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SIEFER – Fertigung

Develops and manufactures rotor-stator machines of the Trigonal® brand for mixing, size reduction and dispersion technology.

SIEFER Logo

Wilhelm Siefer GmbH & Co. KG

Velbert (Bahnhofstr. 114, 42551)New on Amplifa

More than 50 yearsExperience in size reduction and mixing technology
More than 6,000Machines sold since 1978
67 %Market share of Trigonal® machines
91 %of all machines produced still in operation
More than 6,000Process plants in operation

This is who we are

Wilhelm Siefer GmbH & Co. KG, based in Velbert, develops and manufactures rotor-stator machines under the Trigonal® brand for wet processing of products with low to high viscosity, such as liquid mixtures or solids in liquid. The machines are used for mixing, size reduction, homogenizing, dispersing, emulsifying, deflaking, aerating and other process tasks, among other things in recycling and pulp preparation. The company operates with a high level of in-house production: development and manufacturing are carried out entirely in-house at the German site, supplemented by selected partners in specialized areas. The product range comprises four sizes from SM 180 to SM-D3 as well as the laboratory machine SM 102-28, each in variants with heating/cooling jacket. Since 1978, more than 6,000 machines have been sold; a large proportion of all machines ever produced are still in operation. Services also include process support, spare parts service and technical documentation.

Site
Velbert
Processes
Mixing (liquid mixtures, solids in liquids), Size reduction (fine & coarse), Homogenizing, Dispersing, Emulsifying, Deflaking, Aerating, Accelerating reactions
Materials
Rotor-stator systems, Heating/cooling jacket, Trigonal® SM 180 / SM 180 HK, Trigonal® SM 290 / SM 290 HK, Trigonal® SM-D2, Trigonal® SM-D3 / SM-D3 HK, Trigonal® laboratory machine SM 102-28
Industries
Wet processing / processing technology, Recycling, Pulp preparation, Wet processing / processing technology (mixing, size reduction, dispersing,, Industries with low- to high-viscosity products (liquid mixtures,
  1. 01

    Product consulting and product evaluation

  2. 02

    Design of the rotor-stator system

  3. 03

    Development and engineering (CAD)

  4. 04

    In-house manufacturing at the Velbert site

  5. 05

    Assembly and commissioning

  6. 06

    Process support and spare parts service

Materials and processes

Rotor-Stator

Rotor-stator systems

Up to four coaxially arranged tooth rings with variable channel geometry allow optimal adaptation to the medium and process.

HK

Heating/cooling jacket

Machine types SM 180, SM 290 and SM-D3 are available as variants with heating/cooling jacket.

SM 180

Trigonal® SM 180 / SM 180 HK

Compact machine with throughput of 4–28 m³/h, 6 bar pressure and 7.5–45 kW drive power.

SM 290

Trigonal® SM 290 / SM 290 HK

Lower speed with powerful drive; throughput 6–120 m³/h, 15–110 kW.

SM-D2

Trigonal® SM-D2

Throughput 15–150 m³/h at 8 bar and 15–160 kW drive power.

SM-D3

Trigonal® SM-D3 / SM-D3 HK

Machine with power reserves; throughput 20–250 m³/h, 8 bar, 90–250 kW.

SM 102-28

Trigonal® laboratory machine SM 102-28

Laboratory machine with throughput of 0.006–1 m³/h, 2 bar and 3–11 kW for trials and process development.

Locations

Standort Velbert

Velbert

DE

Development, sales, manufacturing

Materials
Rotor-stator systems in various material variants
  • Trigonal® SM 180 / SM 180 HK
  • Trigonal® SM 290 / SM 290 HK
  • Trigonal® SM-D2
  • Trigonal® SM-D3 / SM-D3 HK
  • Trigonal® laboratory machine SM 102-28

Inside the production

SIEFER Trigonal® machines
SIEFER Trigonal® machines

Industries

Wet processing / processing technologyRecyclingPulp preparationWet processing / processing technology (mixing, size reduction, dispersing,Industries with low- to high-viscosity products (liquid mixtures,

Processes & technical limits

ProcessesToleranceMax. partWeightLot sizeMaterials
Mixing (liquid mixtures, solids in liquids)Engineering–––––
Size reduction (fine & coarse)Engineering–––––
HomogenizingEngineering–––––
DispersingEngineering–––––
EmulsifyingEngineering–––––
DeflakingEngineering–––––
AeratingEngineering–––––
Accelerating reactionsEngineering–––––
PolymerizingEngineering–––––
Shearing under heat application / heating (applying heat, boiling under shear stress)Engineering–––––
De-agglomerationEngineering–––––
Development and manufacturing of mixing and size reduction machines (in-house production, highAssembly–––––

5 Anlagen & Maschinen

MachineManufacturer / modelQuantityWorking areaYear builtSite
Rotor-stator machine (Trigonal®) SM 180 / SM 180 HKWilhelm Siefer GmbH & Co. KG SM 180 / SM 180/HK–Throughput (water) 4–28 m³/h, pressure 6 bar, drive power 7.5–45 kW, dimensions 965/420/420 mm–Velbert
Rotor-stator machine (Trigonal®) SM 290 / SM 290 HKWilhelm Siefer GmbH & Co. KG SM 290 / SM 290/HK–Throughput (water) 6–120 m³/h, pressure 6 bar, drive power 15–110 kW–Velbert
Rotor-stator machine (Trigonal®) SM-D2Wilhelm Siefer GmbH & Co. KG SM-D2–Throughput (water) 15–150 m³/h, pressure 8 bar, drive power 15–160 kW–Velbert
Rotor-stator machine (Trigonal®) SM-D3 / SM-D3 HKWilhelm Siefer GmbH & Co. KG SM-D3 / SM-D3/HK–Throughput (water) 20–250 m³/h, pressure 8 bar, drive power 90–250 kW–Velbert
Laboratory machine (Trigonal®) SM 102-28Wilhelm Siefer GmbH & Co. KG SM 102-28–Throughput (water) 0.006–1 m³/h, pressure 2 bar, drive power 3–11 kW–Velbert

Additional services

Development and manufacturing of rotor-stator machines (Trigonal®)Custom technical solutions / product consultingLaboratory machines SM 102-28Process supportSpare parts serviceTechnical documentation (CAD)

History

  1. More than 50 years of experience in size reduction and mixing technology

  2. 1978

    Start of machine sales; more than 6,000 machines sold since then

  3. More than 6,000 process plants with Trigonal® technology in operation

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