Advanced Pump Drive Technology for Diaphragm Pumps
Four new KNF pump series incorporate the most advanced brushless direct current (BLDC) pump motor technology. With these completely new, in-house developed pump drive units from the Digital Customization series, KNF pushes the technical limits of diaphragm pumps, once again offering unique and significant advantages for customers. The advanced motors combine outstanding durability, compact dimensions and many options for digital customization.
Maximum Performance-to-Size-Ratio and Lifetime
‘Direct Current Brushless Integrated’ (DC-BI) uses a modern BLDC pump motor. While developing the new pump drive unit, KNF put special emphasis on maximizing service life and compactness. For the first time in diaphragm pump technology, the motor has been fully integrated into the pump housing.
This unique integration allows for unprecedented compactness and light weight, as well as optimized bearings. The drive unit uses larger than normal ball bearings for maximum lifetime. In addition, the ball bearing configuration has been optimized by cutting out a third ball bearing commonly found in conventional pump setups. By manufacturing the entire pump drive unit in-house, KNF is also less dependent on a single supplier, further increasing product availability and order reliability.
Full Digital Customization of BLDC Pump Motor Possible
As DC-BI uses a modern BLDC pump motor and KNF has full control over electronics and software, comprehensive digital customization is possible. This allows for sophisticated parameterization of aspects such as motor speed range, motor speed ramp, threshold values or error message output. With so many options for customization, the new series using DC-BI can be adapted to a multitude of requirements, making them suitable for almost every field of application.
KNF DC-BI Series Range
Currently, four KNF diaphragm gas pump series make use of the new BLDC pump motor technology: KNF NMP 830 DC-BI, NMP 830 HP DC-BI, NMP 850 DC-BI and NMP 850 HP DC-BI. These micro gas pumps can handle most gases at a flow rate of up to 7 l/m and with a maximum pressure of up to 3 bar. For vacuum generation, they achieve up to 220 mbar abs.
Combined with their advanced DC-BI pump drive technology and many customization options, they are suitable for even the most demanding applications such as medical, environmental monitoring, inkjet technology or analytical instruments. The new KNF technology is also available for liquid pumps as a project option.