23 Feb SIEBENSTER 60 kg Coffee Roaster Installation in Daegu

We installed a SIEBENSTER 60 kg roaster and destoner (two sets) in Daegu.

Because it is a long trip and the installation takes a long time, we finished all preparations the night before and set out.

Our estimated arrival time was 8 a.m.

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From morning until night, a team of 5 worked for a full 10 hours or so to complete the entire installation.

It’s hard to get a sense of the size from photos alone, isn’t it?

This is how big it looks next to a person who is about 183 cm tall.

In person, its grandeur and presence are beyond words.

What makes the SIEBENSTER 60 kg roaster special?

Overwhelming Value for Money

As Korea’s coffee industry enters its maturity stage, the shift beyond roastery cafes toward large-scale production facilities, or ‘roasting plants,’ is accelerating.

In this trend, the most important core competency goes beyond simply roasting coffee: it is ‘mass production of consistent quality’ and ‘maximizing operational efficiency.’

When choosing equipment of 60 kg or larger, the range of options inevitably narrows. Among equipment with a track record of supplying many large machines in Korea and operating stably, SIEBENSTER boasts overwhelming value for money.

However, the value for money we mean here does not refer to simple low-cost equipment.

It means an ‘optimal return on investment’ that maximizes both the cost-effectiveness of acquisition and the efficiency of maintenance, while maintaining performance on par with European high-end large roasters. In a large-scale roasting business, the initial equipment investment translates directly into a fixed-cost burden.

With its reasonable acquisition cost, the SOP-60 helps your business stabilize early and gives you the opportunity to reinvest the capital you save in green coffee sourcing or marketing.

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Outstanding Stability

Above all, because large equipment is a full-scale production machine, stability is important. Quality must be uniform across continuous batches, and the durability of parts and the heat storage design are important. In that respect, SIEBENSTER large roasters show high stability even through nonstop batches all day long, thanks to a thick cast-iron body and drum and thorough insulation.

The SOP-60 uses cast iron of a weight and thickness that sets it apart from ordinary roasters.

From a thermodynamic perspective, the mass of the drum and body is directly tied to thermal inertia.

SIEBENSTER’s high-density cast structure holds heat deep inside once it has been heated, physically blocking the slight temperature variations that can arise from changes in the external environment or during continuous batches.

This is the key driver that ensures the first and last batches produce identical results, even in factory-type environments that run continuously for more than 10 hours a day.

Once thermal stability is secured, the roaster operator can focus more on managing the overall production process and quality inspection, instead of clinging to flame adjustments every moment.

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Safety

SIEBENSTER roasters comply with industry standards.

To prepare for emergencies, we also use a special Japanese-made gear motor. In the event of a power outage or a situation where the drum stops, it must be possible to rotate the drum, but with an ordinary gear motor, the gear ratio makes it practically impossible to rotate the drum by hand.

SIEBENSTER’s motor operates at a 1:1 ratio, and using the crank provided with it, you can easily remove the beans inside in an emergency.

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Convenience

All connections on SIEBENSTER’s large equipment are cable-based. This is an advantage not only when moving the equipment but also for maintenance.

For data logging, Artisan, Firescope, and others are also supported over Wi-Fi, and a convenient shelf is provided with the machine.

It may seem like nothing special, but once you actually use it, you will see how big an advantage that one shelf is.

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Technology

Whether on large equipment or small, using SIEBENSTER’s automation with it gives you a remarkable level of convenience, and we also take considerable pride in its technical superiority.

SIEBENSTER’s roaster automation is a refined system built on a PID (Proportional-Integral-Derivative) control algorithm.

The SOP-60 goes beyond simply tracking temperature: it calculates heat-source feedback in real time, enabling error-free profile reproduction.

In particular, the entire process, from green coffee charging through batch operation according to a pre-designed profile, cooling after discharge, and removal of foreign matter via the destoner, is handled by one-stop automation.

This full-automation system not only dramatically reduces human error but also creates an environment in which a single skilled roaster operator can run several machines at the same time, letting you achieve both labor cost savings and higher productivity.

The exhaust system also stands out for SIEBENSTER’s original design.

Aerodynamic precision is completed in the 2-way damper system. The dual dampers, arranged horizontally and vertically, let you customize the ratio of conductive heat to convective heat with extreme precision. Particularly noteworthy is the ‘convection bypass’ function provided by the vertical damper.

By physically regulating the amount of hot air passing through the drum, this makes it possible to roast in depth, delivering heat to the core of the green coffee without scorching only its surface.

With this function, a roaster operator can design an unlimited spectrum of flavors on a single machine, from light roasts that emphasize acidity to dark roasts that prize body.

The open-type (airlock) cyclone used on the SOP-60 is the best solution to chaff buildup in the ducting, a chronic problem in operating large equipment.

When the enormous amount of chaff and dust generated during high-volume roasting accumulates inside the ducting, it obstructs airflow and can even cause a fire. This is all the more true in a factory environment that must run nonstop continuous batches.

The airlock method uses the pressure difference and vortex inside the cyclone to exhaust smoke and air while forcing only the chaff out through the bottom, keeping the ducting clean. This dramatically extends maintenance intervals and minimizes equipment downtime, maximizing the factory’s effective operating rate.

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Scalability

The SOP-60 offers a variety of paid options designed with business scalability and safety in mind.

The first is the fire prevention system and the in-drum conching function.

In a large roaster, fire is a critical risk that threatens the survival of the business.

SIEBENSTER’s safety system responds immediately when abnormally high temperatures occur, and its conching function stabilizes the temperature of the beans before discharge, increasing the cooling speed and preventing flavor loss. This is one of the key quality control (QC) functions in a mass-production setup.

In addition, the automation system and airlock cyclone mentioned earlier can be selected as options according to the factory’s scale and production goals to configure an optimized line.

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Finally, the ultimate goal of the SIEBENSTER SOP-60 is a ‘fully automated plant installation.’

Going beyond installing a single automatic roaster, the entire process can be integrated into one control system, from the automatic silo that stores green coffee through the conveying line, automatic roasting, destoning, automatic packaging, and the automatic palletizing machine.

It is possible to build a ‘smart factory’ in which a central control room monitors and records data for the entire line (temperature, gas pressure, humidity, production volume, etc.) in real time.

This scalability provides a strong foundation for flexibly adding equipment and upgrading your management systems as your business grows.

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The SIEBENSTER SOP-60 is not simply a machine that roasts coffee; it is a product of precision engineering that designs the success of a roasting business.

From the reliability of solid cast iron and the efficiency of cutting-edge automation to meticulous design for safety and quality.

The SOP-60 will be the most dependable partner as your roasting plant builds world-class competitiveness.

The overwhelming convenience that technology delivers and the consistent flavor that data proves: this is SIEBENSTER’s proposal for the roasting industry.