Sanluo Precision is a Chinese manufacturer and supplier specializing in providing customized Precision CNC machining services. It offers comprehensive high-precision processing services to customers. It supports the customization of complex and difficult parts. It is equipped with more than 80 high-precision CNC machines, including five-axis processing centers， high-speed processing centers， and precision turning centers， and has equipment brands such as German DMG， Japanese Makino， and Japanese Fanuc from international renowned brands. As a professional Precision CNC machining supplier， the company's business has involved high-end manufacturing industries including aerospace， medical devices， optical instruments， precision molds， semiconductor equipment， etc. Relying on high-precision equipment， complete processes， and quality systems， Sanluo Precision supplies reliable CNC machining services to customers.
Precision CNC machining processes the raw materials through multiple physical and chemical processes to produce high-precision components that meet 3D contours， dimensional tolerances， surface quality， and appearance requirements. The highest precision can reach ±0.0005mm， and the surface roughness can reach Ra0.2μm. It covers a complete process system including CNC turning， CNC milling， precision planing grinding， forming grinding， wire cutting， EDM， and full-size precision inspection. Sanluo Precision， as a domestic professional precision metal part manufacturer， adheres to high standards， strict requirements， and strives for ultimate precision. It has long provided high-quality parts and customized research and development services for aerospace， medical devices， semiconductor optics， automotive industry， precision instruments， and high-end equipment fields.
At the same time， the company specializes in precision ceramic processing. It can adopt subtractive， additive， ultrasonic assistance， laser， and special post-processing techniques to achieve ±0.0001mm dimensional precision and Ra0.02μm surface roughness， widely used in mechanical seals， electronic substrates， biological implants， etc.， and continuously invests in technological upgrades to provide customers with customized ultra-precision metal and ceramic part processing services including： CNC machining precision parts， precision metal parts， precision ceramic machining， CNC precision turning， and precision CNC parts.
As a professional Precision CNC machining manufacturer and supplier, a reasonable and scientific process can effectively control the machining process and the final quality of the parts. The Sanluo Precision processing plant maintains the dimensional tolerance at IT1 to IT7 levels, with the tolerance band approximately ±0.005 to 0.015 mm. The shape tolerance (roundness, cylindricity, flatness, straightness) is controlled within 0.002 to 0.02 mm, the positional tolerance (coaxiality, position degree, runout, etc.) is approximately ±0.002 to 0.03 mm, and the surface roughness is Ra0.1 to 1.6 μm, meeting the high precision machining standard of precision level. In batch production, the dimensional consistency of the machined parts can be controlled within ±0.005 mm, with CPK ≥ 1.67, small process fluctuations, and batch differences less than 0.003 mm. Quantifiable process and process data are the most reliable guarantee for Precision CNC.
Without the support of processes and quality management, even the best machine tools would struggle to perform true precision CNC machining. During the Sanluo Precision process design stage, finite element analysis is used to optimize the clamping and tool path routes, leaving sufficient precision machining margins and reducing the risk of deformation; CAM programming uses software such as UG NX and Mastercam for three-dimensional modeling and tool path optimization, with tool path precision controlled to 0.001mm. Five-axis simulation is conducted to avoid interference and collisions. In the finishing stage, the cutting depth is generally controlled at 0.1 to 0.5mm, the feed rate is 0.005 to 0.02mm/r, the rotational speed is 800 to 3000rpm, and adequate cooling is provided to achieve stable surface quality. Imported cutting tools are selected and PVD coating is applied. The tool pre-adjustment accuracy is ±0.002mm, and the alignment accuracy is ±0.001mm. Life monitoring is used to avoid size drift caused by tool failure. In terms of quality control, the first piece is fully inspected by a coordinate measuring machine (CMM), the process is monitored and calculated using SPC, and the qualified rate of finished products remains at around 99.5%. Automatic compensation forms a closed-loop control, ensuring not only good quality data for individual parts but also more stable production batches in precision CNC machining.
Our Precision CNC machining parts cover high-tech fields such as aerospace, medical devices, and precision molds. Sanluo Precision's high-precision processing has been widely applied in the high-end market. In the aerospace field, five-axis linkage processing is used for titanium alloy and nickel-based alloy blades, with the accuracy of complex twisted surfaces controlled within ±0.002mm and the surface Ra being approximately 0.2μm; for high-energy impact parts, ultra-high-strength steel is used for processing, with the key dimensions' accuracy within ±0.01mm. Most precision instruments and optical parts use aluminum alloy or stainless steel, with concentricity of approximately 0.004mm, end face perpendicularity of approximately 0.001mm, and surface Ra of 0.2μm. They can also undergo anodizing or gold plating treatment.
In medical devices, the outer diameter accuracy of TC4 orthopedic implant screws reaches ±0.001mm, the thread accuracy is grade 6, and the surface roughness Ra is 0.2μm, which is conducive to biocompatibility and bone integration; 316L surgical instruments have a complex shape and an accuracy of ±0.002mm, with sharp edges and no burrs. On precision molds, five-axis processing is used for quenched steel HRC48-62 injection mold cores and cavities, with an accuracy of ±0.002mm and a surface Ra of 0.2μm, and after polishing, it reaches a mirror surface. The complex surface accuracy of die-casting molds is around ±0.002mm, meeting the needs of long-life production. Sanluo Precision Company provides customized services for enterprises such as Huawei and Mindray Medical, producing tens of thousands of precision parts annually, and with verifiable precision data, stable batch quality, and complete engineering support, it has become a trusted Precision CNC machining manufacturer and supplier for customers.
