Electropolished Precision CNC Components for Automotive Spare Parts

• Customization: Available
• After-sales Service: Guaranteed for One Month
• Warranty: Guaranteed for One Month
• Model NO.: Y12113
• Condition: New
• Certification: ISO9001, ISO13485
• Standard: GB
• Customized: Customized
• Material: Aluminum Alloy
• Application: Metal Processing Machinery Parts
• Appearance: Electropolishing Passivation
• Processing: CNC Milling
• Secondary Processing: Sandblasting Scale
• Transport Package: Vacuum Packaging Cardboard Box
• Specification: 300*300*260
• Trademark: yue lin sen
• Origin: Guangdong, China
• HS Code: 7301200000
• Production Capacity: 5000000 Pieces a Year
• Package Size: 30.00cm * 25.00cm * 15.00cm
• Package Gross Weight: 3.800kg

Product Description

Electropolished Precision CNC Components for Automotive Spare Parts

Product Description
304 Stainless Steel Precision Machined Automotive Components via CNC Milling offer high performance and corrosion resistance, ideal for the automotive industry. Made from premium 304 stainless steel, they combine strength, durability, and resistance to road salts, fluids, and harsh weather. Advanced CNC milling transforms solid stock into complex, close-tolerance parts like brackets, sensor housings, and fluid system components. These components are precise, reliable, and withstand both everyday and high-performance automotive applications.

Product Processing
Material Verification & Preparation: Certified 304 stainless steel is selected, verified, and cut to optimized blank sizes to minimize waste.
Advanced Fixturing & Setup: Workpiece is secured using precision vises, fixtures, or hydraulic clamps on 3, 4, or 5-axis CNC centers, accommodating higher cutting forces and ensuring feature access.
High-Performance CNC Milling (Core Process): Using optimized CAM programming, the machine performs stainless steel operations.

Aggressive Roughing: Trochoidal and adaptive toolpaths maintain chip load, manage heat, and extend tool life.
Precision Finishing: Fine passes with sharp tooling achieve tight tolerances (±0.0125mm) and excellent finishes.
Feature Machining: Creating complex 3D contours, pockets, bosses, ribs, drilled/tapped holes, and grooves.
In-Process Probing & Quality Control: On-machine probes verify features mid-process for tool wear compensation and dimensional accuracy.

Material	Primary Grade	304 Stainless Steel(AISI 304, UNS S30400, EN 1.4301)
	Key Properties	Excellent corrosion resistance, good formability, high strength, non-magnetic (annealed).
	Condition	Annealed (for optimal machinability) or Cold Drawn.
Mechanical Properties	Tensile Strength	≥ 515 MPa (75,000 psi)
	Yield Strength (0.2% Offset)	≥ 205 MPa (30,000 psi)
	Elongation	≥ 40%
	Hardness (Annealed)	≤ 92 HRB
	Density	8.0 g/cm³
Machining Capabilities	Primary Process	3-Axis, 4-Axis, and 5-Axis Simultaneous CNC Milling
	Key Strategy	High-Efficiency Milling (HEM) with trochoidal toolpaths for stainless steel.
	Surface Finish (As-Milled)	Standard:Ra 1.6 µm.Precision:Ra 0.8 µm.
Dimensional Capacity	Maximum Part Size	Up to 1500 x 800 x 600 mm (dependent on machine).
	Maximum Weight	Up to 300 kg (fixture dependent).
Precision & Tolerances	Standard Tolerance	±0.025 mm (±0.001")
	Precision Tolerance	±0.0125 mm (±0.0005")
	Hole Tolerance	H7 (drilled) to H6 (reamed/bored).
	Geometric Tolerances	Flatness, parallelism, true position per ASME Y14.5 / ISO 1101.
Threading Capabilities	Thread Types	Metric (M2 - M30), UNF/UNC (#2 - 1"), NPT (1/8" - 1"), BSPP, BSPT, custom.
	Thread Milling	Preferred for precision and quality in stainless steel.
Surface Treatments	Passivation	ASTM A967(Nitric or Citric Acid) - standard for corrosion enhancement.
	Electropolishing	For ultra-smooth, bright, and cleanable surfaces.
	Mechanical Finishes	Bead Blasting, Brush Finish, Mirror Polish.
	Other Finishes	Powder Coating, PVD Coating (e.g., TiN, DLC) available.
Quality Assurance	Inspection Equipment	CMM (Coordinate Measuring Machine), Optical Comparator, Surface Roughness Tester, Thread Gauges, Hardness Tester.
	Material Certification	Mill Test Certificate (MTC) per EN 10204 3.1 provided.
	Documentation	First Article Inspection (FAI) Report per AS9102, Dimensional Summary Report, Certificate of Conformance.
Production Details	Lead Time (Prototype)	5-12 business days.
	Lead Time (Production)	2-6 weeks (volume dependent).
	File Formats Accepted	STEP, IGES, SLDPRT, X_T, DWG, DXF.
Secondary Services	Assembly	Press-fit inserts, fasteners, welding, marking.
	Testing	Dimensional validation, pressure testing for fluid components (hydrostatic or pneumatic).

Company Profile

Dongguan Yu Lin Sen Metal Technology Co., Ltd.: Has obtained theGB/T 19001-2016/ISO 9001:2015 quality system certification, as well as the GB/T42061-2022/ISO 13485:2016 medical device quality system certification. Focuses on the research and production of non-standard metal medical device precision parts, mainly as machined metal products. It possesses dozens of high-precision engra-ving lathes and CNCequipment,including CNC numerical control, numerical control centering machine, automatic lathes, turningmilling combined machines, precision laser cutting processing of stainless steel capillary tubes and stainless steel thin-walled tubes for sec-ondary processing. Main materials: stainless steel tubes, stainless steel, copper, aluminum alloy, etc. for non-standard processing and customization. Widely applied in tools, electronics, electrical appliances, medical devices, automotive parts, transportation, and other industries. The company has been recognized by the industry for its "quality-oriented, honest operation" philosophy, mainly providing
non-standard part prototyping and batch production processing, supporting custom drawings and sample customization, etc. The process flow is stable and efficient, integrating industry and trade for rapid delivery, with craftsmanship spirit ensuring quality, without middlemen, excellent value for money, and the company adheres to the business philosophy of "customer first, quality first, striving for excellence, win-win cooperation", "Confident and reliable after-sales guarantee!!!".

Product Advantage

It has obtained the quality system certification in accordance with GB/T 19001-2016/ISO 9001:2015, as well as the medical device quality system certification in accordance withGB/T 42061-2022/ISO13485:2016. We focus on processing and customizing products for medical device hardware, and we have dozens of precision CNC lathes and precision laser cutting processing equipment. We also have a R&D team composed of senior engineers and technicians. We are committed to providing customers with high-quality and
high-precision processing and customization services for hardware parts, ensuring that each product meets the strict standards and requirements of the medical device industry. Through continuous optimization of production processes and improvement of technical levels, we can meet the diverse needs of customers and contribute to the development of the medical device industry.

Certifications