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Moresuperhard provides large diameter MCD (Monocrystalline Diamond) die blanks for wire drawing and other precision applications. Compared with regular sizes, large diameter die blanks present unique manufacturing challenges that only a few manufacturers worldwide can overcome.

Material: High-purity monocrystalline diamond

Orientation:  <111>

Available Sizes: Up to Φ2.0 mm 

single crystal diamond die blanks

Applications of HPHT Diamond Die Blanks

Tungsten wire

Semiconductor bonding wires (gold wires, copper wires, and aluminum wires)

Medical wires

Stainless steel wires

Copper wires

Cutting wires

Special alloy wires

Precious metal wires Various other non-ferrous or ferrous metal wires

Key Features of MCD Diamond Die Blanks

Large diameter stability: Excellent crystal uniformity, fewer internal defects.

Superior mechanical strength: High hardness and wear resistance ensure extended die life.

High surface finish: Capable of producing ultra-smooth wire surfaces.

Customizable: Dimensions available upon request.

111-facet synthetic single-crystal diamond is used as the die core, ensuring the produced dies have precise positioning and stable performance.

Extremely high hardness and wear resistance guarantee a long service life of the dies.

Single-crystal diamond has excellent heat dissipation performance, making it suitable for high-temperature processing technologies.

Single-crystal diamond is artificially synthesized, so its quality and consistency are guaranteed.

The die hole has an extremely high surface finish and low friction.

111 orientation diamond die blanks

Specifications of Large Diameter MCD Diamond Die Blanks

Mold Thickness(mm)
MCD 111 0.8-0.9
0.9-1.0
1.0
1.1
1.2

1.2-1.3

 

1.3
1.3-1.4
1.4
1.4-1.5
1.5-1.6
1.6-1.8
1.8-2.0

Why Big Size MCD Die Blanks Are Difficult to Make

Crystal growth challenge: Larger crystals are prone to internal stress and inclusions.

Low yield rate: Only a small fraction of grown crystals can meet strict optical and structural requirements.

Processing difficulty: Cutting, shaping, and polishing large MCD requires advanced equipment and expertise.

Moresuperhard Strengths 

Advanced HPHT technology: Stable growth of large single-crystal diamonds with uniform structure.

Strict quality control: Each die blank is tested for crystal integrity and orientation.

Rich experience: Over 15 years in supplying MCD die blanks to leading wire-drawing factories worldwide.

Global supply capability: Consistent delivery of rare large-size blanks.

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  Add:  Zhongyuan Rd, Zhongyuan District, Zhengzhou, 450001, Henan, China

  Tel: +86 17700605088

  WhatsApp:+86 17700605088

  E-mail: pcd@moresuperhard.com