High-Precision CNC Machined Aluminum, Steel & Stainless Steel Parts with Nickel/Chrome Plating. Support Prototype & Low-Volume Orders (1-Piece Minimum).
Zhejiang Zhengna Technology Co., Ltd. is a leading ISO 9001:2015 & IATF 16949 certified contract manufacturer specializing in high-precision CNC machined components for automated assembly systems, robotics, and industrial machinery. We support prototype development and low-volume production with a 1-piece minimum order quantity, providing unparalleled flexibility for engineers and designers.
In the world of automation, precision, reliability, and timely delivery are non-negotiable. Our CNC machining services are tailored to meet the stringent demands of automated equipment, ensuring seamless integration, long service life, and optimal performance. We combine advanced manufacturing technology with rigorous quality control to deliver parts that exceed expectations.
We work with a wide range of engineering-grade materials to suit various functional and environmental requirements of automation systems:
| Material | Common Grades | Key Properties | Typical Applications in Automation |
|---|---|---|---|
| Aluminum | 6061, 7075, 5052 | Lightweight, good strength-to-weight ratio, excellent machinability, corrosion resistance. | Robotic arm brackets, sensor mounts, conveyor components, lightweight frames, actuator housings. |
| Stainless Steel | 304, 316, 17-4 PH, 416 | High strength, superior corrosion resistance, durability, and wear resistance. | Precision shafts, lead screws, valve bodies, food-grade machinery parts, high-wear fixtures. |
| Steel (Mild & Alloy) | 1018, 1045, 4140, A36 | High tensile strength, toughness, and cost-effectiveness for structural components. | Heavy-duty machine bases, gear blanks, structural supports, brackets, and tooling plates. |
To improve functionality, appearance, and longevity, we offer professional surface treatments:
Our workshop is equipped with state-of-the-art 3-axis, 4-axis, and 5-axis CNC milling centers and CNC turning lathes. This allows us to manufacture complex geometries with tight tolerances (typically down to ±0.01mm or ±0.0004"). We handle everything from simple brackets to intricate multi-axis components for sophisticated automation equipment.
Our modern CNC machining workshop, equipped with multi-axis milling and turning centers for high-precision part manufacturing.
Quality is embedded in every step of our process. Our quality control lab is equipped with precision measuring instruments, including Coordinate Measuring Machines (CMM), optical comparators, and surface roughness testers. Every custom machined part is inspected against your drawing specifications to ensure perfect fit and function in your automated assembly system.
Our custom machined parts are integral to the success of various advanced systems:
We accept all major 2D and 3D file formats. For the most accurate quote, please provide: 2D Drawings: PDF, DWG, DXF (with complete dimensions, tolerances, material, and finish callouts). 3D Models: STEP, IGES, SLDPRT, X_T, CATPart. 3D files help us understand complex geometries better.
Our standard machining tolerance is ±0.1 mm (±0.004 inches). For critical features, we can achieve much tighter tolerances, down to ±0.01 mm (±0.0004 inches) or even finer, depending on the part geometry and material. Please specify all critical tolerances on your drawing.
Yes, absolutely. We specialize in prototype and low-volume production. A 1-piece MOQ is standard for us, making us an ideal partner for R&D, testing, pilot runs, and replacing single broken components in existing machinery.
The choice depends on your application: Choose Nickel Plating for excellent all-around corrosion protection, good wear resistance, and a bright, decorative finish. It's often more cost-effective. Choose Hard Chrome Plating when you need maximum surface hardness (for extreme wear resistance), a very low coefficient of friction, or superior release properties. It's ideal for moving parts in contact.
Lead time depends on part complexity, quantity, and current workshop schedule. For simple 1-piece prototypes, we can often deliver in 5-10 business days after order confirmation. For small batches, typical lead times range from 2-4 weeks. We provide a firm lead time with every quotation.
Yes, our engineering team provides free DFM analysis. Upon receiving your files, we will review them and suggest modifications that could reduce cost, improve strength, simplify machining, or enhance functionality—all while meeting your design intent.
Zhejiang Zhengna Technology leverages decades of manufacturing expertise to support innovation in automation. Whether you need a single prototype for testing or a small batch for pilot production, we are your reliable partner for high-quality, precision CNC machined parts.
Contact us today to discuss your project requirements and get a free, no-obligation quote. Let's build the future of automation together.
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