Graphite Coin Mold

Graphite Coin Mold for Metal Casting

High thermal conductivity

Graphite molds possess high thermal conductivity. The coin mold evenly distributes the smelting temperature, reducing product defects and generating high-quality graphite coin molds.

Excellent high-temperature resistance

This mold can keep stability under a high-temperature state. During the high temperature in the smelting process, it keeps the stability of the product for producing graphite coins.

High precision processing

Graphite molds can bear complicated geometric shapes and high precision details. Due to this reason, this mold is quite suitable for reproducing complex patterns and making coins.

Anti-corrosion

The graphite material of this die is highly resistant to chemical attack by most metal melts. The graphite material can extend the service life of the coin die.

Reproducibility

Manufacturers can reuse this die for multiple production minting cycles. Along with long-term care and cleaning, this die will produce high-quality coins over time.

Types of molds

Types of coin mold

In general, coin molds are made of graphite, steel, silicon, brass, aluminum, magnets, silver, and so on. Manufactures use graphite and steel molds to produce large-scale coins. For the high temperature in the work process, ceramic molds can cast coins with complex designs. Manufactures could use silicon, brass, and aluminum molds in prototyping or low-temperature applications. Silver coin molds require attention in precision in their products of design and thermal stability during pengecoran.

Types of Graphite Coin Mold

Manufacturers categorize graphite coin molds into single-side molds, two-side molds, strength molds, custom molds, inserted molds, and split molds. Based on the difference in design and use, there are these kinds of mold types classification

How to mold graphite coin？

Material Selection

Producers must sift out graphite materials to produce good graphite molds. We should select graphite that is highly pure and granular. Using good quality graphite increases product quality and ensures highly accurate coins.

Mold designing

Design the details of coins using CAD, that is Computer-aided design. With the aid of computer design, use CAM computer-aided manufacturing software in constructing toolways by computer numerical control machining.

Treatment of mold

Producer then mount the graphite block onto the CNC milling machine and engrave the coin pattern on the graphite surface using the engraving tool. After that, they use sandpaper to polish the mold to obtain a smooth graphite mold surface.

Testing mold

To ensure the production of high-quality molds, technicians will need to test and check the output. Afterwards, they test the mold casting to produce the required sample coins. Additionally, technicians check the produced coins for design accuracy and size consistency.

Production of Mold

After completing the production process, we use the graphite mold to make coins. First, pour the molten metal into the mold. Then we use high pressure to soften the metal piece so that the metal piece can be pressed into the mold.

Application of graphite coin mold

Coin Minting

Graphite coin dies are designed for producing metal coins. This die can be used to make fine engravings on coins.

Making of Memorial Coin

Manufactures can use graphite molds to create memorial coins and medals. It will be difficult to generate complex patterns on a memorial coin or medal accurately; this mold does the job perfectly.

Making custom coins

Customized dies to meet the custom requirements can bear even complex designs on it. You can customize private organization coins using graphite dies.

Graphite molds for metal casting

You can use graphite molds to strike coins of metals made of metals with high melting points. This is because the thermal stability of grafit ensures that at high temperatures, good quality coins are achieved.

Why choose our graphite coin mold?

We make our graphite coin molds using high-purity graphite. The produced coins can be of good quality and have a longer service life with excellent thermal stability and corrosion resistance. Graphite coin molds produced by our company are also resistant to high temperatures, which can be used in casting precious metal materials, such as silver and gold coins. We will design high-quality graphite coin molds in accordance with customers’ shape, size, and specific design requirements. Our customized graphite coin mold is capable of processing with high precision, complex, and perfect surface treatment. In the casting of commemorative coins, collectible coins, and circulation coins, the mold is your best choice.