The Silon ZR7 is the ultimate expression of power and precision in cocoa roasting. It promises unlimited roasting possibilities and an exceptional roasting experience by delivering conductive heat closer to the beans than ever dared before. Chocolatiers, we dedicate this roaster to you, giving you absolute control, complete flexibility, and the power to achieve and repeat your exact desired profile.
Built-in magnifying lens with integrated lighting for precise, close monitoring
Swift, responsive pneumatic doors quickly load the drum or release the roasted beans.
Easily pour cooled beans to the designated container or a bag placed inside.
Precisely monitor in-drum pressure to ensure consistent results and smooth operation.
Clear visual monitoring of the roasting process
Necessary safety measure in an extreme event of fire inside the drum.
Built with precision metalwork, and premium hardware for best reliability.
Intuitive touch screen interface for smooth, responsive control
Perfect heat dispersion assures essential cocoa compounds are fully developed and enhanced during the roasting process.
A unique combination of conduction and controlled convection assures the final profile displays excellent, high aroma levels.
Advanced thermodynamic design and a clean, precise combustion method secure a high-quality, smooth cup profile.
Engineered for high-output performance with minimal power consumption, ensuring maximum energy savings and a reduced carbon footprint.
Record and analyze your roasting profiles with ease. The Silon ZR7 is compatible with all popular roast logging software.
Regular software updates are developed by our team and can be downloaded via Wi-Fi, allowing even older models to benefit from the latest improvements and features.
The Silon ZR7 features an extremely compact footprint, and is the most efficient 7kg roaster on the market. allowing it to integrate easily into your current setup without taking up much space or compromising on quality.
Backed by an experienced technical team and a global network of authorized distributors, the Silon ZR7 is supported with responsive after-sales service, expert technical guidance, and long-term service availability to ensure reliable performance for years to come. With three decades of experience building top-quality coffee roasters, Coffee-Tech Engineering is a partner you can rely on.
Built with premium materials and carefully selected components, the Silon ZR7 is engineered for durability, consistent performance, and long-term reliability. The Silon has continuously evolved over the years, with first-generation machines still operating today.
Bean, drum, and exhaust temperatures are continuously monitored with three integrated probes for precise thermal control, and allowing high repeatability.
The Silon ZR7 is built with a sealed structure that prevents emissions from escaping into the roasting space, ensuring a safe and controlled working environment. An integrated in-drum fire extinguisher allows for immediate response in the event of a drum fire. In addition, a manual safety crank enables the roastmaster to evacuate the beans manually in the event of a power loss, ensuring full control under all operating conditions. At Coffee-Tech Engineering, safety is engineered with responsibility and intention, because protecting the roastmaster is as critical as protecting the roast.
Batch Capacity
1-7 kg (2.2-15.5 lbs) of Fresh Cocoa
Roasting Cycle
11-17 minutes for a full batch
Hourly Output
Approx. 28kg (62 lbs)
Quality and safety compliance
CE, RoHS, EMC
Electrical Specifications
230/380V | 50/60Hz | 1250W
Drum Motor
Individual, heavy duty gear motor. Digital variable drum speed control comes standard
Heating Source
Gas: L.P.G. / Natural Gas (7-20 kw) fully modulated burner
Cooling Blower
High capacity cooling blower, cooling time is about 2-3 minutes
Chaff Evacuation
Cyclone chaff collector with booster blower - for clean roasting and cleaner exhaust
Bearings
Heavy duty, precision bearings. Long intervals between required maintenance
Dimensions
121W x 150D x 153H cm (48" x 49" x 60")
Weight
255 kg (562 lbs)
Body
Full precision metal work, top quality hardware, galvanized steel, carbon steel and stainless steel
What is the batch capacity range of the Silon ZR7?
The Silon ZR7 offers a versatile batch capacity of 1–7 kg (2.2–15.5 lb). This wide range allows roastmasters to handle everything from small-batch profile development to full-scale production without compromising on quality either way.
Who is the Silon ZR7 designed for?
We designed this machine for professional Roastmasters who demand absolute control and accuracy from their roaster It is ideal for specialty roasteries that require precision, repeatability, and the flexibility to shape complex flavor profiles.
Is the Silon ZR7 Smokeless?
If you choose so, yes. The Silon ZR7 supports two integrated solutions: a gas-powered Afterburner for total emission elimination, or the Commercial Avirnaki, our electric smoke eliminator. Whichever works for you, both are high-quality products developed by us to integrate seamlessly with your roaster.
How does the Silon ZR7 ensure roast repeatability?
Consistency is achieved through a sub-atmospheric combustion chamber and ceramic insulation. By isolating the roasting environment from external fluctuations such as ambient temperature and humidity - the Silon ZR7 reproduces your set profiles with absolute accuracy.
What makes the Silon ZR7 drum design superior?
Our in-house designed Vortex TO4 aerodynamic drum creates a precise spiral airflow pattern that maximizes bean-to-surface contact and heat transfer. This ensures highly uniform development across every batch. Moreover, the use of precise, controlled airflow ensures that all consumed energy is utilized with maximum efficiency, making this design the most gas-saving solution on the market.
Is the Silon ZR7 compatible with roast logging software?
Absolutely. The Silon ZR7 is designed for seamless data logging and is fully compatible with all popular industry software, allowing you to record, analyze, and refine your profiles with ease.
How crucial are safety features in a coffee roaster? what does the silon zr7 provide?
Safety is highly important and sadly overlooked. For us, protecting the roastmaster is a must. The Silon ZR7 is built with a sealed structure that prevents harmful emissions from escaping and contaminating your lungs over prolonged exposure. For emergency control, it includes a dedicated drum fire extinguisher lever and a manual safety crank for safe bean evacuation during power loss. we take the highest measures to ensure a safe and healthy working environment.
How are software updates handled?
The Silon ZR7 supports Wi-Fi updates. Our team continuously develops new improvements, ensuring your roaster benefits from the latest software features and control optimizations even years after purchase.
What kind of technical support is available?
Every Silon ZR7 is backed by Coffee-Tech Engineering’s three decades of expertise. You have access to our experienced technical team and a global network of authorized distributors for responsive after-sales service.
Is the Silon ZR7 built for long-term industrial use?
Yes. Built entirely from precision metalwork, the ZR7 is engineered for durability. Our commitment to Lasting Quality is proven by our first-generation machines which are still in operation today supported by long-term parts availability.
