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Help CenterPrecision Machining and Custom Mechanical Processing With 0.02mm Tolerance and Surface Roughness Ra0.8
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Henan San Kuang Machinery Technology Co., Ltd., established in 2014 and located in Luoyang, Henan, China, is a trusted manufacturer specializing in precision machining and custom mechanical processing. With a factory area spanning 10,000–30,000 square meters and a dedicated team of 51–100 skilled employees, we deliver components that meet the most demanding specifications. Our ability to achieve tolerances as tight as ±0.02mm and surface roughness as low as Ra0.8 sets us apart in the B2B market, ensuring that your critical parts perform reliably in high-stakes applications. Whether you need prototypes, small batches, or large production runs, we combine state-of-the-art equipment with rigorous quality control to provide consistent, high-precision results.
Our comprehensive machining capabilities cover a wide range of processes, including CNC milling, turning, grinding, drilling, and EDM. We work with various materials such as steel, aluminum, stainless steel, brass, and titanium, and we can accommodate custom material requirements. Below is a summary of our key technical specifications:
| Parameter | Capability |
|---|---|
| Dimensional Tolerance | ±0.02mm (standard); ±0.005mm achievable on request |
| Surface Roughness | Ra0.8 (standard); down to Ra0.2 available |
| Maximum Part Size | Up to 2000mm × 1000mm × 800mm (customizable) |
| Repeatability | ±0.01mm |
| Inspection Equipment | CMM, Optical Projector, Surface Roughness Tester, Micrometers, Gauge Blocks |
Key Features & Benefits:
High Precision: Our ±0.02mm tolerance ensures that every part fits perfectly in your assembly, reducing rework and waste.
Excellent Surface Finish: Ra0.8 surface roughness minimizes friction, improves wear resistance, and enhances aesthetic appearance for visible components.
Material Versatility: We process a wide range of metals and alloys, including hardened steels, aluminum, copper, and exotic materials like Inconel and titanium.
Customization: From simple geometries to complex multi-axis contours, we can produce parts according to your drawings or 3D models.
Quality Assurance: Every order undergoes a multi-stage inspection process using calibrated metrology equipment, ensuring compliance with your specifications.
Cost Efficiency: Our optimized production processes and in-house capabilities reduce lead times and lower total cost of ownership.
Scalability: We support both prototyping and mass production with consistent quality, thanks to our standardized procedures and experienced workforce.
Industries Served: Our precision machined components are widely used in automotive, aerospace, medical devices, industrial automation, electronics, and energy sectors. We have shipped products to North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East, demonstrating our global reach and reliability.
Trusted by Clients Worldwide: With over 10 years of experience, an annual export value of US$2.5–5 million, and a factory size of 10,000–30,000 sqm, Henan San Kuang Machinery Technology Co., Ltd. is your reliable partner for precision machining. We hold multiple certifications including ISO9001, ISO14000, OHSAS18001, HACCP, SA8000, and many more, reflecting our commitment to quality, safety, and environmental responsibility. Our main ports of shipment (Shanghai, Lianyungang, Qingdao, Tianjin) ensure efficient logistics to any destination.
We invite you to experience our precision machining services. Contact us today with your drawings or requirements, and we will provide a competitive quote and sample parts for evaluation. Let us help you achieve the highest quality standards for your mechanical components.
Frequently Asked Questions
Q: What is the minimum order quantity (MOQ) for custom precision machining?
A: Our MOQ is flexible—we accept orders starting from 1 piece for prototypes. For mass production, MOQ can be discussed based on part complexity and material.Q: Can you achieve tolerances tighter than ±0.02mm?
A: Yes, we can achieve tolerances as tight as ±0.005mm for certain geometries and materials. Please provide your specific requirements for feasibility assessment.Q: What file formats do you accept for drawings?
A: We accept STEP, IGES, STL, DXF, DWG, PDF, and 3D models (SolidWorks, AutoCAD, etc.). Please include all critical dimensions, tolerances, and surface finish notes.Q: How do you ensure quality control during production?
A: We follow a strict quality management system with in-process inspections, first-article inspection, and final inspection using CMM, surface roughness testers, and other calibrated instruments. Inspection reports are available upon request.Q: What is the typical lead time for a custom part?
A: Standard lead time is 15–30 working days after order confirmation and drawing approval. Rush orders may be accommodated for an additional fee.Q: Do you offer surface finishing treatments like anodizing, plating, or polishing?
A: Yes, we can provide various secondary finishing services including anodizing, passivation, zinc plating, nickel plating, powder coating, and hand polishing. Please specify your requirements.Q: Can you handle large parts or heavy components?
A: Our machines can accommodate parts up to 2000mm × 1000mm × 800mm. For larger parts, we can discuss alternative solutions or multi-piece assembly.Q: What certifications do you have for quality and environmental management?
A: We are certified to ISO9001, ISO14000, OHSAS18001, and many other standards (HACCP, SA8000, TL900, QS9000, etc.). Our certifications are available for review upon request.
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