Polycrystalline diamond wire drawing dies (PCD dies)

Weilly Diamond designs and manufactures Polycrystalline Diamond (PCD) wire drawing dies engineered for maximum wear resistance, stability, and long service life. Each die is produced from premium PCD blanks (grades D6–D36), sintered under ultra-high pressure and temperature to deliver outstanding toughness and uniform hardness.

These dies provide tight dimensional tolerances—as low as 0.001 mm—and are available for wire sizes from 0.05 mm to 25 mm, with standard casing diameters up to Ø60 × 28 mm. PCD dies combine a mirror-polished bore surface with optimized geometry, minimizing friction, improving drawing consistency, and ensuring superior surface finish quality.

Suitable for copper, aluminum, stainless steel, welding wire, and alloy applications, they are widely used in automotive, power cable, and general industrial production lines. Advanced polishing and reinforcement processes ensure stable performance over long production runs, reducing downtime and overall drawing costs.

Weilly’s integrated manufacturing and inspection systems guarantee precision, repeatability, and high productivity across every die.

Contact Weilly Diamond to discuss your wire drawing requirements.