Professional Foundry Services for Jewellery Production
The casting process is one of the most critical stages in jewellery manufacturing. At 925CRAFT, we provide complete foundry services, including master pattern creation, rubber mould making for wax injection, and preparation of wax models used in the lost wax casting process. With years of experience, modern equipment, and a highly skilled expert team, we guarantee precision jewellery casting moulds and perfect repeatability in serial jewellery manufacturing process. Our jewellery casting services are designed for jewellers, jewellery makers, brands, and manufacturers ready to move from a single prototype to scalable collection production.
What Is a Master Model in Jewellery Manufacturing Process?
Master Pattern Model (Original Prototype)
A master model is the first reference piece of jewellery - created either through high-resolution 3D printing or handcrafted by a designer. This master serves as the foundation for creating rubber moulds used in serial production. Every detail of the master model will be replicated in precious metal castings, so absolute precision is essential.
Rubber Mould Making & Casting Preparation Process
1. Rubber Mold Preparation
Based on the master pattern, we create professional rubber casting molds designed for repeated reproduction of the jewellery design.
These moulds are:
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heat-resistant
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flexible
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detail-preserving
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optimized for jewellery wax injection
2. Vulcanization & Hardening
The rubber is heated and vulcanized in professional jewellery presses to achieve proper durability, elasticity, and casting resistance.
3. Wax Injection
The finished mould is transferred to the wax department. Using specialized wax injection equipment, molten wax is injected under pressure into the mould cavity. This produces a precise wax model identical to the original master.
4. Wax Model Removal
Once cooled, the rubber mould is carefully opened to reveal the wax model. The flexibility of the cold mould allows safe extraction even of extremely thin or complex elements.
5. Wax Tree Assembly (Spruing)
The wax models are mounted onto a central sprue to form a wax tree.
This assembly is then sent to the jewellery foundry, where it is:
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encased in investment plaster
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burned out in the lost wax casting process
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filled with molten metal such as silver, gold, or other alloys
This results in precise silver castings or gold castings ready for finishing and polishing.
Discover our precious metal casting process on YouTube: 
925CRAFT
Why Choose Our Jewellery Mould Making Service?
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Perfect repeatability of jewellery designs
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High-precision rubber moulds for serial production
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Micro-detail reproduction
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Full integration with 3D design & 3D printing services
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Professional support for jewellery brands and jewellers
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Ideal for limited collections, prototypes, and large production runs
We help you scale your jewellery production safely and efficiently.
Who Is This Service For?
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Jewelry brands
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Jewellers
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Custom jewellery manufacturers
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Foundries and production partners
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Businesses developing private label collections
From prototype to serial precious metal casting - we manage the critical mould-making stage of jewellery manufacturing.
Start Your Jewelry Production Today
Contact us: [email protected]
Explore our high-quality silver castings and jewelry elements - perfect for earrings, pendants, necklaces, bracelets, rings, and cufflinks.
925CRAFT – Professional Jewelry Foundry & Production Partner.