WBPM Flat-Die Wood & Biomass Pellet Machine

Turn prepared sawdust and woody biomass into fuel pellets. Proudly made in Lebanon.

The Mechaniqua WBPM Series compresses prepared wood and biomass through a flat die to produce cylindrical pellets for heating and biomass-fuel applications.

The roller-and-die system applies pressure to the material, forcing it through the die holes. A cutting mechanism trims the emerging pellets before discharge. Pellet quality depends on material preparation, moisture, die configuration and operating conditions.

Available in seven electric sizes, from 7.5 kW to 90 kW, the WBPM range serves small businesses, commercial pellet producers and larger biomass-processing operations.

Key Features

• Flat-die pelletizing system with serviceable die and roller components.
• Seven electric models, from 7.5 kW to 90 kW.
• 380V three-phase power, with star-delta or VFD configurations.
• Different pellet diameters, depending on the selected die and model.
• Selected diesel configurations, subject to model availability.
• Locally manufactured, with Mechaniqua support for servicing and spare parts.
• Options for integration with material preparation, feeding and downstream handling equipment.

How the Machine Works

Stage	Process
1. Material preparation	Wood or biomass is ground and conditioned to a suitable particle size and moisture content.
2. Feeding	Prepared material enters the pelletizing chamber at a controlled rate.
3. Compression	Rollers press the material through the flat die’s holes.
4. Cutting	The emerging pellets are cut to length.
5. Cooling and screening	Discharged pellets are cooled and screened as required before storage or packaging.

Cooling and screening are separate processing stages. Confirm the equipment included in your selected package.

Suitable Raw Materials

The WBPM is intended for clean, appropriately prepared woody biomass, including:

• Sawdust.
• Ground wood shavings.
• Ground planer shavings.
• Hammer-milled wood chips.
• Other suitable wood-processing residues.

Alternative biomass materials require assessment because their fibre structure, moisture and binding characteristics can differ significantly.

Branches, logs, oversized chips and long shavings require size reduction before pelletizing. Remove metal, stones and other foreign objects. Contact Mechaniqua before processing treated, painted, glued or contaminated wood.

Material Preparation

Consistent feedstock is essential for stable production and pellet quality.

Factor	Recommended preparation
Particle size	Material processed through a 3 mm hammer-mill screen is a useful starting point for wood-pellet trials.
Moisture	Approximately 10–15% on a wet basis is an initial operating range; adjust to the material and die.
Consistency	Maintain a reasonably uniform mixture without large chips or long fibres.
Cleanliness	Remove foreign objects before feeding.
Feed rate	Feed steadily within the motor’s permitted continuous load.

These are starting guidelines, not a guarantee for every wood species. Final settings should be established through trials using the customer’s material.

Grinding does not replace drying, and the pellet machine is not intended to act as a dryer.

Model Specifications

Model	Electric motor	Approximate production capacity*
WBPM200	7.5 kW	80–120 kg/h
WBPM250	15 kW	100–200 kg/h
WBPM300	22 kW	200–300 kg/h
WBPM350	30 kW	300–400 kg/h
WBPM450	45 kW¹	600–800 kg/h
WBPM550	55 kW	800–1,000 kg/h
WBPM800	90 kW	1,200–2,000 kg/h

Production capacities are approximate selection estimates. Actual output depends on material species, density, moisture, particle size, pellet diameter, die geometry, roller adjustment, feeding consistency and component condition.

Confirm the required production rate through material trials. A larger motor alone does not guarantee a proportional increase in output.

¹The WBPM450 configuration shown here uses a 45 kW motor. Confirm the supplied configuration in the technical quotation.

Pellet Diameter and Length

Pellet diameter	Typical application
6 mm	Heating appliances designed for 6 mm pellets
8 mm	Compatible boilers and commercial heating systems
10 or 12 mm	Selected industrial applications, subject to equipment compatibility

Pellet diameter is determined by the installed die. Available diameters depend on the model and material.

Pellet length is influenced by the cutting arrangement and pellet formation. Confirm the requirements of the receiving stove, boiler or industrial process before selecting a die.

Die and Roller System

The die and rollers work together to compress and form the pellets.

Component	Function
Flat die	Determines pellet diameter and provides resistance to compression.
Rollers	Apply pressure to feed material into the die holes.
Die working length	Influences compression resistance, motor load and pellet formation.
Roller adjustment	Helps establish suitable operating clearance and pressure.
Cutting mechanism	Trims the pellets as they emerge from the die.

Die geometry must suit the material and available power. Excessive compression resistance can increase current, temperature and blockage risk; insufficient resistance can result in weak pellets.

Die and roller material specifications, heat treatment and replacement-part compatibility are confirmed for the selected build.

Electric Drive Options

All listed electric models use a 380V three-phase supply.

Model	Star-delta	VFD
WBPM200	✓	✓
WBPM250	✓	✓
WBPM300	✓	✓
WBPM350	✓	✓
WBPM450	✓	✓
WBPM550	✓	✓
WBPM800	✓	✓

Choosing a Starting System

System	Characteristics
Star-Delta	Reduces initial starting current and starting torque. Requires a compatible motor and a machine condition that permits acceleration.
VFD — Variable-Frequency Drive	Provides controlled acceleration and adjustable operating settings, configured for the motor and pelletizing load.

A VFD does not increase the motor’s rated power or compensate for an undersized supply. Operate within the machine-speed range specified by Mechaniqua.

Electrical Supply and Installation

The following values are preliminary planning guidance for the star-delta configurations.

Cable examples assume copper conductors, PVC insulation, one ungrouped surface-clipped cable, approximately 30°C ambient temperature and a cable route up to approximately 25 metres.

Model	Motor	Estimated full-load line current*	Preliminary supply breaker²	Example supply cable³
WBPM200	7.5 kW	Approximately 15 A	25 A	4G4 mm²
WBPM250	15 kW	Approximately 28 A	40 A	4G10 mm²
WBPM300	22 kW	Approximately 40 A	63 A	4G16 mm²
WBPM350	30 kW	Approximately 54 A	80 A	4G25 mm²
WBPM450	45 kW	Approximately 82 A	100 A	4G35 mm²
WBPM550	55 kW	Approximately 99 A	125 A	4G50 mm²
WBPM800	90 kW	Approximately 165 A	200 A	4G95 mm²

Current figures are estimates, not measured ratings for the supplied motors. Actual values depend on motor efficiency, power factor, supply voltage and load. The installed nameplate takes priority.

²Supply-breaker ratings are preliminary candidates, not motor overload settings. Final selection must account for starting performance, trip characteristics, fault-breaking capacity and coordination with cable and motor protection.

³4G means three phase conductors plus protective earth. Add a neutral where required by the supplied control panel. These examples concern the incoming machine supply, not the motor leads from the star-delta starter.

A qualified electrician must verify the final installation. Longer runs, enclosed installation, grouped cables, higher temperatures and voltage-drop requirements may require larger conductors.

VFD Supply and Motor Protection

For VFD configurations, final cable and protection selection must follow the actual drive’s rated input current and manufacturer requirements. The table above must not be used as a universal VFD installation specification.

Motor overload protection must match the motor and starter arrangement. Maintain proper earthing, isolation and ventilation.

If the machine repeatedly exceeds its permitted continuous current, reduce feeding and investigate material preparation, die condition, roller adjustment and mechanical resistance.

Generator and Solar Operation

Compatibility must be assessed using:

• Supply voltage and phases.
• Continuous generator or inverter capacity.
• Motor-starting capability.
• Other equipment operating simultaneously.
• The selected starting system.

A complete pellet installation may also power a hammer mill, feeder, fans and cooling equipment. These loads must be included when sizing the supply.

Provide Mechaniqua with the generator or solar-system specifications before ordering.

Diesel Configurations

Selected smaller models can be configured with electric-start diesel engines.

Model	Diesel engine option*
WBPM200	15 hp
WBPM250	22 hp
WBPM300	32 hp

Availability, transmission arrangement and achievable production capacity must be confirmed in the quotation. Electric-model output figures should not automatically be applied to diesel versions.

Combustion engines must operate outdoors, away from enclosed working areas and building air intakes.

Optional Equipment and Spare Parts

Depending on the selected configuration, Mechaniqua can discuss:

• Replacement dies.
• Replacement rollers and roller assemblies.
• Alternative pellet-diameter dies.
• Controlled feeding screw conveyors.
• WHM or WCHM material-preparation machines.
• Drying equipment.
• Pellet cooling and screening equipment.
• Integration into a complete biomass-processing installation.

Availability and included equipment are confirmed in the quotation.

Operation and Maintenance

• Prepare material to a consistent particle size and moisture content.
• Follow the supplied startup and die-conditioning procedure.
• Feed progressively while monitoring motor load.
• Maintain roller adjustment according to the machine instructions.
• Inspect the die, rollers, bearings and transmission regularly.
• Follow the specified lubrication schedule.
• Cool pellets appropriately before bagging or storage.
• Follow the shutdown procedure to avoid material hardening inside the die.
• Stop, isolate and wait for all movement to cease before cleaning or servicing.

Select Your WBPM

Contact Mechaniqua with:

• Material type and wood species.
• Particle size and moisture content.
• Required pellet diameter.
• Target production capacity and operating hours.
• Available voltage, phases and electrical service capacity.
• Generator or solar-system details, where applicable.
• Existing preparation, feeding and cooling equipment.

Machine dimensions, weight, die specifications, roller arrangement, operating speed and included accessories are confirmed in the technical quotation for the selected configuration.

Mechaniqua — Dhour Choueir, Lebanon
Phone / WhatsApp: +961 71 612071
Email: mechaniqua@gmail.com