Common problems and solutions of injection molding machines

Common problems and solutions of injection molding machines
As the key equipment for the production of plastic products, the stability of injection molding machines is essential to production efficiency and product quality.The following are some common problems that may be encountered in the use of injection molding machines and their solutions：

Mold opening failure: The failure of the injection molding machine to open the mold may be caused by the failure of the directional valve, insufficient pressure or mechanical jamming.The solution includes checking the valve body, adjusting the opening pressure, and overhauling the crank arm.

Non-ejection: It may be caused by the manipulator having no ejection signal, the mold opening is not completed, or the solenoid valve fails.It is necessary to check the manipulator, confirm the completion of mold opening, and overhaul the solenoid valve.

The pressure does not rise or the heating is slow: Possible reasons include that the pressure regulating valve is not tight enough, there is air inside the hydraulic cylinder or the pressure regulating valve fails.The solution is to remove it for inspection, exhaust or overhaul.

Not ejecting: it may be caused by poor operation of the solenoid valve, poor pressure regulating valve, clogging of the nozzle by external objects, or the nozzle is too cold.It is necessary to check the solenoid valve, safety valve, nozzle and temperature of each stage.

No feeding: it may be caused by poor solenoid valve, poor back pressure adjustment, poor pipe temperature, or melt glue movement but no feeding.Checking the back pressure valve, temperature and screw status is the key to solving this problem.

Abnormal electric heating: it may be caused by a faulty power breaker, a broken heating coil, a broken thermocouple, or a short circuit or grounding of the wire.It is necessary to replace damaged parts and repair wires.

Oil temperature is too high, oil leakage: it may be caused by ultra-high operating pressure, oil pump wear or oil viscosity is too high, insufficient oil volume, blocked cooler or loose cylinder screws.The solution includes adjusting the pressure, adding enough hydraulic oil, cleaning the cooler and tightening the screws.

Our after-sales service commitment
As a professional injection molding machine sales company, we know the importance of after-sales service.The following is the reasonable after-sales service we provide you with：

Professional technical support: We provide a professional technical support team to answer any technical questions you encounter in the process of using the injection molding machine at any time.

Quick response service: We promise to respond and provide solutions as soon as possible after receiving your service request to ensure that your production is not affected.

Regular maintenance reminders: We will regularly remind you to carry out necessary maintenance according to your equipment usage to extend the life of the equipment.

Parts supply guarantee: We guarantee to provide original parts to ensure that the most suitable parts can be used for the repair and maintenance of equipment.

Operation training services: We provide operator training services to help your team better master the operation and maintenance skills of injection molding machines.

Customized solutions: According to your specific needs, we provide customized solutions to meet your production needs.

Through these services, we are committed to providing you with high-quality injection molding machines and perfect after-sales service to ensure your production efficiency and product quality.By choosing us, you will get not only an injection molding machine, but also a reliable partner.