Modern Machine Shop announces that
Marathon Precision is a 2025 Top Shop winner!
Hard work, dedication, creativity, a focus on quality, and reinvestment into
the company has paid off for us and our customers. We take this honor very
seriously and look to build onto our accomplishments.
.
Read the Modern Machine Shop article
2025 Modern Machine Shop Honorees

Marathon Precision is your:

From one piece to multi thousand piece runs, Marathon Precision is committed to meeting or exceeding our customers expectations. With the continuous addition of new equipment and technology, Marathon Precision is able to keep many processes in house helping to reduce our customers lead time. As a family owned business located outside of Chicago, Marathon Precision strives to meet our customers needs across a wide range of industries from design, engineering, precision machining, assembly and everything in between. Feel free to call or email to discuss your project.

Marathon Precision believes in a total commitment to capital investment. Check back often for our new machinery additions. 

Facts & Figures

Manufacturing facility

experienced in house employees

in business

%

Made in USA

Call Us Today

(847) 398 – 5165

If you would like to request a quote or would like more information from Marathon Precision please call, email or click on contact us

VIDEOS

We deliver exceptional precision CNC machining services

Our Services

  • CNC Milling
  • CNC Turning
  • Conventional Machining
  • Grinding Department
  • Sinker and Wire EDM
  • Waterjet Cutting
  • Laser Cutting
  • Fabrication
  • Chemical Machining
  • Engineering & Quality Assurance
  • Assembly
  • Contract Machining & Inventory Services
  • Software

Industries we serve

but not limited to:

  • Aerospace
  • Agricultural
  • Defense
  • Food
  • Industrial
  • Medical
  • Packaging
  • Paper converting

Building the future

Our Projects

Vacuum Cylinder

Industry – Paper Conversion

Complicated vacuum cylinder required hundreds of vacuum holes milled into the face and joined by diamond shaped channels that also required smooth deburred edges.

 

Doctor Blade Chamber

Industry – Printing

Plastic was used in this design to greatly reduce weight for ergonomics and the plastic is impervious to inks and cleaners resulting in a much longer service life.
(x4 longer life, overall reduced cost)

Inspection Port

Industry – Aerospace

Two piece Inspection Port designed to mount to an airplane wing with a complex undulating surface. Material certifications and traceability required.

 

Collator Assembly complete

Industry – Paper Conversion

Complete collator assembly ready to install.
Features several adjustment points with precision milled and lathed parts

 

Shipper

Industry – Packaging

This part features a complicated geometry that Is also hardened with a keyway. Feature tolerances must be maintained after hardening making this a
challenging part…

 

What our customers say

Excellent Service

Outstanding Service

We have come to rely on Marathon Precision for quality parts and assemblies that work the first time we use them.

Jim 

Professional Service

Amazing Work

Marathon Precision is a valued supplier and partner. They work with our buyers and engineering group seamlessly to get our products out the door.

Sam – Packaging Industry

Have a Question or Request a Quote

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