CNC Machining Services

Precision CNC Machining Services

At Nanjing Precision Engineering Co Ltd, our CNC machining services are engineered for high-precision manufacturing across a wide range of materials and geometries. Utilizing state-of-the-art 3-, 4-, and 5-axis CNC machines, we are capable of producing complex, tight-tolerance parts for critical applications. Whether you need rapid prototyping or full-scale production, our experienced machinists ensure reliable performance, dimensional accuracy, and consistent quality in every piece.

Stainless Steel Auger Screw

Our auger screws are engineered for durability and performance. With customizable pitch, diameter, and shaft dimensions, Our company supports a wide range of OEM and ODM applications requiring consistent material flow and minimal maintenance.

Stainless Steel Turning Parts

Using state-of-the-art CNC lathes, we produce a wide range of components such as bushings, connectors, spacers, and custom shafts for industries including automotive, medical, and industrial automation.

Stainless Steel Shafts

High-strength, wear-resistant components widely used in automotive, aerospace, and industrial machinery for rotational motion and power transmission.

Brass Fittings

CNC-turned connectors and adapters used in fluid control systems, known for their durability, machinability, and excellent sealing properties.

Your Blueprint, Our Precision

Our CNC Machining service is built on a foundation of accuracy, repeatability, and efficiency—delivering high-performance components across demanding industries. From intricate prototypes to high-volume production, we excel in machining a wide range of metals with tight tolerances and superior surface finishes. Among our most iconic parts are Stainless Steel Turning Parts known for dimensional precision, Stainless Steel Auger Screws engineered for efficient material transport, Stainless Steel Shafts crafted for critical motion and load-bearing applications, and Brass Fittings that offer excellent corrosion resistance and sealing performance. These components represent our commitment to excellence in every cut, thread, and finish.

Types of CNC Machining Services

CNC Milling Service

CNC milling is a core subtractive manufacturing method for producing highly accurate and repeatable components from metal or plastic. With advanced multi-axis capabilities, it’s perfect for fabricating complex structures, surface contours, and mechanical features to exact specifications.

CNC Drilling Service

CNC Drilling is a computer-controlled process used to create precise, repeatable holes in metal, plastic, or composite materials. Utilizing automated toolpaths, CNC drilling ensures high accuracy in hole placement, depth, and diameter—critical for components in industries such as aerospace, automotive, and electronics. This method supports both high-speed mass production and custom low-volume prototyping with tight tolerances.

5-Axis CNC Machining Service

5-axis CNC machining offers unmatched versatility and precision, allowing complex geometries to be machined in a single setup. Ideal for high-precision parts in aerospace, medical, and automotive industries, it delivers tighter tolerances, smoother finishes, and shorter lead times.

CNC Tapping Service

CNC Tapping is a high-precision threading method used to create internal threads in pre-drilled holes. It ensures repeatable, accurate thread formation in metal and plastic components, making it essential for assembly-ready parts in the automotive, aerospace, and electronic industries.

CNC Turning Service

CNC Reaming Service

CNC Turning is a subtractive machining process where a cutting tool removes material while the workpiece rotates. Ideal for producing precise cylindrical components, this process is widely used for shafts, bushings, pins, and other symmetrical parts with tight tolerances and smooth surface finishes.

CNC Reaming is a finishing technique that enlarges pre-drilled holes to a precise diameter with high concentricity and smooth finish. It’s perfect for applications requiring precision-fit holes, such as bearing housings, alignment pins, and press-fit components.

CNC Engraving Service

CNC Engraving involves controlled material removal to create permanent markings, logos, serial numbers, or technical data on metal or plastic surfaces. This service ensures high-definition detail, traceability, and branding on parts for medical, aerospace, and OEM components.

CNC Grinding Service

CNC Grinding delivers ultra-precise surface flatness, roundness, and tight dimensional tolerances by using rotating abrasive wheels. This process is crucial for hardened metals, high-performance parts, and critical surfaces, often used in tooling, molds, and high-precision assemblies.

Why Choose NJPE?

Our precision CNC machining delivers tight tolerances down to ±0.005mm, ensuring parts meet exact engineering specifications for critical mechanical and structural applications.

High Dimensional Accuracy

Complex Geometries & Multi-Axis Capability

With advanced 3-, 4-, and 5-axis CNC machines, we manufacture intricate components with complex features, undercuts, and multi-surface machining, all in a single setup.

Wide Material Compatibility

Consist Quality & Repeatability

We offer expert machining across stainless steel, aluminum, titanium, copper, brass, and engineering plastics, enabling diverse industry applications from aerospace to medical devices.

Powered by automated programming and multi-axis controls, we guarantee repeatable quality across large production runs, ideal for OEM and high-volume manufacturing.

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