Pellet production line LDG-4000 KOMBI PRO

Pellet production line LDG-4000 KOMBI PRO – a modern technological complex designed for the production of fuel pellets, pelleted feed, and biomass granulates with a capacity of up to 750 kg/h, depending on the type of processed raw material.

Thanks to the use of the more efficient PRIME-400 PRO pellet mill with a power of 45 kW, the line ensures even higher capacity, process stability, and the ability to work with a wide range of materials. The unit has been designed for enterprises that expect high efficiency, reliability, and low operating costs.

Pellet production line LDG-4000 KOMBI PRO is designed for the production of fuel pellets, pelleted feed, and biomass granulates. It performs excellently in farms, sawmills, woodworking plants, companies involved in biomass recycling, and enterprises producing solid fuels.

The entire granulation process includes raw material preparation, its feeding to the pellet mill, granule formation, cooling, and cleaning of the finished product. All elements of the line work together, ensuring stable, continuous, and efficient pellet production.

High operating efficiency is ensured by the cooperation of key components: screw feeder, moistening system, PRIME-400 PRO pellet mill, calibrator-cooler, aspiration system, and control panel. A line configured in this way allows high quality of the finished product to be obtained while maintaining repeatable production parameters.

Video: Granulation line "LDG-3000 KOMBI PRO" for pellet production from various types of biomass:

The heart of the line is the PRIME-400 PRO pellet mill

The most important element of the entire set is the PRIME-400 PRO pellet mill. After many hours of testing and numerous design modernizations, the unit achieves a capacity of up to 750 kg of pellets per hour. The use of a 45 kW motor, four working rollers with a diameter of 178 mm, and a die with a diameter of 400 mm makes it possible to obtain very high pressing pressure and stable operation even with demanding raw materials.

As standard, the pellet mill is equipped with one die, the hole diameter of which is selected by the customer. Dies intended for the production of pellets with a diameter of 6 mm or 8 mm are available. The thickness of the working channels is selected individually to the type of processed material.

Thanks to the high pressing force and four movable rollers, PRIME-400 PRO enables granulation of both softwood and hardwood sawdust. In addition to wood biomass, the unit also handles the granulation of sunflower husk, straw, and many other plant materials very well. In the case of feed production, it is sufficient to use an appropriate die adapted to the given type of raw material.

Construction and components

1. Screw feeder PS-200 PRO (1.5 kW, 1 m³) – is responsible for the even feeding of raw material to the pellet mill, ensuring the stability of the granulation process.
2. LDG injection moistening system with stand – enables precise dosing of moisture, improving pressing conditions and the quality of the finished pellet.
3. PRIME-400 PRO pellet mill (45 kW) – equipped with a Ø400 mm die, four working rollers, and two cutting knives. Ensures capacity of up to 750 kg/h of pellets.
4. Pellet calibrator-cooler KC-300 (0.37 kW) – is responsible for cooling the granulate, separating dust, and stabilizing the finished product.
5. SO-2 extraction system (1.5 kW) – removes dust generated during the production process, improving the cleanliness of the workstation and the safety of the operator.
6. Line control panel – enables convenient control of all subassemblies and monitoring of the operating parameters of the entire set.
7. Frequency inverter – ensures smooth motor start-up, adjustment of rotational speed, overload protection, and optimization of energy consumption.

Output of the Pellet production line LDG-4000 KOMBI PRO

The line has been designed for efficient production of fuel pellets and biomass granulates. The achieved output depends on the type of raw material, its moisture content, degree of grinding, and the die used.

• pine sawdust - up to 750 kg/h
• straw (fine fraction) - up to 700 kg/h
• sunflower husk - up to 700 kg/h

The most important condition for achieving maximum output is appropriate preparation of the raw material, above all its proper fraction and moisture level.

What raw material can be used to produce pellets?

• softwood and hardwood sawdust
• wood shavings
• sunflower husk
• straw
• hay
• grain waste
• branches after prior shredding
• plant biomass

What raw material can be used to produce feed granulate?

• cereals
• feed mixtures
• meal
• hay
• alfalfa
• maize
• other feed components after appropriate preparation

Advantages of the LDG-4000 KOMBI PRO line

• Output up to 750 kg/h - designed for intensive production of biomass pellets.
• PRIME-400 PRO pellet mill - equipped with a 45 kW motor, Ø400 mm die, and four working rollers ensuring a high degree of material densification.
• Wide range of applications - possibility of producing pellets from softwood and hardwood sawdust, straw, sunflower husk, and many other raw materials.
• Complete technological process - feeding, moistening, granulation, cooling, and dedusting take place within one set.
• Stable operation - all elements of the line have been selected to achieve maximum output and repeatable pellet quality.
• Low operating costs - efficient components and an optimized production process make it possible to reduce energy consumption.
• Expandability - the line can be integrated with additional equipment for preparation and packaging of the finished product.

Technical drawing:

Why is the line equipped with a 45 kW frequency inverter?

The standard equipment of the PRIME-400 PRO pellet mill includes a 45 kW frequency inverter, which significantly increases the safety, durability, and working comfort of the entire line.

Smooth motor start-up

• limits the starting current
• protects the electrical installation and the motor against overload
• reduces mechanical loads on the gearbox and drive elements

Adjustment of operating speed

• makes it possible to adapt operating parameters to the type of raw material
• facilitates start-up under heavy load
• makes it possible to optimize the efficiency of the granulation process

Protection of the unit

• monitors motor load
• protects the machine against overload
• works with safety systems and line automation

Energy savings

• reduces energy consumption during operation under partial load
• extends the service life of the motor and drive system
• lowers the operating costs of the entire line

The 45 kW frequency inverter is an important element of the equipment of the LDG-4000 KOMBI PRO line, increasing operational safety and making it possible to achieve maximum output of the granulation process.

Technical support and training

We offer comprehensive support including selection of the appropriate line configuration, installation, commissioning, and operator training (installation and commissioning are an additionally paid service). Thanks to this, the user can start production faster and make full use of the capabilities of the entire set.