Girth Welders

Cirotech is a series of self propelled 3 o clock welding equipment primarily developed for on site erection of large storage tanks, silos, blast furnaces, and similar cylindrical objects.

It is available as a single – side version and a double side version. Usually designed to travel on the top edge of the tank shell.

As there are different ways of building tanks, one machine in the series is designed to travel on a rail which is temporarily fixed to the shell or on a stand – alone ring outside the shell


Quarter Safety – CE approved

The operator of each machine (if double side version ) rides in a cabin, where he supervises and controls the welding process with the control panel within easy reach. The cabin, whose floor level under the carriage is variable to suit the height of the plate, is built asa cage to give the operators maximum safety and comfort. For weather protection the cage can be covered by curtains. The cabin of a double side machine is equipped with step ladders and a joining bridge at the top to facilitate for the operators to climb on board. The bridge also has guard rails for the safety of the operators

Submerged ARC Welding

The Machine is usually equipped for SAW with single wire. SAW with twin wires is, upon request, available as an alternative. The flux is supplied from a flux hopper and supported in the welding position by an endless rubber belt from where it may be collected / sucked up after welding and re – circulated. A flux recovery unit can be included.