Plymouth Spring Company, Inc. was approached by a customer from the lawn care industry to pin roll 2 to 4 million stainless steel shafts per year. We started by pin rolling the 1.150″ long shafts which had an outside diameter of .002″. Then we tumble polished and heat-treated the 302 stainless steel shafts to a Rockwell hardness of 52. Throughout the entire process, we held tight overall tolerances of ±.005″ and a straightness tolerance of .002″. The shafts were dimensionally inspected and then shipped to the client’s Riviera Beach, Florida location.

Precision Pin Rolling
Precision Pins
Pin Rolling Manufacturing

To learn more about this pin rolling project, see the details below. For more information about our other services, please contact Plymouth Spring.

Project Highlights of Precision Pin Rolling:

Product Description These Stainless Steel Precision Pin Shafts Are
Used Within a Sprinkler Head.
Capabilities Applied/Processes
    Primary:
  • Pin Rolling
  • Manufacture Pin w/ .005" Radii

  • Secondary:
  • Tumble Polishing
  • Heat Treatment
  • Full Hard to 52 Rc
Overall Stainless Steel Shaft Dimensions Length: 1.150"
O.D.: .0625"
Tightest Tolerances ±.0002"
Straightness of .002"
Material Used 302 Stainless Steel
Surface Finish 16 Micro Inch or Less
Testing / Inspection Dimensional Inspection
Industry for Use Lawn Care
Volume 2,000,000-4,000,000 Per Year
Turn Around Time 2-3 Weeks
Delivery Location Riviera Beach, Florida
Standards Met Customer Supplied Print
Product Name Stainless Steel Shaft
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