Description
Professional surface grinding and polishing for stone, concrete, terrazzo, and more. The Stone Ray 3-Head Surface Grinder & Polishing Machine is engineered for fabricators, installers, and restoration specialists who demand reliability, speed, and accuracy across multiple materials. Its compact 7 lb footprint and balanced 3-head planetary design make it the go-to tool for grinding, honing, and polishing in tight or detailed spaces — on floors, countertops, stairs, ledges, pools, and walls.
Attaches to any variable-speed 7" grinder/polisher (not included). Uses standard 4" Velcro-backed tooling for fast, tool-free pad changes. Wet or dry capable.
Key Features
- Lightweight 7 lb design — 8.25" working width for fatigue-free operation
- Three 5/8"-11 threaded heads — compatible with standard backup pads, snail-lock backers, aluminum pads, leather brushes, and more
- Standard 4" Velcro-backed tooling — fast, tool-free pad changes; works with tooling you already own
- Attaches to any variable-speed 7" grinder/polisher — not included
- Dust-skirt vacuum port — for clean, safe dry operation
- Wet or dry capable — supply water for wet grinding or connect a vacuum for dry operation
- 3-year warranty — against defects in material and workmanship
Applications
- Natural stone — grind, hone, and polish marble, granite, travertine, quartzite, limestone, and slate countertops, floors, and surfaces
- Engineered stone — polish quartz, porcelain, and sintered surfaces to a consistent finish
- Concrete — remove coatings, grind high spots, hone, and polish concrete floors and countertops
- Terrazzo — restore and refinish terrazzo floors with precision
- Wood — sand and prep wood surfaces for finishing
- Surfaces — floors, countertops, stairs, ledges, pools, and walls
Recommended Tooling
The Stone Ray accepts any standard 4" Velcro-backed pad. For best results on stone and engineered surfaces:
- Weha Trio 3-Step Polishing Pads — fast 3-step dry polishing system for granite, marble, quartz, and engineered stone; delivers a high-gloss finish in three passes
- Weha Donkey Face Polish & Inline Polishing Pads — professional-grade 4" pads for face polishing and inline work on stone surfaces; ideal for edge work and detailed surface finishing
- Tenax Filiflex & Airflex Stone Texturing Brushes — 4" Snail Lock brushes for leathered and antique finishes on stone surfaces
- Tenax Silicon Carbide Antique Finish Brushes — 4" Snail Lock SiC brushes for antiquing soft natural stone
How to Use
- Attach the Stone Ray to any variable-speed 7" grinder/polisher.
- Mount your preferred 4" Velcro-backed pads to the three heads.
- For wet operation, supply water to the work surface. For dry operation, connect a vacuum to the dust-skirt port.
- Work in overlapping passes at consistent speed for even surface coverage.
Warranty
The Stone Ray is warranted against defects in material and workmanship for 3 years from the date of purchase. Warranty excludes damage caused by misuse, improper maintenance, or unauthorized modifications.