SUZHOU POLESTAR METAL PRODUCTS CO., LTD
Your One-Stop Precision Metal Fabrication Solution - Cut, Shape, Weld, Assembly
Add to Cart
Stainless Steel SUS400 CNC Machining Parts For Semiconductor Testing Equipment
Product Overview:
This product is made of martensitic stainless steel SUS400, through high-precision CNC machining technology, designed for semiconductor test equipment (such as probe stations, sorting machines, test sockets, etc.) designed for precision structural components. With high hardness, corrosion resistance, low particle precipitation and other characteristics, to meet the semiconductor test environment on the material stability and cleanliness of the stringent requirements.
Product Details
| CNC Machining Aspect | Specific Application in Semiconductor Testing Equipment Parts | Technical Details & Benefits |
| Material Machining | Machining SUS400 series stainless steel (e.g., SUS410, SUS430) for components like probe holders, microfluidic fixtures, and sensor mounts. | - High hardness (170–210 HB) of SUS400 requires carbide or ceramic tooling. - Coolant-controlled machining prevents work-hardening and thermal distortion. |
| Precision Geometry | Creating complex internal features (e.g., micro-channels, probe slots, threaded holes) and ultra-fine external profiles. | - Tolerances as tight as ±0.005 mm for critical dimensions (e.g., probe alignment holes). - Five-axis CNC enables multi-angle machining without re-clamping. |
| Surface Finish Optimization | Achieving mirror polish (Ra ≤ 0.2 μm) on fluid contact surfaces and low-roughness exteriors to minimize particle adhesion. | - Diamond-tipped end mills for finish machining. - Electrolytic polishing (EP) post-CNC to refine surface texture and meet ISO 14644-1 Class 5 cleanliness standards. |
Core features
High precision machining
Tolerance up to ±0.005mm to meet the stringent assembly requirements of semiconductor test equipment
5-axis CNC machining ensures precise moulding of complex geometries (e.g. microvias, precision slots).
Excellent material performance
SUS400 stainless steel (12-14% chromium content), both:
Hardness HRC 28-35 (adjustable by heat treatment)
Chemical resistance (weak acid/alkaline environments)
Magnetically conductive (suitable for electromagnetic shielding applications)
Customisation Service
Support Drawing/OEM OEM, offer:
Special surface treatment (passivation, mirror polishing)
Rapid prototyping of small quantities (5-7 days delivery)
Typical Application Scenarios
- Probe card frames and calibrators
- Test Socket Metal Housing
- Wafer Suction Cup Positioning Assemblies
- Sorting machine wear guides
Why consider us?
No mold fees for aluminum profiles – We absorb these costs to reduce your expenses.
No welding fixture charges – Another way we help you save.
Combing different Producing Technology – Outsource Aluminium Profile, Shaped Metal, Metal Casting materials, MIM materials, then CNC machining to lower the unit price.
Cost-competitive production – Our lean manufacturing and expertise allow us to deliver high-quality parts at favorable prices.
One-Stop Factory – Our ISO9001 IATF16949 Certificated factory provide laser cutting, bending, Stamping, CNC Machining, Sheet Metal Working, welding, Assembling in one factory, ensure stable quality control.
