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
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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
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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