Welcome To MacDiarmid Precision Machining

MacDiarmid Machine (MacD) provides precision state-of-the-art machining and assembly of components from prototype through production for critical applications in all types of metals and plastics for various markets such as Robotics (commercial and military), Automation, Conveyance, Laser Systems, Alternative Energy, Oil & Gas, Medical, Biotech, Semiconductor and Pharmaceutical. MacD is currently ISO 9001:2015 Certified and ITAR Registered, REACH and RoHs Compliant.

As a Potentia Company, MacDiarmid works collaboratively with other Potentia affiliates to provide our customers synergistic solutions employing state-of-the-art technologies and a wide range of services.

State-of-the-art CNC equipment  

MacDiarmid Machine has grown into a 6,000 square foot facility and a wide variety of CNC machining equipment and capabilities.

Over 30 years of quality service  

MacDiarmid Machine focuses on demanding parts for specialty equipment manufacturers, semiconductor, medical, pharmaceutical, robotics, defense industries and more.


Our Difference 

From prototype through production our clients can count on personalized service and rapid response time that sets MacDiarmid apart.


We are proud to be MADE IN AMERICA.


MacDiarmid Precision Machining

7 Perry Way, Newburyport, MA 01950, USA  |  Tel: 978-465-3546  |  Fax: 978-465-3636

Opening Hours: Mo-Fi 7:00-17:00 EST

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Terms and Conditions:  Sale Purchase