Who We Are

A sought-after custom plastic injection molder, Kaysun Corporation is the preferred partner to leaders in multiple industries that require injection molding expertise on complex projects. Kaysun’s commitment to customer success is evident in our early-supplier-involvement engineering before product launch and committed customer service afterwards.

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Capabilities, Certifications and Areas of Expertise

The breadth of Kaysun capabilities plays a key role in successful project completion:

  • Engineered products for critical-use and tight tolerance applications
  • Collaborative engineering and product development support, including in-house teams of project, manufacturing, quality and automation engineers
  • In-house tooling design, engineering, maintenance and management
  • Process development and process control utilizing Scientific Molding, with onsite Master Molder I and II Technicians
  • Two-shot, insert molding and overmolding
  • Metal-to-plastic conversion and applications
  • A range of post-mold and secondary operations
  • Materials expertise ranging from engineered resins to soft-touch TPEs
  • State of the art automated quality control inspection equipment
  • Horizontal and vertical presses ranging from 35-940 tons, with a concentration on precision electric presses
  • Dedicated Continuous Improvement (CI) program
  • ISO 13485:2016 certification
  • IATF 16949:2016 certification 
  • International Traffic in Arms Regulations (ITAR) compliant 
  • MedAccred Plastics Accredited
IATF 16946:2016 certified
ISO 13485:2016 Certified


ITAR Regulations Compliant

Current Partnerships and Industries Served

When tackling advanced, highly engineered injection molding projects, companies turn to Kaysun, including these Fortune 500 and other world-class partners:

Smiths Medical Logo
Stryker Corporation Logo
Eaton Corporation logo

Market Diversity: Partnerships by Industry


Medical Injection Molding

Molding parts and components for life-saving applications



Offering solutions for a vast range of industrial applications


Automotive Injection Molding Part Design

Solving design challenges for complex automotive applications


Consumer & Industrial Injection Molding

Putting quality first for consumer product OEMs

What Our Customers Say


Dave D.
Senior Industrial Designer

Kaysun exceeded our expectations in all areas. They made this complex, gigantic program easy from an engineering standpoint. Working with the Kaysun engineering team is like a hot knife through butter.

Kaysun is a flexible and supportive partner in the new product development cycle. They work to understand our functional requirements and then provide valuable DFM input to achieve our desired outcome. The Kaysun team demonstrates excellent capacity for project management. Their high quality metrology capability and equipment aligns well with our methodologies for ensuring capable, repeatable processes. Overall, they bring a great combination of internal and external resources that successfully transition parts from the development phase to full production.


Cindy L.
Supply Chain Leader