High Precision Glue Dispensing Flow Nozzle

The High Precision Glue Dispensing Flow Nozzle is a specialized precision flow nozzle designed exclusively for automated glue dispensing equipment. The entire unit is integrally machined from a single block of SUS304 stainless steel. Its critical internal flow channels and micro-groove structures are processed using the MM35HP precision slow-wire EDM machine by Seibu, utilizing an ultra-fine 0.07mm wire diameter and electrical discharge cutting techniques to form the intricate micro-slots.

The primary manufacturing challenges for this product lie in its ultra-narrow micro-grooves, thin-walled sections, and micro-channel structures. During the machining process, it is essential not only to ensure dimensional accuracy but also to maintain the smoothness of internal walls, the consistency of the micro-grooves, assembly stability, and—critically—flow stability under prolonged operational conditions.

To address these intricate dispensing structures, Xincheng employs a rigorous process involving multiple trimming passes, precise compensation controls, and optimized machining parameters. This strict control over critical dimensional tolerances ensures that the product maintains stable, consistent assembly performance and precise flow control capabilities, even during mass production.

Basic Product Information

• Product Name: High Precision Glue Dispensing Flow Nozzle

• Material: SUS304 Stainless Steel

• Machining Processes: Slow-wire EDM, Precision Oil-based EDM, Micro-EDM, Precision Milling

• Machining Equipment: Seibu MM35HP (Slow-wire EDM), Sodick AP250L

• Machining Capabilities: Micro-grooves, Micro-holes, Ultra-narrow slits, Thin-walled structures, Irregular-shaped flow channels

Product Structural Features

Micro-Slot Structure

The top section of the product features an ultra-fine micro-groove structure. The requirements for groove width are extremely stringent, making it a quintessential example of a component requiring precision slow-wire EDM machining.

Conventional wire-cutting equipment often encounters issues when processing such structures—including wire breakage, corner collapse, unstable slot dimensions, rough internal surfaces, residual micro-burrs, and thermal deformation.

Consequently, the High Precision Glue Dispensing Flow Nozzle is processed exclusively using high-precision slow-wire EDM equipment throughout the entire manufacturing cycle, thereby guaranteeing consistent micro-groove widths, intact edges, and uniform flow channel transitions.

High Concentricity Requirement for Micro-Channels

A high degree of concentricity and positional accuracy must be maintained between the internal flow channel and the external micro-groove structure. If concentricity deviation is significant, the actual dispensing process is prone to the following issues:

• Dispensing offset

• Uneven dispensing

• Flow rate fluctuation

• Clogging

• Leakage

Therefore, during the manufacturing process, it is essential to simultaneously control the positional accuracy of the micro-grooves, the centering of the flow channels, parallelism, and the consistency of assembly datum points.

Control of Inner Wall Surface Finish

Although many products may meet dimensional specifications, if the internal flow channels exhibit excessively deep EDM textures, residual burrs, or adhering micro-particles, the dispensed fluid is prone to wall-adhesion, sedimentation, or even clogging during subsequent use.

Consequently, the manufacturing process places a primary focus on controlling:

• EDM energy

• Number of trimming passes

• Surface roughness

• Heat-affected zones

• Micro-burr formation

Machining Challenges for SUS304 Material

SUS304 is a typical austenitic stainless steel; while it possesses excellent corrosion resistance, it presents significant challenges in the field of micro-machining.

This is particularly true when machining ultra-fine slits, where issues such as material wire-sticking, unstable electrical discharge, heat generation during machining, micro-deformation, and dimensional drift are prone to occur.

Therefore, for products of this nature, the stability of the machining equipment and extensive process expertise are of paramount importance.

Machining Capability for Ultra-Fine Wire Diameters (0.07mm)

The core micro-groove region of our High-Precision Glue Dispensing Flow Nozzles is machined using an ultra-fine wire diameter of 0.07mm.

Compared to standard copper wires, this approach entails:

• Higher machining complexity

• A smaller electrical discharge zone

• More stringent requirements for process stability

• Tighter tolerances for wire tension control

Xincheng has long specialized in precision slow-speed wire-cut EDM; we have accumulated extensive machining expertise in the creation of micro-grooves, micro-holes, and complex, irregularly shaped slits. 

Core Product Advantages

• Micron-level dimensional control

• Stable consistency of micro-grooves

• Supports complex and irregular geometries

• Resistant to corrosion and adhesive environments

• Stable supply for mass production

• Supports custom development for non-standard parts

Applicable Industries

• Automated dispensing equipment

• Semiconductor packaging equipment

• Precision spraying equipment

• Microfluidics equipment

• Medical fluid handling equipment

• Lithium-ion battery manufacturing equipment

• Electronics packaging industry

• Precision automation equipment

Processing Capabilities at Xincheng

• Precision slow-wire EDM machining

• Precision oil-based wire cutting

• Micro-fine wire cutting

• Precision micro-hole machining

• Precision micro-groove machining

• Precision machining of irregular parts

• Machining of automation components

• Customization of non-standard precision parts

• Machining of complex, thin-walled structures

Why Do So Many Clients Place Repeat Orders?

For products such as High Precision Glue Dispensing Flow Nozzle, what clients truly care about goes far beyond mere aesthetics.

More importantly, they focus on:

• Stability once installed on the equipment

• Consistency of dispensing flow rates

• Resistance to clogging

• Uniformity across mass-produced batches

• Whether frequent machine adjustments are required during operation

Many factories can manage to "produce the part," but few can achieve "long-term stability and batch-to-batch consistency."

And this—precisely—is where the true challenge of micro-fine slow-wire EDM machining lies.

Why Choose Xincheng?

Located in Shajing, Shenzhen, Xincheng sits adjacent to the manufacturing hub of Chang'an, Dongguan.

Our company specializes in high-precision slow-wire EDM cutting and the machining of intricate micro-structures, serving the automation equipment, semiconductor, medical, electronics, and high-end equipment manufacturing sectors.

Our facility is equipped with state-of-the-art precision machinery—including the Seibu MM35HP and Sodick AP250L—enabling us to reliably machine complex micro-grooves, micro-holes, thin-walled components, and irregular geometries.

We offer custom manufacturing based on client drawings, non-standard part processing, and a stable supply chain for mass production.We welcome your inquiries!