CNC Machined Helium Leak Connector
Key Features
- 100% Helium Leak Tested
Every connector is inspected using helium mass spectrometry to achieve a leak rate of ≤1×10⁻⁸ mbar·L/s, ensuring dependable sealing performance.
- High-Precision CNC Machining
Precision CNC turning and milling produce accurate threads, sealing faces, and critical dimensions with tolerances up to ±0.005 mm.
- Premium 316L Stainless Steel
Excellent corrosion resistance, low outgassing characteristics, and outstanding mechanical strength make it suitable for vacuum and ultra-clean environments.
- Superior Surface Finish
Standard surface roughness reaches Ra 0.4 μm, with optional passivation or electropolishing available for enhanced cleanliness.
- Customized Manufacturing
Support for ISO, BSP, NPT, and customized thread standards, as well as custom dimensions, port designs, and surface treatments.
Technical Specifications
|
Parameter |
Specification |
|
Material |
316L Stainless Steel (AISI 316L) |
|
Manufacturing Process |
CNC Turning & CNC Milling |
|
Dimensional Tolerance |
±0.01 mm |
|
Surface Finish |
Ra 0.4 μm (Optional Passivation) |
|
Helium Leak Rate |
≤1×10⁻⁸ mbar·L/s |
|
Working Pressure |
Up to 3.0 MPa |
|
Pressure Test |
4.5 MPa |
|
Thread Standards |
ISO, BSP, NPT or Customized |
|
Prototype Lead Time |
3–5 Days |
|
Production Lead Time |
2–3 Weeks |
Applications
The CNC Machined Helium Leak Connector is suitable for a wide range of industries requiring precision sealing and leak-free connections.
- Semiconductor manufacturing equipment
- Vacuum chambers and vacuum pumps
- Mass spectrometry systems
- Scientific laboratory instruments
- Aerospace and satellite equipment
- Cryogenic systems
- High-purity gas delivery systems
- Medical and analytical equipment
- Industrial automation
- Precision fluid control systems

Quality Assurance
Quality control is integrated into every production stage. Raw materials are fully traceable and verified before machining. During production, critical dimensions are inspected using CMM equipment, while surface finish and thread accuracy are carefully monitored.
Before delivery, every connector receives:
- Dimensional Inspection
- Pressure Test
- Surface Quality Inspection
- Material Certificate (MTC)
- Inspection Report upon request
This comprehensive inspection process ensures reliable sealing performance and consistent product quality.
Packaging & Delivery
Each connector is individually packed in clean anti-static packaging to prevent contamination during transportation. Bulk orders are protected with foam inserts, moisture-proof materials, and durable export cartons or wooden crates.
Shipping methods include express courier, air freight, sea freight, and railway transportation according to customer requirements.
OEM & Custom Manufacturing
We specialize in manufacturing custom precision metal components based on customer drawings or samples.
Our services include:
- OEM & ODM Manufacturing
- Drawing Optimization (DfM)
- Rapid Prototype Production
- Custom Materials and Surface Treatments
- Small Batch and Mass Production
- Complete Quality Documentation
- Technical Support Throughout the Project
FAQ
|
Q1: |
What is your minimum order quantity? |
|
A1: |
Standard MOQ is 100 pieces for custom production, while prototype quantities from 1–10 pieces are available for sample verification. |
|
Q2: |
Can you manufacture according to our drawings? |
|
A2: |
Yes. We produce fully customized parts based on 2D drawings, 3D models, or physical samples. |
|
Q3: |
Which inspections are performed? |
|
A3: |
Every connector undergoes helium leak testing, pressure testing, dimensional inspection, and appearance inspection before shipment. |
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