Roasting Technology
The only Chinese manufacturer keeping pace with German technology — here is what that means in the metal.
±0.1°C temperature chasing
Yoshan full-automatic roasters hold temperature difference within ±0.1°C while chasing the target curve — record your golden batch once, then replay it exactly. We are currently the only factory in China achieving this standard.
- PLC touch-screen automation (Siemens on YS & industrial SD)
- German dual thermocouple detectors for bean & hot-air temperature
- Artisan software support via USB and Bluetooth
Cast iron, done properly
Cast-iron drums and bodies hold heat longer and deliver the conductive energy that builds body and sweetness. SD production models add double-layer drums and Weishaupt burners — the same brand trusted by Probat — on the same semi hot-air, half direct-fire principle.
- Semi hot-air + half direct-fire across the range
- Adjustable airflow on every size to set the balance of contact heat and hot air
- Four independent Japanese ADDKA motors (YS series)
- OMRON pneumatic servo on industrial lines
Time control that locks flavor
Cooling is calibrated to 2 minutes for specialty and 2.5 minutes for blends, with a 13-second discharge window. Large independent stirring plates enable genuine 24-hour continuous roasting.
Industrial dust and exhaust removal systems are designed by a 30-year experienced installation team, customized to your factory layout.
Want the full technical dossier?
Drum drawings, burner specs and installation requirements for any model — free on request.
Last updated: September 14, 2026