The 4 Most Common Problems and Solutions Regarding Rubber Vertical Injection Molding Machines - Troubleshooting Guide

The three main parts of the Vertical Injection Moulding Machines are mechanical mechanisms, electronic components, and hydraulic systems. Troubleshooting is an important step and guide to help solve the Injection Molding Machine’s problems in a short period of time. As an expert manufacturer of Rubber Vertical Injection Molding Machines, Taiwan Kinki Machinery is offering the 4 most common problems and solutions with Injection Moulding Machines. The most common issues are with the motor and hydraulic pump. You will get more understanding of these problems and their solutions as we discuss the Vertical Injection Molding(Moulding) Machines below.

Vertical Injection Molding Machine Problems and Troubleshooting

Injection Molding Machine Problem and Solution 1: Motor or pump is not running

The motor and the pump are key components of the vertical injection molding machines. They are designed to convert electrical energy into mechanical energy. If the motor and pump are not working, or they do not respond to any tests or no pumping is occurring, then the injection molding machine will not be able to operate.

Possible cause: The power fuse has blown.
Correction action: Please check the fuse and replace it with a new power fuse, as needed.

Possible cause: Poor contact with the electrical connections.
Correction action: Please check that the wire connectors are securely attached to the terminals.

Possible cause: The circuit breaker is tripping because of an overload.
Correction action: Please turn off the machine for 5 to 10 minutes and then try restarting. If the overload circuit breaker trips again, have the voltage checked in order to determine the root cause of the overload.

Injection Molding Machine Problem and Solution 2: The motor or Pump is making a humming sound

If the motor or pump is making a humming sound, it is very likely that the failure is caused by the following problem. You can also find it out by checking injection speed and backpressure.

Possible cause: Bad connection with one of the three AC motor phases.
Correction actions: Please check and ensure all three phases of the motor are connected. Also, ensure that the power supply is well-connected.

Injection Molding Machine Problem and Solution 3: The machine breaks down and cannot start again

If the injection molding machine suddenly stops during operation, please stop the machine from operating right away and check the relay.

Possible cause: Relay triggered because of an overload
Correction actions: The overload relay can be reset for a predetermined time duration. The motor can be restarted after the cause of the overload has been identified and rectified.

Injection Molding Machine Problem and Solution 4: Hydraulic pump has an abnormal sound

Possible cause: The oil filter is blocked.
Correction actions: Please clean the filter.

Possible cause: Inside shaft of the pump is cracked or worn.
Correction action: Please check and repair the pump.

Possible cause: The oil in the tank is below the required level for operation.
Correction action: Please add oil.

Removing the Vertical Injection Molding Screws and Barrels

Removing the injection molding screws and barrels can sometimes be difficult for technicians when repairing Vertical Injection Molding Machines. As a leading manufacturer of Vertical Injection Molding Machines in Taiwan, we are sharing videos to guide you as to how to take off injection molding screws and barrels steps-by-steps. The process is easy enough that you will be able to do most of the connector repairs in your factory. Here is the link below :

Read also: 4 FAQ about Vertical Injection Molding Machines for Power Cord Connector

Small Vertical Injection Molding(Moulding) Machines and Manufacturer

Design, cost, and quality are three critical factors when selecting a Small Vertical Injection Molding machine. Choosing the wrong plastic vertical injection molding machine could cause serious part quality issues. The right Vertical Injection Molding Machine will help save cost, and make your plastic molded parts more precise, which helps to keep your parts more competitive. Taiwan Kinki Machinery is the leading Vertical Injection Molding Machine Manufacturer in Taiwan, providing a total Rubber Injection Molding(Moulding) Machines solution, especially injection molding machines for the automotive industry and injection molding machines for power cords or connectors.

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● Sales

● Service

We offer competitively priced, high-quality Vertical Injection Molding Machines! Our machines are recommended by our customers throughout the plastic injection industry, and around the world. Especially for the growing demands of Injection Molding Automotive Parts, you can get a total solution. We hope that you choose Taiwan Kinki Machinery to manufacture your plastic products! Feel free to contact us.

And be sure to check out our website to learn more about our other products at Taiwan Kinki Products

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