ramé-hart instrument co. is the world's number one fabricator of custom-made coaxial, triaxial and quadaxial needles used for electrospraying and electrospinning applications, and laboratory and surface science testing.
The prebuilt quadaxial needle is currently available in one size using gauges 24, 18, 14, and 10.
If you would like to see the detailed drawing for this part, please go to: http://www.ramehart.com/pdf/quadaxial_prebuilt_24181410.pdf
This is a preconfigured quadaxial needle and is kept in stock. If you are interested in a custom quadaxial needle made to your specifications, please visit this page for ordering instructions: https://www.customspinnerets.com/quadaxial-needles