Grind and polish concrete with the right machine for the job. We're the makers of the Prep/Master® grinder, and we carry the floor grinders that prep, level, and polish concrete — from planetary machines to hand grinders. Whatever you run, we'll help you choose and keep it running. Call and talk to a real surface-prep expert, not a call center.
Concrete Floor Grinders
Prep/Master® grinders — our own gear-to-gear concrete grinders and polishers, built to last and available in a range of sizes
Planetary grinders — Lavina® and more, for grinding and polishing larger floors
Hand grinders & edgers — for edges, tight spaces, and detail work
Grinding to Polishing — One Machine Range
A good floor grinder takes you from aggressive grinding through fine polishing. Match the machine to your floor size and finish: a planetary for open areas, the Prep/Master for prep-to-polish versatility, and hand grinders for the edges and spots the big machines can't reach.
Compact design and foldable frame, that can be also separated in two pieces for easy transportation and storage
Dust-proof planetary drive with low-friction rubber seal protects internal components from dust and moisture, which reduces maintenance and increases service life.
Three 9-inch grinding heads with right / clockwise rotation (use the black pcd and carbide scrapers).
Floating skirt with flexible brush for optimal dust containment.
Simple control panel.
Option to add weights – up to two 18.5lbs / 8kg weights (#L21.50.00.00)
Use for surface prep and polishing of concrete, terrazzo, and marble
Item # 434430230 – 230 Volt
Item# 434430480 – 480 Volt
Why Buy From Substrate Technology
We build the Prep/Master, carry the industry’s best grinders, and service what we sell, nationwide — with real experts on the phone and a 1-year repair warranty. One source for your grinder, tooling, and support.
