Izhevsk-based BUMMASH, part of the Siberian Industrial Group holding, has shipped the first rings made on its new ring-rolling line. The holding’s press service said.
PHOTO SOURCE: Siberian Industrial Group.
The machine is designed to produce rings with an outer diameter of 650 to 3,500 mm. During rolling, the workpiece is shaped to the required diameter, height and wall thickness, tolerances specified in the drawing are maintained, and an agreed machining allowance is left for subsequent processing. The line is designed to work with carbon, low-alloy, structural, stainless and tool steels.
Nikita Makarenkov, commercial director of Siberian Industrial Group JSC, noted that the plant had produced rings before, but the new equipment makes it possible to form the workpiece’s key dimensions during rolling.
“We produced rings before. With the new machine, we set the outer diameter, height and wall thickness during rolling, maintain the tolerances specified in the drawing and leave an agreed allowance for machining. This expands the range of domestically produced workpieces available to Russian machine builders, including for replacing imports. We are currently focusing on mastering the combinations of dimensions, steel grades and mechanical properties for which we have already received requests from equipment manufacturers,” Nikita Makarenkov said.
BUMMASH is located in Izhevsk, the capital of the Udmurt Republic. The company produces forgings, shaped and centrifugal castings, as well as units and equipment for heavy engineering.


