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Help CenterPrecision CNC Machined Casting Parts in 304 Stainless Steel for Industrial Applications
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Henan San Kuang Machinery Technology Co., Ltd. has been a trusted manufacturer of precision CNC machined casting parts in 304 stainless steel since 2014. With a factory spanning 10,000-30,000 square meters and an annual export value of US$2.5-5 million, we deliver components that meet the highest industrial standards. Our parts combine the dimensional accuracy of CNC machining with the complexity of investment casting, providing a cost-effective solution for demanding applications.
Every casting part is produced from premium 304 stainless steel, known for its excellent corrosion resistance, weldability, and formability. Our CNC machining centers (5-axis and 3-axis) ensure tight tolerances down to ±0.01mm, while our in-house quality lab validates every batch. Whether you need valve bodies, pump impellers, or custom machinery components, we have the capability to produce complex geometries with smooth surface finishes.
Key Features & Technical Specifications
- Material: 304 (1.4301) stainless steel – low carbon variant available upon request.
- Casting Process: Investment casting (lost wax) – provides near-net shape, reducing machining time.
- CNC Machining: Turning, milling, drilling, tapping – achieves final tolerances and surface quality.
- Heat Treatment: Optional solution annealing or stress relieving to enhance mechanical properties.
- Surface Finishing: Options include passivation, electropolishing, powder coating, or glass bead blasting.
- Quality Control: 100% dimensional inspection, pressure testing (if applicable), and metallographic analysis.
- Packaging: Individual wrapping, foam inserts, wooden crates for export – ensures damage-free shipping.
| Parameter | Value |
|---|---|
| Density | 7.93 g/cm³ |
| Yield Strength (0.2% offset) | ≥205 MPa (annealed) |
| Tensile Strength | ≥515 MPa |
| Elongation | ≥40% |
| Hardness (Brinell) | HB 187-229 |
| Standard Machining Tolerance | ISO 2768-m or better (±0.01mm on critical features) |
Advantages for Your Business
- Reduced Total Cost: Near-net-shape casting minimizes material waste and shortens machining cycles.
- Corrosion Resistance: 304 stainless steel ensures long service life in harsh industrial environments.
- Design Flexibility: Complex internal cavities, thin walls, and undercuts are achievable through investment casting.
- Consistent Quality: Our ISO9001 and ISO14000 certified processes guarantee repeatability from prototype to mass production.
- Fast Lead Times: With 51-100 skilled employees and modern equipment, we deliver most orders within 30-45 days.
As a factory with multiple certifications including HACCP, TL900, QS9000, SA8000, OHSAS18001 and more, Henan San Kuang Machinery Technology Co., Ltd. is fully equipped to serve North America, Europe, Asia, and beyond. We ship from the ports of Shanghai, Lianyungang, Qingdao, and Tianjin. Our team is ready to provide engineering support, free samples for evaluation, and competitive pricing for both standard and custom designs.
Frequently Asked Questions (FAQ)
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Q: What is the typical lead time for precision CNC machined casting parts?
A: For existing tooling, lead time is 20-30 days. For new tooling (molds), it takes 35-50 days depending on complexity. We can expedite upon request. -
Q: Can you produce parts with tight tolerances like ±0.005mm?
A: Standard tolerance is ±0.01mm. Tighter tolerances (±0.005mm) are achievable with additional fine machining steps and may affect cost. -
Q: Do you provide surface finishing services such as passivation or electropolishing?
A: Yes, we offer various finishes. Passivation and electropolishing are common for 304 stainless steel to enhance corrosion resistance. -
Q: What is the minimum order quantity (MOQ)?
A: MOQ is 50 pcs for existing tooling parts. For custom parts, MOQ can be discussed based on mold cost. -
Q: How do you ensure quality control?
A: We implement 100% dimensional inspection using CMM, optical comparators, and go/no-go gauges. Material certificates from the mill are provided. -
Q: Are the parts suitable for food industry applications?
A: 304 stainless steel is food-grade. We can offer surface finishes compliant with FDA requirements. HACCP certified plant is available. -
Q: Can you handle large parts over 500 kg?
A: Our casting capacity reaches up to 800 kg per piece. For heavier parts, please discuss with our engineers for alternative solutions. -
Q: Do you offer free samples?
A: Yes, we provide free samples for standard parts. Custom sample cost is negotiable and refundable with bulk orders.
Backed by an annual export value of US$2.5-5 million and serving 13+ global markets, Henan San Kuang Machinery Technology Co., Ltd. is your reliable partner for industrial precision components. Contact us today to discuss your project requirements – we guarantee fast quotation, technical support, and on-time delivery.
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