Hasung Vacuum Pressure Jewelry Casting Machine | Professional Equipment for High-End Precious Metal Jewelry Casting

In precious metal jewelry production, defects such as porosity, sand holes, incomplete pattern reproduction, oxidation discoloration and insufficient filling have long restricted finished product yield, raising precious metal loss and rework costs. The Hasung vacuum pressure jewelry casting machine integrates vacuum protection, induction melting and pressure pouring technologies. It is suitable for casting gold, K gold, silver, platinum, palladium and other precious metals. Featuring stable equipment performance and excellent casting results, it is the preferred casting solution for jewelry studios, jewelry processing factories and branded jewelry manufacturers.

Vacuum & Argon Protection System to Prevent Oxidation and Eliminate Bubbles from the Source

Equipped with a high-sealing vacuum system, the machine quickly evacuates air from the furnace cavity and mold cavity before casting, then fills with argon to form an inert protective atmosphere that isolates oxygen. It effectively prevents oxygen absorption and oxidation of precious metals during melting, greatly reducing porosity and sand holes in castings. It also solves common problems of open casting such as gray and mottled oxidized blanks, delivering a clean and controllable melting environment.

Precise PID Temperature Control with Electromagnetic Stirring for Homogeneous Molten Metal

Fitted with a high-precision PID intelligent temperature control system together with electromagnetic stirring, the machine ensures even heating of molten metal and avoids alloy segregation. It prevents local overheating and incomplete melting. The melting temperature and metal fluidity of each batch remain stable, minimizing parameter fluctuations caused by manual operation and laying a solid foundation for standardized mass production.

Controllable Pressure Pouring with Strong Filling Capacity for Complex Designs

Different from conventional gravity casting, controllable pressure drives molten metal to fill the gypsum mold cavity rapidly. For jewelry with complex structures including filigree, hollow patterns, thin setting prongs, reliefs and thin-walled small pieces, complete mold filling can be achieved. It effectively avoids forming defects such as cold shuts, flow marks, insufficient material filling and broken prongs, meeting production requirements of high-difficulty custom jewelry.

Integrated Automatic Process, Easy Operation & Maintenance, Lower Labor Threshold

The whole process of melting, vacuuming and pressure casting is programmable and starts with one tap on the touch panel for high single-cycle efficiency. Operators can get started after simple training, reducing reliance on experienced casting technicians. The compact machine adopts durable core components with easy daily maintenance and low failure rates, cutting downtime loss and optimizing overall production costs.

Dense Castings with Higher Yield and Lower Precious Metal Loss

Vacuum pressure forming delivers compact internal structure for jewelry with remarkably fewer shrinkage cavities and pores. Setting prongs and thin-walled areas feature better toughness and are less likely to crack during polishing, shaping and stone setting. Lower rework rates reduce repeated remelting loss of precious metals and save raw material costs in long-term production.

Excellent Pattern Reproduction to Restore Design Details Faithfully

Sufficient fluidity of molten metal ensures clear and full fine textures, relief outlines and lace lines in molds without blurriness or discontinuity. Whether for simple plain gold jewelry or sophisticated high-end custom filigree pieces, the machine faithfully reproduces designers’ concepts and supports high-end jewelry customization.

Low-Oxidation Clean Blanks to Simplify Post-Processing

Cast blanks produced under inert melting conditions have thin oxidation layers and uniform clean base colors, requiring little grinding to remove oxide scale. Mirror finishes are easier to achieve during polishing. It shortens working hours for pre-treatment processes such as grinding, sandblasting and electroplating, accelerates production line turnover and reduces polishing consumables.

Consistent Batch Quality for Both Custom and Bulk Orders

With fixed process parameters, finished products in the same batch maintain consistent dimensions, forming effects and blank colors with minor color difference and deformation. The machine flexibly supports two production modes: small-batch custom jewelry orders as well as large-scale standardized branded orders, helping jewelry manufacturers sustain good product reputation.

The Hasung vacuum pressure jewelry casting machine combines vacuum shielding, precision melting and pressure forming core technologies to solve various process pain points of traditional jewelry casting in one unit. With stable and reliable equipment performance, it produces precious metal jewelry with fewer defects, exquisite details, pure color and durable structure. It helps jewelry enterprises improve quality, boost efficiency and manufacture high-quality jewelry products.