How to choose the best needle Nozzle for liquid application | Musashi Engineering, Inc.

2024/12/27

Information on the type and selection of needle Nozzle made by Musashi Engineering is compiled.
Please use it for product selection.

Contents

Needle Nozzle Lineup Comparison Table
What is the Needle Nozzle?
How to choose a needle Nozzle
Recommended for those who want to try various Nozzle! Nozzle kit

Needle Nozzle Lineup Comparison Table

Information such as needle length, inner diameter of the needle, outer diameter of the needle, and dimensions can be found in the "Part accessories & valve/tank catalog".

	Plastic Needle	Article 2.Screw plastic needle	Metal needle	Thin-wall metal needle
Model	PN- □□ G-A PN- □□ G-B	DPN- □□ G-◇ （◇=0,1,2,3)	SNA- □□ G-B SNA- □□ G-C	SNA-0. □□ N-4L-F SNA-0. □□ N-6L-F
Appearance
Materials	Negle Base: Polyacetal Needle: Stainless steel	Negle Base: Polypropylene Needle: Stainless steel	Negle Base: Brass (Ni plated) Needle: Stainless steel	Negle Base: Brass (Ni plated) Needle: Stainless steel
Needle length	8mm(-A) 13mm(-B)	6.4mm 12.7mm 25.4mm 31.8mm 4 types of	13mm(-B) 15mm(-C)	4mm 6mm
Length specification	Not allowed	Not allowed	Allowed	Allowed
UV support	△	×	〇	〇
Anaerobic response	×	×	×	×
Applications	Standard Nozzle	2. The feeling of wearing screws Abundant needle length	Pharmaceutical resistance Length can be specified	Hard to interfere with walls and parts

	Article 2 screw Tapa Nozzle	PTFE Nozzle	PTFE Nozzle with SUS Guide	Soft needle
Model	TPND- □□ G-U	TN- □□ G TN- □□ G-U	TN- □□ G-○○L- □□ G-△△L	PPN- □□ G
Appearance
Materials	Negle Base: Polyethylene Needle: Polyethylene	Negle Base: Polyacetal Needle: Fluoropolymer	Negle Base: Polyacetal Needle: Fluoropolymer ※With SUS Guide	Negle Base: Polypropylene Needle: Polypropylene
Needle length	38.1mm (total length)	8mm	Order production with specified dimensions	35.9mm
Length specification	Not allowed	Allowed	Allowed	Not allowed
UV support	〇	〇 (-U only)	△(Response to custom orders)	×
Anaerobic response	〇	〇	〇	〇
Applications	Direction of high viscosity materials	Direction of anaerobic materials Prevention of workpiece damage	The position of the tip of Nozzle is easy to put out	Can be applied according to the workpiece

	Article 2 screw Precision Solid Nozzle	High-definition Nozzle	Sharp needle	Curve needle
Model	DSHN-M2	FN-0. □□ N FN-0. □□ ND	SPN	CPN- □□ G-A45 CPN- □□ G-B45 CPN- □□ G-A90
Appearance
Materials	Negle Base: Stainless steel Needle: Stainless steel	Negle Base: N type brass (Ni plated) ND stainless steel Needle: Non-disclosed	Negle Base: Polypropylene Needle: Stainless steel	Negle Base: Polypropylene Needle: Stainless steel
Needle length	18.25mm (total length)	Type N: 23.0mm ND type: 22.2mm Total length	Based on the nozzle diameter	12.7mm(-A) 38.1mm(-B)
Length specification	Not allowed	Not allowed	Not allowed	Not allowed (SNA bending is possible)
UV support	〇	×	×	×
Anaerobic response	×	×	×	×
Applications	Filler material is hard to get stuck Reduction of discharge time	For fine and micro-coating applications	Reducing crawling of low viscosity materials	Difficult to access Can be applied to parts

	Slit Nozzle	Multi-Nozzle	Hake Nozzle	Multi-point discharge needle
Model	-	MN	BN-S◇ (◇=1,2,3,4)	DN
Appearance
Materials	Negle Base: Stainless steel Needle: Stainless steel	Negle Base: Stainless steel Needle: Stainless steel	Hake part: Polyester fiber	Negle Base: Brass (Ni plated) Needle: Stainless steel
Needle length	ー	Order production with specified dimensions	S1,S2:(6.4mm) S3,S4:(10mm)	20mm
Length specification	Specify the width and thickness of the slit	Order production with specified dimensions	Not allowed	Allowed
UV support	〇	〇	×	〇
Anaerobic response	×	×	×	×
Applications	Surface application For coating	For multi-point discharge and surface-shaped application	For brush-painting and brush-painting applications	Multi-point discharge is possible

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What is the Needle Nozzle?

Needle Nozzle is one of the key parts for high-quality application at manufacturing sites. In order to meet a wide range of applications, such as precise liquid discharge, adhesion, and coating, there are various types and shapes, and the correct selection according to the characteristics and application of the product greatly improves the efficiency and quality of the manufacturing process.

In this article, we will explain in detail the broad lineup of Musashi Engineering's needle Nozzle and the points of selection.

※We have a needle Nozzle instead of a Nozzle needle.

How to choose a needle Nozzle

There are four key points when selecting a needle Nozzle.

Select Nozzle of the material that matches the type of liquid.
Select Nozzle with a shape that matches the viscosity of the liquid.
Select Nozzle that matches the shape of the object (workpiece) to be applied.
Select the Nozzle that is in the shape of the application.

1 Select Nozzle of the material that matches the type of liquid.

The material of the needle Nozzle is roughly classified into metal or resin. For example, if the liquid is a material that is not compatible with resins such as organic solvents, it is desirable to select a metal. On the other hand, when dealing with materials that are reactive to metal, such as anaerobic adhesives, it is necessary to select resin products.

Made of metal	Made of resin

In addition, not only the reactivity with the liquid, but also the presence or absence of permeability may be a condition for judgment. When using UV-curing resin, which reacts and hardens with UV light, it is necessary to use needle Nozzle made of materials that do not pass UV light.

Pass through UV	Do not pass through UV

2 Select Nozzle with a shape that matches the viscosity of the liquid.

The shape of the needle Nozzle is roughly classified into straight and taper. Nozzle, which has a straight shape, generally has a pipe shape with a certain length, has a high pipe resistance and the high viscosity liquid is difficult to flow, but the low viscosity liquid is less likely to drain. On the other hand, Nozzle, which has a taper shape, has a small resistance during liquid dispensing and excellent fluidity, is suitable for expelling highly viscosity materials in a short time.

Straight shape	Tapa shape

Low viscosity material is hard to drain.	High viscosity materials are easily discharged

3 Select the Nozzle that matches the shape of the object (workpiece) to be applied.

Depending on the shape of the workpiece, the selection point is whether Nozzle can access the place it wants to apply. For example, if a taper shape interferes with the thick part, we use a straight-shaped Nozzle or a product with a long needle tip. Depending on workability, a resin Nozzle that is hard to damage the workpiece may be suitable. There is also a lineup of bent Nozzle that can penetrate narrow areas.

4 Select the Nozzle that is in the shape of the application.

In many adhesive processes, dot and line application shapes are used, but special Nozzle can be used to achieve application of different shapes. A typical example is the slit Nozzle, which allows you to perform coating with a single application.

Dot dispensing Line application	Surface application	Dot dispensing

Recommended for those who want to try various Nozzle!
Nozzle kit

Please reduce these four points and select the optimal Nozzle according to your purpose. When choosing the type and size of Nozzle, we recommend the Nozzle Kit, which comes with basic Nozzle. A total of nine types of Nozzle are one. Of course, if you have any questions or concerns about the selection or application evaluation, please contact us.