Doypack packaging machines play a vital role in modern manufacturing by offering efficient, consistent, and high-speed pouch packaging. However, like all automated equipment, they can occasionally experience performance issues. Understanding common problems and knowing how to troubleshoot them helps minimize downtime and maintain production efficiency.
At DBAO Packaging Machinery, we provide high-performance automatic Doypack packaging machines along with expert technical support to ensure your line runs smoothly. Below, we outline typical issues and practical solutions.
1. Pouch Not Opening Properly
Possible Causes:
- Poor pouch quality or stiffness
- Weak vacuum suction or grippers
- Incorrect alignment of suction nozzles
Troubleshooting Tips:
- Use high-quality pouches with proper thickness and sealing compatibility
- Check the suction system for wear or leaks
- Adjust gripper settings and ensure correct vacuum timing
2. Inconsistent Filling Volume
Possible Causes:
- Product flow instability (especially with viscous or granular materials)
- Malfunctioning dosing system
- Blockages in filling nozzles
Troubleshooting Tips:
- Calibrate the filling system regularly
- Clean and inspect valves and nozzles for clogs
- Use agitation or heating systems for sticky or thick products
3. Poor Seal Quality or Leaks
Possible Causes:
- Incorrect sealing temperature or pressure
- Contaminants (oil, powder, moisture) on the sealing area
- Misaligned sealing jaws
Troubleshooting Tips:
- Adjust sealing temperature, pressure, and dwell time based on pouch material
- Ensure pouch edges are clean before sealing
- Regularly inspect and align the sealing jaws
4. Pouch Jamming or Misfeeding
Possible Causes:
- Deformed or curled pouches
- Improper pouch placement in the loading station
- Wear on pouch pickup arms
Troubleshooting Tips:
- Store pouches flat in a clean, dry environment
- Check and recalibrate pouch loading mechanisms
- Replace worn-out mechanical parts as needed
5. Machine Stops Unexpectedly
Possible Causes:
- Sensor misalignment or failure
- Emergency stop or safety switch engaged
- Electrical or PLC issues
Troubleshooting Tips:
- Check all sensors and photo eyes for proper alignment
- Reset the machine and verify all safety guards are closed
- Refer to the machine’s error code and consult the manual or DBAO technical team
6. Coding or Labeling Errors
Possible Causes:
- Printer not synchronized with the main machine
- Worn ribbon or ink cartridge
- Incorrect position of the label or code
Troubleshooting Tips:
- Recalibrate printer timing and position
- Replace or refill printer consumables
- Ensure label sensors are clean and functioning correctly
Preventive Maintenance Tips
- Perform daily cleaning of filling nozzles, sensors, and sealing jaws
- Lubricate moving parts according to schedule
- Replace filters and gaskets periodically
- Keep a maintenance log to track recurring issues
- Train operators on machine settings and basic fault diagnosis
Support from DBAO Packaging Machinery
With decades of experience in automatic Doypack machine manufacturing, DBAO Packaging Machinery offers full technical support, training, and spare parts supply to keep your operation running smoothly.
Our machines are designed with intuitive interfaces and error diagnostics to simplify troubleshooting. For complex issues, our engineering team provides remote assistance and in-person support as needed.
Contact Us
Have an issue you can’t solve? We’re here to help.
Email: steven@dbaopack.com
Website: www.dingbaopack.com
