Description

1. Product Overview

This precision-machined brass component is a micro fluid adapter designed for panel-through tubing connections. Featuring a completely hollow internal channel, a stepped tubing end for secure push-to-connect fitting, and a precision-milled square locating block, this part is engineered to prevent rotation during assembly. It is a prime example of high-quality CNC Turning & Milling craftsmanship, widely used in industrial fluid control, inkjet printing, and lubrication systems.

At XINQIDA, we specialize in manufacturing custom CNC machined parts with tight tolerances, offering cost-effective solutions for complex geometries like this brass fitting.

2. CNC Machining Services Specification Table

Below is the standard technical specification we adhere to for this component. We accept custom modifications based on your engineering drawings (STEP/IGES/DWG).

3. Material Analysis: Why Brass?

Choosing the right material is critical for micro fluid connectors. Brass (C36000 or equivalent) is the preferred choice for this component due to the following properties:

• Excellent Machinability: Brass has one of the highest machinability ratings among copper alloys. Its low friction coefficient allows for high-speed CNC turning, excellent surface finish, and extended tool life, reducing production costs for complex stepped parts.

• Corrosion Resistance: Naturally resistant to moisture, water, and mild chemicals, making it ideal for ink, lubricating oil, and air transmission.

• Non-Sparking & Malleable: Brass is softer than steel, which prevents it from damaging the delicate PU or silicone tubing inserted into the stepped end.

• Cost-Effective: For precision micro-components, brass provides a perfect balance between mechanical strength and affordability.

4. Application Scenarios

Thanks to its specific “locating square block” and hollow design, this fitting is custom-tailored for the following industries:

• Industrial Inkjet Printing & Coding: Used as an ink tube connector inside printheads and ink pumps. The square block prevents the fitting from twisting while the machine vibrates.

• CNC Machine Tool Lubrication Systems: Acts as a micro oil distributor nozzle, transporting lubricating oil from the pump to the guideways.

• Micro Pneumatic Automation: Used as a miniature air tube joint for small pneumatic cylinders and vacuum grippers in automated assembly lines.

• Medical & Laboratory Analytical Instruments: Fluid transfer adapter for mild reagents or gas in precise diagnostic equipment (pending cleanliness level requirements).

5. Precision & Tolerance Capabilities

As a professional CNC machining service provider, we ensure the following precision capabilities for this brass fitting:

• Concentricity: We achieve extreme concentricity between the central hollow hole and the outer stepped tubing end. This ensures the fluid flows straight without turbulence, maintained within 0.03mm TIR.

• Square Block Accuracy: The square block’s angular orientation is controlled within ±0.05° to ensure proper alignment when installed in the equipment’s rectangular slot.

• Surface Roughness: The stepped end is machined to a fine finish (Ra ≤ 1.6 μm) to guarantee a smooth, leak-free interface with rubber or plastic tubing.

  View our complete tolerance standards for all machined components via our CNC Machining Tolerances Guide.

6. Manufacturing Challenges & Our Solutions

Producing this specific part requires overcoming several typical CNC machining hurdles. Here is how we solve them:

7. Frequently Asked Questions (FAQ)

Q1: Do you require a 3D drawing to start production?
A: Yes, we prefer 3D files (STEP/IGES) and 2D PDF drawings with tolerances. However, if you don’t have a drawing, our engineering team can perform reverse engineering and create a blueprint based on your sample.

Q2: What is the typical lead time for a custom brass fitting like this?
A: For prototypes (1-10 pieces), we offer a 5-7 working days turnaround. For mass production (1,000+ pcs), the lead time is typically 15-20 working days, depending on the order quantity.

Q3: Do you offer surface plating or coating options?
A: Yes. While the “as-machined” brass finish is standard, we offer electroless nickel plating, chrome plating, or passivation to enhance corrosion resistance and aesthetics if required by your specific fluid medium.

Q4: Can you offer a free sample before mass production?
A: Absolutely. After confirming the design and quotation, we can provide one or two samples for your functional testing. The sample fee is fully refundable upon placing the mass production order.