OverviewVonArx three-phase grinding machines for industrial surface preparation and finishing. Designed for concrete, terrazzo and coated floors, these grinders offer adjustable grinding pressure, compatibility with diamond tools and multiple voltage/frequency configurations for global use. Product video available.
Models presented on this page- FG250 — single-head grinder
- FG500 — dual-head grinder (2×25 cm)
- FG700-R — large industrial grinder (remote control option)
- FG700 — large industrial grinder
FG250 — Technical data (table)102250001 — 5.5 kW, 400V, 50Hz
10225000X — 5.5 kW, 480V, 60Hz
Grinding width — 25 cm / 10″
Weight — 130 Kg / 286 lbs
Traction — Manual
Vibration — Less than 2.5 m/s²
Hose connection — 76 mm / 3″
FG500 — Technical data (table)102500002 — 5.5 kW, 400V, 50Hz
102500004 — 5.5 kW, 480V, 60Hz
Grinding width — 2×25 cm / 2×10″
Weight — 180 Kg / 397 lbs
Hose connection — 76 mm / 3″
FG700-R — Technical data (table)800236 — 3×400 V / 50 Hz; 3×480 V / 60 Hz — 22.5 A
800238 — 3×230 V / 60 Hz — 38.9 A
Motor Power — 15 HP / 11 kW
Inverter Rating — 15 HP / 11 kW
Grinding Heads — 4 × 370 mm / 4 × 13.8″
Grinding Speed — 0 – 1,800 rpm
Grinding Width — 700 mm / 27.5″
Remote Control — Included (up to 30 m / 98.4 ft)
FG700 — Technical data (table)800233 — 3×400 V / 50 Hz; 3×480 V / 60 Hz — 22.5 A
800235 — 3×230 V / 60 Hz — 38.9 A
Motor Power — 15 HP / 11 kW
Inverter Rating — 15 HP / 11 kW
Grinding Heads — 4 × 370 mm / 4 × 13.8″
Grinding Speed — 0 – 1,800 rpm
Grinding Width — 700 mm / 27.5″
Notes- Machines available in different voltage/frequency configurations (400V/50Hz, 480V/60Hz and 230V/60Hz on larger models).
- Compatible with diamond tools; adjustable grinding pressure enables precise material removal and surface profiling.
- FG700-R includes remote control for safe operation and extended reach (up to 30 m).
Technical features / specifications- Voltage / Frequency: 400 V / 50 Hz, 480 V / 60 Hz (230 V / 60 Hz where specified)
- Motor power: from 5.5 kW up to 11 kW (15 HP)
- Grinding widths: 25 cm (FG250), 2×25 cm (FG500), 700 mm (FG700 / FG700-R)
- Grinding heads (large models): 4 × 370 mm
- Speed (large models): 0 – 1,800 rpm
- Example weights: 130 Kg (FG250), 180 Kg (FG500)
- Traction: Manual (FG250) — other traction options on larger models
- Vibration level: typically below 2.5 m/s²
- Hose connection: 76 mm / 3″
- Remote control: available/included on FG700-R (range up to 30 m)