Tip Molding Machine Repair and Troubleshooting

Medical catheter tip molding machines are sophisticated devices used to manufacture the tips of medical catheters to ensure their safety and functionality in clinical use. Repair and troubleshooting of these machines is critical to ensure the continuity of the medical device manufacturing process. Below are some basic maintenance and troubleshooting steps:


Common Troubles and Troubleshooting

  1. Equipment does not start

Check items.

Are power outlets, switches and cables intact.

Verify that the power supply is normal, including voltage and current.

Check that any safety switches or emergency stop buttons have not been triggered.

Check the unit’s instruction manual to verify that there is a specific startup procedure.


  1. Unstable or incorrect molding temperature

Check item.

Is the temperature control system calibrated correctly.

Sensors are working properly and not damaged or disconnected.

Heating elements are in good condition, not broken or worn.

The temperature controller is set correctly.


  1. Molding quality problems

Check item.

Is the mold clean and free of residue or damage.

Whether the material is heated according to the specified temperature and time.

Check that there are no air bubbles or impurities mixed into the material.

Verify that the lot and type of material meets specifications.


  1. System leakage or pressure instability

Check item.

Check all pneumatic or hydraulic system connections to ensure there are no leaks.

Check that pressure gauges and regulating valves are working properly.

Make sure all seals are not worn or damaged.


  1. Automation system malfunction

Check items.

PLC (Programmable Logic Controller) and other control system software is up to date.

Check that sensors, actuators and servo motors are operating as intended.

Verify that input/output signals are within normal range.

Maintenance Measures

Periodic Maintenance: Perform periodic maintenance such as cleaning, lubrication, and calibration according to the manufacturer’s recommendations.

Specialized training: Ensure that operators and service technicians are properly trained in the operating principles and maintenance procedures of the equipment.

Spare parts inventory: Maintain an adequate inventory of critical components, such as sensors, heating elements and seals, so they can be replaced quickly.

Record keeping logs: Keep a record of the equipment’s maintenance history and operating logs to make it easier to track down problems and prevent future failures.



Repairing and troubleshooting medical catheter tip molding machines requires a combination of electrical, mechanical and software considerations. Maintenance personnel must have the knowledge and skills to ensure proper equipment operation and production continuity. By following the manufacturer’s guidelines and establishing an effective maintenance program, downtime can be minimized and product quality assured.

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