Hot runner heaters are produced by placing a nickel-chromium resistance wire into a tube made of nickel steel, which is filled with magnesium oxide powder for efficient heat transfer. The heaters have strength and can therefore be bent into any shape.
Types of Hot Runner Heaters
There are several types of hot runner heaters, including coil heaters, nozzle heaters and manifold heaters. Compact and versatile, coil heaters have coiled heating elements that provide uniform heat distribution. They are typically used for nozzle heads and gate bushings. Nozzle heaters are designed to be installed in the nozzle of an injection molding machine and provide direct heat to the molten plastic. Manifold heaters are used to heat the manifolds of hot runner systems, ensuring proper temperature control in multiple cavities.
Maintenance of Hot Runner Heaters
Proper maintenance is critical to ensure optimal performance and longevity of your hot runner heaters. Regular inspection and cleaning of heaters, nozzles and manifolds is critical to prevent contaminant buildup and maintain consistent heat distribution. It is also important to follow the manufacturer's recommendations for temperature settings and usage limits to prevent overheating and damage to the heater. Regular replacement of worn components, such as heaters and thermocouples, is also necessary to ensure reliable operation and prevent production downtime.
Lantronix can select the right type of hot runner heater for your specific application and production needs.
1. Sheath temperature up to 800oC
2. Higher watt density
3. Built-in "J" (or) "K" type thermocouple
4. Available in the following cross-sectional areas: 3mm X 3mm, 3.3mm X 3.3mm, 3.7mm X 3.7mm, 4.5mm X 4.5mm, 4.2mm X 2.2mm, 3.2mm X 1.8mm, O 1.8mm, 3.3mm, 3.7mm.
5. Robust and durable structure
6. Can be customized according to customers' requirements
Hot runner heaters offer several advantages over traditional cold runner systems. First, they eliminate the need for runners, which are waste materials created during the injection molding process. This can result in significant material cost savings and a reduced environmental impact. Second, hot runner heaters reduce cycle times because there is no need to wait for runners to cure before ejecting parts. This increases productivity and throughput. Third, hot runner heaters provide superior temperature control, which ensures consistent part quality and reduces the likelihood of defects such as warpage and dents. In addition, hot runner systems allow for greater design flexibility because they support multi-cavity molds and complex part geometries.
1.Mold
2.Nozzle heating
3.Gate bushing
Hot runner heaters are used in a wide variety of industries including automotive, packaging, consumer products, medical and electronics. They are ideal for producing high-quality, complex and tight-tolerance plastic parts because they minimize material waste and reduce cycle time. Hot runner heaters are commonly used in applications such as automotive bumpers, medical device components, bottle caps and electronic housings.
1. watts and volts
2. Cross section
3.inside diameter, outside diameter and length
4. Termination type
5. Specify thermocouple type "J" (or) "K" grounded (or) ungrounded, if required
6. Number of coils in L1, L2 and L3
7. Total coil length TL, L1, L2 and L3
8. Connection lead options, lead lengths and lead orientations
9. Special model configuration drawings or samples
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