The OPPressCast OP3 and OP5 are engineered to meet the demanding needs of large-scale jewelry manufacturers. These pressure-over-vacuum casting systems deliver outstanding versatility and superior quality castings, including advanced “stone-in-place” techniques for all low-melting-point metals and alloys such as gold, silver, brass, and more.
Exceptional Performance with High Casting Pressure
Experience unmatched precision with casting pressures up to 6 bar, ensuring flawless filling of intricate details. This makes OPPressCast systems perfect for complex jewelry designs. An integrated thermocouple probe combined with an advanced temperature controller guarantees consistent quality and repeatable results in every casting cycle.
Next-Generation Induction Heating Technology
Powered by state-of-the-art induction heating, OPPressCast systems deliver rapid and efficient metal melting. The process ensures excellent mixing of molten metal using low-frequency (6 kHz) electromagnetic pulsing, enhancing structural integrity and the overall quality of your finished jewelry pieces.
Features
Dual-chamber injection casting system with advanced pressure-over-vacuum technology
High-pressure casting up to 6 bar with pneumatic flask lift for smooth operation
Graphite stopper rod precisely positioned at the crucible center for controlled metal flow
Accurate temperature regulation via thermocouple integrated in the sealing rod
Multi-program capability – up to 10 fully programmable cycles with 10 adjustable parameters per cycle
External water cooling system: 6 L/min (1.6 GPM) at 3 bar (45 psi) minimum, 30 °C
Integrated high-performance vacuum pump – 100 mbar with 40 m³/hr. capacity
Argon protection required for each casting – max 60 L at 2 bar pressure
Optional high-capacity granulation system for added versatility
Model | OPPRSCast OP3 | OPPRSCast OP5 |
Power (max) | 11.0 kW | 11.0 kW |
Frequency | 6 kHz | 6 kHz |
AC Line (50/60Hz) | 400 V ±10% (3 Phase)230 V ±10% (optional) | 400 V ±10% (3 Phase)230 V ±10% (optional) |
Max Melting Temperature | 1300 °C | 1300 °C |
Crucible Capacity | 3 kg Au | 5 kg Au |
Crucible Volume | 208 cm³ | 430 cm³ |
Flask Size (min), DxH | 87 x 127 mm | 80 x 127 mm |
Flask Size (max), DxH | 120 x 300 mm | 120 x 300 mm |
Vacuum Pump | Included | Included |
Cooling Requirements | Water (External) | Water (External) |
Cooling Water (min) | 5.8 L/min (1.53 GPM) | 5.8 L/min (1.53 GPM) |
Max Inlet Water Temperature | 35 °C | 35 °C |
Weight | 639.3 lb (290 kg) | 937 lb (425 kg) |
Dimensions (LxWxH) | 27.6″ x 39.8″ x 53.1″ (700 x 1010 x 1350 mm) | 27.6″ x 39.8″ x 53.1″ (700 x 1010 x 1350 mm) |
Benefits – OPPRSCast Series
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Improved Energy Efficiency – Advanced induction technology minimizes energy consumption compared to traditional methods.
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Higher Degree of Controllability – Precision control over temperature, pressure, and casting parameters for consistent results.
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Increased Repeatability – Reliable, reproducible performance for uniform casting quality every time.
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Low Maintenance Requirements – Robust design and integrated systems reduce downtime and service needs.
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Increased Productivity – Fast melting cycles, high casting pressure, and programmable automation enable maximum throughput.