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Macomb, Michigan



PTI Engineered Plastics is a custom injection molder and manufacturer of plastic components and assemblies. Their diverse global customer base varies from small tier suppliers to large OEM’s within the medical, automotive, defense, aerospace and consumer product markets.

The customized 155,000 square foot facility in Macomb, Michigan offers full design services, engineering, tooling, low and high volume production, and an array of secondary services.


PTI can take you from mind to manufacturing® starting with their industrial design and development studio. PTI Design can optimize your design, or take your idea through their five-phase process to insure your product has the competitive edge in the market. PTI uses 3D CAD software and moldflow simulation tools to test and validate your product prior to manufacturing.

In PTI’s Tool Room you will find a fully integrated tooling network, (18) high-speed vertical machining centers, three of which are Makino with spindle speeds of 20,000 RPM’s complimented by a Makino Horizontal Machine. All machines utilize thermal shrink collet tooling for precision and accuracy. Their EDM department includes (4) high-speed graphite robotic load machining centers with spindle speeds up to 54,000 RPM. We offer plunge EDM machining as well as wire EDM capabilities. PTI uses an array of materials from aluminum, mild steel, hardened steels and stainless. Injection mold types include: unit-mold insert, free standing, shuttle loading, hot runner, single and multiple cavities. PTI’s proprietary capability, the P3™ Process, creates ready for-production prototypes, providing their customers’ with speed to market without compromise to product design or material choice.

Their production floor currently hosts (44) injection molding machines ranging from 12-750 tons of clamping force with .33 to 98 oz. shot capacity. Manufacturing capabilities include low and high volume production, insert/overmolding, high-temperature molding, contract manufacturing, assembly and packaging.

Cleanroom Manufacturing
Services within ISO Class 8 Cleanroom include injection molding, assembly, secondary operations and packaging.

PTI is fully versed and staffed in the IQ/OQ/PQ validation protocol.

PTI is FDA, UL, and ITAR registered and ISO 13485:2003, ISO 9001:2008, ISO 16949:2009

Value Added Services include:

Plastic Joining services:

  • Ultrasonic Welding
  • Staking
  • Vibration Welding
  • Swaging
  • Spin Welding
  • Thermal Imbedding
  • Hot Air Cold Staking
  • Thermal Processing

Part decorating services:

  • Laser Marking
  • Pad Printing
  • Appliqué Assembly
  • In-Mold Decorating


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