Working with Us

Working with Diamond-Roltran

Request for Quote (RFQ)

Diamond Roll-Rings® can solve numerous slip ring issues and can be built to a wide variety of performance and package specifications. The quickest way to answer if Roll-Rings are right for your application is to provide us with some basic specifications. Our Engineers will evaluate your specifications and will reply, usually in 48 hours. To get started, please submit a REQUEST FOR QUOTE.

Non-Disclosure Agreements (NDA)

While it is not necessary for us to have an NDA in place to provide an estimate, NDAs are very common for our customers. We will work with you to protect all proprietary information.


The following are the minimum specifications necessary for us to provide a ROM (Rough Order of Magnitude) estimate for your application. Please click on REQUEST FOR QUOTE at any time when you're ready to begin working with us.

Basics to get started…

  • Number of channels (for example, a 110V AC circuit would require two channels)
  • Maximum current, maximum voltage and maximum resistance for each channel
  • Maximum length and diameter of the final package including clear bore
  • Maximum rotational speed
  • Expected operational life
  • Estimated order quantity
  • Application environment description


Outline Drawings/Models

Outline drawing and STP files are available. Diamond Roll-Ring Engineers use SolidWorks exclusively.


Quotes will include the lead time to ship your order. Depending on the project scope and discussions, Non-Recurring Engineering or Additional Testing may be separately listed.

Purchase Orders

Purchase orders can be emailed to or to your primary contact, whichever is most convenient. We will acknowledge your purchase order with an expected ship date within five business days.


Diamond Roll-Rings are shipped with a standard Certificate of Conformance referencing your purchase order and the specification used to build your Roll-Ring. Any additional can be supplied on request at the time of order. 


All Diamond Roll-Ring products ship with a warranty against defects in workmanship, performance and the need for any field maintenance under specified operating conditions that starts from the date of shipment. Extended warranties are available as well. 


Diamond-Roltran, LLC

59 Porter Road
Littleton, MA 01460

+1 978-679-3125

Roll-Ring® Applications