Ultra-High Density Micro-Fin Copper Tube Rolling Blade (50 FPI)

Precision micro-finning blades optimized for high-density (up to 50 FPI) copper tube production.

Fin Density:: Up to 50 FPI (Fins Per Inch)
Pitch Precision:: ±0.005mm
Compatible Tube:: Thin-Walled Soft & Half-Hard Copper
Coating Option:: Available with TiAlN for Extended Wear

Technical Specifications

The Science of High FPI Formation

Forming 40 to 50 fins per inch requires a tool that can maintain its profile under constant vibration and heat. Our micro-fin blades feature a specialized 'low-drag' profile that reduces friction during the cold-forming process, allowing for higher density without compromising the tube's structural integrity.

Specifically engineered for C12200 Phosphorus-Deoxidized Copper
Uniform heat transfer across the entire tube circumference
Critical for compact condenser and evaporator designs

Fin Density & Capacity Standards

Nexmek provides a range of precision blades to meet the evolving standards of the refrigeration industry.

Density (FPI)	Pitch (mm)	Typical Application	Fin Height (mm)
26 FPI	0.97mm	Standard HVAC	1.0 - 1.5mm
32 FPI	0.79mm	High-Efficiency AC	0.8 - 1.2mm
40 FPI	0.63mm	Precision Refrigeration	0.6 - 1.0mm
50 FPI	0.50mm	Ultra-Compact Chillers	0.4 - 0.8mm

Edge Stability & Material Excellence

To maintain a 0.50mm pitch, the blade material must be exceptionally stable. We use ultra-fine grain tool steels and specialized vacuum heat treatment to ensure that our blades do not deflect or wear prematurely, even when running at 2,000+ RPM in continuous finning lines.