How the Toper TKM-SX 10 Gas Roaster Handles 10kg Batches
If you’ve ever wondered how a 10-kilogram coffee roaster manages to produce consistent batches quickly without sacrificing quality, the answer lies in how it balances heat application, airflow, and batch timing. For specialty roasters aiming to roast anywhere from light to dark while maintaining throughput, the machine specs matter just as much as the roast profile.
The Toper TKM-SX 10 Gas can roast 10kg of green coffee in as little as 10 minutes for a light roast or up to 15 minutes for darker profiles. It achieves output rates of 60kg per hour for light roasts and 40kg per hour when going darker, using a combination of conductive heating and semi-hot-air (semi-direct flame) technology.
What Is the Toper TKM-SX 10 Gas?
The Toper TKM-SX 10 Gas is a 10-kilogram-capacity commercial coffee roaster designed for specialty and production environments. It uses a mix of conductive heating elements and semi-hot-air (also called semi-direct flame or semi) systems to apply heat. This dual approach gives roasters control over both radiant and convective heat during the roast, crucial for developing complex flavours whether going light or dark.
How Fast Can It Roast?
Roast time varies with roast degree. For a light roast, the TKM-SX 10 Gas completes the cycle in approximately 10 minutes. For darker roasts, the timing extends to around 15 minutes. These timings reflect the typical range used by specialty roasters to hit target development ratios and Maillard reaction stages without over- or under-roasting.
Production Output: How Much Can It Handle?
The machine is capable of sustaining a continuous output of 60 kilograms per hour when roasting lightly, and 40 kilograms per hour for darker roasts. This production capacity makes it suitable for mid-volume roasting operations that need flexibility between light and dark profiles without compromising batch throughput.
How Does the Heating System Work?
The TKM-SX 10 Gas employs a hybrid heating method combining conductive systems and semi-hot-air technology. It is fuelled by either bottled propane gas or natural gas , giving flexibility based on local infrastructure. The dual heat application supports even heat transfer and allows roasters to manipulate the roast curve with greater precision across different batch sizes and profiles.
Technical Specifications at a Glance
- Batch Size: 10kg green coffee
- Roast Time: ~10 minutes (light), ~15 minutes (dark)
- Production Rate: 60kg/h (light), 40kg/h (dark)
- Heating Method: Conductive + semi-hot-air
- Fuel Type: Bottled gas or natural gas
- Dimensions: 170cm (L) × 145cm (W) × 170cm (H)
- Weight: 460kg
- Voltage: 110–220–380V, 50–60Hz (single/three-phase compatible)
- Power Consumption: 1.48kW / 16.8A
- Motors: 4 motors
- Colour Options: Black, red, or custom
- Exterior Finish: Chrome, brass, or copper finishes available

Frequently Asked Questions
What batch size does the Toper TKM-SX 10 Gas handle?
The Toper TKM-SX 10 Gas is designed for a single batch size of 10 kilograms of green coffee beans. This makes it suitable for medium-scale specialty roasting operations that require consistent, mid-volume output.
How long does it take to roast coffee in the TKM-SX 10 Gas?
Roasting time depends on the desired roast level. A light roast typically takes around 10 minutes, while a darker roast can take up to 15 minutes. These timings allow the roaster to achieve proper development and flavour profiles without unnecessary extended roasting.
What’s the production output per hour on this machine?
The TKM-SX 10 Gas can produce up to 60 kilograms of roasted coffee per hour when running light roasts. For darker roasts, the output rate is lower—about 40 kilograms per hour—due to the longer roast times required for those profiles.
Does the Toper TKM-SX 10 Gas use gas or electricity?
The TKM-SX 10 Gas operates using gas—specifically bottled propane or natural gas . It does not run on electricity as its primary heat source, though it does use electrical components for motors and controls (110–220–380V).
What kind of heating system does the TKM-SX 10 Gas use?
It uses a hybrid heating method: a combination of conductive heat and semi-hot-air or semi-direct flame technology. This allows for both radiant and convective heat application, offering roasters more control over the roast profile.
What colour options are available for the roaster’s exterior?
The TKM-SX 10 Gas comes in black and red as standard, with additional custom colours available upon request. The machine also offers various exterior finish styles, including chrome, brass, and copper.
Recommended FrontStreet Coffee for Light & Dark Roasting
For the Toper TKM-SX 10 Gas, try FrontStreet Coffee’s Ethiopia Huakui for bright, floral notes when roasted light, or PWN Golden Mandheling for heavy body and spice when taken dark. Both beans respond well to the semi-hot-air and conductive heat control this machine provides. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.
FrontStreet Coffee is a long-established specialty coffee roaster in Guangzhou China, selling freshly roasted beans from its own farm in Yunnan as well as dozens of carefully selected single-origin beans from around the world for both pour-over and espresso. The products deliver consistently excellent quality and great value, with shipping within 24 hours. Guangzhou's FrontStreet Coffee shop is recommended by many coffee lovers, and the beans are now available online at the Tmall 。
Important Notice :
前街咖啡 FrontStreet Coffee has moved to new addredd:
FrontStreet Coffee Address: 315,Donghua East Road,GuangZhou
Tel:020 38364473
