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Centrifuge Maker Puts A New Spin On Production, Doubling Throughput Potential With LJ Welding Cell

Posted by Ryan Holt, P.Eng on Sep 1, 2016 3:58:11 PM

LJ Welding Automation


A customer required a large positioning system rated to 20,000 lbs max payload for holding, tilting and turning heavy centrifuge parts during a fabrication process, along with a high deposition welding process, all fully integrated. They needed costs to be minimized due to budget cutbacks, but needed the equipment for production demands. An economical, customized, centrifuge welding and handling system was required to meet these criteria and the customer knew that LJ was the best suited company in the industry to meet this challenge.

The Old Way

The customer was using old positioning equipment with a limited range of motion, that could not meet their fabrication needs because they could not position the centrifuge cover workpiece in a way that was required.  As a result, they were forced to handle parts unproductively, with multiple extra steps in the process.  Furthermore, they were unable to make use of high deposition processes like submerged arc welding (SAW) to increase their welding efficiency.

New Process

The customer needed a manufacturer that could engineer a system and provide 3D animations to fully illustrate the proposed process.  The 3D animations included a welding torch reach study and simulation to ensure that the overall system would accommodate all required handling and welding sequences. It was discovered during the engineering phase that some crucial design features needed to be included to ensure the fixture, welding positioner and welding system would work the way the customer needed, and revisions to the design were succesfully implemented.  Full engineering models were provided to ensure the customer got exactly what they needed, and once drawings were signed off by the customer, LJ wasted no time and began manufacturing of the custom welding cell.

Specifically, the system included:

  • 12' x 12' Column & Boom SAW Welding Manipulator utilizing a Miller DC650 SAW welder
  • Powered Cross Slides: LJ's best in class powered cross slides for welding were utilized for fine tuning of position of weld head during set up, and welding was easily controlled through a joystick controller
  • SAW Camera System: for full color remote viewing of difficult to access weld locations and maximum worker safety, including laser pointer set shown below- an economical and easy way to track seams remotely!
20000 gear tilt welding positioner
  • Custom Fixture:
fully designed for easy and secure mounting of the centrifuge cover to the gear tilt welding positioner.

gear tilt welding positioner 







The Results

  1.  LJ was able to design and build the system which exceeded their specifications while making use of free issue parts from customer to meet their tight budget constraints.
  2. Intuitive, user-focused turn-key welding cell that will be able to handle very large parts efficiently and safely.
  3. Customer's final product, training & onsite commissioning included and completed within days of delivery
  4. Welding deposition rates were boosted to 15+ lbs/hour range, approximately doubling the customer's through put potential.

Have a custom application in mind and need a starting point? We can help!

Automated welding demonstration

welding positioner with column boom manipulator

Topics: Case Studies, Productivity, Submerged Arc Welding, Research & Development

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Posted by Ryan Holt, P.Eng
Ryan is a Partner and the Chief Operations Officer for LJ Welding Automation.
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Whether you need a welding positioner, pipe stands or even a custom welding manipulator for your next job, LJ equipment makes sure your welding application is done right the first time.Whether you need a welding positioner, pipe stands or even a custom welding manipulator for your next job, LJ equipment makes sure your welding application is done right the first time.

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