Cold Root Rolling is the process of burnishing the root radius of a previously cut thread, in a Rotary Shouldered Connection.
Some studies have noted laboratory results of up to 27 times better life attributable directly to cold root rolling process.
For almost 60 years, CJWinter has been an industry leader in supplying thread rolls and thread rolling tools globally. CJWinter has used that experience to design tools specifically for Rotary Shouldered Connections in the Petroleum Industry. We believe this is the only self-contained, commercially available tool that will cold root roll threads compliant with ANSI/API Specification 7.2:2008 and ISO 10424-2:2007, in accordance with NS-1 cold root rolling procedures, and DS-1 Third Edition, Volume 3.33.6. Our in-house engineering staff is always available to assist with any technical manufacturing situation. Contact us today to request a compliance consultation with our engineering staff.
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