Cold Root Rolling Blog


Recent Posts

Cold Root Rolling vs. Burnishing

Posted by CJWinter on Jan 7, 2020 8:00:00 AM

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Topics: Cold Root Rolling, burnishing

Advancements in Cold Root Rolling and Its Impact on the Oil & Gas Industry

Posted by CJWinter on Oct 14, 2019 1:23:35 PM

The petroleum industry relies heavily on drill strings— i.e., a series of pipes and piping components that are threaded together. These assemblies are highly complex, involving many critical parts, each of which must be adequately maintained to ensure proper function. However, as drill strings are often used in extremely harsh environments, performing the required maintenance can be challenging, prompting rising demand for connections with greater durability and longer service lives.

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Topics: Cold Root Rolling

Cold Root Rolling: Process, Applications & Benefits

Posted by CJWinter on Aug 27, 2019 9:16:58 AM

For almost 60 years, CJWinter has been one of the world’s leading providers of thread rolls and thread rolling tools. These products find application in traditional thread-rolling operation, as well as specialty ones, such as cold root rolling operations.

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Topics: Cold Root Rolling

O-Ring Kit for All Cold Root Rolling Tools

Posted by CJWinter on Mar 19, 2019 8:00:28 AM

CJWinter is excited to announce the newly available O-Ring Kit for both pin and box cold root rolling tools.  

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Topics: Cold Root Rolling, CJWinter

CJWinter and the Benefits of Our Cold Root Rolling Products

Posted by CJWinter on Nov 19, 2018 5:05:12 PM

As offshore drilling becomes more difficult, you and your company are likely looking for ways to minimize damage and extend the life of your threads and tool joints. Without taking preventative measures, your company may be at risk for higher operating expenses.

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Topics: Cold Root Rolling, CJWinter

Maintenance Manual for Cold Root Rolling Tools

Posted by CJWinter on Sep 17, 2018 4:53:35 PM

CJWinter is excited to announce the newly available maintenance manual for cold root rolling tools.  This manual was made based on customer request, and will now be accessible for anyone looking to properly maintain their tools. The manual covers everything important to keeping these tools running like new, and is formatted with helpful pictures and diagrams to make maintenance quick and easy.

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Topics: Cold Root Rolling

Common Cold Rolling Terminology

Posted by CJWinter on Aug 7, 2018 9:51:50 AM

What is Cold Root Rolling? 

Cold root rolling is the process of burnishing the root radius of a previously cut thread, in a Rotary Shouldered Connection or thread profile.   A hardened roll, similar in profile to the thread being manufactured, is placed in contact with the root radius of the tapered thread, and pressure is applied to force the roller to penetrate into the cut surface of the root radius, displacing and cold-forming the thread material.  This deformation cold-works the material, imparting an improved surface finish and compacts and displaces the grains of the root material.

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Topics: Cold Root Rolling, terminology

Why is CJWinter The World Leader in Cold Root Rolling?

Posted by CJWinter on Apr 26, 2018 8:30:00 AM

CJWinter is the leader in the industry when it comes to Cold Root Rolling

There are many reasons why CJWinter has taken over the industry for cold root rolling. For over 60 years CJWinter has been an industry leader in supplying thread rolls and thread rolling tools globally. CJWinter has used the experience to design tools specifically for Rotary Shouldered Connections and Tool Joints in the Petroleum Industry. We believe our tools are the only self-contained, commercially available products that will cold roll threads compliant with ANSI/API Specification 7.2:2008 and ISO 10424-2:2007, in accordance with NS-1™ cold rolling procedures, and DS-1 Third Edition, Volume 3.33.6. 

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Topics: Cold Root Rolling, Fearnley Procter NS-1

The Factors That Impact Cold Roll Wheel Life

Posted by CJWinter on Mar 27, 2018 12:54:15 PM

CJWinter’s Cold Root Rolling division manufacturers Pin and Box cold roll wheels for both standard connections as well as proprietary connections.  These cold roll wheels can last for several hundreds of connections, but the life that an end user will get out of the wheels depends on a variety of factors. In this blog, we will cover some of the major determinants that impact the overall lifespan of a cold roll wheel, and the measures that one can take to extend the life of the wheels.  

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Topics: Cold Root Rolling

Houstex 2017: Continued Success for CJWinter

Posted by CJWinter on Mar 30, 2017 9:00:00 AM

houstex.pngCJWinter highlighted several new products during this year’s 2017 Houstex Convention, which featured hundreds of exhibitors showcasing the latest manufacturing technologies and innovations.

Some of CJWinter’s new products include:

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Topics: Houstex, convention