Jiangsu Haifa Machinery Manufacturing Co., Ltd.

KNF was founded by Kurt Neuberger in 1946 in Freiburg, Germany, specializing in diaphragm pump technology. In the field of industrial fluid handling, as well as scenarios such as laboratory R&D, medical equipment, and environmental monitoring, users often face a common challenge: traditional pump products, when conveying corrosive, high-purity, or particle-containing media, are prone to leakage, contamination, or high maintenance costs. Particularly in applications requiring precise flow control and avoidance of cross-contamination—such as chromatography analysis, bioreactor fluid supply, or flue gas sampling—engineers frequently have to weigh reliability against efficiency. KNF's diaphragm pump technology was born to address these pain points. Since Kurt Neuberger founded the company in Freiburg, Germany in 1946, KNF has consistently focused on the R&D and manufacturing of diaphragm pumps. Through an oil-free, seal-less design, it fundamentally eliminates the risk of contact between the medium and the external environment. Taking the laboratory as an example, researchers handling corrosive reagents no longer need to worry about pump corrosion leading to downtime for repairs. In medical devices such as ventilators or dialysis machines, the stable airtightness of the diaphragm pump ensures patient safety. In the field of environmental monitoring, KNF pumps can continuously extract flue gas samples, maintaining long-term stable operation even when containing condensate or fine particles. During implementation, users only need to select the corresponding pump head material (such as PTFE or stainless steel) based on the medium's characteristics and connect standard pipelines. KNF's modular design allows for quick disassembly and assembly, with maintenance cycles typically extended to thousands of hours. For example, a biopharmaceutical company reported that after replacing their original peristaltic pumps with KNF diaphragm pumps, the annual maintenance cost per device was reduced by approximately 30% due to the elimination of frequent hose replacements, while also avoiding sample contamination caused by aging tubing. Data shows that after adopting KNF diaphragm pumps, users experienced an average reduction in equipment downtime of 40%, and fluid transfer accuracy improved to within ±1%. For R&D and production processes that demand high reliability, this improvement directly shortens project timelines and reduces the risk of rework. Since 1946, KNF has served over 100,000 users worldwide, covering laboratories, medical, and industrial fields in more than 50 countries. Choosing KNF means opting for a mature technology validated over 70 years. It does not pursue extreme parameters but focuses on solving the practical problems users encounter every day—making fluid handling safer, more stable, and more economical.