Precision CNC Grinding Services
At SelenPreci, our advanced CNC grinding equipment and experienced machining technicians deliver high-precision custom ground parts with tight dimensional tolerances and premium surface finish.
As a one-stop CNC machining manufacturer in Shenzhen, we offer reliable surface grinding and cylindrical grinding services for prototype, small batch and mass production projects.
Our CNC Grinding Capabilities
We provide two core precision grinding processes to meet diverse custom component requirements, compatible with multiple metal and hard machining materials.
Surface Grinding
Surface grinding creates flat, smooth and parallel surfaces for precision components. A rotating abrasive grinding wheel removes material from workpieces to achieve ultra-flat surfaces and tight tolerances. This process is widely used for manufacturing tool steel plates, fixture components and flat mechanical parts requiring superior flatness.
Cylindrical Grinding
Cylindrical grinding refines outer diameters of cylindrical or shaft-type workpieces. While the part rotates, the grinding wheel feeds along the part length to remove material. It is ideal for precision shafts, pins and rotary components that demand perfect roundness and excellent surface finish.
CNC Grinding Equipment & Workshop
Our CNC grinding workshop is equipped with precision grinding machines and operated by experienced technicians. The production area supports machining and finishing for custom components with specific dimensional and surface quality requirements.
At SelenPreci, we maintain an organized production environment and select machining processes based on each part's design and technical specifications. Our equipment supports precision manufacturing and consistent quality.
Advantages of CNC Grinding
CNC grinding delivers micron-level precision and consistent surface quality for high-performance parts. Combined with our machining capabilities, it supports efficient, high-quality custom manufacturing.
Exceptional Dimensional Accuracy
We hold tight tolerances down to ±0.001mm. Supported by multi-axis CNC grinding machines and real-time inspection, we meet strict dimensional requirements for critical precision parts.
Superior Repeatability for Batch Production
Stable processing parameters ensure consistent quality across all workpieces, from prototype runs to large-volume batches. Less scrap and rework help control manufacturing costs.
Outstanding Surface Finish
Our CNC grinding achieves surface roughness up to Ra 0.2 μm with a mirror finish. Ideal for sealing parts, low-friction moving components, and mating interfaces needing ultra-smooth surfaces.
Wide Material & Shape Flexibility
Our grinding service handles complex geometries and hard-to-machine materials, including aluminum, stainless steel, tool steel, superalloys and ceramics. We adapt to your custom part drawings.
Seamless Integration With Other Processes
CNC grinding can work with our in-house CNC milling, CNC turning, mill-turn and WEDM services. It serves as final finishing step within our one-stop manufacturing workflow.
Ideal For High-precision Industries
Our precision ground components serve aerospace, medical equipment, automation and optical industries. We follow strict quality standards for reliable, high-performance parts.
Precision Inspection for CNC Ground Parts
We check critical dimensions, flatness, and surface roughness to verify the quality of precision-ground components.
▪ Dimensional and flatness checks
▪ Surface roughness measurement
▪ Precision tolerance verification
Why Choose SelenPreci for CNC Grinding
CNC Grinding Services FAQ
We can reach tolerances down to ±0.001 mm, subject to part geometry, material and grinding method. Submit your drawings or CAD files so our engineers evaluate the feasible solution for ultra-precision requirements.
Our fast-track lead time for prototypes and rush orders ranges from 3–7 working days, based on part complexity and quantity. Expedited service is available; share your target delivery schedule for a custom plan.
We grind a broad selection of materials: Metals: Tool steel, stainless steel, hardened steel, aluminum, titanium, brass Hard alloys: Inconel, tungsten, molybdenum Special materials: Ceramics (external grinding only), carbide Send technical specs or samples if you want to confirm material grindability.
Yes. We support single prototype batches as well as large-volume mass production, accompanying your project from design verification stage to full commercial manufacturing.
Yes. On request, we provide Ra surface roughness reports, CMM inspection reports, material certificates and dimensional inspection records to guarantee quality traceability for critical applications.