Mittel TSC welding machine handles pipes up to 2,000 mm in diameter and creates joints as strong as the bulk pipe material. The system precisely measures temperature along the entire weld, not just in one spot. The unit has about twice the power of previous versions and is insensitive to voltage variations. It logs weld position using GPS and can send files to computers via Bluetooth.
Mittel, http://www.mittel.se/EN/