PTI Engineered Plastics
PTI Engineered Plastics logo

PTI Engineered Plastics

Prototype & Low-to-Mid Volume Plastic Injection Molding

PTI delivers precision plastic injection molding for low to medium volume production runs. With state-of-the-art equipment and decades of experience, they transform your designs into high-quality plastic components.

About

PTI Engineered Plastics, located in Macomb, Michigan, is a leading full-service injection molding and tooling company specializing in custom plastic components for the medical, defense, automotive, and industrial markets. With in-house design, engineering, and tool-building capabilities, PTI provides complete product development support from prototype through production. The company offers precision injection molding—including cleanroom manufacturing, insert molding, and rapid prototyping—along with advanced assembly, decorating, and finishing services. As an ISO 13485 and ISO 9001 certified, FDA-registered facility, PTI is recognized for its focus on quality, innovation, and speed-to-market for complex, highly regulated applications.

Established 1988
USA Based

Key Specialties

Prototype Injection Molding
Low Volume Manufacturing
High Volume Manufacturing
Contract Manufacturing
Clean Room Molding and Assembly
Part Decorating

Certifications & Compliance

ISO 9001

Quality Management System

Issued by: ISO

ISO 13485:2016

Medical Device Quality Management

Issued by: ISO

AC 8160

MedAccred

Issued by: PRI

Equipment & Capabilities

60 Injection Molding Machines

Plastic Injection Molding

Capabilities

  • High Temperature Molding
  • Insert Molding
  • Over Molding
  • ISO Class 8 Cleanroom for Molding & Assembly

Specifications

Tonnage Range
35-300 tons
Shot Size
0.09 to 25.56 oz.

Prototype Injection Molding

Rapid Prototyping

Capabilities

  • Fast turnaround prototypes
  • Design validation
  • Functional testing
  • Small batch production

Specifications

Time to Market
Average 3-5 weeks
Part Runs
Prototype to Large Volume

Design for Manufacturing

Engineering Services

Capabilities

  • Design optimization
  • Cost reduction analysis
  • Material selection
  • Manufacturability review
  • DFM consultation

Specifications

Service Type
Engineering Support
Expertise
Injection Molding & Tooling
Availability
Full-time support