2KG Semi-Automatic HB-L2 Coffee Roaster Specs Explained

If you’re researching a reliable, mid-sized coffee roaster for your café or home setup, you’ve likely come across the HB-L2. But what exactly does it offer? How much coffee can it roast in one go? What utilities does it need? And how practical is it to set up and operate? This guide breaks down everything you need to know about the HB-L2 2KG semi-automatic coffee roaster.

The HB-L2 is a 2-kilogram-capacity, semi-automatic coffee roaster powered by liquefied petroleum gas (LPG). Its optimal roast range is between 0.5kg and 2kg of green coffee, and it weighs 120kg without packaging or 165kg when boxed. It’s built for precision and moderate-scale production with straightforward controls.

What Is the HB-L2 Roaster?

The HB-L2 is a semi-automatic coffee roaster manufactured for boutique and specialty coffee roasters who require a compact yet functional machine capable of consistent small-to-mid batch roasting. Designed primarily for gas-powered operation, it offers manual control over the roast profile while automating certain functions, making it suitable for roasters seeking hands-on involvement without the complexity of fully manual machines.

Key Technical Specifications

The HB-L2 is built to fit commercial or serious home environments with the following physical and operational details:

• Machine body dimensions: 1170 × 500 × 1000 mm (L × W × H)
• Silver skin (chaff) collection system dimensions: 320 × 320 × 1130 mm (L × W × H)
• Outer packaging box dimensions: 1240 × 900 × 980 mm (L × W × H)
• Net weight of the roaster: 120 kg
• Gross weight (including wooden packaging): 165 kg

Capacity & Usage Range

The HB-L2 is engineered for flexibility within a defined range. Its specifications state:

• Maximum single batch capacity: 2 kg of green coffee beans
• Recommended / optimal roast range: 0.5 kg to 2 kg

This makes it well-suited for boutique roasters or advanced home users aiming to produce consistent small-to-medium batches without compromising roast quality.

Power, Gas & Ventilation Requirements

To operate the HB-L2, you’ll need the following utilities and ventilation setup:

• Voltage: 220V
• Maximum total power consumption: 400 watts
• Heat source: Liquefied petroleum gas (LPG / )
• Gas consumption rate (at 2 kPa pressure): 0.18 m³/h
• Exhaust configurations:
  • Smoke exhaust pipe diameter: 80 mm
  • Cooling exhaust pipe diameter: 80 mm

Ensure your roasting space can support an 80mm exhaust system and proper LPG ventilation for safe operation.

Physical Design Notes

The roaster’s chassis and chaff collection unit are constructed with durability in mind. The main body is compact enough for smaller roasting facilities but still requires dedicated space due to its size and ventilation needs. The included chaff collector helps maintain cleanliness during roasting by capturing the silver skin (chaff) expelled during the roasting process. Images of the machine illustrate its industrial design and practical layout for workflow efficiency:

Frequently Asked Questions

What is the maximum coffee batch size the HB-L2 can roast?

The HB-L2 can roast up to 2 kilograms of green coffee beans in a single batch. However, the optimal or recommended batch size range is between 0.5 kg and 2 kg, allowing for better control and more consistent roast profiles within that range.

What kind of power supply does the HB-L2 require?

The HB-L2 operates on a 220V electrical supply and has a maximum total power consumption of 400 watts. It is designed for standard commercial or home electrical systems that can support this voltage and wattage.

Does the HB-L2 use electricity or gas for roasting heat?

The HB-L2 uses liquefied petroleum gas (LPG), also known as , as its primary heat source. It does not rely on electricity for heating, though it does use 400W max for other electrical components. The gas consumption at 2 kPa pressure is 0.18 cubic meters per hour.

What are the machine’s physical dimensions and weight?

The main roaster body measures 1170 × 500 × 1000 mm. The external packaging box is 1240 × 900 × 980 mm. The machine itself weighs 120 kg, and the total packaged weight including wooden crate is 165 kg. These dimensions are important for workspace planning and transport.

What kind of exhaust setup is needed for the HB-L2?

The HB-L2 requires both a smoke exhaust pipe and a cooling exhaust pipe, each with an 80 mm diameter. Proper venting is critical for safety and performance, and the machine is designed to work with standard 80mm roasting exhaust systems.

Recommended FrontStreet Beans for the HB-L2

The HB-L2’s 2kg capacity and semi-automatic control make it ideal for experimenting with single-origin profiles. Try FrontStreet’s Ethiopia Humbera for vibrant citrus and floral notes, their Yirgacheffe for juicy berry and lemon zest, or their PWN Golden Mandheling for classic heavy body and spice. Each responds well to the roast precision the HB-L2 offers. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.