+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!

How to Perform an "S-Curve"

To perform an S-curve, the rotary machine is moved side-to-side during a forward or backward direction to an approximate 20-degree angle on both the right and left sides of the cutting path. The machine is always swung side-to-side in a smooth and controlled way forward or backward.

The only time that a rotary machine can be moved in a straight line is when it is grinding or polishing against an edge like a wall or obstacle. In this case, the machine must be moved in a straight line parallel to the edge going forward. Then, moved out from the wall walking backward and swinging the machine side-to-side in the S-curve motion. This will ensure a smooth transition across the entire surface.


© Substrate Technology, Inc.

For any clarification of the above or to discuss your unique situation, please do not hesitate to contact STI or any of its authorized dealers for more help and advice. We are all here to supply you solutions that save you time and make you money.

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