WHAT WE DO
Full Lifecycle Services
From your first lab test to your thousandth production run, CMS provides the engineering, equipment, and support to keep your operation running at peak performance.
OUR PROCESS
Cross-Industry Intelligence 30 Years Deep
1
Consultation
We listen to your production goals, material challenges, and throughput targets to understand exactly what you need.
2
Lab Testing
Your material is tested in our laboratory to validate particle size reduction performance before any system is designed.
3
Design & Engineering
Our engineers design a milling system customized to your exact specifications - material, particle size, capacity, and environment.
4
Manufacturing
We build your system in-house — designed, machined, and assembled by CMS at our North American manufacturing facility.
5
Installation & Training
We commission your system on-site, calibrate for optimal performance, and train your operators to run it with confidence.
6
Ongoing Support
Field service, replacement parts, system refurbishment, and technical consultation—we're with you for the life of the system.
What we learn from engineering a solution for a sugar processor directly improves the system we design for a powder coatings company. What works in pharmaceuticals informs how we approach minerals processing. That's 30 years of accumulated expertise - from Fortune 500 chemical plants to specialty food producers - working for every new client.
This isn't just experience.
It's compound knowledge.
It's compound knowledge.
30 Years of Expertise Across Different Industries
About Us
Learn Our Full Story
Engineering Optimum Results for 30 Years
Classifier Milling Systems is a design engineer and OEM manufacturer of industrial milling systems for particle size reduction. Headquartered in North America with tolling operations along the Ohio River, CMS has served market leaders across six continents — including Fortune 500 companies in chemicals, powder coatings, minerals, pharmaceuticals, food, and environmental materials.
What sets CMS apart is compound expertise: 30 years of solving problems across diverse industries means every new project benefits from the solutions that came before. What we learn from a sugar processor improves the system we build for a chemical plant. That’s cross-industry intelligence you can’t get from a single-sector manufacturer.
30+
Years of Engineering Excellence
2.5×
Throughput Efficiency Gains
6
Continents Served
Fortune 500
Clients Worldwide
Trusted by Industry Leaders
Frequently Asked Questions
What particle sizes can CMS systems achieve?
CMS Air Swept Classifier Mills deliver consistent particle size control down to 5 microns, with the flexibility to process materials up to a hardness of 4 on the Mohs scale. For applications requiring medium fineness, our Pin Mill is engineered to reach particle sizes around 48 microns (D90).
Do you offer toll processing for companies without their own milling equipment?
Yes. CMS/ACMS provides toll (contract) processing services, including certified food toll processing, so companies can access our milling and classification expertise without investing in their own equipment.
Can I test my material in your lab before purchasing a system?
Yes. Our laboratory test facility allows you to test your material before you buy. We use your sample to establish the right production scope and system requirements for your application, then provide particle-size analysis reports and recommendations. Your product information remains strictly confidential.
Do you sell replacement parts for existing classifier mills?
Yes. CMS supplies precision-built mill components and replacement parts - including classifier wheels, liners, rotors, hammers, seals, and bearings - for systems ranging from pilot scale up to 400 HP. We also offer refurbishment services to extend the life of older equipment.
Resources Center
BLOG
Choosing the Right Milling Machine for Your Needs
The right milling equipment makes all the difference in your material size-reducing operations. Compare milling machines to select one that optimizes your productivity.
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TECHNICAL
Graphite on Center Stage in Lithium-Ion Battery Manufacturing
Spherical graphite has moved to center stage in the battery industry, where it's increasingly the preferred anode material for lithium-ion batteries.
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CASE STUDY
Sorbent Injection for Mitigation of SO2, SO3, & Acid Gases
Size-reduction milling systems are at the heart of dry sorbent injection technologies for regulatory-compliant acid gas mitigation in power generation.
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