Used Prep/Master 4430 Grinder — Demo Unit

🖼️ Photos coming soon — call for current details and pricing..

Our Flagship Grinder — Demo Unit, Barely Used

This is a rare opportunity to own our largest grinder, the Prep/Master® 4430, in like-new condition. Built in 2019, this machine has only ever been used as a demo unit in our own shop — never put to work on a job site. It has the hours of a showroom machine, not a working one, which means you get our top-of-the-line grinder at a used-equipment value, in essentially new condition.

Because it’s been in our shop its entire life, we know exactly how it’s been treated — gently, and by the people who build these machines. It’s been fully inspected and reconditioned, and it’s ready to deliver years of production on your biggest floors.

Why This Demo Machine Is a Smart Buy

• Only used as a shop demo — never worked a job site, so minimal hours and wear
• 180-Day Warranty — we’re so confident in this machine, we back it twice as long as our standard refurbished warranty
• Our flagship grinder — the biggest, most productive machine we build
• Like-new condition at a used price — a significant savings over new
• Maintained by the experts who build it — nobody knows this machine better

About the Prep/Master 4430

The Prep/Master® 4430 is the largest grinder in our lineup, built for maximum production on large commercial and industrial floors. With its wide grinding path and heavy-duty build, it’s designed to cover serious square footage fast — grinding, polishing, coating removal, and surface prep on the biggest jobs. Its variable speed drive and interchangeable weight system adapt to a wide range of applications, from aggressive grinding to fine polishing.

• Model: Prep/Master® 4430
• Class: Our largest / highest-production grinder
• Year Built: 2019
• Condition: Demo unit — like new, only used in our shop
• Warranty: 180 days
• Built for: large commercial & industrial floors, high-production grinding and polishing

The Complete Setup

A machine this size needs the right support equipment. We can match it with the dust collection and diamond tooling to put it to work right away — just ask.

A Rare Find — Don’t Wait

A like-new demo unit of our flagship grinder doesn’t come along often, and at a used-equipment price, it won’t last. If you’re interested in the Prep/Master 4430, reach out today for pricing, full specs, and availability.

📞 Call (815) 941-4800 x 1 or fill out our contact form. Browse our other used equipment, or explore our new concrete floor grinders.