Hydraulic silo discharge

Mawera SST

Application: Fuel supply for wood chip biomass boilers

1. System description
The Mawera SST, a two-beam, hydraulically operated discharge system, is used for the uniform and continuous discharge of wood chips from a rectangular storage silo. The sliders or scrapers move the material in alternating strokes to feed the boiler.

2. Main dimensions
Silo length:
• Version with 12 sliders: 15.00 m
Internal silo width: 4.24 m
Scraper blade width: 900 mm
Scraper blade depth: 250 mm
Scraper blade height: 70 mm
3. Drive and operation
Hydraulic drive with two cylinders
Thrust force: 160 kN
Tensile force: 80 kN
Automatic, alternating stroke control synchronized with the boiler control
4. Connections
Material discharge into a central collection pit
Further transport via screw or chain conveyors
Boiler connection: DN 315
5. Installation requirements
Concrete floor, MONO-FINISH quality, tolerance ±5 mm
Base plates, openings, and covers to be provided by the customer
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Maintenance access to the hydraulic unit must be ensured
6. Advantages
Reliable operation with varying wood chip quality
Consistent fuel supply for 24/7 boiler operation
Low maintenance requirements
Already disassembled, will be loaded onto a truck.
The support beams can be disassembled into 6.3 m segments.
The width during transport is not 4.24 m, as the beams can be removed side by side.
The scrapers are removable.
Transport is possible with a standard truck.
Already disassembled.

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