In the realm of injection molding, securing molds with a magnetic quick mold change system has become a popular choice due to its efficiency and ease of use. However, a common question arises: can magnetic platens withstand the high temperatures associated with molding processes?
Understanding Magnetic Platens
The platens utilize rare-earth permanent magnets internally. These magnets have strong magnetic fields, which provide robust clamping force, making them ideal for quick mold changes and increased operational efficiency.
Temperature Considerations of Magnetic Platens
It is well-known that permanent magnets are sensitive to high temperatures. Exposing them to temperatures beyond their rated tolerance can result in demagnetization, reducing their effectiveness and lifespan. Therefore, when dealing with injection molds that operate at elevated temperatures, it is crucial to select magnetic platens designed to withstand these conditions.
Grade according to temperature resistance:
- 0-120°C Grade: Suitable for molds with surface temperatures ranging up to 120°C, ideal for many standard injection molding applications where moderate heating is involved.
- 0-150°C Grade: Designed to withstand higher temperatures up to 150°C, these platens are tailored for molds used in processes requiring increased heat tolerance.
- 0-180°C Grade: Engineered for molds operating under extreme conditions with surface temperatures up to 180°C, ensuring reliable performance even in demanding high-temperature molding environments.
Temperature Limits
It is important to note that exceeding the specified temperature limits can compromise the performance of magnetic platens. For instance, if the mold surface temperature consistently exceeds 180°C, it is advisable not to use magnetic quick mold change system due to the risk of magnet demagnetization and potential loss of clamping force.
Conclusion
As magnetic platen supplier, we provide reliable solutions that meet the diverse needs of the injection molding industry. Our range of temperature-resistant magnetic platens ensures that regardless of your mold’s operating conditions, you can achieve secure and efficient mold fixation.
For more information on our magnetic platens and how they can optimize your injection molding processes, contact us at export@hvrmagnet.com. We look forward to supporting your production needs with our advanced magnetic technology solutions.
