Welcome.

 Natural diamond dies

Starking Natural diamond dies use German technology and America raw material to produce in China

Starking wire drawing die company produces natural diamonds dies (ND dies) has superior quality and durability. Accurate die hole, high cleanliness and precise size, so distributed distortion, the minimum wire drawing force and surface quality, this is the best mold, metal wire, such as magnet wire, telephone wire, coated wire , stainless steel wire, etc.
 

Each diamond stone has been check thoroughly and accurately, ensuring there are no enclosure, crack and other defectives in the natural diamond stone. Accurate spar orientation upon natural diamonds has greatly improved the wear resistance/durability of die holes.

Diamond Dies Features:

● Precision Mould guide
● Precise Mold Information
● highly polished finish backup relief from the bell
● Accurate dimensions
● reduce the angle of straight line
● The maximum wear resistance
● Minimum die pull
● Excellent surface quality wire rod
● hole diameters: 0.009 - 1.750 mm

  Main products:

Copper wire drawing dies

Aluminum rod drawing dies

Brass rod wire drawing dies

Steel wire drawing dies

Steel cord wire drawing dies

Bead wire drawing dies

Hose wire drawing dies

Sawing wire drawing dies

Fluxed cored wire drawing dies

Welding wire drawing dies

	A. Approach Angle / Front Bell B. Blend C. Reduction Angle D. Wire Contact Area E. Bearing Length F. Back Relief G. Exit / Back Bell
Reduction Angle: Normal for Soft Materials is 16°- 20° Hard Materials is 12°- 16°. Bearing Length: Shown at % of Hole Diameter. Normal for Soft Materials is 20% - 40%. Hard Materials is 40% - 60% .

Typical Reduction Angle & Bearing Length

% of Area Reduction Per Draft	Lead Zinc Silver Gold	Aluminum Nickel Copper	Brass S. Steel Alloys	Hard Alloys High Carbon Steel	Hot Tungsten
8 to 12%	16°	12°	11°	10°	10°
12 to 16%	18°	14°	13°	12°	12°
16 to 25%	22°	18°	16°	15°	12°
25 to 35%	24°	22°	19°	18°	14°
Bearing Length	0.2-0.5d		0.4-0.8d