Polycrystalline Diamond wire drawing die Blanks is diamond crystal block of diamond particles and catalyst cobalt sintered under high temperature and ultrahigh pressure. It has the wear resistance, hardness and good thermal conductivity of natural diamond and the similar toughness of hard alloy. It has a long useful life and can be used in drawing of many kinds of alloy, such as stainless steel, tungsten, molybdenum and aluminum.


Compared with self-supported blanks, Tungsten Carbide Support Die Blanks can withstand greater pressure as Tungsten Carbide has good toughness to support the inner part ( diamond).

Tungsten Carbide Support Die Blanks
Product No. ADDMA ΦD（mm） Φd（mm） t(mm) Grain SizeAvailable
5 μm 10 μm 25 μm 50 μm
SLY4015 D12 8.12 4.0 1.5 • • • •
SLY4023 D15 8.12 4.0 2.3 • • • •
SLY4029 D18 8.12 4.0 2.9 • • • •
SLY7040 D21 13.65 7.0 4.0 • • • •
SLY7053 D24 13.65 7.0 5.3 • • • •
SLY12987 D27 24.13 12.9 8.7 • • •
SLR129120 D30 24.13 12.9 12.00 • • •
SLR152120 D31 24.13 15.2 12.00 • •
SLR152150 D33 24.13 15.2 15.00 • •