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The pelton runner had extreme wear and damage from pumice in the waterflow. Large pieces were broken off multiple buckets and small chunks were worn off others. Ebco welded the large pieces back onto the effected buckets and, using Cold Metal Transfer welding, built-up the worn sections. The buckets were then CNC machined back to the designed profile. The repaired runner was heat treated to relieve any heat stress from welding and then checked for its dynamic balance. Finally, a 3D laser scan was made so that all future refurbishments could be made against a known model with no additional resources required from the client.

Hired to refurbish one of the Kaplan turbines at a hydro-electric power plant in Western Canada, our client had two options: spread the work among several suppliers or find one trustworthy supplier who could do all the refurbishing work on a 4-meter-diameter turbine with more than 100 components, all on a strict deadline. Ebco’s capacity for over-sized equipment, shop and machines made us the obvious choice.

Our other huge advantage? We could handle all the parts ourselves. Our client didn’t have to worry about managing several different suppliers, greatly simplifying project logistics.