A Typical Die Profile

  • The Entrance Cone has as its primary task to function as a “funnel” and to introduce a uniform distribution of the lubricant on the wire.
  • The Reduction Zone is that part of the drawing die where the reduction of the material takes place. The size of the drawing angle 2a is decided chiefly from a consideration of the value of the reduction.
  • The Entrance Cone has as its primary task to function as a “funnel” and to introduce a uniform distribution of the lubricant on the wire.
  • The Reduction Zone is that part of the drawing die where the reduction of the material takes place. The size of the drawing angle 2a is decided chiefly from a consideration of the value of the reduction.
Die Daimeter Tolerance in um Roundness in um Outer Diameter
0.051-0.099 0.0005 0.0004 25x8.25x 10
0.1-0.500 0.001 0.001 25x8-25x10 28x12
0.501-1.000 0.0015 0.0015 25x10-28x12
1.001-2.500 0.0025 0.002 23x12-43x27
2.501-5.000 0.003 0.002 528x12-43x27
5.001-10.000 0.005 0.004 43x27-53x30

Typical Die Specification for various Die Material

Wire Material Degree of Blending Reduction Angle

Bearing Length

Entry Angle Exit Angle
Bare Copper Well Blended 18° ± 2° 30° ± 10° 70° ± 10° 60° ± 10°
Aluminium Well Blended 20° ± 2° 20° ± 10° 70° ± 10° 60° ± 10°
Aluminium Alloy Well Blended 14° ± 2° 30° ± 5° 70° ± 10° 60° ± 10°
Tin or Silver Plated Copper Very Well Blended 20° ± 2° 20° ± 10° 60° ± 10° 60° ± 10°
Stainless/High Carbon Slightly 12° ± 2° 45° ± 10° 60° ± 10° 60° ± 10°