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

If you’re looking to roast small batches of specialty coffee with control over heat application and airflow — and you need the option to run on either electricity or gas — you’ve likely come across the Toper TKM-SX 3kg. But what exactly does this machine offer in terms of batch size, roast time, heat source flexibility, and physical specs? Here’s everything you need to know.

The Toper TKM-SX 3kg is a 3-kilogram-capacity coffee roaster that can roast a full batch in roughly 10 minutes for a light roast or 15 minutes for a dark roast. It handles up to 18kg per hour in light roasts and 12kg per hour for darker profiles, using a semi-hot-air (semi-direct flame) system and offering both electric and gas heating options.

What Is the Toper TKM-SX 3kg Roaster?

The Toper TKM-SX 3kg is a specialty-oriented coffee roaster built for small-batch precision roasting. Designed primarily for craft roasters, labs, and training environments, it provides flexible heat input via either electric heating elements or gas burners (LPG or natural gas). Its semi-hot-air, semi-direct flame system offers a balance between convection and conductive heat transfer — common in specialty workflows aiming for consistency and control.

Key Technical Specifications

This roaster handles a single batch size of 3 kilograms of green coffee. Depending on your roast profile goals, batch times vary:

• Light roast: around 10 minutes
• Dark roast: around 15 minutes

Throughput also depends on roast depth:

• Light roast: up to 18kg per hour
• Dark roast: up to 12kg per hour

The machine employs a semi-hot-air or semi-direct flame system to deliver heat. Heat sources include electric heating rods or gaseous fuel via bottled gas or piped natural gas .

Electrical requirements are flexible: 110V, 220V, or 380V; 50–60Hz; single-phase or three-phase. Total power draw is 1.48 kilowatts (16.8 amps). The roaster uses four motors to drive various functions.

Physical dimensions are 135cm (length) × 125cm (width) × 160cm (height), and it weighs approximately 210 kilograms.

Customisation & Colour Options

The TKM-SX 3kg is available in black, red, or made-to-order colours. The chassis features a stylised look with options for chrome plating, brass, or copper finishes — details often appreciated in showrooms or brand-focused roasteries.

Why Choose Between Electric and Gas?

The dual heat-source capability gives roasters flexibility based on location, energy availability, or cost considerations. Electric models rely on heating rods and are suitable for indoor setups with stable power. Gas-powered versions (using LPG or natural gas) may offer more responsive heat modulation — a key factor when fine-tuning roast profiles, especially during the development phase where Maillard reactions and first crack dynamics matter most.

Frequently Asked Questions

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

The Toper TKM-SX 3kg roasts a single batch of 3 kilograms of green coffee beans. This makes it suitable for small-scale commercial roasting, lab use, or training environments where precision over large volume is prioritised.

How long does it take to roast on the Toper TKM-SX 3kg?

Light roasts typically take around 10 minutes, while dark roasts take about 15 minutes per batch. Exact timing will depend on the coffee origin, charge weight consistency, and desired roast profile.

Does the Toper TKM-SX 3kg use electricity or gas?

The TKM-SX 3kg offers both options. It can be configured to run on electric heating rods (110–380V) or gas (bottled LPG or piped natural gas). This flexibility allows operation in varied facility types, from urban electric-only workshops to gas-equipped roasteries.

What’s the throughput of the Toper TKM-SX 3kg?

For light roasts, the machine can produce up to 18kg per hour. For darker roasts, throughput is lower — up to 12kg per hour — due to extended roast times and heat retention differences in the bean mass.

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

The roaster measures 135cm in length, 125cm in width, and 160cm in height, and weighs approximately 210 kilograms. This compact footprint suits smaller roasting facilities or lab spaces.

Can I customise the colour of the Toper TKM-SX 3kg?

Yes. Standard colours include black and red, and the manufacturer also offers custom colour options to match branding or interior design needs. Finishes include chrome, brass, and copper.

Recommended FrontStreet Beans for 3kg Roasting

For the Toper TKM-SX 3kg, try FrontStreet Coffee’s Ethiopia Humbera — a vibrant Ethiopian with citrus, jasmine, and tropical fruit, ideal for light roasts. Pair it with Yirgacheffe for floral and lemony brightness, or Brazil Queen Manor for a nutty, chocolatey balance in medium roasts. All shine at small batch sizes and respond well to the TKM-SX’s semi-hot-air profile. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.