±0.005 mm
400×160×250 mm
+ Grinding Types
24h
CNC grinding is a high-precision finishing process that removes small amounts of material from a workpiece to achieve very tight tolerances and a smooth surface finish. Using computer-controlled grinding machines, material is removed with abrasive wheels to refine dimensions after machining operations such as milling or turning.
3ERP’s precision grinding machines can achieve tolerances as fine as 0.005 mm (±0.0002″) and support workpieces up to approximately 400 × 160 × 250 mm (L × W × H). This process is often used when standard CNC turning or milling cannot meet strict dimensional or surface finish requirements.
Our quality precision grinding services are ideal for:
Our skilled team provides a range of CNC grinding solutions, carefully selecting the most suitable precision grinding method based on your part design, tolerance requirements, and cost considerations.
This process uses an abrasive wheel that contacts the flat surface of a workpiece to produce a smooth finish. It is commonly performed on a surface grinder, which holds the workpiece on a table moving horizontally beneath the rotating wheel. Variations include rotary surface grinding (Blanchard grinding), which employs a vertical spindle to efficiently remove stock from large flat parts.
Cylindrical grinding is a precision process performed to finish external or internal round surfaces. In this setup, the workpiece and the grinding wheel rotate in opposite directions, enabling highly accurate round shapes. This method is particularly effective for rotationally symmetric components such as shafts and rods.
ID (internal diameter) and OD (outer diameter) grinding are specialized subtypes of cylindrical machining. OD grinding removes material from the external surface, while ID grinding targets the inner diameter to achieve precise bores and holes. Together, these processes ensure complete concentricity for complex cylindrical features.
Centerless grinding does not require a central axis or spindle to hold the workpiece. Instead, the part is supported between a grinding wheel and a regulating wheel. This method reduces clamping errors and is especially effective for high-volume production where speed and consistency are critical. Compared to cylindrical grinding, centerless grinding offers superior efficiency for large production runs.
3ERP provides precision finishing for a wide range of metals and advanced engineering materials. Our processes are ideal for custom components that require tight tolerances and excellent surface finishes.
3ERP and our manufacturing partners are equipped with advanced CNC precision grinding machines to support a wide range of grinding operations. From tool sharpening to precision component finishing, our equipment supports diverse applications and materials, complementing our full range of CNC machining services.
Our CNC grinding machines include:
At 3ERP, we apply strict quality control procedures throughout the grinding process to ensure every part meets design specifications and performance requirements. Each component undergoes multiple inspections, including material verification, dimensional inspection, and final quality checks before shipment.
Precision CNC grinding is essential for high-performance mechanical parts where durability and smooth operation are non negotiable.
Typical precision CNC grinding applications include:
At 3ERP, we can deliver production parts in as fast as 5 days. However, the exact lead time depends on part complexity, material selection, and order quantity. To get an accurate estimate, simply upload your drawings to request a quote.
CNC grinding provides unmatched dimensional control and surface integrity compared to traditional machining methods. It enables the creation of parts with extremely tight tolerances of ±0.005 mm (±0.0002″), which is vital for life-saving medical implants or high-stress aerospace components. Beyond mere accuracy, this process delivers ultra smooth surface finishes that improve the lifespan and aesthetic quality of the finished product.
CNC grinding can be time-consuming and requires a high initial investment in specialized machines. In some cases, grinding can also generate fine debris that must be carefully removed, especially for high-purity applications. To overcome these challenges, many companies choose to partner with an expert provider. By outsourcing to 3ERP, you gain immediate access to high-end equipment and expert technical knowledge without the heavy capital expenditure.
