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About HNPM
Micro annular gear pumps (mzr®-pumps) which make conventional applications more effective and open new technology fields are made at our location in Mecklenburg-West Pomerania from the initial idea over the construction and assembly up to the validity check.
Started in 1998 by a team of 5 in Parchim, our company now counts round about 90 employees. Since January 2013, the company is located in Schwerin.
In addition to construction, development, quality assurance and assembly, we have a technical service team and a specialized technical sales team consisting of engineers and scientists.
After more than 14 years of presence in the market, the mzr-pump has reached an unique profile - long service life, small dimensions, powerful materials and highest dosage precision characterize one of the most efficient industrial metering pumps for small volumes available on the market today.
Highly precise metering volumes in the microliter to milliliter range and the smallest volumetric flows constitute the requirements placed on pumps in the fields of analysis technology, chemistry, medicine, biotechnology and mechanical engineering. Thanks to their high process stability, the micro annular gear pumps developed and produced by us make this new dimension in metering technology available to a wide range of applications.
Micro annular gear pumps are miniaturized rotary positive displacement pumps. They are based on a so-called micro annular gear principle with an externally toothed internal rotor and an internally toothed external rotor. The internal rotor has one tooth less than the external rotor, with tooth ratios of 6/7 and 10/11. The manufacturing tolerances of the rotors are in the range of few micrometers.
The micro annular gear pump product range consists of five different series of mzr®-pumps for dosing and metering small amounts of low to high viscous liquids. With different equipment, dosing volumes starting at 0.25 µl, flow rates ranging from 1 µl/h to 1.1 l/min as well as pressures from 0 to a maximum of 150 bar are possible. The range of the liquid viscosity extends from 0.3 to 1,000,000 mPas. Operation in an explosion-proof area is also possible. Special features are distinguished by low pulsation, low shear stress, low dead volume, long service life, low weight and a compact structure as well as wear and corrosion resistant materials.
Beside several application possibilities at analytical instrumentation, plant engineering and construction, micro annular gear pumps are used for demanding metering tasks in the field of chemical processing and micro reaction technology, within the pharmaceutical and cosmetics industry and much more. Furthermore, HNP Mikrosysteme offers the development of OEM pumps, comprehensive application-specific consulting and technical support.