Automatic Welding Rotator for Pipe Tank Pressure vessel Boiler 80
Towers, typically made from 709 grade 50 carbon steel, consist of
three or four fabricated sections each three to five meters in
diameter and up to 30-m long. The sections are fabricated out of
smaller, individually rolled cylindrical pieces – called cans –
which are then welded together with multi-pass butt welds made by
submerged arc welding. Smaller can sections are welded on a large
assembly line, called a growing line. After assembling the
sections, they are transported to the installation site, lifted
into place, and bolted together.
Welding requirements for offshore tower construction are impacted
by the tower’s large size and associated nacelles, as well as the
thicker steel required for strength and fatigue resistance. Joining
thicker steel sections with larger weld joints requires using a
greater volume of welding consumables, thus requiring additional
Welding thicker steel sections, however, need not add time to
production. Advanced power sources.The automated welding machine
has joined several cans to produce a turbine tower section.
Advanced welding equipment will let, wind tower manufacturers build
more units faster and have confidence their welds meet the
industry’s stringent requirements.
Wave AC/DC 1000 SD from Lincoln Electric, give operators the
flexibility to control every aspect of the welding output to
provide the best results for an application. Enhanced control over
the welding waveform let operators weld at significantly higher
deposition rates than comparable conventional power sources,
thereby improving weld productivity and reducing costs. In
addition, multiple power sources can be used to weld with multiple
arcs to increase deposition rates and reduce the number of passes
required to fill the joint. This decreases prod-uction time and
consumables, contri-buting to lower overall project costs.
Wheel dia. & width(mm)
Applied job dia
Rubber or PU
- Turning Capacity: 80T
- Roller Diameter : Φ500mm
- Roller width: 240 mm
- Roller surface speed range: 100-1000mm / min
- Loaded Vessel/Tank diameter range: Φ850-5000mm
- Drive unit: AC frequency conversion motor and qualified gearbox.
- Wheel center adjustment (for both drive unit and Idler unit):
Self Align Type.
- Remote control: Remote control pendent with 15mtrs long Cable
- Rotational speeds (variable speed AC drive): Step-less variable
speeds are to be adjusted from min 100mm/min to max 1000mm/min by a
potentiometer on the remote control through inverter.
- Rollers: Polyurethene (PU) lined steel rollers with thickness at
- Motor power: 4kW
The rotator set will usually consist of one drive unit and a few
The idler unit basically consists of a base frame with four rollers
without any power driving, it works with the power unit along with
same speed. The drive unit has four rollers driven by motor &
reduction gearbox. An inverter is installed to give variable speed
for welding purpose. Speed is adjustable on remote box, which
connected by a 15m long cable.