High-quality metrology for quality control in the measuring room, production, incoming goods and development.
Gear Metering Pumps & Meter Mix Dispense Machines with highest accuracy for processing liquids and pastes.
High-precision rotary stroke bearings for backlash-free linear and rotational movements for use in machine and device construction.
Mahr Industry Solutions: Our products guarantee a wide range of applications for the highest requirements
Polymer Metering Pumps for Fiber Production: They produce filaments with perfectly consistent thickness
Meter Mix Dispense Technology: Advanced technology for accurate mixing and dosing processes
Metering Machines for Automotive Industry: Our Metering pumps and mix dispense solutions will provide reliable support for your industry
Pioneering machine solutions for the construction industry with high efficiency and advanced technology
Metering Machines for Chemical Industry: Our Metering pumps and mix dispense solutions will provide reliable support for your industry
Metering Machines for Composites: Our Metering pumps and mix dispense solutions will provide reliable support for your industry
Metering Machines for Fibre Industry: Our Metering pumps and mix dispense solutions will provide reliable support for your industry
Metering Machines for Adhesives Industry: Our Metering pumps and mix dispense solutions will provide reliable support for your industry
Metering Machines for Plastics Industry: Our Metering pumps and mix dispense solutions will provide reliable support for your industry
Metering Machines for Aerospace Industry: Our Metering pumps and mix dispense solutions will provide reliable support for your industry
Metering Machines for Engineering Industry: Our Metering pumps and mix dispense solutions will provide reliable support for your industry
Metering Machines for Packaging Industry: Our Metering pumps and mix dispense solutions will provide reliable support for your industry
Proven use for decades to spin finest yarn: planetary spinning pumps are the heart of every synthetic fibre spinning plant.
Spin finish dosing pumps do not only meter preparation fluids. They can also be used for the consistent dosing of water, perfume or even oils.
There are almost no limits to the use as a dosing pump in various industries. As a spinning pump it is only used for special applications.
Predominantly used in spinning and adhesives technology, they offer the possibility of realizing two flow rates with minimal space and one motor drive only.
Product bores which are on both sides of the pump body allow the pump to be integrated directly into the production line.
They can be used for all applications. Direct installation in the product line does not require an additional clamping block.
Discharge pumps ensure gentle discharge of polymer melts with low product shear. Booster pumps ensure a defined process pressure for downstream tools such as dies or extruders.
Gear pumps for the chemical industry, process pumps
Optimized metering pumps for chemical processes – low-pulsation gear pumps with high chemical resistance and precise metering
Paint metering pumps can also be used for robot applications. Even at short flushing cycles these pumps show excellent flushing results.
Meter Mix Dispense Machines: Advanced machines for accurate meter mix dispensing processes
Mixing Heads: Mahr Unipre provides a range of standard and custom mixing head models
The effectiveness of mixing and dosing machines is directly influenced by the quality of the associated peripheral equipment
MarMax M 12: Lightweight design Low flow rates for prototyping or laboratory tests
MarMax CP 30: Our allrounder With an output of up to 6 l/min it is suited for all industries
MarMax CP 50: Compact and efficient Portable machine with an output of up to 10 l/min for flexible applications
MarMax CS 50: High-capacity and seamless heating The perfect meter mix dispense machine for high material flow rates
Custom Metering Machines: Mahr Unipre will create a custom machine tailored to your specific requirements
Static Mixing Heads: Mahr Unipre provides a range of static mixing heads
Dynamic Mixing Heads: Mahr Unipre provides a range of dynamic mixing heads
Static-Dynamic Mixing Heads: Mahr Unipre provides a range of static dynamic mixing heads
The challenges in thechemical and process industries
In the chemical industry, precision is not just a question of efficiency—it determines absolute process reliability, quality, and cost-effectiveness.
However, conventional pump technologies quickly reach their limits, especially when dealing with aggressive, corrosive, or abrasive media, high temperatures, or extreme viscosities.
Problems such as pulsating delivery, inaccurate dosing quantities, leaks, increased maintenance requirements, or inadequate sealing concepts often arise. In demanding applications, such as the feeding of reactive chemicals or the pumping of temperature-sensitive reaction media, a conventional pump is often not reliable enough to keep the process stable.
Gear pumps from Mahr Metering Systems are specially designed for the extreme demands of the chemical and process industries and offer a solution based on decades of experience in high-pressure, high-temperature, and high-viscosity applications. The design, material selection, and coating technologies have been continuously refined to ensure that the pumps deliver precise, low-pulsation flow and maximum process reliability—even with particularly difficult media and conditions.
Our solution: Mahr Chemical Pumps
Thanks to a wide range of special materials and coatings, application-specific bearing materials, and proven sealing systems, the pumps are also suitable for toxic, corrosive, or abrasive liquids. Their modular design allows them to be perfectly adapted to a wide variety of process environments.
MarChem gear pumps thus offer a reliable, precise, and economical solution for demanding chemical applications.
Technical advantages of gear metering pumps for the chemical industry
- Metering accuracy: Precise delivery rates with minimal pulsation
- Chemical resistance: Wide selection of special steels, bearing materials, and coatings for aggressive, corrosive, or abrasive media
- Secure sealing: Various sealing systems tailored to the application
- Low maintenance requirements: Modular design for minimal downtime
- ATEX certification available: For potentially explosive atmospheres
- Energy efficiency: Speed control of energy-saving motors via frequency converters to adapt to process requirements
| Pump type per size | 5 and 10 cc/rev 20 and 50 cc/rev 120 and 200 cc/rev 350 and 500 cc/rev 750 and 1500 cc/rev | ||
| Viscosity | 1 - 1,000,000 mPas | ||
| Output pressure | 120 bar standard (depending on viscosity, higher on request) | ||
| Operating temperature | up to 300 °C | ||
| Material | in correlation to the metered liquids, a variety of specialised steels, special materials and various coatings are available | ||
| Medium to be pumped | various liquids, including corrosive and abrasive media (on request) | ||
Sealing systems for the gear pumps
- stuffing box seal
- rotary seal
- single / double mechanical seal
- magnetic coupling
Gear metering pump with drive unit
- 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 geared motor
The drive units are designed according to the operating conditions.
Coating
Depending on the metered liquid, there is a variety of coating options to choose from.
ATEX Directive 2014/34/EU
A version according to the Atex directive is available for the pump as well as for the drive.
Tempering of gear pump
Electrical heating, liquid or steam heating
Further features The dosing pumps can be supplied with additional equipment according to requirements:
- speed control by inverter
- pressure monitoring
- temperature monitoring
- flow monitoring
- communication to other machines or systems
Frequently Asked Questions
Technical answers to frequently asked questions about metering solutions for the chemical industry
They offer high metering accuracy, low-pulsation delivery, chemical resistance of materials, and high process stability. This makes them ideal for applications involving aggressive chemicals, high temperatures, pressure fluctuations, and demanding metering requirements.
Gear metering pumps are suitable for a wide range of chemical media, including acids, alkalis, solvents, polymers, resins, additives, and highly viscous liquids. Thanks to the use of special materials, they are also suitable for many other corrosive and abrasive substances.
Low-pulsation dosing means uniform, continuous pumping without pressure fluctuations. This is particularly important for chemical processes, as it keeps mixing ratios stable, makes reaction processes controllable, and increases production quality and process reliability.
Compared to diaphragm or hose pumps, gear metering pumps offer higher metering accuracy, pulsation-free delivery, better controllability, higher process stability, and a longer service life in chemically demanding applications.
Do you have questions about our products?
Please contact us at +49 (0) 551-7073-100
