Frequently asked questions

The right choice depends on layout constraints, acceptable bean breakage, energy consumption targets, dust management strategy and future expansion plans. Mechanical systems are typically more energy efficient and gentle, while pneumatic systems offer greater routing flexibility in constrained buildings.

Breakage is controlled through conveying speed, routing design, drop heights and transfer points. Gentle routing, controlled velocities and minimizing impacts allow breakage to stay very low - especially important for roasted coffee and high-quality whole bean products.

Yes, if designed correctly from the start. Conveying routes, pickup points and discharge points can be planned so new machines, silos or packaging lines can be connected later without costly redesigns or production interruptions.

Typical unloading ranges from 15–30 minutes depending on bag size and hopper/conveying configuration. Faster solutions are possible with adapted sizing.

Yes. Routing, conveying capacity and interfaces can be prepared so future silos, cleaning systems or roasters can be integrated without major redesign.

Dust is captured directly at the intake hopper using integrated aspiration and filtration systems, keeping intake areas clean and safe for operators.

The choice depends on daily volume, labour availability, safety targets and long-term growth. Jute bag intake offers flexibility and low initial investment, while big bag systems significantly reduce manual handling and increase throughput. Many roasteries adopt hybrid stations that allow both formats, enabling gradual transition as volumes grow.

Both approaches work. Floor pits minimise lifting and handling, offering excellent ergonomics and dust capture. Elevated hoppers are used when excavation is not possible and can still deliver clean, safe and efficient operation. The choice depends on building constraints, layout and budget.

Automation should follow operational value, not ambition alone. Many roasteries begin with simple manual systems while preparing mechanical and control infrastructure for future upgrades. This phased approach limits upfront cost while ensuring smooth evolution toward higher throughput, traceability and automation.

Silo capacity depends on roasting volume, number of coffees handled, delivery frequency and how much production buffering is required between intake, roasting and downstream operations.

Yes. With integrated weighing and automation, silos can portion and combine coffees automatically, allowing repeatable blend preparation and reliable dosing to roasters, grinders or packaging lines.

When engineered correctly from the start, additional cells, new conveying routes or downstream equipment can be integrated later without major reconstruction or production interruption.

Properly engineered systems maintain extremely low breakage rates compared to many alternatives.

Yes. Intake and discharge points or routing extensions can be integrated as production grows.

Bucket elevators typically consume significantly less energy, especially at higher capacities.

No. Complete bucket discharge and enclosed design simplify cleaning procedures.

Yes, with proper routing and discharge planning to minimize cross-contamination.

Breakage rates remain very low and comparable to bucket elevators when systems are properly engineered.

Yes. Intake, discharge, or routing extensions can be added as production grows.

No. Continuous disc movement sweeps residue while access points allow periodic cleaning when required.

Yes, with appropriate routing or cleaning procedures between production runs.

Mechanical conveying typically consumes significantly less energy than pneumatic systems, depending on layout and conveying distance.

When properly engineered, blowing systems maintain acceptable bean integrity for green coffee conveying, though mechanical solutions remain gentler for fragile products.

Yes. Piping routes allow relatively simple addition of intake and discharge points as production layouts evolve.

Compared with mechanical conveying, pneumatic systems typically consume more energy but compensate through routing flexibility and lower initial investment.

Capacity depends on production rhythm and storage duration. When ceiling height and floor strength allow it, increasing height is usually the most economical expansion method.

Yes. Multiple intake and discharge routes can be integrated, allowing coffee to be distributed downstream according to production needs.

Yes. Additional layers, routing paths, or downstream equipment can be integrated later when expansion is planned from the beginning.

The right combination depends on impurity profile, production capacity and quality targets. Wind sifters remove light material and dust, sieves with aspiration systems remove oversized and undersized contaminants, and optical sorters remove visual and material defects. Most installations combine technologies sequentially to match real operational objectives.

Both. Mechanical cleaning protects equipment and stabilizes roasting, while optical sorting improves cup quality and visual consistency. In-house cleaning allows tighter control over reject levels, which can increase usable yield and enhance final product quality.

Yes. Cleaning stations are typically installed between intake and storage or before roasting. Integration requires correct feeding, reject handling and dust treatment planning, but existing plants can be upgraded without fully redesigning production.

Yes. Alternative sieve decks can be installed to match impurity profiles and specific cleaning objectives.

No. The sieve removes size-based impurities. Density-based stone removal requires a destoner installed downstream.

In moderate dust environments, the integrated aspiration is often sufficient. In very dusty conditions, a dedicated wind sifter installed upstream can further improve air cleanliness and reduce dust load.

Yes. Alternative sieve decks can be installed to match impurity profiles and specific cleaning objectives.

No. The sieve removes size-based impurities. Density-based stone removal requires a destoner installed downstream.

In moderate dust environments, the integrated aspiration is often sufficient. In very dusty conditions, a dedicated wind sifter installed upstream can further improve air cleanliness and reduce dust load.

No. Mechanical cleaning removes dust and size-based impurities. Optical sorting removes visual and material defects.

Yes. Sensitivity can be tuned to match quality targets and acceptable yield.

Yes. It can be added upstream or downstream depending on layout and process flow.

Yes. Local extraction removes airborne dust. A Wind Sifter removes dust directly from the coffee stream before it spreads.

No. A wind sifter separates by density, not by size.

Yes. Removing dust upstream improves inspection stability and reduces internal cleaning.

Yes. It is often used for smaller roasted buffer systems or structured single-origin storage.

Yes. Additional cells can be added as storage needs increase.

Yes. When equipped with load cells or automated discharge, portioning accuracy is controlled and measurable.

Yes. It can be engineered with dust extraction and optional load cells for controlled dosing, although individual weighing per cell may increase system complexity compared to centralized hopper architectures.

When building geometry prevents centralized tower installation or when storage must follow wall lines or L-shaped layouts.

Yes. This is one of its most common applications, synchronizing batch roasting with continuous grinding or packaging operations.