Accessories & Materials

Multiple coaxial spinnerets

Six coaxial outlets in a circular head, with separate core and shell solution channels. Designed to increase coaxial electrospinning output on laboratory equipment.

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6 coaxial outlets
Separate core / shell channels
Standard Luer lock connections

Feeding & positioning

Keep core and shell solutions separate.

The head has two solution channels. The upper and lower liquid inlets are located on the side, feeding the inner and outer flow paths of the coaxial outlets.

Adjust the head to the collection setup.

The insulating holder allows position, reach and angle adjustment. The black adjustment screws set the spinning angle. A high-voltage connection is provided on the head.

Needles & cleaning

A head that opens for cleaning.

The internal assembly can be disassembled to access and clean individual parts. A die-cut gasket seals the head, while the small internal cavity reduces the amount of solution retained inside.

Coaxial tips with adjustable offset.

The elongated needles concentrate the electric field at their tips. The inner-to-outer needle-tip offset can be adjusted by up to 1.0 mm. Standard Luer lock connections and concentric needle alignment support assembly and use.

Specifications

Parameter	Specification
Outlet arrangement	6 coaxial outlets in a circular head
Solution inlets	Two side inlets; separate inner and outer channels
Maximum needle-tip offset adjustment	1.0 mm
Connections	Standard Luer lock; high-voltage connector

Needle size reference
Gauge	Inner diameter (mm)	Outer diameter (mm)
10G	2.70 ± 0.02	3.43 ± 0.02
11G	2.64 ± 0.02	3.06 ± 0.02
12G	2.40 ± 0.02	2.75 ± 0.02
13G	1.99 ± 0.02	2.41 ± 0.02
14G	1.69 ± 0.02	2.11 ± 0.02
15G	1.45 ± 0.02	1.81 ± 0.02
16G	1.25 ± 0.02	1.61 ± 0.02
17G	1.12 ± 0.02	1.48 ± 0.02
18G	0.91 ± 0.02	1.26 ± 0.02
19G	0.72 ± 0.02	1.06 ± 0.02
20G	0.62 ± 0.02	0.90 ± 0.02
21G	0.51 ± 0.02	0.81 ± 0.02
22G	0.41 ± 0.02	0.71 ± 0.02
23G	0.33 ± 0.02	0.63 ± 0.02
24G	0.31 ± 0.02	0.55 ± 0.02
25G	0.26 ± 0.02	0.51 ± 0.02
26G	0.23 ± 0.02	0.45 ± 0.02
27G	0.19 ± 0.02	0.41 ± 0.02
28G	0.17 ± 0.02	0.35 ± 0.02
30G	0.13 ± 0.02	0.31 ± 0.02
31G	0.12 ± 0.02	0.26 ± 0.02

Configurations & sample

The circular head is shown mounted in different orientations. The rectangular arrays below are additional configurations illustrated in the product documentation.

Circular head viewed from the needle side

Core-shell and hollow fiber research

Coaxial processing brings materials with different properties together in one structure. Applications described for this spinneret include core-shell nanofibers, hollow nanofibers and nanoparticles. The image shows a hollow fiber cross-section.

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