High-Quality Customised Inkjet Pumps

KNF provides state-of-the-art pump solutions for the demanding tasks of drop on demand and continuous inkjet printer technology.

Increasing Demands in Today's Inkjet Technology

The modern printing industry faces a multitude of ever increasing or entirely new challenges. Users demand fast printing and quick response times when the printing tasks change. But also, recent environmental measures within the industry like the increasing use of water-based inks create challenges calling for innovative and customised technical solutions.

KNF knows these trends and therefore supports its customers with high-quality pumps that help face these challenges. Print systems without pumps are hard to imagine. In this area, KNF pumps are responsible for a multitude of tasks like ink supply, ink recirculation and degassing of ink. Customers value the pumps' quality, their durability and customisability as well as many more aspects.

Inkjet Relies on Pumps

Pumps are used to hold and control the meniscus at the nozzles by regulating the negative pressure in the printhead, helping to achieve proper print quality. In addition, small pumps create pressure for ink circulation in the printhead, and the printhead is purged via gas or liquid pumps. Also unused ink is removed from storage containers with the help of KNF solutions.

The Ideal Choice: Diaphragm Pumps

Of all pump types, diaphragm pumps are the ideal solution for inkjet printing. They are self-priming and are capable of running dry which is crucial in this field. With their small dimensions, they fit in space-limited environments. A reliable sealing of the pump head and the hydraulic connections allows for safe long-term operations.

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High-Quality Components

As the market and technology leader for diaphragm pumps, KNF ensures that every product is tested before shipping. This ensures maximum quality and reliability enabling uninterrupted operation over several years.

Customised OEM Inkjet Pumps

KNF offers high-end pumps that are individually customisable relying on a modular design using tested components. Customers can choose different aspects like hydraulic connections, pump material and mechanical as well as electrical adjustments. Further options like speed-controlled brushless motors for integration with sensors are possible.

Wide Choice of Materials for Many Inks

KNF offers a variety of materials for the wetted parts of our range of diaphragm pumps. Options include PTFE, PVDF, peroxide-cured EPDM, FFPM, FPM, PP, PPS, stainless steel, and many more. These choices enable customers to handle inks containing pigments made of titanium dioxide, silver or other metal particles and UV-cured inks. Also, FDA- and NSF-approved inks can be transferred as well as conventional water- or solvent-based inks.

Safe and Reliable

For safe operation, KNF pumps offer high chemical resistance, can transfer even abrasive inks, and do not produce particles themselves which could damage the printhead. Our inkjet pumps also do not change the ink characteristics with their gentle and low pulsation pumping process.

Inkjet Pumps for DOD and CIJ

In inkjet printing, some applications use Drop on Demand (DOD) while others rely on Continuous Inkjet (CIJ) technology. KNF offers for both areas the right pump solutions and understands the needs of these markets drawing from decades of experience in inkjet technology.

KNF inkjet pumps are used for a multitude of inkjet technology applications.

At the Forefront of Diaphragm Pump Technology

KNF pumps are not only customisable to our customers’ needs, but they also provide cutting-edge technological advantages. One example KNF Smooth Flow Technology. In inkjet applications, this outstandingly low pulsation reduces flow resistance in tubes, even with high viscosity inks and ensures a high level of print quality.

Our Products

KNF Gas & Liquid Pumps for DOD & CIJ

Read our brochure to find out how we support the world's leading printing equipment manufacturers with solutions for inkjet technology.

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