Our Roll On Roll Off® system is continually evolving to meet new challenges with more and more complex parts.

Over the past year, we have refined our ability to compensate for long parts and give our tools up to 0.500” of separation to allow for Roll On Roll Off® to be utilized on parts that were previously limited in length. This system is adaptable and can be removed easily without having to change any setups.

With a simple removal of a few screws, your tool will be able to pop open to assist in setup. This cuts down the need to remove the tool from your machine saving you valuable time. The flange mount system is more rigid while also not limiting length for threads larger inside of the range of the Fette tool.https://fette-tools.com/ https://www.geneseemfg.com/


Our customer, a tool manufacturer of their own product, initially inquired 4 months before the tools were delivered to them.  They make their product out of 4340 steel that comes in around 35 Rockwell C.  They have seen a growth in business of 30% for the last 6 years and are running bar feed lathes, with a current capacity of 7 machines.  Initially, the product line that was submitted contained 22 parts, with 9 of them sharing the same 1”x12 thread.  The longest of these threads was 8”, thus creating the necessity in a Roll On Roll Off® tool with extra compensation.  The design, pictured, added external springs to the Roll On Roll Off® device to allow the head to make the threads at that length and avoid “popping open” as the traditional method requires and necessitates a closing solution.  Turning Concepts’ idea was to never let the head open to begin with, so there would be no need to facilitate a closing solution.

With the review of the customer’s parts, the F4 and F45 thread rolling heads were selected as a test tool on a single machine to qualify the feasibility and the reduction in cycle time.  The threading cycle for single point cutting the customer started with was 3 ½ minutes.  The customer’s floor space was limited as they are running bar feed machines, so the possibility of drastic reduction in cycle time through the addition of thread rolling is appealing to the customer.  The customer selected 1 machine to add a Roll On Roll Off® tool for both their 1”x12 thread and the 3/4X16 thread accompanied by a Genesee hollow mill to further reduce their cycle time in preparing the workpiece to the correct pre-roll diameter for rolling.  The Genesee hollow mill is an encapsulation tool that feeds at 200 SFM and makes a perfect cut in a single pass.  With this combination of tools, a finished thread is completed in 2 passes and will not require deburring after the part is completed. 

The tools were delivered within 4 months of the initial inquiry from the customer and per their request, on-site support was provided.  Threads were made in the first 4 hours of on-site support and the process was improved until a current thread cycle time of less than 60 seconds for both tools were achieved for 8” of thread.  This improvement in cycle time will allow production gains in a single machine that can be duplicated on their 7 additional machines through the end of the year.  The process is ongoing and further improvements may be seen throughout this development process.  The initial on-site support has been supplemented through email and phone support from both Turning Concepts and Genesee for both the hollow mills and the thread rolling tools.  With the quick reaction time from our experts, the customer has been running parts since the installation without a problem from our quick delivery Roll On Roll Off® tool adapted to meet the customer’s demand. 


Roll On Roll Off®️ Thread Rolling system can make NPT threads

Since the RORO system doesn’t allow the rolling attachment to pop open, the system by design is error-proofed. Failure to pop open eliminates the highest risk of damaging the rolling attachment.

It can produce a wide range of thread types, including NPT. These threads are used in a wide range of industries – plumbing and pipe fitting, power plants, gas and oil, chemical and manufacturing.


We have rolls in stock. What size do you need? If you need them coated, we have coated rolls in stock too. If we don’t have the size you need coated, we can get them coated.

Call or email us to find out availability.


The last step in proper rolling is executing and adjusting after first test roll.

Step 1 – Minor Dia. and Pitch Adjustment
Loosen 3 nuts and adjust tool +/-. One witness line is .004”on Minor. Center Pitch.

Step 2- Major Adjustment-
Adjust pre-roll dia to the mean of the Major. .001” change in pre-roll dia. = Major dia. change of .003”

Step 3- Adjust chamfer
Adjust for desired result. Keep chamfer min of .010 under Min Minor. Material will “rollup about 15’. Alternative – cut after rolling.


The fourth step in proper rolling is setup of the Process.

Using sacrifice material- program a .600” length to test roll a .500” long part, Insure the material will not hit faceplate.

Pre-turn for rolling = Mean of the Pitch or .465”

30’ chamfer starting at .010” +0.0 -.020’ under the Min. Minor

 Feed rate is Pitch less .001” or a proprietary calculated material dependent amount. Roll on and off at the same federate.

Sync tap (G84) works best. Std Tapping cycles and G34 with M03,04 spindle reverse- no dwell.

SFM- 125 SFM for low carbon steels, 100 SFM for SS and hi-nickel material.


The second step with proper rolling is the Tool Setup.

Mill a .250” to 375” flat on the shank within .500” of the head if not already there.

The RORO tool is assembled and setup. The rolls are set with a gauge pin to the max Minor less a proprietary calculated amount based on the material.