High-quality, English vacuum mixing and investing machines will greatly improve the consistency and quality of your mix The unique stainless steel mixer blade design unfolds the investment slurry under vacuum as it mixes.
| Model | Vac-U-Vest #5 | Vac-U-Vest #12 | Vac-U-Vest #15 | Vac-U-Vest #25 |
|---|---|---|---|---|
| SKU | 76-2001-RM | 76-2002-RM12 | 76-2005-RM | 76-2003-RM |
| Power | 220V Single-Phase 60Hz | 220V 3-Phase 60Hz | ||
| Investment Capacity | 5 kg (11 lbs) Dry Powder | 12 kg (26.5 lbs) Dry Powder | 15 kg (33 lbs) Dry Powder | 25 kg (55 lbs) Dry Powder |
| Pouring Valves | One Pouring Valve | 1 Stainless Steel Pouring Valve | One Stainless Steel Pouring Valve | Two Stainless Steel Pouring Valves |
| Inner Chamber Diameter | 10 3/4 in. (270 mm) | 14 in. (350 cm) | 15.5 in. (39.5 cm) | 21 in. (53 cm) |
| Max Perforated Flask Capacity w/ Ring | Two 4 in. x 9 in. / Three 3 1/2 in. x 9 in. with Flange | 5 ea 4 in. x 9 in. Flanged Flasks | 6 ea 4 in. x 10 in. with Flange | 8 ea 4 in. x 10 in. with Flange |
| Maximum Flask Height | 9 in. (23 cm) | 10.25 in. (26 cm) | 10 in. (25 cm) | |
| Machine Dimensions | 26 in. x 20 in. x 33 in. (65 x 50 x 85 cm) | 27 in. x 31 in. x 61 in. (67 x 77 x 154 cm) | 28 in. x 31 in. x 61 in. (69 x 77 x 154 cm) | 42 in. x 36 in. x 62 in. (105 x 90 x 155 cm) |
| Suggested Vacuum Pump | Minimum 10 CFM | Minimum 15 CFM | 15 CFM up to 28 CFM | 28 CFM up to 45 CFM |
| Shipping Weight | 277 lbs (126 kg) | 510 lbs (231 kg) | 510 lbs (231 kg) | 1070 lbs (485 kg) |
| Country of Origin | United Kingdom | |||
| Application | Investment Mixing | |||
Vac-U-Vest #25 Investment Mixing Machine: 8-Flask Capacity
Manufactured in England, the Vac-U-Vest #25 is a premier industrial-grade mixing system designed to eliminate air bubbles from investment slurries and produce consistent, high-quality castings. Engineered for high-volume workshops, this unit allows jewelers to mix and pour investment for gold, silver, and brass casting entirely under a vacuum atmosphere, ensuring the full advantages of modern casting technology are realized in every batch.
A high-capacity Vac-U-Vest system designed for 8 large flasks. This machine is built for the rigors of industrial investing at scale.
Main Features
The Vac-U-Vest series is built for precision and ease of use, coupling the mixing and pouring stages into one seamless vacuum-sealed process.
- Vacuum-Sealed Integrity: Both the mixing tank and the flask chamber are coupled via a precision pouring valve, ensuring your slurry never touches the air.
- Multi-Flask Productivity: Specifically configured to handle up to 8 flasks at once, utilizing an internal turntable for efficient distribution.
- Universal Compatibility: Part of a series of five machines that are compatible with all major brands of casting equipment.
- Eliminate Porosity: By removing air from the slurry during the mix, it prevents surface bubbles and ensures fine detail on every jewelry piece.
Streamlined Workflow
Achieve consistent, professional results in four simple, repeatable steps:
- 1. Load & Mix: Load pre-weighted water and powder. Mix under vacuum for 5-6 minutes for a perfect slurry.
- 2. Precision Pour: Pour the mixed slurry via the valve to each flask in turn, aided by the integrated turntable.
- 3. Final Vacuum: Once pouring is complete, run the vacuum for 1 minute before releasing to retrieve the flasks.
- 4. Rapid Clean: Switch on the built-in water wash to quickly remove all remaining slurry from the tank.
Industrial Durability & Design
The Vac-U-Vest #25 is designed to withstand the heavy daily use of a professional manufacturing facility. By combining the mixing tank and flask chamber into a single unit, it reduces the footprint in your workshop while maximizing your output. The system’s ability to keep flasks under a constant vacuum during the pour stage is the definitive solution for reducing scrap and post-processing labor. Whether you are scaling up production for silver collections or high-end gold pieces, the #25 offers the capacity and reliability required for a modern casting department.
Coast To Coast Service: Proudly manufactured in England and supported by Romanoff International’s technical service team for installation and training.
| Specifications | |
|---|---|
| Country of Origin | United Kingdom |
| Power | 220V 3-phase 60Hz |
| Model | Vacu-Vest # 25 |
| Pouring Valves | Two Stainless Steel Pouring Valves |
| Investment Capacity | 25 kg (55 lbs) Dry Powder |
| Inner Chamber Diameter | 21" (53cm) |
| Max Perforated Flask Capacity w/ Ring | 8ea 4" x 10" with Flange |
| Maximum Flask Height | 10" (25cm) |
| Machine Dimensions | 42" x 36" x 62" (105cm x 90cm x 155cm) LxWxH |
| Suggested Vacuum Pump | 28 CFM Up To 45 CFM |
| Shipping Weight | 1070 lbs (485kg) |
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