Chevalier FRG-800S
Key Specifications
Table Size
Spindle Power
control
max grinding radius
max grinding height
distance table to spindle centerline
How much does the Chevalier FRG-800S cost?
Price estimate
We do not have a price for the Chevalier FRG-800S that we can stand behind, so we show no number. Configuration, options and installation move the final price a long way: a quote is the reliable figure.
Overview
The Chevalier FRG-800S starts the larger frame of the FRG rotary surface grinders. Its Ø31.5 in (Ø800 mm) hydrostatic turntable carries 2,204 lb (1,000 kg), and nearly everything around the table is heavier than on the two small models: a 15 hp (11 kW) spindle, a wider wheel and a machine weight of 14,100 lb (6,400 kg).
One construction detail is specific to this frame. Chevalier fits duo crossfeed ballscrews, which it says eliminate axis twisting. A wheelhead that travels 25 in (635 mm) across a wide table is a long, heavy slide, and driving it from two screws keeps it square to the table as the load on the wheel changes. Cross feed runs at 0 to 13 fpm (0 to 4,000 mm/min).
The wheel is Ø16 in x 2 in x Ø5 (Ø405 x 50 x Ø127 mm), and the spindle range is 600 to 3,600 rpm. That top speed is well above the 2,200 rpm of the FRG-600S, which leaves room for smaller-diameter or superabrasive wheels if the application calls for them. The table itself turns more slowly, 10 to 80 rpm, as a larger diameter needs fewer revolutions for the same surface speed.
Maximum grinding radius is R16.7 in (R425 mm) and grinding height 15.7 in (400 mm), with 19.7 in (500 mm) of wheelhead elevation. The control is the SMART iControl. The maker's floor space row for this model does not agree between its inch and metric figures, so no footprint is given here.
Full Specifications
| Parameter | Value |
|---|---|
| CNC Control | SMART iControl |
| Max Grinding Radius | R16.7 in (R425 mm) |
| Max Grinding Height | 15.7 in (400 mm) |
| Distance Table to Spindle Centerline | 21.7 in (550 mm) |
| Height Table to Floor | 35.4 in (900 mm) |
| Max Table Load | 2,204 lb (1,000 kg) |
| Table Size | Ø31.5 in (Ø800 mm) |
| Table Speed | 10 to 80 rpm |
| Cross Travel Z | 25 in (635 mm) |
| Cross Feed Speed | 0 to 13 fpm (0 to 4,000 mm/min) |
| Wheelhead Vertical Travel Y | 19.7 in (500 mm) |
| Wheelhead Feed Speed | 0 to 12.5 fpm (0 to 3,800 mm/min) |
| Spindle Speed | 600 to 3,600 rpm |
| Spindle Motor Power | 15 hp (11 kW) |
| Wheel Size | Ø16 in x 2 in x Ø5 (Ø405 x 50 x Ø127 mm) |
| Machine Weight | 14,100 lb (6,400 kg) |
Specifications sourced from chevalierusa.com — verified 2026-10-05
Strengths & Limitations
Strengths
- 2,204 lb (1,000 kg) table load on a Ø31.5 in (Ø800 mm) hydrostatic turntable
- Duo crossfeed ballscrews, which the maker says eliminate axis twisting
- 15 hp (11 kW) spindle with a 600 to 3,600 rpm range
- Ø16 in wheel, 2 in (50 mm) wide, for a broader contact than the smaller models
- 25 in (635 mm) of cross travel at up to 13 fpm (4,000 mm/min)
Limitations
- Table speed stops at 80 rpm; the FRG-600S reaches 150 rpm
- At 14,100 lb (6,400 kg) the machine needs a proper foundation and rigging plan
- No usable floor space figure in the maker's table
- Grinding height is limited to 15.7 in (400 mm)
Best For
Frequently Asked Questions
01
Chevalier's statement is that duo crossfeed ballscrews eliminate axis twisting to ensure rigidity for surface finishes. In practice two screws drive the cross slide from both sides, so the wheelhead stays square over its 25 in (635 mm) of travel instead of yawing under an off-centre load.
02
Maximum table load is 2,204 lb (1,000 kg) on a Ø31.5 in (Ø800 mm) table. The FRG-1000S, built on the same frame, takes 2,644 lb (1,200 kg) on a Ø39.4 in (Ø1000 mm) table.
03
Spindle motor 15 hp (11 kW), spindle speed 600 to 3,600 rpm, wheel Ø16 in x 2 in x Ø5 (Ø405 x 50 x Ø127 mm). The spindle is supported by six Class 7 (P4) ultra-precision angular contact ball bearings, and wheel balance can be adjusted in the machine.
04
Maximum grinding height is 15.7 in (400 mm). The distance between the table and the spindle centerline is 21.7 in (550 mm), the wheelhead has 19.7 in (500 mm) of vertical travel, and the table surface is 35.4 in (900 mm) above the floor.
