Which welding machine is primarily known for being portable in SMAW?

In the context of Shielded Metal Arc Welding (SMAW), the welding machine primarily recognized for its portability is the DC Generator. This type of welding machine is designed to be lightweight and compact, allowing for easy transport to various job sites, making it ideal for fieldwork. DC Generators provide a steady DC output, which is crucial for producing high-quality welds and ensuring stable arc characteristics.

While other machines like rectifier units and AC polyphase units can also be used in SMAW, they tend to be heavier and less portable, making them more suitable for stationary applications or environments where the equipment does not need to be frequently moved. The solar welding device, while innovative, does not typically serve as a primary source for traditional SMAW processes, further emphasizing the advantage of the DC Generator in portability and functionality.