Specializing In:

Precision Welding, Machining, Manufacturing, and Engineering.



C4 – Providing Solutions

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Complex ManufacturingComprehensive Solutions

C4 Welder working on large structure

When certified precision is non-negotiable,

When exact specifications must be absolutely achieved or exceeded,

These are the complex manufacturing challenges C4 Welding solves every day.


C4 Welding, Inc. offers:
Critical Welding, Machining, Manufacturing Engineering
Assembly, OEM Manufacturing, and In-House Fabrication Services
for specialized customer projects. We are home to a team of highly-experienced certified welders, weld inspectors, assemblers, and machinists. Our industrial roots extend back to our founding 35 years ago. Along the way, we have become nationally recognized as a leader in critical welding and fabrication services.

Specialty & Critical Welding

Engineering & Manufacturing

Industries We Serve

“Thanks for sticking with us through these times.  The last frame you did for me was great paint and welding wise, so keep it up!”

OEM Manufacturer in Automation

“As the lead engineer at National Flooring Equipment for a key project, I was very impressed with the tooling that was designed and built by C4 for my project.  C4 was very responsive with regard to the needs of a tight project timeline and the proto-type weldments met our quality requirements.”

John Kivisto

Lead Engineer, National Flooring Equipment

“Working with a company like C4 that has not only technical talent but the confidence in what that talent can do went a long way in engineering our project’s complete success.”

US Military Procurement Officer

Machine Tooling Operator

C4 Welding is looking for an experienced manual lathe machinist.  We have openings on our 1st and 2nd shift.   Purpose of Position:  The Machine Tooling Operator is responsible for operating an assigned machine in an efficient and safe fashion...

Code Welder

Purpose of Position:  The Code Welder is responsible for cutting, fitting and welding metal materials and assuring that company standards, national codes and customers’ specifications are met. Essential Job Specific Duties: Performs successfully all...

C4 Welding Featured on Fox Business Network’s Manufacturing Marvels

C4 Welding was featured on Fox Business Network's Manufacturing Marvels on Oct. 3rd.  Their team did an amazing job creating this video! https://youtu.be/CwMnOKZmX_s  

30 Years of Dedication!

A Very Heartfelt Thank You to C4 Employees Anne Klem, Tom Pikus, and Todd Wheeler for 30 Years of Service!  We appreciate all you have done and your dedication!  Congratulations on this milestone!

C4 Employee Named 1st Place GTAW Welder

Congratulations to C4 Welder Mikayla Asfeld! She completed in the 2019 Women in Welding Competition sponsored by Xcel Energy on Tuesday, March 26th and took 1st place in the GTAW Category! We are Proud and Excited to have her on staff!...

Back to the Basics – Sub-Arc & Stick Welding

GTAW, GMAW, Sub-Arc and Stick Welding – What’s the difference?  Part 2 I was hoping to have a welding story for you by the time I sat down to write this article, but this wonderful MN winter got in the way of that.  The day I was supposed to go down and have my...

C4 Can Assist With All Your Machining Needs!


Back to the Basics – GTAW & GMAW Welding

GTAW, GMAW , Sub-Arc and Stick Welding – What’s the difference?  Part 1 Have you all been wondering what I have learned recently? Well, I have decided to start with Welding Types. I will start with the prettiest, since that is my forte. TIG welding, also known as...

Back to the Basics

  Having come from a background of doing hair for 18 years to now being in the marketing department of a welding and machining company, I have realized that I have so much to learn.  My first couple of weeks here were very laughter filled...


Street Address: 11 Industrial Blvd.

Sauk Rapids, MN 56379 USA


Main Phone: 320.253.2699

Fax: 320.253.4804


Sales-Related Inquiries: 320-253-2699 

Email: sales@c4weld.com


Human Resources-related Inquiries:

320-253-2699 Email: hr@c4weld.com


ISO 9001:2015 Certified Quality Systems