| Application:
Repair of rotors used in the power generation industry.
Process:
The system was fitted with TIG, Plasma, MIG and submerged arc welding capabilities.
Capacity:
Rotors up to 50ft (15 m) long.
Rotor diameters up to 12 ft (3,650 mm).
Rotor weights up to 200 tons (180,000 kg).
Description:
The weld head locator is illustrated with a king pin base and is fitted with a complete set of plasma welding equipment.
The weld head locator is used to hold a welding head and to permit the head to be located at various points over the weld area. The head is mounted on the end of a boom that can be lifted and lowered; the boom can also be extended out to reach over the part to be welded.
This weld head locator features machined ways with hardened and ground roundway tracks. This means that any of the movements, either elevation or reach, can be used as a precision travel axis.
Elevation is powered using a variable speed DC motor driving a leadscrew. Safety facilities are provided to ensure operator safety and prevent a rapid vertical descent of the boom. Boom reach is manual with a locking screw but can be powered using rack and pinion drive if required.
The precision design of the weld head locator makes it an ideal tool for use with TIG and plasma welding operations; its weight carrying capacity makes it also suitable for use in MIG and submerged arc applications.
Various options are available including the king pin base, which is illustrated, as well as travel cars and special motors. Other models are available with different elevation and reach dimensions and different weight .
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