Stronghold Technology

SPECIFICATIONS

Tower Black

- W X D X H
  55.90 X 49.21 X 75 inch
- Weight
  310kg(683lb)
- Maximum Bean Input
  8kg(17.64lb)
- Voltage
  380V
- Electrical Output
  24.3kW
- Hot Blast Heater
  16kW
- Halogen Heater
  5.2kW
- Stirring Wings Motor
  200W
User-friendly touchscreen interface

10.1” display

Sensors
Internal/Tower Drum/Hot Air/Exhaust temp

20 level discrete control over
convection and radiation heat

10 level Stirring wing motor speed control

ROR display

Automatic profile data logging

Manual/Program mode

Profile Auto Replication

Safety Features
(emergency discharge, automatic shutdown, etc.)

Fast cooling
(Room temperature in 1.5 min)

Automatic system upgrade
(Android OS)

INTERIOR

Exterior Interior

LET'S ROAST WITH S9!

01 Setting up
02 Preheating
03 Roasting
04 Discharging/Cooling
05 Consecutive Roasting

Convenient management of
roast records with its embedded
software that keeps track of
every roast.

All roasting data is automatically logged, which makes it much easier to manage roast profiles
and production history. You can add a name, descriptions, and memos to each of your profile.
Consistently roast high quality
coffee with reliable preheating
and precise heat control.

Input heat level of natural gas varies by the pressure level, which can fluctuate even throughout a single
day. Gas pressure gauge can help measure the change in pressure, but it requires the user to readjust the
input heat level to the roaster according to the change in pressure. In addition, because the dial levels of
gas roasters are not proportional to the actual amount of gas input, it becomes even more difficult to
measure the amount of heat transferred to the beans real-time.

On the other hand, electric roasters like S9 is not affected by the difference in pressure level and each
control level is directly proportional to the amount of heat input.

Larger the batch size, greater the loss if roast is scorched or burnt. Users of S9 repeatedly tell us that the
accurate measurement and control of the heat sources significantly help reduce the loss rate.
Both drum interior and drum
wall temperatures are heated
to preset temperature levels.

The first and foremost element to invariable replication of saved roast profile is the consistent
temperature of the air inside the drum and of the drum wall when the bean is inserted.

Measurement of traditional gas roaster’s drum wall temperature was simply not available and even when
measured, the same temperature rating would yield different roasting results due to the difference in
external environment, bean condition, and other uncontrollable variables. Though equipped with a
variety of other measurement sensors, traditional roasters could not accurately predict the roasting trend
without accurate and continuous temperature measurement of the drum wall.

The smart roaster S9 measures temperature of the drum wall and the drum interior, and preheats them
to the target temperatures. The Tower Drum sensor is embedded inside the stationary 5 layer drum
structure and continuously measures and adjusts its temperature to perfectly mark target temperatures.
No need to be waiting in front
of the roaster while preheating.

Set the two preheat temperatures, drum interior and the drum wall. The machine automatically heats up
until both preset temperatures are reached. Message ‘Preheat complete. Ready to roast’ pops up on the
screen with an alarm notification.
No need to set a timer nor constantly check the thermometer. S9 will notify you when it is ready for
another batch at the exactly same preset temperatures.
Take full control over the
roaster with the tip of your
finger.

You can easily control the hot air (convection heat) and the halogen (radiation heat) levels on the touch
display, monitor the progress of your roast real-time, and automatically save all roasting data in the
embedded Roastware. The intuitive control interface over the touchscreen is a privilege only available to
users of the smart roaster.
Smart is now smarter with
additional features.

Additional measurements and features offer roasters more control over the roasting environment.
1. Hot air and halogen can be controlled in 20 levels
2. ROR (Rate of Rise) display
3. Hot air and exhaust temperature sensors
4. 10 level control over stirring wing speed
5. Advanced data logging feature
With all measurements displayed real-time, S9 is optimized to consistently produce the best quality beans.
Heat control is the key to coffee roasting

You can discretely control the hot air (convection) and the halogen (radiation) intensity from 0 to 20
levels.
Precise and discrete control over the two heat sources allows users to develop and explore a wider range
of flavors.
Faster cooling prevents post
discharge development of
beans

The cooling fan cools down the temperature of roasted beans to the room temperature within 1 min.
30 sec, which is approx. 1/3 of the time required by other roasters. Faster cooling prevents the residual heat
of the beans to further develop after discharging.

*Relationship between cooling time and coffee flavor: According to a research, cooling duration after
roast can have a significant impact on the flavor of beans. Exceeding 4 minutes, ‘sweetness’ of beans is
significantly reduced. In general, the longer it takes to cool, the higher chances of over-roasted or
parched beans, resulting in imbalanced taste.
No need to wait for some
minutes to cool down. Finish the
batch as soon as you are done
roasting.

5 layer drum structure is designed to react quickly to change in heat control and with high durability.
Unlike the traditional drum roasters, which the roaster had to stand around after roasting to gradually
cool down the drum to prevent deformation, the S Series has eliminated such inefficiency as it can be
shut down immediately and be entirely intact.
By preheating the drum while
cooling previous batch, you
can save time and increase
productivity.

Preheating for a consecutive roast begins while cooling.
By reducing the lead time to re-heat the drum, S9 can roast 4 batches an hour.
*Batches per hour can vary depending on green beans or planned roast level
Spend your valuable time on
other tasks. S9 will take care of
consistency with its smart
replication feature.

Once roast profile has been saved, there is no need to manually replicate the profile on your
own. Smart roaster S9 can replicate saved profiles with high precision and accuracy – from
control of heat, discharging, to cooling. Leave roasting to S9 and go spend your valuable time
on other matters such as attending your customers, marketing, packaging, cupping, etc.

Learn about our replication feature

Profile Auto Replication
Customers do not become loyal to a coffee shop that “sometimes” has great coffee. Simply put, consistency is key to building a strong brand. What if you could save all your roast profiles and precisely replicate them whenever, wherever, and by whoever with just a touch of a button? Well, NOW YOU CAN, with the S Series. Using PID principle, our proprietary heat control algorithm makes micro level heat adjustments to immediately react to any divergence from the saved roast profile, replicating your favorite roast with consistency beyond human capabilities. Go spend more time with your customers or your loved ones, work on new menus, finish your paperwork, do what you gotta do that makes you happy. Let the S Series take care of the roasting part of your life.

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