Sealed Coaxial Needles – 3-Pack, Save up to 9%
Sealed Coaxial Needles – 3-Pack, Save up to 9%
Forget compromises: the ideal solution for core-shell electrospinning with any type of polymer, even in the most corrosive solvents. Suitable for all electrospinning systems.
3-pack of identical sealed coaxial needles — the convenient choice for parallel multi-needle configurations and for keeping spares at hand, at a lower unit price than buying single needles.
SAVE WITH THE 3-PACK
- 2 layers: €419.75 for 3 needles (€139.92 each) instead of €455.40 — you save €35.65 (~8%) vs the single needle
- 3 layers: €645.15 for 3 needles (€215.05 each) instead of €707.25 — you save €62.10 (~9%) vs the single needle
A NEEDLE FOR SPINNING TWO OR MORE SOLUTIONS SIMULTANEOUSLY
The sealed coaxial needles are manufactured in AISI 316 stainless steel and assembled entirely by a laser welding process to guarantee maximum geometric precision and high levels of cleanliness, eliminating any risk of contaminating the solutions.
Two standard versions are available, with two or three concentric layers, customizable upon request.
Standard dimensions (2 layers):
- Inner needle: G21
- Outer needle: G15
Standard dimensions (3 layers):
- Inner needle: G21
- Middle needle: G15
- Outer needle: G11
WHAT ADVANTAGES DO YOU GET FROM USING SEALED COAXIAL NEEDLES?
With coaxial needles you gain the ability to spin two or more polymers simultaneously within the same fiber, producing fibers with an inner core and outer shell.
This is useful when a single material would force a compromise between two properties — for example, one material offers the desired mechanical strength, while a different material shows a better degradation rate.
These needles are very compact and make it possible to create high-productivity configurations: they can be assembled in parallel up to tens of units — which is exactly where this 3-pack comes in — thanks to a simple, solid mechanical structure and the distribution of solutions through standard Luer-UNF connections.
The rear threaded hole permits both fastening to the support structure and a stable connection of the high voltage.
LOOKING FOR A MORE VERSATILE SOLUTION?
In our Modular Coaxial Needle Kit, every concentric needle is independent, so it can be equipped with a different diameter and supplied with solutions of different materials through standard Luer Lock connections.
LOOKING FOR A COMPLETE SET?
The Sealed Coaxial Needle Kit — needle, dielectric support and fittings — is available at a special price.
FREQUENTLY ASKED QUESTIONS
How much do I save compared to buying single needles?
About 8% on the 2-layer version (€35.65) and about 9% on the 3-layer version (€62.10) compared to buying three single sealed coaxial needles.
Why would I need three identical coaxial needles?
Two common cases: parallel arrays to multiply throughput (each needle fed by its own pump lines) and continuity of operation — keeping cleaned spares ready so production or experiments never stop.
Are the needles in the pack identical to the single product?
Yes — same AISI 316 laser-welded needles, same geometries (G21/G15 for 2 layers, G21/G15/G11 for 3 layers) as the single sealed coaxial needle. Only the pack size and unit price change.
