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Welcome to Henan San Kuang Machinery Technology Co., Ltd. — your trusted partner for high-precision custom CNC machining solutions. Established in 2022, we have rapidly grown into a reliable manufacturer with a factory area of 10,000–30,000 square meters, employing 51–100 skilled professionals. Our annual export value exceeds US$2.5 million, serving markets across North America, South America, Europe, Southeast Asia, Africa, and Oceania. We specialize in producing Custom CNC Machining 304 Stainless Steel Parts with ±0.01mm Tolerance, delivering components that meet the most demanding requirements in automotive, aerospace, medical, and industrial sectors. Our commitment to quality, precision, and customer satisfaction makes us your ideal supplier for critical stainless steel parts.
Product Overview: Our 304 stainless steel CNC machined parts are manufactured using advanced multi-axis CNC lathes, milling machines, and drilling centers. Each part is crafted to achieve tolerances as tight as ±0.01mm, ensuring consistent quality and interchangeability. Whether you need complex geometries, threaded holes, or fine surface finishes, we have the capability to produce them with repeatable accuracy. We work with your drawings (PDF, STEP, IGES, DXF, etc.) or samples to create parts that fit your exact specifications. Below are the key features and benefits:
- High Precision: Achieve ±0.01mm tolerance on critical dimensions, suitable for tight-fitting assemblies.
- Material Excellence: 304 stainless steel offers excellent corrosion resistance, strength, and hygiene, ideal for food-grade, medical, and marine environments.
- Versatile Capabilities: CNC turning, milling, drilling, tapping, broaching, and grinding – all under one roof.
- Custom Finishes: Options include as-machined, bead blasted, passivated, electropolished, or powder coated.
- Rigorous Quality Control: Every part is inspected with CMM, micrometers, and go/no-go gauges; we follow ISO9001, ISO14000, and TS16949 standards.
- Cost-Effective: Competitive pricing for both prototypes and high-volume production runs.
- Fast Lead Times: Standard lead time 7–15 working days; expedited services available upon request.
| Parameter | Specification | Notes |
|---|---|---|
| Material | 304 Stainless Steel (1.4301) | Other grades (316, 303, 17-4PH) available on request |
| Tolerance | ±0.01mm (standard) | ±0.005mm achievable for specific features |
| Surface Roughness | Ra 0.8μm – 3.2μm as machined | Lower Ra (0.4μm) available with additional processes |
| Maximum Part Size | Up to 600mm (length) × 400mm (diameter) | Larger parts possible – contact us |
| Threading | Metric, UNF, UNC, BSP, NPT | Custom thread forms available |
| Heat Treatment | Annealing, stress relieving, hardening | Optional per customer requirement |
| Packaging | Bubble wrap, carton, plywood case | Export standard; custom packaging available |
Why Choose Our CNC Machining Services? Our factory is equipped with over 50 high-precision CNC machines, including 5-axis and 3-axis mills, Swiss-type lathes, and more. We employ a team of experienced engineers who use CAM software to optimize tool paths, reducing cycle times without compromising quality. Every batch undergoes dimensional inspection, material verification, and surface finish checks. We also offer free design for manufacturability (DFM) feedback to help you optimize your part for cost and performance. Our shipping ports include Shanghai, Lianyungang, Qingdao, and Tianjin, ensuring fast and reliable delivery worldwide.
Trust & Reliability: Henan San Kuang Machinery Technology Co., Ltd. is committed to long-term partnerships. We hold multiple certifications such as ISO9001, ISO14000, TS16949, OHSAS18001, and others, reflecting our dedication to quality, environment, and safety. Our annual export value of US$2.5–5 million demonstrates strong global trust. We have served clients in North America, Europe, Southeast Asia, Africa, and Oceania, with many repeat orders. Choose us for your custom CNC machining needs – we deliver precision, consistency, and value. Contact us today for a quote or to discuss your project!
Frequently Asked Questions (FAQ)
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Q1: What file formats do you accept for custom parts?
We accept 2D/3D drawings in PDF, DWG, DXF, STEP, IGES, and STP formats. If you only have a sample, we can also reverse-engineer it using our 3D scanning service (available upon request). -
Q2: Can you achieve ±0.005mm tolerance on 304 stainless steel?
Yes, for specific features and geometries, we can hold tolerances as tight as ±0.005mm. However, this may require additional machining time and cost. Please discuss your requirements with our engineering team. -
Q3: What is the typical lead time for prototypes and production runs?
Prototype orders (1–10 pcs) typically take 7–10 working days. For medium to high volume (100–10,000 pcs), lead time is 10–20 working days. Expedited services are available at an additional cost. -
Q4: Do you provide surface finishing options like passivation or electropolishing?
Absolutely. We offer bead blasting, passivation, electropolishing, powder coating, anodizing (for non-stainless materials), and more. Please specify your requirements for an accurate quote. -
Q5: How do you ensure quality for each part?
We follow a strict quality control process: incoming material inspection, in-process checks, and final inspection using CMM, micrometers, surface roughness testers, and hardness testers. We also provide a full inspection report with each shipment. -
Q6: What is the minimum order quantity (MOQ)?
There is no strict MOQ for custom parts. We accept orders as low as 1 piece for prototyping. For production orders, we recommend a minimum of 50 pieces to optimize cost per unit. -
Q7: Can you machine other stainless steel grades besides 304?
Yes, we regularly work with 303, 316, 316L, 17-4PH, 410, 430, and duplex stainless steels. We also offer a wide range of other materials including aluminum, brass, copper, titanium, and engineering plastics. -
Q8: Do you offer free samples or DFM (Design for Manufacturing) reviews?
We provide free DFM feedback and suggestions to optimize your design for cost and manufacturability. Sample parts are available at cost, but we can discount the sample fee in the first production order.
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