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Mould
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We can produce and supply all kinds of natural diamond dies and special dies:
TYPICAL REDUCTION ANGLES AND BEARING LENGTH

Area
Reduction
Per
Draft
Lead
Zinic
Silver
Gold
Aluminum
Nickel
Copper
Brass
bronze
Stainless
steel
High
Carbon
Steel
Hot
Tungsten
8-12% 16º 12º 11º 10º 10º
12-16% 18º 14º 13º 12º 12º
16-15% 22º 18º 16º 15º 12º
25-35% 24º 22º 19º 18º 14º
Length 0.2-0.5d 0.4-0.8d

SPECIFICATION AND TOLERANCE OF STANDARD DIAMOND DIES

INCHES
SIZE RANGE STANDARD TOLERANCE ROUNDNESS
-0.0008- 0.000028 0.000014
0.0008-0.0020- 0.000039 0.00002
0.0020-0.0040- 0.000039 0.00002
0.0040-0.0080- 0.000059 0.00003
0.0080-0.0200- 0.00008 0.00004
0.0200-0.0400- 0.00012 0.00006
0.0400-0.0600- 0.0002 0.0001
0.0600-0.0780- 0.00028 0.00014
>0.0780 0.00042 0.0002

MILLIMETERS
SIZE RANGE STANDARD TOLERANCE ROUNDNESS
-0.020- 0.007 0.00035
0.020-0.051- 0.0010 0.0005
0.051-0.102- 0.0010 0.0005
0.102-0.203- 0.0015 0.00075
0.203-0.508- 0.0020 0.0010
0.508-1.016- 0.003 0.0015
1.106-1.524- 0.0050 0.0025
1.524-1.981- 0.007 0.0035
>1.981 0.010 0.005