Rapid Prototyping and Low Volume Manufacturing Services
424 Main Street, Gardner, MA 01440  /  Ph: 978.632.3700  Fx: 978.632.3777

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Injection Molding and Rapid Tooling



     Mack Prototype offers precision injection molding services for prototype through production volumes. We have extensive experience in producing short run, high mix parts for the medical industry, as well as supporting higher volume and cosmetic production parts for many industries including electronics and aerospace. Overmolding and insert molding, utilizing a broad range of materials that include high temperature, high performance polymers, and custom blend composites are also part of Mack Prototype’s extensive portfolio of manufacturing options. Our 85K sq ft facility is an ISO 13485:2016 registered, and we are UL approved. Mack Prototype has eight presses ranging from 28 to 230 ton.  

     Utilizing a wide range of tooling strategies including Modular Unit Die (MUD), aluminum, and conventional stand-alone tooling in pre-hard or fully hardened steel construction, Mack Prototype can support your molding requirements.

     Our facility offers secondary operations such as ultrasonic and heat stake assembly and insertion, finish painting and EMI/RFI coating applications, as well as secondary CNC machining. Our combination of competencies assures that your product, whether simple or complex, will be manufactured to meet or exceed your specifications and expectations.


Injection Molding

Rapid Tooling

Rapid Tooling Tooling