BRT HARTNER DM

BRT HARTNER DM

Mixing unit for the pre-treatment of digestate, sewage sludge, etc.

Product Highlights

  • Driven swivel device for the mixing unit to increase availability
  • Available in two versions - filling by belt conveyor or by wheel loader
  • Easy retrofitting in existing systems
  • High throughput capacity combined with high durability


The BRT HARTNER DM Digestate Mixer prepares digestate, sewage sludge or similar materials for aerobic treatment or the subsequent composting process. For this purpose, these almost structureless materials are mixed with structure-forming materials such as green waste, raw compost or screen overflow.

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Decompaction Rollers

Unique combination of BRT HARTNER DC Decompactor and rotor of a BACKHUS Turner.

Two, respectively three, rollers of the decompaction unit (depending on the design)


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Feed Hopper

  • Scraper chain conveyor with monitoring of synchronization
  • Two versions depending on filling by conveyor belt or by wheel loader


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Automated Dosing

Loosened and uniform feeding of the material into the sorting process


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Ideal for Composting

Due to the systematic mixing of the substrates by mixing rollers in the dynamic material flow, compaction or kneading effects are effectively avoided. The substrate is homogenized and loosened up. As a result, you receive the optimum starting material for the subsequent aerobic treatment (rotting). 


Technical Data BRT HARTNER DM


  •  
  • Effective Length Approx. (mm)
  • Usable Width Approx. (mm)
  • Filling Height Approx. (mm)
  • Filling Volume Approx. (m3)
  • Feeding Length Approx. (mm) 
  • Discharge Width Approx. (mm) 
  • Diam. Mixing Roller Approx. (mm) 
  • Diameter Mixing/Discharge Width (mm)
  • Throughput Capacity Approx. (m3/h) 


  • DM 12
  • 6,400
  • 1,200
  • 1,200
  • 10
  • 1,500
  • 1,200
  • 750
  • 610
  • 36 - 180


  • DM 20
  • 11,900
  • 2,000
  • 1,700
  • 40
  • 6,800
  • 2,000
  • 1,200
  • 610
  • 80 - 250


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