CUSTOMIZED PUMP SOLUTIONS FOR CIJ AND DOD PRINTING SYSTEMS

KNF GAS AND LIQUID PUMPS IN ACTION: DIGITAL INKJET PRINTERS RELIABLE INK TRANSFER -ROBUST AND MAINTENANCE-FREE KNF gas and liquid pumps are used in all areas of industrial inkjet printing, from printing equipment for large-format banners to decorative printing on furniture and ceramics as well as printing systems for barcodes and packaging labels. Our custom-built solutions ensure a continuous transfer of ink and boast a reliable, durable and maintenance-free design. KNF works alongside the world's leading inkjet printer manufacturers. Thanks to our extensive expertise acquired over many years...

CONFIGURED TO MEET CIJ AND DOD REQUIREMENTS PINPOINT PRECISION From ink supply and degassing to purging of print heads, vacuum generation on the print heads for the meniscus effect and ink circulation, our customized, comprehensive solutions use gas and liquid pumps to perform all the processes needed to ensure the continuous transfer of ink. KNF’s diaphragm pumps are tailored to all the specific requirements of both CIJ and DOD technology. FFKM, PTFE, EPDM, FKM and other materials. KNF pumps are able to transfer all types of ink used in the printing industry, from water-based and pigment inks...

MATERIAL OPTIONS MECHANICAL OPTIONS Pump head: HNBR, stainless steel stainless steel, FLEXIBLE, CUSTOM-FIT, COST-EFFECTIVE – FROM STANDARD TO HIGH-END Circuit points and connections Every application is different and some are one of a kind. Our modular system is designed to give you a high degree of flexibility, speed and reliability. You can be sure that every gas and liquid pump supplied by KNF will exactly meet your requirements, no matter how complex or unusual these might be. Series models – the first step to customized pumps KNF offers a range of up to 90 series models designed for handling...

FLEXIBLE SUPPORT FROM START TO FINISH – YOUR ADDED VALUE IS OUR PRIORITY We implement custom-fit service concepts for you. It is important to us to minimize the overall running costs of our pumps, and we take this into account in the pricing of replacement parts. WITH KNF, FLEXIBILITY DOESN’T STOP AT THE TECHNICAL SOLUTION. WE FULFILL YOUR INDIVIDUAL REQUESTS EVERY STEP OF THE WAY U NTIL DELIVERY AND SERVICE. F KN We support all types of production lot ordering – including Kanban, VMI, CMI, B2B and others. customized adaptations are carried out at KNF every year for all our customers worldwide...

INK-SUPPLY, SOLVENT-SUPPLY AND PRINTHEAD CLEANING The pumps (1) and (2) transfer ink and solvent into the main tank. Additionally, the diaphragm pumps contribute to precisely regulating the viscosity of the printing ink within the printing circuit. Before the system is shut down, the purging pump (5) delivers solvent to the printhead to remove any ink residue. INK DELIVERY - FOR RELIABLE INK TRANSFER TO THE PRINTHEAD The pressure pump (3) transfers the ink from the reservoir to the printhead. PRINTHEAD VENTILATION SYSTEM - FOR DUSTY ENVIRONMENTS A gas pump (6) cleans the printhead by producing...

RECIRCULATION FOR CONSISTENTLY HIGH PRINT QUALITY The liquid pumps (3 and 4) continuously circulate ink through the printhead by transferring it from the return header tank back to the supply tank. INK DELIVERY - DIRECT TRANSFER OF INK TO THE PRINTHEAD The liquid pump (2) transfers ink from the external tank to the intermediate tank within the printing circuit. VACUUM GENERATION ON THE PRINTHEAD FOR THE MENISCUS EFFECT The gas pumps (6 and 7) create a slight vacuum in the reservoir to prevent the ink on the printhead from leaking.

DEGASSING - RELIABLE REMOVAL OF DISSOLVED GASSES Dissolved gasses are removed from the ink using a vacuum pump (5) that creates negative pressure on the degassing cartridge.

KNF reserves the right to make technical changes without notice. KNF 08/2025. Printed in Germany.