High-Precision CNC Milling Services for Metal Components

CNC Milling Dimensions Range and Tolerance Accuracy

Dimensions Range Coverage

CNC milling is capable of processing parts ranging from micro-scale to large industrial components. Small parts can achieve micro-holes as small as 0.5mm and narrow slots as narrow as 1mm (e.g., electronic sensor pin slots). Medium-sized parts cover standard structural components between 100–500mm in size (e.g., automotive gear housings). Large parts can be machined with frame components up to 2000mm in length and weighing over 500kg (e.g., industrial racks), with 5-Axis CNC Milling ensuring consistent precision for complex, large-scale geometries.

Tolerance Grading

Three distinct tolerance tiers based on application requirements:

• Basic Tolerance: ±0.05mm (e.g., equipment housing connectors).
• Precision Grade: Achieves ±0.01mm accuracy through High Precision CNC Milling (e.g., positioning holes in medical surgical instruments).
• Ultra-Precision Grade: Maintains exceptional tolerance of ±0.003mm for aerospace applications (e.g., satellite reflector assemblies), with every batch fully inspected using coordinate measuring machines (CMM).

Dimensional Adaptability Advantage

CNC milling offers superior dimensional adaptability. It supports high-volume batch processing of small parts using specialized fixtures, while also handling oversized components with gantry-style machinery. Our 3000㎡ integrated workshop houses a diverse range of machine specifications, enabling simultaneous processing of both small and large orders without relocation—significantly reducing delivery cycles and enhancing operational efficiency.