+1 (815) 941-4800
+1 (815) 941-4600 (fax)

1384 Bungalow Rd.
Morris IL 60450 U.S.A.

Our Products & Services

From surface preparation to polishing — for concrete, terrazzo, and stone surfaces

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Grinding Machines

STI is the famous manufacturer of the Prep/Master grinding machine

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Diamond Systems

Use the STI diamond tools and systems to get the best results with your prep-to-polish projects.

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Shot Blasters

We offer the best shot blasters in the world - the IMPACTS Streamer line of blasters

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Dust Collectors

Our powerful and reliable dust collectors keep job sites cleaner and healthier for everyone

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Scarifiers & Profilers

Remove tough coatings and adhesives by scarifying your surfaces quickly and easily

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Service & Support

STI is known for its excellent customer service and support — you will always get a real person to talk to!

Low Maintenance & Made to Last!

STI designs and manufactures high quality grinders / polishers that are made to last a lifetime. Prep/Master® gearboxes are made of cast aluminum and contain no belts or pulleys that break down in the middle of the night. It's a total gear-to-gear system.

Available in a range of sizes, there will always be a perfect P/M machine for any project size or need. Every P/M is designed with 20 years of research and development to give you the very best the industry can offer. P/M machines can do everything from prep to polish!

A Little History

At STI, we are proud to offer products that deliver “real world” solutions for our customers. We are able to do this for a few reasons — like hard work combined experience of over 100 years of contracting, and ISO certified suppliers — but mostly we are able to do it because of our founder Bill Jones.

STI was founded in 1995 by William "Bill" Jones after 30 years of floor covering and floor prep experience. As a contractor, Bill realized he was helpless for products that could deliver results productively AND reliably. Sure there were "systems" on the market but each had their shortcomings and all required some improvising by the end user of the products.

Through numerous trials and subsequent failures Bill put together a system of machinery and diamond tools that can be relied upon to deliver the fastest and most predictable results.

There is of course much more to the story of Bill's genius and what has brought STI into its 23rd year of business. The point is Bill already made most the mistakes common to our industry and then created systems to prevent these mistakes.

So, why does all this matter to you the customer? STI products are turn-key, cutting-edge systems ready to deliver you a solution that is profitable and predictable. It's that simple.

STI offers real-world solutions and high quality floor prep-to-polish equipment and accessories.

Words from Our Clients

Guaranteed Results

Our Partners

IMPACTS Americas logo         Airtec AG logo          Makinex Construction logo         Von Arx logo

Our Benefactors