“Does this work with 110 volts?” — after price and shipping, voltage is the question international buyers ask us most often. Order a roaster built for the wrong power supply and you face an expensive retrofit, or a machine that simply will not start. This guide explains coffee roaster voltage requirements by country and machine size, so your quotation is right the first time.
Why Voltage Matters Even on a Gas Roaster
A common misconception: “My roaster is gas, so power does not matter.” Every drum roaster — gas or electric — uses electric motors for the drum, cooling fan and exhaust fan, plus a control panel. A gas roaster typically draws only 0.5–2 kW, but that power must still match your wall socket in voltage, frequency and phase. Fully electric roasters draw far more (3–20+ kW), which is why electric heating is mainly offered up to the 3 kg class for single-phase buyers.
The Three Numbers You Must Tell Your Supplier
- Voltage — 110–120V, 220–240V, or 380–415V
- Frequency — 50 Hz or 60 Hz (affects motor speed; a 50 Hz motor on a 60 Hz grid runs ~20% fast)
- Phase — single-phase or three-phase
All three are factory configurations. Changing them before production costs nothing; changing them after delivery means replacing motors and control components.
Voltage by Region: Quick Reference
| Region | Typical supply | Notes for roaster buyers |
|---|---|---|
| Canada | 120V / 60 Hz | 1–2 kg electric models available in 110–120V; larger machines use 220V (dryer-style) circuits |
| Mexico, Central & South America | 110–127V or 220V, 50/60 Hz mixed | Varies by country — confirm both voltage and frequency; Argentina/Chile are 220V 50 Hz, Colombia/Ecuador 110–120V 60 Hz |
| Europe & UK | 230V / 50 Hz | Standard configuration; CE documentation available on export models |
| Middle East & GCC | 220–240V / 50 Hz (KSA partly 60 Hz) | Saudi Arabia uses 230V/60 Hz in most areas — state your city; full details in the Saudi & Gulf buyer guide |
| Southeast Asia | 220–230V / 50 Hz (Philippines 60 Hz) | The Philippines is 220V but 60 Hz — a detail often missed; see our Philippines buyer guide |
| Africa | 220–240V / 50 Hz | If grid power is unstable, choose gas heating with low electric load; a small stabilizer protects the control board — more in our Ethiopia & East Africa guide |
| Australia & NZ | 230V / 50 Hz | Standard configuration |
Single-Phase vs Three-Phase: Where Is the Line?
- Up to 12 kg (gas heating): single-phase 220–240V is normally enough, because gas provides the heat and electricity only runs motors and controls.
- Electric heating above ~3 kg: heating elements push the load beyond what a single-phase circuit handles comfortably — three-phase becomes necessary.
- 20 kg and above: plan for 380–415V three-phase regardless of heat source. Larger motors and optional afterburners need it.
If your building has no three-phase supply, tell us early — on many mid-size machines we can configure the motor package for single-phase operation.
Plugs, Breakers and Installation Details
“Where are the plugs for the machines?” is a real question from a recent buyer — and a fair one. Export machines above 2 kW are normally shipped without a molded plug, because plug standards differ by country. Your electrician hard-wires the machine or fits a local plug to the supplied cable. Prepare:
- A dedicated circuit with the breaker size stated on your quotation (typically 10–16A for gas models)
- Grounding — mandatory for all machines with PLC or digital controls
- For unstable grids: a voltage stabilizer sized to the control load
FAQ
Can I run a commercial coffee roaster on 110V?
Yes — 1–2 kg electric machines and sample roasters can be built for 110–120V/60 Hz, and gas machines only need 110V for motors and controls. Confirm your voltage when requesting a quote.
What happens if I plug a 50 Hz roaster into a 60 Hz grid?
Motors run roughly 20% faster than designed — drum RPM and airflow change, and roast profiles shift. Always order the machine built for your grid frequency.
Do I need three-phase power for a 10 kg roaster?
Not usually. A gas-heated 10–12 kg machine runs on single-phase 220–240V. Three-phase becomes standard at 20 kg and above, or for electric heating.
Can the voltage be changed after delivery?
Only by replacing motors and control components — expensive and slow. Voltage is a free factory configuration before production, so specify it in your first inquiry.
Get a Voltage-Correct Quote
Send us your country, city, batch size and heat preference (gas or electric). Our engineers confirm voltage, frequency, phase and breaker size in the quotation — in writing — within 24 hours. Inquiry form or WhatsApp +86 184 0771 4607 (Leon). New to sizing? Read how to choose the right roaster capacity first.
Last updated: July 13, 2026