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Why Precision Chillers Are Critical for Ultra-Precision Optical Machining

Discover why ±0.1°C precision chillers are vital for ultra-precision optical machining. TEYU CWUP Series chillers deliver stable temperature control to prevent thermal drift and ensure exceptional optical surface accuracy.

2025-10-29

In ultra-precision optical machining, even the smallest temperature change can lead to significant errors. For example, when machining a 100 mm aluminum alloy optical mirror (thermal expansion coefficient≈23 µm/m·°C), a mere 0.5°C temperature rise can cause a thermal expansion of about 1.15 µm, enough to compromise nanometer-level machining accuracy.

Every component of the system, the workpiece, spindle, machine bed, and guideways, undergoes thermal expansion due to spindle heat and ambient temperature fluctuations. This makes precise thermal control essential to maintaining sub-micron dimensional stability and ensuring high-quality optical surface finishes.

That's why a precision chiller with ±0.1°C temperature stability is indispensable. TEYU CWUP Series precision chillers, featuring ±0.08°C ~ ±0.1°C control accuracy, provide exceptional thermal consistency for advanced optical machining and CNC systems. Trusted by leading optical and precision equipment manufacturers worldwide, TEYU precision chillers effectively minimize thermal deformation, maintain stable operating temperatures, and ensure dimensional accuracy in nanometer-scale manufacturing.