Metering Systems
Metering Systems
Planetary Spinning Pumps - MarSpin

Planetary Spinnng Pumpen – The heart of a spinning plant and used in large quantities

The precise and reliable spinning pumps enable the fine uniform filament yarns in close tolerance over years. The production of modern synthetic yarn with tailored quality and function demands highest process precision. Feinpruef Spinning Pumps of Mahr Metering Systems deliver the polymer melt in highest precision and provide the basis of first class yarn quality for the winder.
The planetary spinning pumps are able to deliver upto 40 uniform streams of polymer fluids. Such gear pumps are not only used for production of synthetic fiber and yarn, of that, for example, micro fiber textiles, tights, spandex, protective clothing and even astronautic overalls will be made, but also for applications of dosing glue & adhesives and almost all kind of fluids.

The product range for gear pumps can not be completey described due to the huge diversity of designs, as well as the application fields. Please contact us in case of requirement. We are pleased to provide detailed consultation and optimal solutions for you.

  • Technical Data
  • Material
  • Drive Options
  • Options

By means of appropriate technical design the spinning pumps ca be mounted either on a spining beam or on a connection block.

dimensions ø mm 90 100 120 130 138 146 160 180
flow cc/rev 0,1 - 4,8 0,1 - 4,8 0,25 - 6 6 - 12 0,3 - 4,8 0,3 - 6 10 - 30 0,3 - 2,4
number of outlets 6 - 8 2 - 8 2 - 12 2-4 8 - 24 8 - 32 3 - 4 24 - 40
counter pressure bar (max) 400 400 400 400 400 400 500 300


Material Field of application Admissible operating
temperature max. °C
Admissible cleaning
temperature max. °C

highly tungsten-, vanadium and
chromium alloyed high speed steell

  • extremely high wear-resistance
  • exclusively produced for Mahr
450 550

molybdenum tungsten vanadium and chromium alloyed high speed steel

  • highly wear-resistant
450 550

acid resistant nickel alloy, additions of molybdenum and chromium

  • very good resistance especially to mineral and organic acids
250 300

high chromium alloyed stainless steel, additions of molybdenum and vanadium

  • optimal combination of resistance to wear and corrosion
  • for use with chemically aggressive media


180 200

These materials are used in combination.

high chromium alloyed stainless
steel, additions of molybdenum and vanadium

Stellite S2
cobalt-based alloy with high chromium content and additions of tungsten and nickel


  • very good resistance and good polishability
  • suitable for food and pharmaceutical industries

  • highly wear resistant
  • corrosion resistant











high chromium alloyed stainless
steel, additions of nickel, molybdenum and

high chromium alloyed stainless
steel, additions of nickel, molybdenum and

  • high degree of hardness with excellent corrosion resistance
  • for highly stressed components







Coating technologies take a significant key position in the development of new products. The various coating technologies enlarge the application possibilities of the used base materials. Furthermore, a coating reduces friction, wear and corrosion. In principle, all the named materials can be coated depending on the specification.


Diamond-Like Carbon (DLC) improves the properties:

  • high surface hardness
  • high wear protection
  • smaller coefficient of friction
  • better corrosion reduction to agressive media
  • higher chemical resistance / stability
  • non-stick effect (reduced adhesion of polymers and other materials)
  • high temperature firmness to 250°C
  • excellent accuracy to size (no change of the Mahr / Feinpruef specific high discharge accurancies)
  • high economic efficiency through longer endurance and improvement of the technological properties

DLC- coatings are biocompatible and facilitate also the use in the food industry and in the medical field.

The pump drive connection is available in following types:

  • shaft type
  • plug type

Gear pump with motor

  • Base plate
    • with mounting block
  • Coupling
    • curved tooth coupling
    • cardan shaft
    • all-steel coupling
    • magnetic coupling
  • Motor
    • asynchronous gear motor
    • servomotor / servo gear motor
    • synchronous gear motor

The drive units are designed according to the operating conditions.

Sealing systems for the gear pumps

  • stuffing box seal
  • rotary shaft seal
  • labyrinth sealing
  • mechanical seal
  • magnetic coupling


Atex Directive II2Gc

A version according to ATEX directive is available for the pump, as well as for the drive.

Heating or  cooling for the gear pumps

Heating or cooling can be provided electrically, as well as by the thermal fluid.