Process technology – crucial for outstanding powders and bulk solids

Process plants

Every day, powders and bulk solids are used in countless products, such as construction materials, plastics, paints, fertilizers, and many others. Process-treated bulk solids are an essential component of numerous materials and are crucial for product quality. To ensure this quality, process technology processes must meet numerous parameters, such as exact particle sizes, particle densities, and residual moisture content (dry substance).

We contribute our expertise and our technologies to ensure that your powders and bulk solids are processed with the best possible quality and process efficiency. Grenzebach works with a holistic approach. We keep different bulk material properties and reaction behaviors in mind.

Our experts have in-depth knowledge of diverse powders and bulk solids used in industry. We support our customers from planning and design to commissioning and maintenance.

Application-oriented process knowledge


For processing chemical solids, Grenzebach supplies application-oriented technology for fine grinding, cooling, compacting and drying.

Stones and soils:

Limestone, quartz or kaolin – Grenzebach offers solutions for crushing, classifying and compacting various mineral materials.

Paints and coatings:

Processing pigments – a core process in the production of paints and coatings. Here, Grenzebach contributes its expertise in drying and compacting pigments.

Special products:

Special products need special technologies. Cold grinding or grinding coating, gentle deaeration, gentle drying or iron-free grinding – your task is our motivation.

Our experience – your success

Our solutions and services incorporate 130 years of experience in the efficient processing of raw materials, dating back to Babcock BSH. Combined with the process and technology knowledge gained in Grenzebach's 60 years, this means we can apply extensive know-how to your process technology solutions. Our experience guarantees your success.

Grinding, classifying, compacting

Mechanical Process Technology

Coarse crushing or finest powder grinding? Compacting bulk solids to the highest degree? Classifying bulk materials according to their particle size? Whatever your task, Grenzebach will support you in selecting the optimum process technology. With our proven technologies, we will equip you with a tailor-made mechanical process engineering system.

Whirlwind mill: Grinding soft to medium-hard bulk materials

Whirlwind mill: Grinding soft to medium-hard bulk materials

Grenzebach's whirlwind mill ensures excellent results in the field of fine and ultra-fine grinding of soft to medium-hard bulk materials (up to Mohs hardness 5). The whirlwind mill can produce very fine powder qualities with narrow particle size distribution and excellent upper particle size limitation.

Sample applications:

  • Limestone
  • Cellulose insulation
  • Gypsum
  • Pigments
  • Salts of various origins
Vibration tube mill: Grinding medium-hard and hard products

Vibration tube mill: Grinding medium-hard and hard products

Grenzebach's vibrating tube mills are the solution for grinding medium-hard to hard, abrasive products. For example, they can grind slags, ashes or fireclay and operate according to the vibromill principle. In this process, Grenzebach's vibration tube mill achieves consistently high throughput rates with low energy consumption.

Sample applications:

  • Ashes
  • Slags
  • Quartz
  • Fireclay
Jet Airstream Sifter: Separating fine, medium and coarse material