Case Study: Custom Stainless Steel Suction Roll
This duplex stainless steel suction press roll was custom manufactured for a papermaking machine application. Beginning with a customer drawing, we developed a manufacturing plan. After centrifigual casting and heat treating the suction press roll, made from duplex stainless steel "Alloy 86", we used a combination of machining and drilling to finish the product.
First, we rough turned the suction roll. We then rough bored the suction roll, followed by finish boring and turning. The suction roll was then gun drilled with the specified hole diameters and orientation for the application.
The final suction roll featured a 63 RMS surface finish, measured 60 inches on the outside diameter, 53 inches on the inside diameter and measured 394 inches in length. The entire duplex stainless steel suction roll shell weighed 54,303 pounds.
To guarantee the integrity of the "Alloy 86" duplex stainless steel suction roll, a quality inspector performed in-process testing. Additionally, we conducted chemical analysis, dye penetration testing, tensile testing, and Brinell hardness testing. When the part had passed all tests and met all required standards and specifications, we packaged and delivered it to our North American Papermaking OEM client for delivery to a US Paper Manufacturer.
To learn more about this project and related services, please contact us.
|Product Description||This custom manufactured suction press roll is used within a papermaking machine application.|
|Capabilities Applied/Processes||Centrifugal Casting|
Non-Destructive Testing (LPI)
|Overall Part Dimensions||Finished Size:|
|Material Used||Sandusky Duplex Stainless Steel "Alloy 86"|
|Surface Finish||63 RMS|
Cast to Rough Dimensions to be finished by Turning
• Shake Out
• Heat Treat
• Rough Turn
• Rough Bore
• Finish Bore
• Finish Turn
• Gun Drilling
• End Drilling
|In process testing performed||Chemical Analysis|
In Process testing Performed by Qualified Inspector
Dye Penetrant Testing - 100%
Brinell Hardness Testing
|Estimated Part Weight||54,303 pounds|
|Industry for Use||Papermaking|
|Delivery Location||US Papermanufacturer via North American Papermaking OEM client|
|Standards Met||Sandusky Supplied Customer Approval print|
|Product Name||Suction Press Roll Shell|
|Centrifugal Casting Benefits||Ensures O.D. and I.D. are Inherently Cylindrical & Concentric|
No Weld Seam