What Can We Help With: 608-587-2335


4GK is a full-service injection molding provider from the initial consultative stage of a mold, through full production, including assembly, hot plate welding, sonic welding and testing. Whether your need is prototyping , production molds, or molded parts, we have the capabilities to satisfy all your requirements for custom plastic injection molding, as well as manufacturing custom medical injection molded parts in a Class 100,000 clean room.

Expertise from Design Stage Through Production

A newly formed team of experienced employees has more than 25 years of experience of partnering with businesses for the design and manufacturing of custom parts made through plastic injection molding. As a privately held company, we are highly flexible in meeting the needs of our customers, and can produce small or large quantities with great service.

Our parts and assemblies are used in diverse industries and have a global reach. We produce a wide variety of plastic injection molded parts, from parts for medical devices to custom plastic components of any kind.

We have presses ranging from 20 to 680 tons, IQMS System and auxiliary services and capabilities, including all-electric injection molding machines.

Call 608-587-2335 or email to learn more about our capabilities.