What Parameters Should You Consider Before Purchasing a 300kg Capacity Weighing Filling Machine?

Choosing the right 300kg capacity semi-automatic weighing filling machine is essential to ensure efficiency, precision, and long-term reliability. Below are the key parameters to evaluate before making a purchase:

1. Filling Range and Accuracy
   Ensure the machine supports a filling range that covers your product needs (e.g., 100–300kg). The typical filling accuracy should be around ±0.2% F.S. (tested with water), which is critical for industries like agrochemicals, paint, and lubricants.

2. Weighing Sensor Brand and Precision
   The quality of the weighing system determines the machine’s stability. Reputable brands like METTLER TOLEDO or HBM are recommended for their fast response, low error margin, and resistance to interference.

3. Filling Nozzle Design and Lifting Mechanism
   Bottom-up filling is essential for foamy liquids such as EC pesticides or latex paint. Check if the filling nozzle has an automatic lifting function and anti-drip mechanism to ensure clean, stable operation.

4. Fast/Slow Dual-Stage Valve Control
   Machines with dual-valve systems enable fast initial filling followed by slow precision filling, helping balance speed and accuracy.

5. Inlet/Outlet Connections and Material Compatibility
   Check if the pipe connections use quick-release clamps, whether the system integrates with your existing pipeline, and if it handles high-viscosity or corrosive liquids. Heated jackets or anti-corrosive options may be needed.

6. Drum Compatibility and In-Feed Direction
   Verify compatibility with common drum types such as 200L steel drums or plastic barrels. Also confirm if the in-feed direction (left-to-right or right-to-left) suits your production layout.

7. Control System and Automation Level
   Look for a PLC and touchscreen control panel. Features like recipe switching, error alarms, and remote connectivity improve operational flexibility and user-friendliness.

8. Material Construction and Cleaning Ease
   Ensure all contact parts are made from SUS304 or SUS316 stainless steel. Quick-disassembly structures simplify cleaning and allow rapid product changeovers.

9. Power Supply and Utility Requirements
   Verify if the machine uses 220V or 380V and ensure it fits your factory’s power infrastructure. Also check for any compressed air or water requirements.

10. Machine Dimensions and Floor Space
    Check whether the physical size (e.g., 800×1700×2100mm) fits into your available production space. Leave room for maintenance and operator access.