Fruit cover bag making machines, especially those designed for mango protection paper bags, are critical for ensuring high-quality fruit packaging. However, operational challenges can arise during production. This guide addresses common issues with mango bag making machines, their root causes, and proven solutions to optimize performance and extend equipment lifespan.
✓ Incorrect paper alignment
✓ Worn feed rollers
✓ Static electricity buildup
✓ Paper quality issues
✔ Adjust paper guide rails to ensure straight feeding
✔ Replace rubber feed rollers every 6-12 months
✔ Install anti-static brush near unwinding station
✔ Use paper with proper GSM (60-80gsm recommended)
Prevention Tip: Regularly clean the paper path with compressed air to remove dust accumulation.
✓ Insufficient glue application
✓ Incorrect temperature settings
✓ Worn pressure rollers
✓ Paper moisture content issues
✔ Increase glue nozzle pressure by 10-15%
✔ Adjust hot melt glue temperature to 160-180°C
✔ Resurface or replace compression rollers
✔ Store paper in controlled humidity (40-60% RH)
Pro Tip: Conduct seal strength tests every 2 hours using standard weight method.
✓ Belt slippage in conveying system
✓ Servo motor calibration drift
✓ Mechanical wear in cutting assembly
✓ Software programming errors
✔ Tighten drive belts and check tension weekly
✔ Recalibrate servo motors quarterly
✔ Inspect cutting dies for wear patterns
✔ Verify bag length parameters in control panel
Quality Control: Implement statistical process control (SPC) with hourly measurements.
✓ Voltage instability
✓ Overheating components
✓ Mechanical binding
✓ PLC program issues
✔ Install voltage stabilizer (±5% tolerance)
✔ Clean heat sinks on drives and motors
✔ Check all bearings for smooth rotation
✔ Reset PLC to factory defaults and reprogram
Performance Tip: Schedule thermal imaging scans annually to detect hot spots.
✓ Web tension fluctuations
✓ Drying ink smudging
✓ Worn registration sensors
✓ Improper plate mounting
✔ Install web tension controller
✔ Optimize UV curing settings
✔ Clean/replace optical sensors
✔ Verify plate alignment with test runs
Color Management: Standardize ink viscosity checks every 4 hours.
✓ Voltage spikes or overheating damage motor drivers.
✓ Dust accumulation or misaligned couplings restrict motor movement.
✔ Install surge protectors and ensure proper cooling for high-speed mango bag production.
✔ Clean gearboxes and apply food-grade lubricants; realign drive shafts.
✓ Wire tension too loose/tight
✓ Misaligned wire guides
✓ Dull cutting blades
✓ Wire spool issues
✔ Calibrate wire tension to manufacturer specifications
✔ Realign wire guide tubes monthly
✔ Replace cutting blades after 50,000 cuts
✔ Ensure wire spools rotate freely without snags
Key Maintenance: Lubricate wire feed mechanisms weekly with light machine oil.
Extend your mango fruit protection bag making machine lifespan with this maintenance plan:
• Clean glue application system
• Verify emergency stops
• Check air pressure (5-6 bar)
• Lubricate all moving parts
• Inspect electrical connections
• Test safety interlocks
• Replace wear components (blades, gaskets)
• Calibrate measuring systems
• Backup machine parameters
Contact your fruit cover bag making machine supplier for:
⚠ Unusual vibration or noises
⚠ Error codes that persist after reset
⚠ Hydraulic/pneumatic leaks
⚠ Electrical component failures
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Proper troubleshooting of your mango bag making machine can reduce downtime by up to 70% and improve product consistency. By addressing these common issues proactively, you'll maintain optimal production of high-quality mango protection bags.
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