Multiplaz Welder, Cutter Using Tap Water
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The Multiplaz 3500 is a multipurpose tool that uses a unique welding technology.

Using ordinary tap water converted to plasma 14400°F (8000°C), Multiplaz 3500 can weld, solder, braze, harden, and cleanse metals including steel, aluminum, copper, cast iron, bronze and other metals, according to the company.

The tool is compact and portable. A concentrated plasma stream allows users to cleanse metal corrosion and to precisely heat only the specific part of a complex unit (i.e. to heat a bolt without affecting the nut), the company says. The tool can cut holes of any shape in tiles without producing dust. The absence of expensive consumables, including special electrodes and gas bottles with propane, acetylene or oxygen, allows for significant savings, according to the company.