Dosimar | Gear Metering Pumps

Perfectly matched
to your application

Precise and universal – our Dosimar family. Gear Metering Pumps for PUR, adhesives, resins & co.

Gear Metering Pumps | integrated & connected

Dosimar Gear Metering Pumps with Inline Mounting

Thanks to its lateral drilling, the Dosimar gear metering pump can be integrated directly into a wide variety of installation situations. It is often installed in meter mix machines, for example. The so-called mounting gib allows easy mounting of the pump in the machine.

In addition to dosing polyurethane components like isocyanates and polyols, various resins and other liquids, this pump series is also used in the production of various fibres such as aramid and PAN. In addition, this pump meters additives in the polimerization process.

Dimensions mm55x67.575x10296x125100x152245x260Ø 79
Flow cc/rev0.02 - 30.08 - 66 - 5070 - 100150 - 2000.08 - 6
Counter pressure bar (max)30100100100100100
MaterialMaterial propertiesField of applicationPermissible operating temperature max.Permissible cleaning temperature max.
F16highly tungsten, vanadium and chromium alloyed high speed steel
  • extremely high wear-resistant
  • exclusively made for Mahr
N19high chromium alloyed stainless steel, additions of molybdenum and vanadium
  • optimal combination of resistance to corrosion and wear
  • for chemically aggressive media
N31High chromium alloyed stainless steel, additions of molybdenum and vanadium
Can be used in combination with Stellite S2.
  • very good resistance and good polishability
  • suitable for food and pharmaceutical industries
Stellite S2cobalt-based with high chromium content and additions of tungsten and nickel
Can be used in combination with N31.
  • highly wear-resistant
  • corrosion resistant
depending on material combination
depending on material combination
N33high chromium alloyed stainless steel, additions of nickel, molybdenum and manganese
  • high degree of hardness with excellent corrosion resistance
  • for highly stressed components

The pump drive connection is available in the following types:

  • plug type


Gear pump with motor

  • Base plate with mounting block
  • Coupling
    • curved-tooth coupling
    • all-steel coupling
    • magnetic coupling
  • Motor
    • asynchronous motor
    • gear motor
    • synchronous motor

The drive units are designed according to the operating conditions


Coating technologies take a significant key position in the development of new products. The various coating technologies enlarge the application possibilities of the base materials. Furthermore, a coating reduces friction, wear and corrosion. In principle, all 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 aggressive 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 high discharge accuracies)
  • high economic efficiency through longer endurance and improvement of technological properties
  • biocompatible, allows the use in the food industry and in the medical field


Sealing systems for the gear pumps

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

ATEX Directive 2014/34/EU
A version according to Atex directive is available for the pump as well as for the coupling, motor and the complete unit.

Heating or cooling for the gear pumps Heating or cooling can be provided electrically as well as by the thermal fluid.


Dosimar Gear Metering Pumps



Inquiry Specification
Gear Metering Pumps

Please fill out this form – with this data we will select the suitable gear pump.


Technical Information

Pump Material of Construction



Inquiry Specification
Drive Unit

Please fill out this form – with this data we will select the suitable drive for the pump.


Mahr | Note

The entire pump portfolio cannot be completely listed due to the large number of available designs. The same applies to the fields of application. Please contact us!

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Mahr Metering Systems | Contact

Do you have questions about our products?

Please contact us at +49 (0) 551-7073-100

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