driven by a servo motor to guarantee stable feeding speed and high weighing precision. During operation, the screw rotates and discharges materials according to control signals. Weight sensors and weighing controllers process weight signals to display weight data and send control instructions.
Key Features
- Fully automatic weighing, bag loading and stitching; almost no manual operation required.
- Touchscreen control panel for simple and intuitive operation.
- The machine set consists of bag storage library, bag sorting unit, bag loading manipulator, bag clamping & discharging device, bag pushing unit, bag guide mechanism, vacuum system and control system.
- Wide adaptability for different packaging bags. It picks bags from the bag storage warehouse, centers and conveys the bags, pre-opens bag mouths, then the manipulator inserts into the bag opening, while air grippers clamp both sides of the bag mouth to finish bag loading. This bag loading mechanism has low requirements on bag dimension tolerance and bag quality, helping lower your bag manufacturing cost.
- Servo-driven bag loading manipulator. Compared with pneumatic manipulators, it runs faster, loads bags smoothly without impact, and enjoys longer service life.
- Two micro switches installed at the bag clamping position to detect whether the bag mouth is clamped and fully opened. It avoids misjudgment and material spilling, improves machine efficiency and keeps a clean workshop environment.
- Pneumatic components such as solenoid valves adopt sealed installation instead of exposed mounting. It works reliably under dusty conditions and extends machine service life.
Technical Parameters
| Item | UF-S25 |
|---|---|
| Feeding Method | Twin-screw feeding (customizable according to materials) |
| Packing Weight | 5–50 kg |
| Packing Precision | ≤ ±0.1–0.2% |
| Packing Speed | 3–8 bags/min |
| Power Supply | 380/220V, 50–60Hz (TN-S) |
| Total Power | 5 KW |
| Bag Size | L: 500–1000 mm, W: 350–605 mm (Customizable) |
| Bag Material | Woven bag (with inner PE plastic liner) |
| Bag Type | Pillow open-mouth bag |
| Air Consumption | 6kg/cm², 0.3m³/min |
FAQ
Q1: What materials can this automatic big bag packing machine pack?
A: It fits free-flowing bulk materials including corn kernels, seeds, flour, white sugar, feed and chemical raw materials.
Q2: What kind of bags does the machine support?
A: It works for woven bags with PE inner liner, pillow open-mouth bags, bag size can be customized.
Q3: Can it work in dusty workshop?
A: Yes, pneumatic parts are sealed, suitable for dusty working environment.
Q4: Is the bag loading manipulator servo type?
A: Yes, servo manipulator, stable, fast, long service life.




