Welding rotators is a reliable mechanical means to rotate cylindrical vessels. Across a variety of sectors, conventional and self-aligning turning rollers have been designed to suit various sizes of weldments. Particularly if a weldment is cylindrical, whether it's small diameter piping or even large industrial piping vessel, rotators is a necessity. It makes a huge difference to most welding process.
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Paring Drivers and Idlers
Drivers and Idlers work together to deliver a high-quality welding as well as to minimise welder injury risk, that is why a turning roll driver(TDRA) must be paired with a turning roll idler(TIRA). Theoretically, one turning roll driver torque is capable of rotating work-pieces three times its static weight while a turning roll idler has to accommodate the remaining static weight.
The work-piece stiffness determines the spacing. While a spacing less than 20ft (6m) is generally recommended, thinned walled work-piece favours closely spaced turning rolls and thicker walled work-piece requires turning rolls to be spaced further apart.
Customisation
In this regard users are required to think about Centre of Gravity (COG), size and Surface Area. That includes but not limited to:
Heavy duty chassis design
Number of Wheels
Wheel Sizing
The Control System
For more information, please visit Benchtop Welding Positioner.
Fitting a Wheel
The right wheel is essential in preventing work-piece slippage and maintaining constant welding speeds. Three types of wheels are common: rubber wheels, steel wheels and PU wheels.
While selecting a wheel, always keep in mind the surface area one has to roll on, operating temperature and the wall thickness of the work-piece. PU Wheel is favoured over rubber and steel ones when desired temperature or work-piece engagement can't be met.
In structural fabrication orienting the beam segments for processing can be a difficult task. With limited availability of overhead cranes and lack of space for forklifts many fabricators have to wait and wait for their turn in order to reposition their beam for further processing. That is where a beam rotator comes in to save the shop time and money.
What is a Beam Rotator?
A beam rotator is a device that through support slings or chains can lift and rotate heavy structural beams to various positions to assist welding and assembly operations. Available in a variety of different sizes and styles they are operated by the fabricator or welder and can be positioned throughout the shop conveniently for performing more detailed work.
4 Reasons Why You Need a Beam Rotator?
In a busy structural fab shop there is always a need for any lifting device available and often that means a long wait. Waiting while you pay your welder, fitter and foreman for an available overhead crane, boom crane or forklift is a waste of time and money. Further once your people have to wait they tend to wander off to use the restroom, get coffee etc adding even more time to a costly project already. With a Beam Rotator they do not have to wait at all. They simply lift, tilt, and rotate the beam as needed, when needed in order to present the proper surface at a comfortable height for the welder.
- Immediate Availability: Beam rotators are available immediately to your welders and fitters reading down time.
- Speed to Rotate: With a Forklift or Crane rotating the beam can take 5 minutes or more and be a hazardous operation. Using a Beam Rotator takes just a few seconds to safely and properly rotate the beam for the next operation.
- Comfortable: Reduce strain and increase productivity using a beam rotator by positioning the beam to a comfortable position for welding. No more upside down and uphill welds!
- Safety: As Beam Rotators support the full beam during the rotating process you are not fearing the beam slipping off the forks of a forklift or of rigging snapping and dropping the beam inadvertently.
BendmakUSA offers 2 unique styles of Beam Rotators in a variety of sizes. The Belt Style and the Chain Style rotator. The belt style provides protection from gouging or scratching beams during the turning process whereas the chain style provides heavier capacity and a simpler design. Contact us for more information about Bendmak's ZR and HR Series Beam Rotators.
