Polycarbonate CNC Machining Service

Yes, Polycarbonate (PC) is highly suitable for CNC machining thanks to its excellent toughness, dimensional stability, and good machinability. We support tight tolerances down to ±0.005″ (127 μm) for most features, with even tighter precision possible depending on part geometry and material grade. Proper tool selection, sharp carbide cutters, controlled speeds/feeds, and cooling help prevent heat buildup, melting, or stress cracking—ensuring clear, high-quality results for prototypes and production runs.

Polycarbonate outperforms Acrylic in impact resistance and durability, making it far less prone to cracking or chipping during machining and in end-use. While Acrylic offers slightly better optical clarity in some cases, Polycarbonate provides up to 88-92% light transmission with superior toughness—ideal for high-impact applications like guards, lenses, enclosures, and protective components. It’s often the better choice when strength and reliability matter more than absolute scratch resistance.

Polycarbonate can be sensitive to heat and stress, potentially leading to melted edges, cloudy surfaces, warping, or stress cracks if not handled correctly. We overcome these with sharp, polished carbide tools, optimized spindle speeds (typically moderate RPM), higher feed rates to minimize dwell time, air/mist cooling, and careful fixturing to reduce vibration. This delivers smooth finishes, excellent clarity (with optional post-polishing), and consistent repeatability across prototypes to medium-volume production.