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Investment Casting For Jewelry

Jewelry investment casting, also known as lost-wax casting, is a specialized manufacturing process used to create detailed and intricate metal jewelry components.It involves the use of a wax or resin pattern, which is encased in a refractory material mold (investment).

The investment is then heated to remove the pattern, leaving behind a cavity that is filled with molten metal to create the final jewelry piece.

With the advent of high wax treefrequency melting and a host of other technologies, jewelry casting is more dynamic than ever.

Most jewelry casting is done through the lost wax process, whereby models created through wax carving, growing, or printing are encased in a plaster- like medium known as investment. The investment is heated to extreme temperatures to incinerate the material, creating an impression of the desired form. The intricate cavity is then filled by molten precious metal.

The Step-By-Step Breakdown Of Jewelry Investment Casting

Here is a step-by-step breakdown of the jewelry investment casting process:


Pattern Creation

A wax or resin pattern is produced, either by hand carving the wax or using 3D printing technology. The pattern is an exact replica of the intended jewelry piece, capturing all the intricate details and design elements.


Multiple wax patterns are attached to a wax tree or sprue, forming a cluster. The sprue acts as a pathway for molten metal to flow into the mold cavity.


The wax tree is then dipped or coated with a ceramic slurry multiple times, allowing each layer to dry before the next one is applied. This process is repeated until a thick, durable investment shell is formed around the wax patterns.


The investment shell is heated in a kiln or furnace, causing the wax patterns to melt and flow out of the mold, leaving behind a cavity that matches the desired jewelry piece.


The investment shell, now empty of wax, is further heated to a higher temperature to remove any residual wax, moisture, and other impurities. This step ensures a clean and solid mold for the molten metal.


The prepared investment mold is placed in a vacuum or centrifugal casting machine. Molten metal, such as gold, silver, or platinum, is poured or injected into the mold under pressure. The metal fills the cavity, taking on the shape and details of the original wax pattern.

Cooling and Breakout

The filled mold is allowed to cool and solidify, ensuring that the metal solidifies in the desired shape. Once the metal has cooled, the investment shell is broken away, revealing the metal casting.


The casting is cleaned, polished, and refined to remove any imperfections, excess metal, or rough edges. Additional processes, such as stone setting, engraving, or plating, can be performed to enhance the final appearance of the jewelry piece.

Jewelry investment casting offers advantages such as the ability to produce highly detailed and complex designs, excellent surface finish, and dimensional accuracy. It is a preferred method for creating intricate jewelry pieces, allowing for customization and producing high-quality end products.

The Advantage Of Jewelry Investment Casting

Jewelry investment casting offers several advantages in the manufacturing of jewelry components. Here are some of the key advantages:


Intricate and Complex Designs

Investment casting allows for the creation of highly intricate and detailed jewelry designs that may be challenging to achieve through other manufacturing methods. The process captures even the most delicate details of the original pattern, resulting in intricate and precise final pieces.

Design Flexibility

Jewelry investment casting offers design flexibility, allowing for the production of customized and unique jewelry pieces. The wax or resin patterns used in the process can be easily modified or created from scratch, providing freedom in design and customization for specific customer preferences.

Excellent Surface Finish

Investment casting produces jewelry components with excellent surface finish and smoothness. The ceramic investment material used in the process helps to achieve fine surface details, minimizing the need for additional finishing work.

Material Versatility

Jewelry investment casting is compatible with a wide range of metals, including gold, silver, platinum, and various alloys. This versatility allows jewelry makers to work with different materials and create pieces with desired material properties, colors, and characteristics.

Replication and Consistency

Investment casting enables the replication of multiple copies of a jewelry design with consistency. The use of molds ensures that each casting is an accurate reproduction of the original pattern, maintaining consistency in shape, size, and design elements.


Investment casting can be cost-effective for producing jewelry components, especially when creating intricate and detailed designs. The process minimizes material waste as the investment molds are reusable, and multiple patterns can be cast in a single casting run, optimizing production efficiency.

Compatibility with Various Techniques

Jewelry investment casting works well with other jewelry manufacturing techniques, such as stone setting, enameling, and plating. The cast components can be further enhanced and customized with additional processes to achieve the desired final appearance.

Craftsmanship and Artistry

While investment casting involves modern techniques, it still requires skilled craftsmanship and attention to detail. Jewelry makers can apply their expertise in wax carving, pattern assembly, and finishing to bring out the artistic qualities of the jewelry pieces.

Jewelry Investment Casting Supplier – Precision Casting For Jewelry

Jewelry investment casting combines precision, design flexibility, and excellent surface finish to produce high-quality, intricately designed jewelry components. Its versatility, replication capabilities, and compatibility with various materials and techniques make it a preferred method in the jewelry manufacturing industry.

For investment casting Jewelry, Be-Cu Prototype offers the highest degree of service with a basis of 30+ years experience serving the jewelry industry. We can produce top-level investment castings in a variety of dimensions and shapes. In our foundry, the Investment casting process is operated with the most advanced technology in China. In the whole process, all-metal alloys are available, we can customize investment castings according to your material specifications. Even material compositions are feasible for production. To ensure the best quality, quality control will be done in each investment casting process.We have perfected the art of producing large jewelry volumes with complete JIT reliability, backed by the quality and long-term reliability our customers expect.

Push the boundaries of the technology, explore new materials and design applications with us – we love to get involved.

We can advise on materials, designs and even hole placement. We are lucky to work with some excellent jewellery designers and labels, providing them with fantastic quality jewellery and the packaging to.

Centrifugal Jewelry Casting

Centrifugal jewelry casting is a specialized method used in the manufacturing of jewelry components. It involves using centrifugal force to distribute molten metal into a mold to create the desired shape. This technique is commonly employed for producing small to medium-sized jewelry pieces with high precision and detail.

Vacuum Casting Jewelry

Vacuum casting is a specialized method used in the jewelry manufacturing process to create precise and high-quality jewelry components. It involves the use of a vacuum environment to assist in the filling of a mold with molten metal. This technique is commonly employed for producing small to medium-sized jewelry pieces with intricate details.

Jewelry Laser Cutting Supplier

In conclusion, if you’re looking for a reliable partner for your jewelry casting project, Be-Cu is an excellent choice. With our expertise, state-of-the-art facilities, strict quality control, customization options, and competitive pricing, you can be confident that we will deliver high-quality jewelry castings that meet your requirements. Contact us today to discuss your project requirements and get a quote.

The Case Studies Of Jewelry Investment Casting

You have a complex jewelry design, Our jewelry investment casting service can help you turn it into a reality. With the right equipment, strong technical knowledge, and a focus on quality.. From tool design to finishing and then on to shipment, Be-cu prototpe ensure that every project is completed to a high standard and that your orders are delivered on time, every time.

Online Cooperate With Jewelry Investment Casting Company

Be-cu works with customers all over the world to bring customers ideas to life with the highest quality precision engineered metal components on the planet. We have both precision laser cutting and molds making capabilities that include both conventional and modernized production line. If you are looking for a partnership to help you apply new tools and technologies, or help you fully realize your design vision, let us help you move your business forward, contact our team ([email protected])or quote online today to get the conversation started.