Obsidian Manufacturing Industries, Inc.

5015 28th Avenue

Rockford, IL  61109



Industrial Grit  |  Enduring Precision  |  Cornerstone of Quality

about us

Obsidian Manufacturing Industries, Inc. is a SBA certified woman-led small business that offers a diversified selection of manufacturing products and services.  Our price competitive solutions are appealing to our customer's industrial needs, whether it is workholding, material handling, precision rotary surface grinder applications or OEM equipment repairs and spare parts or our precision grinding services.  Several of our product lines have robust historical records with one dating as far back as 1916.  This information has helped us serve our vast customer base with products and services that have an emphasis on durability, outstanding craftsmanship, and value.  

Our brands include Arter Precision Grinding Machines, Magna-Lock USA, MagnaLift and Power-Grip.

Sales Team

Our sales team is led by our Vice-President, David Nordman, who began his manufacturing career in 1984 as a machinist.  He has worked with the Magna-Lock USA brand since 1997 and was directly involved with the acquisitions of Magnetic Specialties Corporation in 2010, Arter Precision Grinding Machines in 2018 and the  assets of Stieg Grinding Corporation in 2019.  Prior to the Arter acquisition, he had 23 years experience with that brand. 


Nick Rivers is our Inside Sales Representative and fields customer questions daily.  He uses his knowledge of industrial manufacturing and over 30 years of sales experience to partner with our customers and production staff to get our orders out as efficiently as possible. 

Production Team

We pride ourselves in employing skilled machinists and laborers with a combined 150+ years of experience in manufacturing, machining, and production.  They are our greatest asset and we value their skills, ambitions, and potential.  By welcoming a new generation of machinists, our employees are working for the future while using the experience of the past.

Engineering & Design Team

We have  an engineering library dating back over a hundred years ago.  Our engineering team relies on these resources for both new product design and rebuilding of older products.  New product development includes extensive testing and evaluation before it meets the end user.  Upon request, customers can visit our production floor to view our products before shipment.


products & services


news, blog & social media


Milling vs. Grinding

October 17, 2019


Our new t-shirt is ready for online purchase exclusively at Rockford Art Deli! The  #HereForGoodProject was created to help local businesses & $10 of each purchase of our t-shirt will come back to us.

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Check out our ebay page for aged and used inventory.

contact us

Obsidian Manufacturing Industries, Inc.

5015 28th Avenue

Rockford, IL  61109


815-398-0285 fax