ISO Certification

The International Organization of Standardization (ISO) takes responsibility to establish desirable benchmarks for the quality of products and services sold and delivered around the world. When a company meets ISO standards and can demonstrate these to a third party certification agency, they are authorized to promote this to their customers. Those seeing evidence of certification can trust that the firm operates at a level of quality that is proper and adequate for the customer's needs. Prominex is proud to display its ISO 9000:2008 certification from TÜV SÜD America, a globally recognized testing, inspection and certification organization.

The Prominex Process

Our motto is: "Try, comply and improve--all the time!" This has worked for us since our establishment in 1986. At Prominex we have the mindset that the key to producing products that meet or exceed your expectations occurs at every step of the process. This theory is common throughout the metalworking industry, yet we put this theory into practice 100% of the time.

It takes more care and more time but it reduces waste nearly to zero and results in a customer acceptance rate of 99.8%. Ultimately, you the customer are the final judge, and the way we earn your trust and approval is to make absolutely certain that every step towards that end result contributes to your satisfaction with our work.

Inspection and re-inspection occurs beginning with the client's drawings and carries on throughout the process, from the job quote, to verifying the order, planning the job, materials procurement, machine programming and every step of the manufacturing operation. Inspection and quality control procedures follow as do certification steps, document preparation as well as packaging and shipping to the customer's specifications and, finally, billing and payment for the job.

In metalworking, where tolerances of 0.0001" may be necessary, strict adherence to the process is what eliminates mistakes. At Prominex, we apply rigorous standards to every phase from beginning to end.

It's an operating basis that has worked for us for 25 years. It enabled us to create a titanium hearing aid for Applied Bionics in the medical industry that could be implanted in babies' ears, a device barely wider than a human hair. It enabled us to manufacture [specifics on some huge part Prominex produced].

At Prominex Quality Control is King


Only by holding to the highest standards of quality and accuracy can we work with baseline tolerances of 0.001" (that's 1/5th of a human hair). And those levels can be pushed to 0.0001" for flatness and 0.0002" for milling.

We attain these standards through

  1. top shelf, new equipment
  2. top notch machinists
  3. annual certification inspections from third parties

We use Brown & Sharpe CMM BH506 (coordinate measuring machine) systems for inspection purposes including:

  • Brown & Sharpe CMM
  • Toolsmaker Microscope
  • Brown & Sharpe Hite-Tronic Gauge granite inspection plates
  • Digimatic 12" height gauge and block set
  • Gauge pin set in .001 increments (from .011 to .750)
  • Comparator - 12" table with 10X and 20X lenses
  • Array of Deltronics Precision Pins
  • Bore gauges from .3 to 6.0
  • Precision Dial Calipers

All work is inspected at each stage along the production line and by experienced QA technicians before shipment. CMM represents the state of the art in metrology and is found in machine shops that hold to the highest standards of quality. All our inspection tools receive yearly calibrations from third party sources. These painstaking quality control standards result in a 99.8% customer parts acceptance rate.


Using the CMM to inspect our work.