Vacuum Tube Welders

Unitherm enjoys the distinction of having been the largest manufacturer of HF Induction Welders based on vacuum tube (Triode Valve) technology, for over two decades. 

Our Vacuum Tube welders have remained most popular with buyers, which makes Unitherm the highest selling brand in India.

Having performed more than 500 installations of Vacuum Tube Welders in India and abroad, we have immense expertise in this technology.

This technology has been rendered obsolete due to the advent of Solid State technology and is gradually loosing popularity.

Vacuum Tube Welders

Vacuum Tube Welders

Vacuum Tube Welders

Vacuum Tube Welders