The maximum viscosity is 300,000 cps. Low-viscosity materials will print differently than high-viscosity materials. Consider nozzle and needle parameters to ensure that your material can be extruded.   


For low viscosity materials, we reccommend using the electromagnetic droplet printhead: https://cellink.com/product/bio-x-emd-printhead/ 


Some high viscosity materials may require an external pressure source.