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Synthetic single crystal diamond wire dies

Diamond dies - Synthetic single crystal diamond wire dies

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

Synthetic single crystal diamonds, also called synthetic mono crystal diamond and abbreviated as SSCD or SMCD or MCD, are man-made diamonds, manufactured under controlled conditions and are free from impurities, inclusions and cracks. These tightly controlled quality aspects lead to predictable and constant die performance.

The SSCD blanks that SK WIRE DIES uses are all <111> oriented with a divergence in the orientation less than 1°. The result is a close-to-round wear pattern for each die, a quality aspect that previously could only be obtained in small natural diamond dies.

Another advantage of SSCD blanks is their availability in several sizes, allowing you to select the diamond blank that best fits your recut program

Key benefits of SK WIRE DIES SSCD diamond wire dies

Long die life due to its extreme hardness and resistance to scratching
Predictable recut dimensions as its blank dimensions are guaranteed
Minimal variation in die life, wear shape variation, and optimal die life due to the <111> orientation
Can be used in high-heat processes because of its extreme thermal conductivity
Easy setup, smooth drawing
All blanks have been manufactured under tightly controlled conditions and are free from impurities, inclusions and cracks
As SSCD blanks are man-made single crystal diamonds, its product quality and consistency is guaranteed
Nonconductive properties make this product a good choice when electrical conductive materials are an issue


Synthetic single crystal diamond has nearly the same material properties as natural diamond, therefore SSCD diamonds should be applicable in the same application areas as where natural diamonds are applied.

Synthetic single crystal diamond dies are successfully applied in both ferrous and non-ferrous wire drawing industries. An advantage of SSCD drawing dies is that the blank dimensions are more consistent than natural diamond blanks, and therefore give a more predictable recut performance than natural diamond drawing dies.

Typical application areas:
Bonding wire (gold, copper, aluminum)
Medical wire
Stainless steel wire
Copper wire
EDM wire
Special alloy and high performance alloy wire
Precious metal wire
Various other ferrous and non-ferrous metal wire types

Product use

Synthetic single crystal diamond can be chosen as a raw material for the following products from SK WIRE DIES:

Wire drawing dies

Shaped wire drawing dies

Bunching & Stranding dies

Extrusion dies

Size range

Synthetic single crystal diamond wire dies (SSCD dies) are part of SK’s diamond dies product portfolio. Typical ranges (both smaller and larger sizes are available on request):
0.005 to 2.00 mm (.00019 - .0787”) -  (ND dies)
0.010 to 2.05 mm (.00039 - .0807”) -  (SSCD dies)
0.040 to 35.0 mm (.00157 - 1.378”) -  (PCD dies)
0.127 to 76.2 mm (.005 - 3.000”) - (T/C dies)

Physical properties
Hardness 50-100 GPa
Thermal conductivity 600-2200 W/mK
Transverse rupture strength 2.0 GPa


Shown below are the dimensions of Element Six SMCD and Sumitomo sumicrystal SMCD  diamond inserts:

Esteves Group SSCD blanks - Sumitomo sumicrystal (111 oriented)


Esteves Group SSCD blanks - element6 (111 oriented)

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