What is Heller?

Without more context, it is difficult to determine the exact technology referred to as "Heller". It could refer to various things, including: * **Heller (company):** A German manufacturer of machine tools, particularly CNC milling machines and machining centers used in the automotive, aerospace, and general engineering industries. * **Heller Reflow Oven:** Used in electronics manufacturing for soldering surface mount components to printed circuit boards (PCBs). * **Heller Machine:** In general, it could simply refer to a machine made by the Heller company, which could cover a broad range of industrial equipment. Therefore, the precise technology and its common usage depend on the specific context.