Screw reclaimers

Reclaiming solutions for biomass, SRF and other solid materials

Automated reclaiming and consistent material flow from every storage type

TYRANNOSAURUS® screw reclaimers handle biomass fuels, SRF, RDF, sludge and other solid materials from silos, A-frame storages and open piles. Typical applications include heat and power plants, pulp and paper mills, cement plants, recycling and waste management, and chemical production plants.

Uninterrupted material flow from storage to the next process stage is critical to your operation. An underperforming discharger often causes problems downstream, such as inconsistent feed, process instability and unplanned downtime. TYRANNOSAURUS® screw reclaimers are built around BMH’s intelligent storage and conveying solutions, forming a solid basis for any material handling system.

TYRANNOSAURUS® reclaimers collect material from every storage layer and homogenise quality and moisture as they discharge, supported by BMH’s constant torque application and frequency converter control that adjust the reclaimer to changing process demand.

BMH screw reclaimers adapt to your process in a range of situations. As part of a new plant, we can deliver a complete storage and reclaiming solution, from the silo structure and foundation interfaces to the reclaimer itself. TYRANNOSAURUS® screw reclaimers can also be installed in existing storage solutions to replace other dischargers. We also provide long-term service that keeps your current screw reclaimer running through relinings and screw refurbishments.

TYRANNOSAURUS® Screw reclaimers: Engineered for optimal material flow and long service life

Rotating reclaimers

Traversing reclaimers

Cantilever rotating screw reclaimers – TYRANNOSAURUS® LPE Serie

The TYRANNOSAURUS® LPE series is designed for automatic discharging from round silos and open piles. LPE is the most flexible reclaimer type in the TYRANNOSAURUS® family, adjusting to the characteristics of different solid bulk materials such as biomass fuels, pellets and SRF. Installed at the centre of a round silo or open pile, LPE reclaimers collect material from every storage layer, homogenising quality and moisture before it leaves the storage.

Every LPE reclaimer is custom-designed to the specific silo, material and capacity. The ten models in the LPE series (LPE10 to LPE60) cover silo diameters from 3 to 30 metres, volumes from 30 to 13,000 m³ and capacities from 10 to 1,200 m³/h. BMH has delivered over 400 rotating screw reclaimers worldwide since 1978.

Design highlights & performance of the LPE Series

Model Silo Ø (m) Height H (m) Capacity* Weight
LPE10 3–4.5 1.6–1.9 60 m³/h 2 500 kg
LPE20 4.5–6.5 2.2–2.4 250 m³/h 6 000 kg
LPE25 5–7 2.5–2.7 300 m³/h 8 000 kg
LPE30 7–14 2.5–2.7 500 m³/h 12 500 kg
LPE35 12–15 2.5–2.7 600 m³/h 14 500 kg
LPE40 12–17 2.8–3.0 600 m³/h 20 500 kg
LPE45 15–20 2.8–3.0 500 m³/h 22 000 kg
LPE50 17–25 3.2–3.4 700 m³/h 28 000 kg
LPE55 24–27 3.2–3.4 600 m³/h 33 000 kg
LPE60 24–30 3.2–3.4 500 m³/h 36 000 kg

Capacity range across models: 10–1 200 m³/h  •  Designed for silos from 30 up to 13 000 m³ (largest LPE delivery above 60 000 m³)

*Indicative values based on typical capacities; actual values are always calculated case by case. Maximum silo volume depends on the material stored.

Conical bottom silo reclaimers – TYRANNOSAURUS® LPC serie

The TYRANNOSAURUS® LPC Series is designed for automatic discharging from conical bottom silos. LPC is a 100% electric, cost-effective alternative to LPE, built on a philosophy of Low Lifecycle Cost for materials that do not require heavy-duty discharge capabilities but still need mechanical assistance in unloading. Installed at the centre of the conical silo bottom, LPC works together with a metering screw that controls the discharge capacity, eliminating ratholing and bridging to keep pellets, wood shavings, feed, powders, grains and other bulk materials flowing consistently.

Every LPC reclaimer is custom-designed to the specific silo, material and capacity. The four models in the LPC series (LPC10 to LPC25) cover silo diameters from 3 to 11 metres and capacities up to 500 m³/h.

Design highlights & performance of the LPC Series

Model Silo diameter­ Ø1 (m) Height ­approx. (m) Silo ­bottom angle Capacity* Weight ­approx. Ø2
LPC10 3–5.5 1.6–2.1 30° / 45° 0–140 m³/h 2 000 kg 600 mm
LPC15 3–8 4.0 30° / 45° 0–140 m³/h 2 600 kg 600 mm
LPC20 3–9 4.0 30° / 45° 0–350 m³/h 3 300 kg 950 mm
LPC25 3–11 4.0 30° / 45° 0–350 m³/h 4 000 kg 950 mm

 
Capacity range across models: 60–500 m³/h  •  Silo bottom angle options: 30° or 45°

*Indicative values based on typical capacities; actual values are always calculated case by case.

Cantilever traversing screw reclaimers – TYRANNOSAURUS® LPD Serie

TYRANNOSAURUS® LPD Serie is the versatile traversing reclaimer for A-frame storages, rectangular silos, receiving bins and open piles, suitable for solid biomass fuels, SRF and other bulk materials. Installed on parallel rails in a machinery tunnel, the reclaiming screw extends across the full width of the storage. As the reclaimer travels slowly under the material pile, the rotating screw pulls material toward the discharge chute at the reclaimer's centre, collecting from every layer and homogenising quality and moisture before the material leaves the storage.

Every LPD reclaimer is custom-designed to the specific storage, material and capacity. The cantilever design allows several LPD reclaimers to operate on the same tracks, doubling the reclaiming width from 8–18 m to 18–36 m. The four models in the LPD series (LPD40 to LPD60) cover storage volumes from 1,000 to 30,000 m³, reclaiming widths from 5 to 13 metres, and capacities from 80 to 600 m³/h. BMH has delivered over 150 traversing screw reclaimers worldwide since 1978.

Design highlights & performance of the LPD Series

Model Reclaiming ­width A (m) Tunnel ­width B (m) Tunnel ­height H (m) Capacity* Weight
LPD40 5–8 4.0 3.3 300 m³/h 16 000 kg
LPD50 8–11 4.0 3.3 600 m³/h 20 000 kg
LPD55 10–12.5 4.0 3.3 600 m³/h 22 000 kg
LPD60 10–13 4.0 3.5 800 m³/h 25 000 kg

 
Capacity range across models: 80–600 m³/h  •  For A-frame storages, typical volumes 1 000–30 000 m³

*Indicative values based on typical capacities; actual values are always calculated case by case. Maximum volume depends on the material stored.

Traversing screw reclaimers – TYRANNOSAURUS® LPA Series

The TYRANNOSAURUS® LPA serie is the traversing reclaimer for the largest A-frame storages, rectangular silos and open piles, suitable for solid biomass fuels, SRF and other bulk materials. LPA reclaimers are supported from both ends of the screw, with rail and drive arrangements in the machinery tunnel also at the free end of the screw. This enables the biggest possible storage volumes and reclaiming widths up to 18 metres. As the reclaimer travels slowly under the material pile, the rotating screw pulls material toward the discharge chute, collecting from every layer and homogenising quality and moisture before the material leaves the storage.

Every LPA reclaimer is custom-designed to the specific storage, material and capacity, and several LPA reclaimers can operate on the same tracks. The three models in the LPA series (LPA50 to LPA70) cover storage volumes from 20,000 to 150,000 m³, reclaiming widths from 7 to 18 metres, and capacities from 100 to 800 m³/h. BMH has delivered LPA reclaimers to A-frame storages of up to 100,000 m³.

Design highlights & performance of the LPA Series

 

Model Reclaiming ­width A (m) Tunnel ­width B (m) Tunnel ­height H (m) Capacity* Weight
LPA50 7–11 4.3 4.2 300 m³/h 16 000 kg
LPA60 11–16 4.3 4.2 600 m³/h 20 000 kg
LPA70 11–18 4.3 4.3 900 m³/h 22 000 kg

Capacity range across models: 100–800 m³/h  •  For A-frame storages and open piles, typical volumes 20 000–150 000 m³

*Indicative values based on typical capacities; actual values are always calculated case by case. Maximum volume depends on the material stored.

The leading global screw reclaimer manufacturer since 1970

500+

screw reclaimers delivered worldwide

50+

years of screw reclaimer expertise

10 – 1,200 m³/h

reclaiming capacity range across the product family

100,000 m³

largest A-frame storage delivered

Why BMH screw reclaimers

  • Custom-designed engineering adapts every TYRANNOSAURUS® reclaimer to the specific material, storage geometry and capacity, with a product range spanning 10 to 1,200 m³/h and storage volumes up to 150,000 m³
  • Constant torque application maintains steady pressure on the reclaiming screw even as material characteristics vary, protecting the screw and enabling uninterrupted operation
  • First-in-first-out storage flow ensures consistent fuel quality and reduces the risk of self-combustion in silos and A-frame storages
  • Heavy-duty construction uses wear-resistant materials such as duplex steel, hard welding and replaceable teeth and linings for the most demanding conditions

Retrofit TYRANNOSAURUS® reclaimers to your existing storage

When an existing discharger no longer meets your capacity, material or reliability needs, a TYRANNOSAURUS® screw reclaimer can often be retrofitted into your current silo, A-frame storage or open pile setup.

BMH engineers the retrofit around your existing storage. For most silo installations, this means removing the old foundation interface, fitting a new BMH foundation ring, and installing the TYRANNOSAURUS® reclaimer sized for your storage volume and material. Wear-resistant linings and screw teeth are selected specifically for the material you handle, ensuring the retrofit performs as reliably as a new installation.

For customers with existing BMH or third-party reclaimers still in operation, we also carry out full refurbishments. This can include removing worn linings and welding new ones in place, replacing screw teeth and restoring screw threads, extending the service life of a screw reclaimer.

Our specialists help you assess the best solution for your storage and material, restoring capacity and reliable operation without the disruption of a full rebuild.

Proven in demanding material handling processes worldwide

With 500+ reclaimers delivered worldwide since 1970, TYRANNOSAURUS® screw reclaimers keep material flowing.

Screw reclaimer installation

BMH Life Cycle Services for screw reclaimers

BMH supports every TYRANNOSAURUS® reclaimer throughout its full lifetime, from spare parts and scheduled maintenance to inspections and modernisations.

Original spare parts like screw teeth, linings, screws and bearings keep the reclaimer performing at design capacity, while our service specialists carry out refurbishments and upgrades that extend service life by years.

Let’s talk about your storage and process

TYRANNOSAURUS® screw reclaimers are always custom-designed to meet the specific material, capacity and storage geometry requirements of our customers. Wear resistance, tooth and lining types, and capacity range are all selected to match your application.

Tell us about the material you handle, the capacity you need and your storage, and our specialists will help you find the right solution from the full range of TYRANNOSAURUS® screw reclaimers.