Custom Injection Molding for complex applications


Engineering Support

Kaysun supports quality outcomes by balancing world-class custom injection molding with comprehensive in-house engineering services such as DfM analysis, material selection, and metal-to-plastic conversion.


Tool Building

Tooling is central to injection molding. Kaysun can design, qualify, and refine tools in-house to ensure the highest-quality tool for a project. 

Tool Building

Injection Molding

Kaysun provides innovative, sophisticated injection molding solutions for even the toughest applications. See how we put our scientific molding, overmolding, and insert molding expertise to work for you.

Custom Injection Molding

Value-Added Services

Kaysun is vertically integrated and positioned to provide a number of in-house, value-added services that can enhance our level of impact on your specific product.  


Quality Systems

Kaysun’s in-house Quality Lab is a hub for cross-functional collaboration, comprehensive testing, and precision injection-molded part and process quality control.


Markets Served


Kaysun is proud to play a critical role in the development and production of a wide range of life-saving medical products. Our extensive experience of IQ, OQ, PQ validations coupled with world-class injection molding capabilities make Kaysun a strategic partner to many of the world’s largest medical industry OEMs.

ISO AccreditedMedAccred Accredited


Kaysun has deep experience serving the industrial market. Our extensive engineering resources, high-precision injection molding, and value-added services combined with our strong quality management systems and procedures make Kaysun a strategic partner to leading industrial OEMs in North America.


Kaysun has years of experience providing highly engineered injection-molded products to both the automotive and heavy truck markets.

IATF Accredited


Kaysun is a key supplier to a number of the leading consumer brands that rely on us for their critical-use products.

Additional Markets

We are committed to using our depth of knowledge, engineering expertise, and highly specialized material selection insights to help our customers find innovative solutions to their most complex applications, across a variety of markets.

ITAR Accredited

Why Partner With Kaysun?

When state-of-the-art technology meets world-class problem solving, challenges are overcome. Goals are achieved. Results create competitive advantage.

Our partners include Fortune 500 companies, and span across diverse markets. They’re different, yet the same — they all need trusted custom injection molding solutions for highly engineered, complex applications. And they rely on Kaysun’s expertise, passion, and guidance to deliver.

Environmental Stewardship Kaysun successfully diverted more than 2,000,000 pounds of plastic waste from landfills

Sustainability isn’t a buzzword or a future focus at Kaysun. We’re actively pursuing opportunities to demonstrate corporate social responsibility in meaningful, inspirational ways.

Whether it’s the simple act of tending the Kaysun employee garden or joining forces to reach a major landfill waste-diversion milestone, our team is in it together.

We owe it to our planet, our customers, and ourselves.

Employer of Choice

People are our greatest asset. The Kaysun culture is shaped by core values that support and empower team members to reach their full potentials personally and professionally.

Our environment of respect, integrity, and wellness is the framework for fulfilling Kaysun careers. We invest in the whole person because we know it’s a difference-maker in the lives of our employees and their families.

Kaysun is proudly an employer of choice in our area and our industry. Join our team! Check out our available positions, great benefits, and apply online.

Ask Our Experts Questions? Comments? Next Steps?

Our team is here to listen — and help!