Product Name	Precision Inkjet Needle
Material	SUS304 / SUS316L Stainless Steel
Manufacturing Process	CNC Precision Machining
Outer Diameter	Customized
Inner Diameter	Customized
Length	Customized
Tip Type	Sharp Tip / Customized
Connection Type	Threaded / Customized
Surface Finish	Polished
Application	Inkjet Printing, Coding & Marking, Fluid Dispensing Systems

Key Features

High Precision Machining
Manufactured with advanced CNC machining technology to ensure excellent dimensional accuracy and consistent performance.

Premium Stainless Steel
Made from high-quality SUS304 or SUS316L stainless steel for outstanding corrosion resistance and long service life.

Reliable Fluid Delivery
The precision-polished inner bore provides smooth ink flow, helping maintain stable and consistent printing performance.

Secure Threaded Connection
Features a precision-machined threaded base for reliable installation, stable sealing, and easy integration with various inkjet systems.

Custom Manufacturing
Available in customized dimensions, thread specifications, tip geometries, and surface finishes to meet different application requirements.

FAQ

1. Leak-proof Performance
Q: Do you guarantee the needle is leak-proof?

A: Yes. Leak resistance is one of the key features of our inkjet needles. Each needle undergoes strict airtightness testing before shipment, including a high-pressure air pressure decay test. Additional leak inspection can also be provided upon request. The precision-machined tube and laser-welded joint help ensure reliable sealing performance, minimizing ink leakage, backflow, and air intrusion during operation.

2. Strength of the Thin Needle
Q: The needle has an OD of only 1.6 mm and an ID of 1.2 mm. Is it easy to bend or break?

A: No. Although the needle has a very thin wall, it is manufactured from high-quality stainless steel and processed with precision heat treatment and strengthening technology. It offers excellent toughness and fatigue resistance, making it suitable for continuous industrial applications while maintaining dimensional stability.
3. Dimensional Accuracy

Q: What are the dimensional tolerances?

A: We maintain tight machining tolerances to ensure consistent performance. Typical tolerances are ±0.01 mm for the outer diameter and ±0.02 mm for the inner diameter. The inner bore is precision polished and deburred to provide smooth fluid flow and reduce the risk of clogging.
4. Welding Strength

Q: Are the welded joints reliable?

A: Yes. The needle tube is permanently joined to the base using high-precision laser welding technology, creating a strong and durable connection. Every welded assembly is inspected before shipment to ensure mechanical strength and sealing performance suitable for industrial inkjet applications.
5. Stainless Steel Material

Q: What stainless steel do you use? Will it rust?

A: Standard materials include SUS304 and SUS316L stainless steel, selected according to application requirements. These materials offer excellent corrosion resistance and durability under normal industrial operating conditions. Other materials are available for special applications upon request.

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