Plastic Injection Molding
Tri-Mack specializes in the injection molding of high temperature engineering thermoplastics, such as PEEK, Torlon, Ultem, Amodel, and PPS.
Tri-Mack has a full range of injection molding presses from 28 to 600 tons.  We also have insert molding and overmolding capabilities to support your part requirements.

Precision Machining
Tri-Mack offers precision machining including CNC milling, CNC turning, and screw machining.  We produce tight tolerance components from high performance engineering plastics such as Vespel, PEEK, Torlon, and Teflon (PTFE).

The combination of molding and machining enables Tri-Mack to offer you the most cost-effective manufacturing solution.

Plastic Injection Mold Tool Making
Tri-Mack designs and builds custom plastic injection mold tooling using state-of-the-art CAD/CAM and CNC equipment.

Assembly and Finishing
Tri-Mack adds value by supplying complete assemblies and kits, including functional testing.  We offer ultrasonic assembly and NADCAP certifed bonding. 


Part Producibility
Whether your project is a metal-to-plastic conversion or a brand new part, you can
rely on Tri-Mack’s high performance engineering plastics expertise to guide you from design to production.

New Product Introduction
Tri-Mack’s NPI procedure is our guide to custom plastic part development and the key to a successful product launch.

Tri-Mack uses state-of-the-art solid modeling to assess producibility, design tooling, and develop CNC machining processes.

Products & Technology

Tri-Mack’s ultra high performance self-lubricated bearing materials combine unparalleled friction wear capabilities with
the economies of injection molding.

Tri-Mack’s Self-Lubricated Pin technology is a design and manufacturing process that  lowers cost in your pivot pin applications.

EZ Fit Bushing
Tri-Mack’s patented EZ Fit bushing design allows for ease of assembly and replacement of thermoplastic bushings.

Quality SystemQuality System

Tri-Mack wins GE Aviation award for quality and productivity

Tri-Mack has over 30 years experience in processing high performance engineering thermoplastics including Amodel, Aurum, Nylon, PEEK, PPS, Torlon, Ultem, and Vespel.  Learn more about the benefits of high temperature plastics and the latest innovations at Tri-Mack.

  •  Material Properties Guide
  •  Plastic Design
  •  Case Studies
  •  Press Releases

Industries Served
Tri-Mack has proven itself as a leading supplier of high temperature thermoplastic components for demanding applications.  Our responsive, customer-focused team works together to insure that we deliver in spec components on time and on budget.