CNC Machining Graphite Parts

Product Overview

Our CNC graphite components and molds are widely used across industries such as automotive, aerospace, semiconductors, chemicals, metallurgy, nuclear, and electronics.

We produce:

• Graphite rods

• Graphite plates

• Graphite blocks

• Graphite crucibles

• Graphite pipes and tubes

• Graphite vanes

• Graphite brushes

• Custom CNC-machined graphite components

Machining Capabilities

• Precision tolerances as per drawings

• Custom surface treatments

• Capability to machine all major graphite grades (isostatic, extruded, molded, vibration)

• Complex geometries and fine-detail parts

• Excellent dimensional accuracy and consistency

Advantages of Graphite Molds

1. Excellent thermal and electrical conductivity

2. Exceptional thermal shock resistance with low thermal expansion

3. Chemically inert and corrosion resistant

4. Strength increases at high temperatures (above 800°C)

5. Natural lubricity and low wear rate

6. Easy to machine into complex, high-precision shapes

Main Applications of Graphite Molds

• Continuous and semi-continuous casting molds for non-ferrous metals like aluminum and copper

• Pressure casting molds used in the automotive industry

• Centrifugal casting molds for bronze bushings and larger sleeves

• Hot pressing molds for carbide sintering

• Glass molding molds for tubes, funnels, and complex shapes

• Sintering molds for diamond tools and semiconductor parts

• EDM electrodes replacing copper in spark erosion processes

Why Graphite for EDM Electrodes?

• 2–3× faster discharge rate than copper

• High-temperature resistance with minimal deformation

• Lightweight (1/5 the density of copper)

• Low electrode wear due to protective carbon layer

• No post-processing required for burr removal

• Easier to grind and polish

• More cost-effective than copper, especially at scale

Graphite Mold Technology & Industry Role

Graphite molds are core equipment in modern industrial production. With growing demands in automotive, electronics, and precision industries, graphite is becoming the preferred mold material for:

• High-speed, high-efficiency mold production

• Superior performance under high temperature and load

• Long service life and stable processing quality

BZNCarbon contributes to this development with locally produced, high-quality graphite mold solutions engineered for industrial excellence.

Available Graphite Grades:

• Isostatic graphite

• Molded graphite

• Extruded graphite

• Vibration graphite

• Mechanical graphite

• Carbon brush grade