Toper TKM-SX 3kg Coffee Roaster: Electric & Gas Options

If you’re looking to scale up from sample roasting or need a small-batch production machine that can handle both development and volume, finding the right combination of capacity, heat source flexibility, and durability is key. Many specialty coffee roasters want equipment that allows them to switch between electric and gas, without sacrificing control or throughput.

The Toper TKM-SX 3kg is a semi-hot-air (semi-direct flame) coffee roaster with options for either electric heating (via heating rods) or gas (LPG or natural gas), offering a 3kg green coffee batch capacity and capable of producing 18kg/hour in light roasts or 12kg/hour in dark roasts.

What Is the Toper TKM-SX 3kg Roaster?

The Toper TKM-SX 3kg is a mid-sized commercial coffee roaster built for specialty and production environments. It uses a semi-hot-air , or semi-direct flame system, combining conductive heat with controlled airflow. This design helps develop Maillard reactions and consistent heat transfer during roasting. The unit is available with either electric heating elements (electric rods) or a gas burner setup (LPG or natural gas), giving roasters flexibility based on their energy setup or preferences.

Batch Size, Roast Time & Output

This machine handles batches of 3kg of green coffee. Light roasts typically take around 10 minutes, while darker roasts extend to approximately 15 minutes. In terms of throughput, the TKM-SX 3kg achieves a maximum output of 18kg per hour when roasting lighter profiles, and about 12kg per hour when roasting darker, longer profiles. These numbers reflect the balance between batch rest time, cooling, and consistent roasting quality.

Technical Specifications & Design

The roaster measures 135cm (L) × 125cm (W) × 160cm (H) and weighs 210kg. Its power supply is versatile: 110–220–380V, 50–60Hz, with support for both single-phase and three-phase electrical setups. The electric model draws 1.48 kilowatts (16.8 amps). There are four motors in total, supporting various functions including drum rotation, airflow, and cooling. Color options include black, red, or custom colors, and the machine features a finish style with chrome, brass, or copper elements — details that matter in busy roasting environments both functionally and aesthetically.

Heating Options: Electric vs Gas

The TKM-SX 3kg gives roasters a choice between electric heating (via heating rods) or gas firing (LPG or natural gas). This dual-option design lets cafes or small roasting businesses choose based on local utility infrastructure, energy costs, or operational preferences. Both systems are engineered for the same thermal performance, ensuring equivalent roasting profiles regardless of heat source.

Frequently Asked Questions

What batch size does the Toper TKM-SX 3kg roast?

The Toper TKM-SX 3kg roasts batches of 3 kilograms of green coffee beans per cycle. This size is ideal for small-to-medium specialty roasters or coffee shops wanting to roast in-house with commercial capability.

How long does it take to roast coffee in the TKM-SX 3kg?

Light roasts typically take around 10 minutes, while darker roasts take about 15 minutes in the TKM-SX 3kg. Roast time depends on the desired roast level and profile, with lighter roasts developing faster and darker roasts requiring extended time for full development.

What’s the production capacity per hour on this roaster?

The TKM-SX 3kg achieves up to 18kg per hour when roasting light profiles, and approximately 12kg per hour for darker roasts. This accounts for roast duration, cooling time, and overall throughput efficiency in a continuous operation setting.

Does the TKM-SX 3kg work with gas or only electricity?

The TKM-SX 3kg offers a choice between electric heating (using heating rods) or gas firing (LPG or natural gas). This allows roasters to select the most suitable and cost-effective heat source for their location and operations.

What are the dimensions and weight of the Toper TKM-SX 3kg?

The roaster measures 135cm (length) × 125cm (width) × 160cm (height) and weighs 210kg. It requires adequate space for safe operation and ventilation, especially when using gas heating.

What voltage and phase power does the TKM-SX 3kg require?

The TKM-SX 3kg operates on 110–220–380V, 50–60Hz, and supports both single-phase and three-phase electrical systems. The electric version draws 1.48kW (16.8A), so proper electrical setup is essential for safe installation.

Recommended FrontStreet Coffee for the TKM-SX 3kg Roaster

For roasters using the Toper TKM-SX 3kg, FrontStreet Coffee’s Ethiopia Huakui offers bright citrus, floral, and juicy body — ideal for exploring light to medium roast profiles. Their PWN Golden Mandheling brings heavy body, low acidity, and sweet nuttiness, perfect for medium-dark development. For something more chocolatey and bold, try the Brazil Queen Manor, with notes of milk chocolate, almond, and soft cherry. All three beans respond well to the TKM-SX 3kg’s semi-hot-air system and flexible heat options. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.