If a crew is still burning through grinding stones on a concrete floor, the math is working against them. This EDCO Dyma-Sert grinds roughly five times faster than a stone and lasts longer while doing it - up to 30,000 square feet of grinding action on standard 3,500 PSI concrete from a single insert. The construction is what makes the difference: diamond segments welded to a steel backing plate, rather than a bonded abrasive that wears away and glazes over.
At 120 grit this is the finer-cut member of the family, which makes it the one to reach for when the goal is a smooth, even surface rather than bulk removal. Concrete contractors, surface prep crews and facility maintenance departments use it for smoothing rough surfaces and trowel marks, grinding terrazzo, repairing surface damage to slabs and leveling high spots - the work that comes before a coating, a covering or a polish.
Built for
- Smoothing rough concrete, trowel marks and form lines ahead of coating or covering
- Grinding terrazzo and repairing surface damage on existing slabs
- Leveling high spots so flooring lays flat instead of telegraphing the substrate
- Removing urethane or epoxy thincoats, thin mastics and thin-sets
- Cutting sharp aggregate such as flint and granite that dulls softer abrasives quickly
Wet or dry, and grit selection
Dyma-Serts can be run wet or dry, so the same tooling works whether you are using water to control dust and heat or running dry into a vacuum for interior work. On grit: coarser inserts move more material per pass and leave a more open scratch pattern, while 120 grit refines the surface. If you are taking off a heavy coating or a significant high spot, start with a coarser Dyma-Sert and finish with this one - going straight to 120 grit on heavy removal just wastes time. This listing is for a single insert; check your machine head for how many it takes.
Specifications
- Part number: EDCO 19270
- Type: Dyma-Sert EG-9X diamond grinding insert
- Grit: 120
- Construction: diamond segments welded to a backing plate
- Expected output: up to 30,000 sq ft on standard 3,500 PSI concrete
- Method: wet or dry grinding
- Quantity: sold as one insert
Frequently asked questions
How many inserts do I need for my grinder?
This part is sold as a single insert, and machine heads take a set - the number depends on your grinder and head configuration. Check your machine documentation or send us the model and we will confirm the set count before you order.
Can I use it for wet grinding?
Yes. Dyma-Serts are rated for wet or dry grinding, so you can run water for dust and heat control or grind dry into a vacuum for interior work.
Is 120 grit right for removing a coating?
For thin material - urethane or epoxy thincoats, thin mastics and thin-sets - it will do the job. For heavy coatings or significant leveling, start with a coarser Dyma-Sert and use 120 grit as the refining step.
How much floor will one insert grind?
EDCO rates it at up to 30,000 square feet of grinding action on standard 3,500 PSI concrete. Harder concrete, sharp aggregate and heavy coating removal will shorten that considerably.
Why choose a diamond insert over grinding stones?
Speed and life. This insert grinds about five times faster than stones and lasts longer, so you spend fewer labor hours per square foot and fewer stops to change tooling.
Discount Cleaning Products is an authorized dealer for EDCO, so every unit ships as a current factory-spec item backed by the manufacturer warranty. Our US-based staff works with commercial cleaning contractors, restoration crews and facility teams every day, and we can help you confirm compatibility or source the matching consumables and replacement parts before you order.
