As a professional heating element factory, our factory has independently developed single-head powder digging and double-head fully automatic powder-scooping machines. So why do some heating elements require powder digging? It improves heater seal quality. All electric heating elements requiring high-quality, reliable sealing, especially those using metal sealing (roll sealing), require the "powder digging" process.
The fundamental purpose of "powder digging" is to create a clean, uniformly deep metal tube area for the sealing process, ensuring the integrity of the seal. It is a Precision Powder Scooping Machine for Heating Tube Sealing. The following is an analysis of specific heating element types that require Mgo powder digging:
I. Classification by Product Performance and Safety Level
1. High Power Density Heating Elements: Heating elements with high power and high surface load have higher internal temperatures and operating pressures. The reliability requirements for sealing are extremely stringent, necessitating powder removal to ensure absolute safety. For example, water heating elements (immersion type), because these environments place a more severe test on sealing performance; any flaw can lead to rapid failure or safety accidents. Air fryer heating elements and electric kettle heating elements are high-powered and rapidly heat.
2. Products with strict certification requirements, such as heating elements that need to pass safety certifications like CE, UL, TUV, and CQC, must have their powder scooping. Certification bodies have strict testing standards for product insulation, sealing, and durability. Consistent powder digging processes are fundamental to ensuring that batch products meet standards.
II. Classification by Industry and End-User Application
Household Appliances: Instantaneous electric water heaters, storage-type electric water heaters, air fryer heating elements
Industrial Equipment: Single-ended heating elements (spring clip type) for injection molding machines, extruders, and meltblown fabric die heads. High operating temperatures and seal failure can lead to equipment damage or production stoppage.
For any heating element manufacturer that values quality, reliability, safety, and brand reputation, "Mgo powder digging" is no longer an optional process, but a crucial standardized step to ensure sealing quality and reduce overall costs (minimizing after-sales failures).
About Davinci Machine: Semi-Auto and Full-Auto Home Appliance Production Line
Foshan Davinci is a professional small home appliance-making machine manufacturer, including the heating element-making machine. We can provide you with a one-stop heating element production line with technical support.
Since 2012, we have assisted customers in setting up rice cooker heating element production lines, electric iron production lines, electric kettle production lines, gas stove production lines, and cookware production in Bangladesh, India, Indonesia, Vietnam, and Turkey.
