Unique biomass handling capabilities

Bruks Siwertell is the market leader in the biomass handling and processing sector. Siwertell ship unloaders have the unique ability to handle biomass safely in a totally enclosed system and our loading, conveying, stacking and reclaiming, truck unloading, chipping, milling, screening and wood-residue processing systems support every part of the biomass logistics chain, from its waste form to the pellet.

Biomass, the collective term for organic material used as fuel in power generation, is increasingly gaining ground in the renewable energy sector. It is derived from plant or animal material and is often generated from waste, either from wood or forest residues, food crops or food processing. Biomass can also be purely grown in the form of an energy crop, often destined for the biofuel sector.

Environmental regulations drive bioenergy boom

Throughout the world, many power plants are adapting to burning both coal and biomass to comply with stricter environmental regulations. Separate power-generation systems can be found on the same site: one burning coal, one burning biomass. In others, a single system burns either coal or biomass, or both at the same time, known as co-firing. In all cases these plants benefit from the flexibility of our Siwertell unloaders as they can handle both commodities in one machine, without adjustment.

Biomass in bulk has a lower calorific value than the same volume of coal, so efficient, highcapacity unloaders, loaders, conveyors and storage and reclaiming systems are needed to maintain power demands.

bioenergy industries

Multi-fuel unloaders securing supply chain

Two Siwertell multi-fuel screw-type unloaders serve Associated British Ports’ Immingham Renewable Fuels Terminal. The ST 790-D-type units are used for unloading imported biomass pellets to fuel the nearby Drax power station, which supplies between seven and eight percent of the UK’s electricity demand.

The Immingham Renewable Fuels Terminal (IRFT) is a multi-customer terminal designed to meet the increasing need for renewable fuels. At full capacity the terminal can handle about six million tonnes of biomass per annum. It may also be called on to handle coal.

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From palm kernels to wood chips

wood chips

Biomass can not only take the form of wood pellets, but also palm kernel shells from countries such as Indonesia and Malaysia. In southeast Asia, at the Tembusu Multi-Utilities Complex (TMUC) on Jurong Island in Singapore, a combination of energy production, desalination, and wastewater treatment is powered using coal, wood chips, and palm kernel shells. Two ST 640-M rail-mounted Siwertell unloaders have served TMUC since 2012, alternating between unloading coal and various biomass cargoes in a seamless and environmentally friendly way.


Maximizing safe material handling

Especially when contained, biomass comes with the inherent safety concerns of spontaneous combustion. Biomass-handling systems must be able to mitigate the risks associated with containment. They must also ensure minimal cargo degradation. This preserves the quality of the shipment and minimizes dust creation, therefore reducing fire and explosion risks.

Bruks Siwertell has decades of experience handling hazardous materials, which has been used to develop safety systems for biomass handling. These meet CE conformity regulations and the latest ATEX directive relating to the control of explosive atmospheres.

Bruks Siwertell offers the only totally enclosed ship unloaders that can safely be used for large-scale biomass handling.


Systems that offer broader benefits

All Siwertell ship unloaders, for biomass and other bulk materials, have small structural footprints and weigh less than alternative systems with comparable capacities. This results in reduced jetty construction or conversion costs. Also, their high through-ship unloading capacity means that jetty occupancy is minimized, while annual intake is maximized.

Investment costs can also be reduced as our ship unloaders, loaders and jetty conveyors handle biomass and other materials with equal efficiency and flexibility, ensuring that changing market conditions can be met.

Our truck unloading, storage, stacking and reclaiming, and conveying systems further add to outstanding biomass-handling performance. Ideally suited to conveying this material is our innovative air-supported conveyor range, which includes the Bruks Tubulator TM and The Belt Conveyor TM .


Making the most from wood waste

Decades of technological developments in the transfer, transport and processing of wood for the biofuel and bioenergy markets through to the pulp and paper and particle board industries, gives Bruks Siwertell unrivalled knowledge of biomass-based materials.

We pass this experience onto our customers in the form of market-leading wood-processing machinery and through-life services, which deliver excellent levels of operational performance, safety, efficiency and environmental protection.

wood residue processing

Truck dumpers with a difference

Our specially designed truck unloading solutions not only ensure fast, efficient truck unloads, but also prioritize environmental protection, minimizing dust emissions.

With around 75 installations worldwide, Bruks Siwertell’s truck dump tipping platforms are one of the fastest, most effective ways to discharge free-flowing materials, such as processed wood and other biomass from bulk trucks.

They deliver long-term, cost-effective operations and have been designed to reliably perform under very high-use conditions, offering an expected service life of two million tipping and lowering cycles, which exceeds 25 years of full-time operation.

truck unloading

Collecting valuable dust

Sawdust is a valuable by-product that was once considered waste; its collection also protects the environment.

Sawdust is a major contributor to biomass pellet production. We have a full range of technology that can handle, transport and process sawdust. Also, to make sure nothing is wasted, our dust collecting systems can be found in receiving hoppers, able to duct the dust away and bag it for use. They are also a feature at sawmills, collecting dust under the sawline as part of by-product handling and processing systems.

Storage and reclaiming: a specialist job

Storing and reclaiming organic biomass materials such as wood chips, bark or sawdust is a specialist task.

Our range of customized and automated stacker reclaimers have a worldwide reputation for delivering exceptional operational efficiency and biomass handling performance. Stacker reclaimers are a combination of technologies that pile and then retrieve dry bulk materials for onward conveying in a very efficient, controlled way. They also blend material, which is particularly important for organic commodities to reduce fiber losses from microbial action and heat build-up in the pile.

Bruks Siwertell delivers stacker reclaimers that form linear, semi-circular and fully circular piles in a range of sizes and capacities. Automated stacking and reclaiming systems deliver the greatest efficiencies.

storage & reclaiming