Pellet Machines

Our Machines for Wood and Biomass

Transforming biomass is a significant challenge today and in the future. Currently, biomass accounts for 15% of global primary energy consumption and is a crucial resource for humanity.

PELLET MILL


The pellet mill is vital in wood and biomass pellet production, predominantly used in large-scale commercial production. It boasts robustness, high power, and low consumption. The pelleting process occurs through a die in the main mill. OTARTECH’s presses are easy to operate, durable, reliable, and have very low maintenance costs.

HAMMER MILL


In the wood and biomass sector, the horizontal hammer mill is particularly effective. It is traditionally used to reduce particle size during grinding. OTARTECH’s hammer mills feature advanced technical characteristics, are directly connected to the main motor via an elastic coupling, offer a dual rotation direction, include a dynamically balanced motor, and are equipped with temperature sensors and safety interlock systems for side doors.

COUNTERFLOW COOLER


The counterflow cooler is the optimal choice for balancing costs and performance. Wood and biomass pellets can be uniformly cooled inside the cooling chamber through a rotating distributor. Cold air entering causes the pellets to rotate, facilitating gradual cooling from the bottom upwards. OTARTECH’s counterflow cooler includes advanced components like a condensate discharger driven by a motor-reducer at 21 RPM with a brake and limit switch, adjustable discharge speed via a handwheel on the front, a stainless steel rotary valve, reinforced walls, an inspection door made of durable glass, both a fixed and adjustable product distributor, two rotary sensors, and a pneumatic closing mechanism that activates when there is no power supply.

VIBRATING SIFER

Vibro sieves are highly compact and efficient in cleaning pellets, used to remove granular impurities and fine particles. The vibrating sieve by OTARTECH is designed to ensure optimal product distribution: at the inlet, the material is leveled across the entire surface of the sieve and uniformly distributed by an externally adjustable static distributor. The sieve’s mechanical functionality is supported by two vibrating motors located under the sieve body, facilitating access to counterweights for adjustments or maintenance.

ROTARY SCREENER


The rotary screener consists of a screening grid that rotates within a cylindrical chamber. During operation, the material to be screened is introduced centrally on the sieve, and centrifugal force pushes it outward. This process helps separate finer particles from coarser ones, which continue to move across the sieve surface. The sieve’s effectiveness is further enhanced by the stepped shape of the screening grid, optimizing the separation of different product granularities.

FILTER


The reverse flow bag filter is designed to separate particles in industrial systems. It consists of filter bags inside a housing. During operation, dusty air enters the system, and the particles are trapped by the bags while the clean air is expelled. Cleaning occurs through a reverse airflow, dislodging the accumulated particles that fall into a container. The filter’s efficiency is enhanced by the screw conveyor or mixing shaft extraction system. Additionally, a humidity control sensor constantly monitors the humidity, optimizing performance and preventing issues.