Precision Micro Machining

Precision Machining Capacity

Our precision micro machining achieves extreme accuracy: dimensional accuracy with diameter ±0.001mm, length ±0.002mm, position ±0.003mm; geometric accuracy with roundness 0.0005mm, cylindricity 0.001mm, flatness 0.001mm; surface quality with roughness Ra0.01-0.2μm, the surface is close to mirror finish without scratches; size range with the minimum part diameter φ0.01mm, the minimum feature size 0.02mm; machining tolerance of IT2-IT6 precision grade; material adaptability for ultra-precision machining of stainless steel, titanium alloy, cemented carbide, ceramics, sapphire, engineering plastics and other materials.

Precision Micro Machining Station Accuracy

Ultra-precision Process

The ultra-precision processes of Sanluo Precision's processing plant for precision micro machining include: precision micro turning (diamond cutter, cutter nose R0.05mm, surface Ra0.05μm, spindle air bearing rotation accuracy 0.0002mm), precision micro milling (diamond coated milling cutter φ0.1-1mm, rotational speed 80000rpm, surface Ra0.1μm), ultra-precision grinding (diamond grinding wheel with grain size W1.5, surface Ra0.02μm), grinding and polishing (free abrasive grinding, chemical mechanical polishing CMP, surface Ra<0.01μm), compound ultra-precision machining (turn-grind compound, mill-grind compound, error elimination in one clamping, concentricity 0.002mm).

Quality Assurance System

As a professional manufacturer of precision micro machining, Sanluo Precision strictly controls quality: constant temperature and humidity laboratory with temperature 20±0.1℃, humidity 50±2%, cleanliness Class10000, active vibration isolation platform with vibration <0.5μm; ultra-precision machine tool spindle rotation accuracy 0.0002mm, positioning accuracy 0.0005mm; diamond cutter runout <0.001mm, wear compensation to ensure accuracy; laser interferometer, white light interferometer, atomic force microscope (AFM) with nanometer-level detection accuracy, coordinate measuring machine with accuracy 0.0005mm. The application fields include: high-end equipment (precision reducer planetary gears with a module of 0.1mm, lithography machine guide rail with a straightness of 0.001mm/100mm), precision instruments (atomic force microscope probe with a tip curvature radius <10nm), medical implants (cochlear implant electrodes with φ0.3mm and 16 contacts, pacemaker shell with a wall thickness of 0.3mm and air tightness <10⁻⁹Pa·m³/s), optoelectronic devices (optical fiber connector ceramic ferrule with a hole diameter of φ0.125mm and concentricity 0.001mm, laser cavity with a flatness of 0.0005mm). We have provided customized precision micro machining services for enterprises such as Zeiss, Leica, Medtronic, Corning, etc., with a qualification rate of 99.9% for ultra-precision parts.

Equipment Technical Parameters