We are equipped with comprehensive inspection and testing facilities. We utilize world-class measurement systems, including Leitz coordinate measuring machines from Germany, Zeiss gantry CMMs, Gleason gear measurement centers from the United States, and Renishaw dual-frequency laser interferometers from the United Kingdom.
In total, we operate 160 sets of large-scale dimensional measurement equipment, 10 sets of metallurgical testing instruments, 3 sets of non-destructive testing devices, 8 sets of functional testing systems, and 445 sets of thermal, mechanical, and electrical testing equipment. More than 6,888 inspection and metrology tools are deployed on the production floor. We also maintain 1,400 square meters of dedicated spaces for product inspection, testing, and laboratory work. Together, these resources provide strong assurance for accurate, consistent, and reliable product verification.
Major Inspection Equipment
Renishaw XL-80 Laser Interferometer (UK)
- Measurement range: 0–80 m
- Linear accuracy: ±0.5 ppm
- Laser stability: ±0.05 ppm
- Resolution: 1 nm
- Maximum velocity: 4 m/s
- Dynamic sampling rate: 10 Hz–50 kHz
- Warm-up time: < 6 minutes
- Primary use: Acts as a length-measurement reference. Used for evaluating linear accuracy, angular accuracy (including rotary axes), and straightness of machine tool axes.
Renishaw QC20-W Ballbar System (UK)
- Sensor resolution: 0.1 μm
- Sensor accuracy: ±0.5 μm (at 20°C)
- System accuracy: ±1.25 μm (at 20°C)
- Measurement range: ±1.0 mm
- Primary use: Measures radial deviation while rotating around a fixed point to analyze servo performance, multi-axis interpolation accuracy, positioning accuracy, and squareness errors.
Leitz Reference CMM (Germany)
- Model: Reference 70g
- Measuring range: 1500 mm × 900 mm × 700 mm
- Accuracy: 0.9 + L/350 μm
- Primary use: High-precision measurement of geometric tolerances, coordinate dimensions, cam profiles, and complex curved surfaces.
Gleason Sigma 7 Gear Measurement Center (USA)
- Model: Sigma σ7
- Gear capability: Module ≥ 0.5; length < 1000 mm; diameter < Ø600 mm
- Accuracy: Meets Grade 3 gear precision
- Primary use: Inspection and mapping of gears, worm gears, worms, hobs, worm hobs, and shaping cutters.
VC-10 Contour Measuring Instrument (Germany)
- X-axis: 0–225 mm range; 0.002 μm resolution
- Z-axis: 0–225 mm range; 0.002 μm resolution
- Y-axis travel: 25 mm; height 90 mm
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Thread measurement range:
External: M1–M180
Internal: M3–M180
- Surface roughness:
Range: Ra 0.05–Ra12.5 μm
Accuracy: 5% (DIN Grade 1)
- Distance measurement accuracy: ±(0.5 μm + L/100 mm)
- Contour measurement error: 0.01%–1%
- Thread accuracy:
Major diameter error: 2.0 + L/150 μm
Pitch diameter error: 2.0 + L/150 μm
Minor diameter error: 2.0 + L/150 μm
Pitch error: 0.5 + L/150 μm
