The Vac-U-Vest #5 investing machine is used to apply vacuum during mold preparation, helping remove trapped air from investment material to produce dense, bubble-free flasks. Its dedicated vacuum system supports consistent performance in jewelry and small casting workflows.
| 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 (SKU # 7119) | Minimum 15 CFM (SKU # 004-120-R) | 15 CFM up to 28 CFM (SKU # 004-220-R OR 004-220-R115) | 28 CFM up to 45 CFM (SKU # 004-025-A, 004-220-R OR 004-220-115) |
| Shipping Weight | 277 lbs (126 kg) | 510 lbs (231 kg) | 510 lbs (231 kg) | 1070 lbs (485 kg) |
| Application | Investment Mixing | |||
A versatile Vac-U-Vest investing machine designed for a range of flask sizes. This system offers professional flask filling in a reliable industrial package.
Vac-U-Vest: English Engineering for Precision Investing
High-quality, English-manufactured vacuum mixing and investing machines will greatly improve the consistency and quality of your mix. By integrating the mixing and pouring stages into a single, controlled environment, the Vac-U-Vest system eliminates the variables that lead to casting failures, ensuring every flask is prepared to professional standards.
Zero-Air Mixing Technology
The secret to a flawless cast is a bubble-free investment. This system utilizes a specialized internal environment to ensure absolute slurry density.
- Unique Blade Design: The mixer blade is engineered to "unfold" the investment slurry under a constant vacuum, pulling air from the mix as it rotates.
- Zero Air Entrapment: Because the mixing occurs entirely under vacuum, air entrapment is reduced to virtually zero, eliminating the primary cause of surface nodules on jewelry.
- Dual-Chamber Vacuum: Both the upper mixing chamber and lower flask chamber are independently vacuum-sealed for total atmospheric control.
Clean-Room Performance
Designed for the safety of the operator and the cleanliness of the workshop, the Vac-U-Vest system keeps all hazardous materials contained.
- Dust Containment: Since all mixing and pouring of the silica powder is done inside the sealed chamber, exposure to investment dust is kept to a minimum.
- Stainless Steel Turntable: A high-durability turntable allows the operator to precisely position each flask beneath the pouring valves without breaking the vacuum.
- Consistent Flow: The precision valves allow for a controlled release of investment, ensuring each flask is filled evenly and accurately.
The Professional standard for High-Quality Castings
Consistency is the hallmark of any successful production casting department. The Vac-U-Vest series provides a repeatable process that removes the guesswork from flask preparation. By combining high-torque mixing with a clean work environment and zero-air technology, these machines allow you to realize the full advantages of your casting equipment. Whether you are working with gold, silver, or platinum investments, this English-made series provides the reliability and precision required to reduce scrap and increase the quality of your final jewelry pieces.
Engineered for Excellence: Includes full technical support from Romanoff International to ensure your investment mixing process is optimized for peak performance.
| Specifications | |
|---|---|
| Country of Origin | United Kingdom |
| Power | 220V Single-Phase 60Hz |
| Model | Vac-U-Vest #5 |
| Investment Capacity | 5kg (11 lbs) Dry Powder |
| Pouring Valves | One Pouring Valve |
| Inner Chamber Diameter | 10 3/4" (270 mm) |
| Max Perforated Flask Capacity w/ Ring | Two 4" x 9" / Three 3 1/2" x 9" with Flange |
| Maximum Flask Height | 9" (23 cm) |
| Machine Dimensions (L x W x H) | 26" x 20" x 33" (65 cm x 50 cm x 85 cm) |
| Suggested Vacuum Pump | Minimum 10 CFM |
| Shipping Weight | 277 lbs (126 kg) |
