Wood Pellet Production Facility in Greece

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Winter Orders Begin with Summer Preparation

A regional heating-fuel supplier needs stock available before customers begin drawing heavily from their stores. That commercial pattern makes production scheduling and dry storage important. It does not mean a pellet mill should operate at maximum output every hour of the year.

The project converts locally purchased wood residues into a consistent pellet format. Production scheduling allows for maintenance, changes in orders and released stock prepared ahead of the heating season.

A sawdust pellet production line must accommodate changing moisture. Sawdust from covered storage and chips from an exposed yard can put very different loads on the dryer. Receiving checks therefore belong alongside the fuel sales plan.

The intended customer is an established regional fuel distributor or wood processor with a usable industrial building and access to clean residues. This is a medium-scale manufacturing configuration, rather than a large export terminal or a small household workshop.

The procurement plan separates two accepted streams:

• Sawmill sawdust, kept free of treated timber, plastics and excessive soil.
• Clean wood chips from untreated solid wood, with controlled bark and oversized pieces.

Selecting the wood pellet machine follows those material conditions. In this project, one MZLH768 has the required working duty. Adding several smaller presses would increase drives, feeders and service points without an identified process benefit.

Before procurement, the pressing trial and drying calculation establish the guaranteed operating conditions. A capacity agreement must identify the wood, moisture, pellet diameter and acceptance method; a motor size by itself cannot define saleable output.

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Capacity and Site

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Follow the Dry Solids, Not the Truck Weight

The wood pellet production facility in Greece accepts wood at roughly 35–45% received moisture. The annual intake figures use a 40% average, with 10% moisture in the finished pellet and a 2% allowance for dry-solids loss. This gives a transparent connection between wet deliveries and finished production.

Ten thousand tonnes of pellets contain 9,000 tonnes of dry solids. Dividing by 98% retained solids and then by 60% solids in the wet wood gives approximately 15,306 tonnes of annual feed. Extra water arriving with a wet load must leave through drying; it does not become additional product.

Annual Wood Intake on the Design Moisture Basis

These streams need different preparation duties:

• Sawdust passes through inspection and screening, with coarse material directed to size reduction where necessary.
• Clean chips require controlled reduction before final pressing preparation; long splinters must not reach the metering feeder.
• The combined feed is dried to a consistent working condition, with each received lot still identifiable in the production record.

The dryer must handle the hourly water load as well as the yearly wood quantity. At the wetter end of the accepted range, the duty approaches the selected evaporation capacity. Loads above the range require a lower feed rate or separate preparation instead of a promise of unchanged throughput.

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Power and Heat Are Separate Design Duties

The complete wood pellet plant needs electrical power for grinding, pressing and handling, plus thermal input for water evaporation. Treating furnace heat as free because some biomass is available would understate the operating requirement and leave the fuel-handling system undefined.

Preliminary connected electrical load is about 540 kW. The main allocations are 250 kW for pressing, 132 kW for fine grinding, 55 kW for coarse preparation, 60 kW for extraction, 15 kW for dryer drives and 28 kW for other handling. The operating demand is established from simultaneous loads and the actual production schedule.

One dryer is selected for up to 3 T/H of water evaporation under the stated feed conditions. A biomass hot-air generator around 4 MW thermal input provides the corresponding heat duty and operating margin. Its fuel must be supplied and accounted for separately; pellet return fines alone cannot be assumed to meet the full requirement.

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Make the Fuel Specification Match the Buyer

This wood pellet production facility in Greece produces an 8 mm wood pellet for buyers whose storage, conveying and burners accept that format. Product acceptance includes moisture, ash, fines and heating value, with sampling agreed before routine deliveries.

• Commercial heat users with compatible pellet boilers and covered fuel storage.
• Industrial heat users purchasing wood pellets against a defined fuel specification.

Product Acceptance Targets

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Equipment Selected for the Actual Four-Tonne Duty

The wood pellet processing equipment package connects one press to correctly sized preparation and finishing equipment. Wet-flow conveyors are selected for their higher received mass, while the cooler and bagging system follow the finished-pellet duty. Giving every machine the same nominal tonnage would ignore the water removed along the route.

Main Equipment and Quantities

The MZLH768 uses a 250 kW main motor and is selected for a 4 T/H duty on qualified prepared wood. Its normal biomass capacity range depends on the material and pressing conditions; the top of that range is not guaranteed for every feedstock. The cooler, screen and transfer route should handle at least the agreed finished rate without becoming restrictions.

One 132 kW hammer mill provides fine preparation, with a 55 kW chipper for oversized clean wood. Sawdust bypasses unnecessary chipping. This arrangement assigns a specific job to each machine instead of processing every particle through every available motor.

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Fit the Process into the Existing Workshop

The 4,000 m² site includes 1,700 m² of existing covered building space. The budget assumes that the structure is suitable for adaptation after assessment. A new multi-storey production tower or a new industrial estate is not hidden inside the same project total.

• Receiving and covered raw stock: 650 m², with identifiable lots and a loader route kept away from finished bags.
• Preparation and drying interfaces: 400 m², with maintenance access and thermal equipment positioned according to the site fire assessment.
• Pressing, cooling and packing: 350 m²; finished stock: 250 m²; office and staff facilities: 50 m².

These allocations total 1,700 m² and include working aisles. The remaining 2,300 m² serves vehicle movement, utilities and necessary separation. Finished storage is a dispatch buffer, not a full season’s stock; larger seasonal inventory needs a separate storage plan. Fourteen staff cover two shifts and day support, with five operating positions per shift and four shared support roles.

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The wood pellet production facility in Greece Process

Preparation, drying, pressing and cooling operate as one controlled route. The objective is four tonnes of released pellets per net production hour under the acceptance conditions. Material sent back for reprocessing remains within the balance and cannot be counted as fresh output.

1. Receive Clean Wood

• Inspect delivered wood for moisture and contaminants before unloading into the accepted-stock area. Quarantined loads remain identifiable until a decision is made.
• Screen oversized debris and remove ferrous contamination using suitable magnets. Treated or coated wood is excluded through procurement and inspection; a magnet cannot make it suitable.
• Meter wood into preparation at a controlled rate. Surges in wet feed can exceed the dryer’s water-removal duty even when the daily average tonnage appears acceptable.

2. Prepare the Particle Size

• The chipper handles large clean pieces, while the fine grinder prepares dried chips and oversized particles. A 4–6 mm hammer-mill screen provides a starting point for the trial, not a guarantee that every particle has that dimension.
• Enclosed transfers and local extraction keep the prepared material within the process. Access covers allow planned cleaning and maintenance with the equipment isolated, rather than requiring operators to clear live machinery.

3. Remove Water Mechanically

• One rotary dryer receives the metered wet wood. The controller coordinates material feed and hot-air input, while operators check discharge moisture and exhaust condition.
• The biomass hot-air system and exhaust treatment are selected together. Hot-particle control, temperature monitoring and suitable emergency actions form part of the thermal installation.
• Dryer residence time follows the equipment design, particle size and moisture-removal duty. Discharge checks confirm whether the prepared wood has reached the pressing condition.
• Prepared wood targets roughly 10–14% moisture before pressing. The trial establishes a narrower working setting for the chosen wood blend, allowing for moisture change during subsequent handling and forming.

4. Feed One Ring-Die Press

• A metered feeder supplies one wood pellet extruder machine, configured here as the MZLH768 ring-die press with an 8 mm die. The feeder follows the press load and the buffer level rather than allowing intermittent slugs of material into the chamber.
• Die compression is selected from the material test, with roller adjustment following the equipment instructions. A setting used for straw or a different wood is not automatically suitable for this recipe.
• Natural wood binding can support pellet formation without a routine binder addition, but acceptable strength must be demonstrated. Any additive changes the product declaration and requires buyer approval and process review.

5. Cool and Screen

• A dedicated counterflow cooler removes heat before packing. The working discharge target is within about 5°C of ambient, with moisture and handling strength checked before stock release.
• A screen separates fines for controlled return. Return flow is limited and recorded; repeatedly circulating unsuitable product can conceal a process problem and overload the upstream equipment.

6. Pack for the Receiving System

• Bulk-bag packing is the main dispatch route for the commercial fuel market. A smaller-bag format can be scheduled through the specified filling arrangement, with bag handling included in the capacity calculation.
• Store released bags off damp floors and protect them from rain during loading. A good pellet can lose its handling quality after production if the dispatch route allows moisture ingress or excessive mechanical breakage.

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Protect the Product and the Working Area

Environmental and fire design for the wood pellet production facility in Greece follows the actual site, materials and local approval requirements. The equipment package should identify collection points and interfaces clearly enough for the local design team to complete that assessment.

• Grinding and transfer dust: enclosed handling, suitable extraction and inspection access at collection points.
• Dryer exhaust: separation and treatment matched to moisture, temperature and particle loading, with hot-particle protection.
• Pressing and cooling dust: collection arranged so that fines do not accumulate around motors and bearings.
• Combustible material: housekeeping, ignition-source control and assessed protection for dust-handling equipment.

Routine water use is modest because the wood route is mechanically dried rather than washed. Separate provisions are still needed for:

• Staff facilities and ordinary housekeeping, with approximately 2 m³/day allowed for planning.
• Domestic wastewater handled through the approved industrial-site connection or treatment route.
• Fire-water availability, drainage and containment as established by the local site assessment.

The services review covers drainage, emission control, utility connections and local approval requirements. Suitable arrangements are established from the site design and checked during commissioning.

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Agree on Acceptance Before Equipment Delivery

For a wood pellet production facility in Greece, the acceptance run should use the agreed wood blend at representative moisture. Measure finished output after screening, record return fines and include the drying section in the run. A brief test using purchased dry powder would not demonstrate the intended wet-wood duty.

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What Operators Need to Record

A production record connects changes in raw material to the response of the line. Three groups of readings are especially useful:

• Incoming and prepared-feed moisture, with the supplier lot and sampling time.
• Press current, feeder setting, interruptions and the quantity of screened return fines.
• Cooler discharge condition, packed mass and the product lot released for dispatch.

If pellet quality changes, inspect the whole route before changing the die. The same visible symptom can have more than one cause: weak pellets can follow inconsistent moisture, poor preparation or unsuitable pressing settings.

Operators should compare those records with a retained sample from the accepted run. That gives them a reference condition for the actual wood and machinery rather than a general setting taken from another plant.

The handover also needs routine maintenance intervals, safe access arrangements and identified wear parts. A single-press line has no duplicate production train, so planned die and roller service must be included in the annual operating schedule.

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Capital Scope for an Existing Greek Industrial Site

Equipment budget for the wood pellet production facility in Greece is USD 285,000. Total project budget is USD 465,000. The total covers the process package, freight, installation, foundations, workshop adaptation, electrical distribution, thermal connections, dust and fire measures, commissioning and contingency.

The wood pellet plant cost is based on three defined conditions:

• An existing usable industrial building and yard; land purchase and a new building complex are excluded.
• One complete 4 T/H pressing route, including mechanical drying, counterflow cooling and packing.
• A defined equipment-import and local-installation scope, with recoverable VAT, finance charges and operating inventory excluded.

This wood pellet production facility in Greece is sized around a 10,000-tonne annual production plan rather than an assumed continuous operating year. Two eight-hour shifts over 250 days provide 4,000 scheduled hours; 2,500 net hours provide the stated production quantity.

• The remaining scheduled time accommodates maintenance, changeovers, breaks and demand-related scheduling. It is not silently counted again as extra production.
• Capacity expansion should follow confirmed wood supply and sales, with the drying duty and storage plan reviewed at the same time. Buying another press alone does not double a constrained wet-wood route.

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Bring the Wood Sample and the Delivery Brief

A wood pellet production facility in Greece is easier to specify when the fuel buyer’s requirements are known. Pellet diameter, moisture, ash and packing format determine what the production line must deliver, while the incoming wood determines how much preparation and heat it needs.

A useful enquiry includes:

• Representative sawdust and chip samples, with seasonal moisture records and the expected proportion of each material.
• The customer’s fuel specification, annual orders and preferred delivery format.
• Building dimensions, site access, available electrical supply and space for the thermal section.

RICHI can use that information to prepare a coordinated equipment schedule, layout and acceptance basis. The proposal should explain the duty of every major machine and the boundary between machinery supply and local installation work.

Ask for the capacity calculation at the wettest accepted feed condition as well as the normal one. This shows whether the drying section can sustain the target output through material variation.

Also check service access: the owner needs room to change a die, remove grinder screens and inspect dryer connections after the plant is installed. Those tasks affect usable layout, even though they do not appear in the headline hourly capacity.

Send your material and site brief to RICHI for a wood pellet production facility in Greece built around one suitable press, a matched drying system and a realistic dispatch plan.