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Choyal's patented Emery Stone Dresser turns a slow, skilled, manual job into a plug-and-play operation. One operator dresses a 20", 24", 30" or 48" stone with machine-perfect grooves - every time. Built for flour mills that can't afford the downtime.
Talk to a Choyal engineer
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What changes the day this machine arrives at your mill
Built for owners tired of losing whole shifts to manual stone dressing.
Hours of work, done in minutes
Each groove is dressed in just 3–4 minutes. A full stone that used to take a half-shift is back in production before lunch.
Free up your skilled labour
No specialist stone-dresser needed. Any trained operator can run the machine — your senior fitters stay focused on the mill itself.
Consistent grooves, every stone
Machine-controlled taper, depth and width. No more operator-to-operator variance and no more "this stone won't run right" complaints.
Less downtime, more output
Faster dressing means fewer hours offline per stone, per month. For a busy plant, that adds up to weeks of extra production per year.
Safer for your operators
Emergency stop, thermal overload protection, low-vibration frame and noise-reducing operation — the safest way to dress a stone today.
Pays back faster than manual dressing
Carbide-tipped cutters last for thousands of strokes, the motor is energy-efficient, and maintenance is minimal. Most plants recover the cost within a year.
Everything you'd want in a serious stone-dressing machine
Each feature was added because a real mill operator asked for it.
Precise feeding system
- Groove width: 50, 75 or 100 mm in a single stroke
- Operator-adjustable depth
- Factory-set taper maintained automatically
Carbide-tipped cutters
- Long-lasting cutting tools
- Quick & easy tool change system
- Built-in tool tray for operator convenience
Heavy-duty frame
- Compact, space-saving design
- Lockable wheels for shop-floor mobility
- Epoxy & powder-coated paint finish
Safety & motor protection
- Emergency stop button
- Thermal overload motor protection
- Low-vibration, noise-reducing design
Stone-holding & lifting options
- Manual or pneumatic stone-holding system
- Optional motorised crane & hoist for stone lifting
- Optional dust blower / duct collection system
Plug-and-play operation
- 3-Phase 415 V / 50 Hz compatibility
- Supplied with custom electrical control panel
- Ergonomic, user-friendly control interface
Carbide-tipped, machine-fed, ready in under a minute.
The cutting head is the heart of the machine. Tool changes are quick — a single bolt, no recalibration. Combined with the precise feeding system, the operator simply sets depth, selects width, and presses start.

Compare the specs side-by-side
Why manual dressing is costing you more than just operator salary.
| Performance & Specs | Choyal Stone Dresser | Manual Dressing |
|---|---|---|
| Time per groove | 3–4 minutes | 30–45 minutes |
| Operator skill needed | Any trained operator | Specialist stone-dresser |
| Groove consistency | Machine-controlled | Varies stone-to-stone |
| Taper accuracy | Factory-set, maintained automatically | Operator's judgement |
| Operator safety | Emergency stop, low vibration, thermal protection | Manual exposure, fatigue, dust |
| Dust handling | Optional blower / duct collection | Ambient dust on the shop floor |
| Stone-lifting | Optional motorised crane & hoist | Manual handling |
The specifications listed above represent standard comparative configurations. Optional systems such as pneumatic holding clamps, motorised hoists, and blower/collector units are available upon request. To configure the exact layout for your mill size, please contact us.
Answers to the questions buyers usually ask
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