1–2 T/H Biomass Pellet Plant in Austria

RICHI MACHINERY

The Sawmill Already Did Half the Preparation Work

The customer had operated a Styria sawmill for two decades. Rather than buying outside biomass, he wanted to convert a controlled share of his own sawdust, shavings and clean wood fines into heating pellets.

The existing 2,227 m² property already had power, water and material-handling access. The limiting factor was not land; it was keeping the pellet line simple enough to fit the sawmill’s actual dry-residue volume.

The engineering question became whether one biomass pellet press could cover the selected residue stream without adding duplicate crushing equipment.

Feedstock sampling showed that the sawmill could deliver a relatively uniform fine fraction, normally around 12–15% moisture after storage and air conditioning. Oversize material remained in the sawmill’s own wood-processing route.

The final layout uses one MZLH520, 132 kW, with approximately 1.5–2.0 T/H capacity. Seasonal drying is retained for wetter winter lots, but it is not treated as a year-round 8,000-ton drying requirement.

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8,000 Tons of Residue Availability Does Not Equal Pellet Throughput

The client’s sawmill produces several residue streams, but only the fraction that meets the pellet line’s particle-size and contamination requirements is routed into the pellet workshop. The customer records moisture and particle condition by residue stream instead of mixing everything together at the yard. Consistent fines can move directly toward screening, while wetter or coarser material stays in the sawmill recovery system until it is suitable.

The wider sawmill may generate about 8,000 T/Y of biomass residues, but bark, oversize ends and wetter material are not automatically counted as pellet-line input. This separation keeps the mass balance realistic. This distinction also prevents a common planning mistake: using the total amount of bark, offcuts and sawmill waste generated by the company as if all of it were pellet-ready feedstock. Only the selected fraction belongs in the pellet-line throughput calculation.

Approximately 4,500 T/Y of selected feedstock supports about 4,000 T/Y of finished pellets after moisture adjustment, screening and normal process losses.

• Moisture is removed mainly from wetter seasonal lots rather than from the full residue volume
• Oversize and unsuitable residues remain in the sawmill fuel or recovery system instead of being counted as pellet loss

The client also uses a small share of self-produced pellets and clean wood waste as furnace fuel during wetter periods.

RICHI MACHINERY

Why One MZLH520 Is Enough for the Current Residue Stream

Most 1–2 T/H biomass pellet production lines are discussed only in terms of press count. Here, the processed annual tonnage is modest, so one wood pellet mill is the better fit. The decision also reduces spare-parts complexity. One model means fewer ring dies, rollers and bearings to stock, but it increases the importance of preventive maintenance and a realistic buffer of prepared material before shutdowns.

The reasons:

• The sawmill supplies a relatively consistent fine wood fraction
• Oversize wood is handled in existing sawmill equipment instead of duplicated in the pellet workshop
• One MZLH520 provides about 1.5–2.0 T/H with a 132 kW main motor
• One press simplifies die, roller and bearing inventory
• Capacity remains aligned with roughly 4,000 T/Y of finished pellets

The trade-off: When the single press is stopped, pelleting stops. The customer therefore schedules preventive work outside the normal production window and keeps critical wear parts on site. Production planning therefore includes scheduled die inspection, lubrication and screen checks before peak winter demand. The project trades redundancy for simplicity, so maintenance discipline is part of the business model rather than an afterthought.

This 1–2 T/H biomass pellet plant in Austria is a sawmill-integrated production unit, not a stand-alone factory trying to process every residue generated on the property.

RICHI MACHINERY

Seasonal Drying Supports the Single-Press Layout

The client bought the wheel loader locally in Austria – cheaper than importing, and local service is available.

Shipping: Two 40-foot containers. Departed Qingdao September 15, 2023. Arrived Port of Koper, Slovenia on October 28, 2023 (closest port to Styria). Sea freight: $4,200 USD. Rail freight from Koper to Graz (about 300km) added $1,800 USD and 3 days. Inland trucking to the site added $500 USD.

RICHI MACHINERY

2,227 m² Is Enough Because the Sawmill Shares Infrastructure

The client’s site was 2,227m² with existing buildings. Raw-material handling stays close to the sawmill side of the property, while finished pellets are kept dry and separated from incoming residues. The limited footprint works because the plant does not need a large green-wood yard or a full-time drying complex.

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The Pellet Workshop Starts After Sawmill Preprocessing

The process is intentionally short because the sawmill absorbs part of the preparation duty before material reaches the pellet workshop. Buffer storage between screening/drying and pelleting helps decouple seasonal moisture correction from the press. The operator can prepare a stable dry feedstock batch before starting the MZLH520 instead of changing dryer settings while the pellet mill is already running.

Step 1 – Screening
Selected fines are screened before storage. Oversize pieces return to the sawmill recovery route rather than being forced through the pellet line.

Step 2 – Seasonal drying
Only wetter lots enter the airflow dryer. Material already within the working range bypasses full thermal treatment.

The dryer exhaust passes through a cyclone separator and baghouse filter before the 15m stack.

Step 3 – Pelleting
Dried material is fed into the MZLH520 biomass fuel pellet machine. The single 132 kW press provides about 1.5–2.0 T/H, producing 6 mm or 8 mm pellets according to the customer order.

The pelleting process relies on natural wood lignin when moisture and particle size remain controlled. Routine chemical binders are not required for this clean-wood formulation.

Step 4 – Cooling, packing and storage
Fresh pellets are cooled before they enter retail or bulk packaging. Hot product is not treated as warehouse-ready.

RICHI MACHINERY

Dust and Dryer Exhaust Are Managed Separately

Austria applies strict air-quality and plant-permit requirements, but this page does not substitute generic national limits for the site permit. The project separates seasonal dryer exhaust from dry process dust and monitors each stream through the installed control system.

Dryer exhaust (15m stack):

• Particulates: <15 mg/m³ (Austrian limit: 20 mg/m³)
• CO: <100 mg/m³ (limit: 200 mg/m³)
• NOx: <80 mg/m³ (limit: 150 mg/m³)

Process dust (fugitive):

• Total fugitive dust: <0.5 t/yr
• Settles inside workshop or on client’s property

The client also has ash from the dryer furnace – about 5 t/yr. Ash is given to local farmers for use as fertilizer.

RICHI MACHINERY

Styria Sits Inside an Established Pellet Heating Market

Austria has a mature pellet-heating market and a large domestic pellet-production base. For this small Styria project, the decisive advantage is local integration with an existing sawmill rather than a national demand statistic. Current Austrian pellet production and heating demand show that the customer is operating inside a mature market, but that maturity also raises buyer expectations for consistent quality. A small local producer still needs reliable moisture, fines and durability control to compete with established suppliers. A small wood pellet plant in Austria still has to meet those buyer expectations even when its feedstock comes from one integrated sawmill.

• Over 200,000 pellet heating systems installed
• A well-established ENplus certification system
• Government subsidies for biomass heating (up to 30% of system cost)
• High consumer awareness of pellet quality

The client’s target customers are local distributors, household heating users and selected commercial buyers that can take regular small-volume deliveries.

• Regional pellet distributors serving Styria
• Local heating customers requiring bagged pellets
• Commercial heat users that can receive bulk deliveries

Any second press should follow additional dry-feedstock availability, storage capacity and confirmed sales rather than a simple nameplate expansion target.

RICHI MACHINERY

A Single Press Makes Maintenance Planning More Important

Commissioning reinforced three operating priorities. The plant team also learned that one machine makes process records more valuable. When amperage rises, they compare moisture, feeder rate and die condition before deciding that a mechanical part has failed. That habit reduces unnecessary intervention and improves uptime.

What proved effective:

• The single-mill configuration keeps operation simple when feedstock volume is controlled
• Preprocessed sawmill material prevents unnecessary duplication inside the pellet workshop
• Seasonal drying is more economical than full-year thermal treatment for this feedstock

What still requires discipline:

• Outlet moisture should be measured whenever the dryer is operating
• Bagging speed should match the actual share of retail sales
• Critical die and roller wear parts should be stocked because there is no parallel pellet press

RICHI MACHINERY

RICHI Scope Kept the Sawmill and Pellet Line Connected

For this 1–2 T/H biomass pellet plant in Austria, we delivered:

• Process design – Simplified single-mill layout.
• Equipment package – Screen, dryer, pellet mill, cyclone, baghouse, stack.
• Installation supervision – Our engineer spent 10 days in Styria.
• Operator training – Two days on die changes, gap adjustments, and Austrian compliance requirements.
• Spare parts kit – One spare die, bearings, belts, and filter bags.

RICHI MACHINERY

When One Pellet Mill Is the Better Austrian Solution

If you are planning a sawdust pellet plant in Austria, one press can be the right answer when the owner controls residue quality, preprocessing and maintenance scheduling. This biomass pellet project shows why the annual residue balance matters more than a theoretical maximum. The same logic applies to other sawmill-integrated projects: count only the residue that can be supplied at the right moisture and particle size, then select the pellet mill. Starting from a desired machine size and working backward tends to overstate available feedstock.

• Match pellet capacity to selected residue. Only feedstock that meets the pellet specification belongs in the production balance.
• Use existing preprocessing where it already works. Duplicating size-reduction equipment adds cost without adding saleable tons.
• Keep drying selective. Seasonal moisture correction is different from designing the entire factory around green sawdust.
• Sell against verified quality. Heating customers may value certified pellets, but certification should not be assumed before testing and approval.
• Handle furnace ash through the approved site route. Do not assume every ash stream is automatically suitable for agricultural use.

The Styria project remains intentionally small because its economics depend on integrated sawmill residue, not speculative expansion.

Contact us for a site assessment or equipment quote. For a heating pellet plant in Austria, the useful starting data are annual dry-fines volume, seasonal moisture, existing sawmill equipment, building dimensions and sales format.