Boston Centerless Offers a Wide Range of Stock and Custom Materials

Boston Centerless supplies precision bar materials and pre-production blanks for your machining needs. We can precision grind material to your exact specifications from our extensive inventory. If we do not have the material in stock, we are experts at sourcing a wide variety of materials from high quality mills and distributors. Our team is able to perform our centerless grinding services on raw materials that we procure as well as materials procured by our customers.

The high-grade materials that Boston Centerless procures combined with our grinding capabilities will ultimately reduce your manufacturing costs. The extremely precise straightness and roundness of AccuRod® enables increased feeds and speeds, as well as longer tool life, resulting in lower per part cost. By partnering with Boston Centerless, you can create parts that can be reliably manufactured in large volumes with outstanding OEE. Our precision ground bar materials improve manufacturability and maximize shop throughput for our customers.  In fact, yields are estimated to increase between 30-60% with Skilled Material from AccuRod®.

When partnering with an integrated service provider like Boston Centerless, value-added services become an extension of the precision grinding process – delivering a complete manufacturing solution. Our value-added services include heat treating, straightening, laser marking, and material testing and validation. When combined with our precision grinding operations, these steps often reduce costs, decrease time to market, increase productivity, enhance quality, and improve responsiveness for our customers. Our has 3 distribution centers that are strategically located. Our customers are able to take advantage of a myriad of finished goods that are held at these centers, minimizing the lead times of our products.  Our locations include Woburn, MA; Minneapolis, MN; and Fort Wayne, IN.

All precision ground bar stock is machined using best-in-class equipment to ensure our customers’ specifications are met every single time. Our team supplies a range of materials including stainless steels, steels, premium medical grade alloys, plastics, and more. View the pages below for specific grades we can supply:

Boston Centerless can also supply and manage inventory for precision flats, precision wire and precision tube.

Dimensional and Tolerance Capabilities

Boston Centerless provides industry-leading centerless grinding services that ensure your precision ground materials meet the most stringent tolerances. Due to its simple setup, our centerless grinding techniques offer faster turnaround times than other grinding methods – making it an excellent choice for large volume production.

12 ft. Bars Cut-lengths or Components
Diameters: .040 to 3.00" .005" to 3.00"
Diameter Tolerances: to .0001" to .000040" (40 millionths)
Roundness: to .000020" (20 millionths) to .000020" (20 millionths)
Straightness: to .003" per ft. to .0005" per ft.
Surface Finish: to 8 Ra to 2 Ra