The Semi Automatic Liquid Weight Filling Machine is designed for precise and efficient filling of liquids. It combines manual handling with automated weighing control to achieve accurate and consistent results. Operators simply place the container, and the system automatically performs quantitative filling based on preset weights.
Equipped with high-precision weighing sensors, an adjustable pump system, and durable filling nozzles, the machine ensures stable performance with minimal error. Its structure includes a roller conveyor for easy drum movement and a weighing scale platform for reliable measurement.
Ideal for 30–300KG filling ranges, this semi-automatic filler is widely used in the food, chemical, and cosmetics industries. Featuring a user-friendly interface and robust design, it delivers dependable performance, high accuracy, and long service life—making it an excellent choice for small to medium-scale production lines.
Semi Automatic Liquid Weight Filling Machine Features
1.Easy Drum Loading
Empty drums are effortlessly placed onto the roller conveyor, preparing them quickly for the filling process.
2.Manual Drum Positioning for Accuracy
Operators manually align each drum at the filling station, ensuring precise insertion of the filling nozzle for smooth and accurate operation.
3.Versatile Filling Nozzle Options
Supports sub-surface, diving, and bottom filling, allowing the machine to handle various liquids and adapt to diverse industrial requirements.
4.Precise Controller Calibration
The controller zero-sets the tare weight before filling, ensuring highly accurate and consistent liquid measurement.
5.Automated Quantitative Filling
Upon activation, the filling head precisely enters the drum and delivers the liquid, achieving consistent and reliable filling every time.
6.Smooth Production Flow
Filled drums are easily moved to the next station, ensuring seamless integration into the production line for efficient processing.
Technical Parameters
| 1 | Accuracy | ±0.1% |
| 2 | Weighing Range | 20-300kg |
| 3 | Filling Speed | 40- 60pcs/hour |
| 4 | Air Supply | 150L/min |
| 5 | Power Supply | AC220V 50HZ |
| 6 | Dimension(mm) | 1220x870x1650 |
| 7 | Weight | 120 kg |
Key Components of a Semi Automatic Liquid Weight Filling Machine
1.Frame / Main Body
Sturdy stainless steel structure providing stable support and durability.
2.High-Precision Weighing System
- Load Cell (Weighing Sensor): Core component that continuously measures the combined weight of the container and liquid.
- Weighing Controller / Indicator: Receives sensor signals, calculates weight, and controls filling. Often equipped with a touchscreen for setting target weight, filling speed, and other parameters.
3.Filling Head and Valve
- Selected based on liquid properties (viscosity, corrosiveness, foaming). Common types include gravity valves, peristaltic pump valves, gear pump valves, screw pump valves, and pneumatic ball valves.
- Usually made of stainless steel (SS304/316) for corrosion resistance.
4.Liquid Supply System
- Includes storage tanks, piping, filters, and pumps .
5.Control System
- PLC or embedded microprocessor acts as the machine’s brain, with an HMI touchscreen for easy operation and parameter adjustment.
6.Operating Components
- Foot switch, start button, and emergency stop switch for safe and convenient operator control.
Core Working Principle of a Semi Automatic Liquid Weight Filling Machine
The operating principle is based on gravimetric (weight-based) feedback control, ensuring high filling accuracy and consistency.
Container Placement:
- The operator places an empty container—such as a pail, bottle, or can—onto the weighing platform of the filling scale.
Tare Weight Compensation:
- The system automatically detects and subtracts the container’s tare weight, ensuring that only the net product weight is measured.
Filling Start:
- The operator initiates the filling cycle using a foot switch, push button, or manual lever.
Two-Stage Filling Process:
- Fast Filling (High Flow Rate):
The filling valve opens rapidly, allowing liquid to flow into the container at a high rate until approximately 90%–95% of the target weight is reached. - Slow Filling (Low Flow Rate or Drip Filling):
As the target weight is approached, the system automatically switches to a low-flow or drip-filling mode to fine-tune the final weight. This design effectively minimizes impact force, splashing, and weighing errors, ensuring precise filling.
Completion and Stop
- Once the preset target weight is reached, the filling valve closes completely.
Container Removal:
- The operator removes the filled container and places the next empty container onto the platform, starting the next filling cycle.
