Stern Rubber Company's Quality Assurance

Stern's quality assurance department ensures your product exceeds your expectations.


Stern Rubber Company Believes in Quality

Stern Rubber Company's goal is not to just meet our Customer’s expectations – we plan to exceed them.  We understand that there is a critical difference between lowest price and best value – and it is our goal to deliver the best value and highest quality possible.

Rigorous testing of specifications and tolerances ensure your project meets your goals.

Stern's Plan for Quality

Stern Rubber Company obtained ISO 9001:2008 certification in June of 2013.  In September of 2016, we obtained ISO/TS 16949:2009 certification.  In September of 2018, we obtained certification to ISO 9001:2015 and IATF 16949:2016

The Quality Department plays an active, up-front role, in review of projects and determining and defining process capabilities.  Our Sales, Quality, Purchasing and Technical Departments work together, so we can do things right – the first time.

Stern Rubber Company utilizes APQP processes, we monitor and track internal Key Indicators- and we use the information to evaluate our current Quality System, identify areas for improvements, and to plan for future needs. In addition to inspection and documentation, the Stern Rubber Quality Department assists in the testing of compounds to ensure formula control and product compliance.

Stern also offers an off-shore option for product.  Our Purchasing and Quality Departments work closely with approved suppliers in China, to provide custom rubber parts that will meet all requirements. We visit the facilities, verify product, and communicate regularly with our off-shore supply base.

Investing in the Future of Quality

At Stern Rubber Company, we are continually looking to invest in equipment, upgrades, training- to keep up with our current Customer’s requirements and expectations- to improve our internal processes and keep costs down – and to keep us prepared for new opportunities.


Sterns engineering team brings your product to the table on time and on budget.

Stern Rubber Company’s Quality Department equipment includes:

  • MDR at our Plant 1 location and ODRs at our Plant 2 and Aitkin facilities
  • Brown and Sharp Manual CMM with CMM Manager Software
  • Starrett Optical Comparator with Surface and Profile capabilities
  • Keyence IM Series Vision System
  • CreaForm ExaScan Laser Scanner
  • TensiTech Tensile Tester
  • Makerbot Replicator2 3D printer
  • Lab Oven and Lab Press

Our promise is to sit down with you to identify opportunities and set realistic targets that help you reach your purchasing goals.

Stern Rubber Company proudly holds Certifications in ISO 9001:2015 and IATF 16949:2016.

Get started today!


Or call 218.894.3898