Renfert Twister Venturi - vacuum mixer (Compressed Air)
Référence: 1827.0000
Twister Venturi – Compressed-air Venturi vacuum mixer
High-torque mixer using Venturi vacuum generated by compressed air. Designed for dental stone, alginates and duplication materials; wall mounting or optional stand.
Clear readout, quick setup
Stone, alginate, duplication
Wall or stand (optional)
180 W • 100–240 V
Venturi vacuum for dense, consistent mixes
The Twister Venturi produces powerful vacuum via compressed air. Two settings (80% / 100%) effectively reduce micro-bubbles and keep everyday results consistent.
- Combined with the 100–450 rpm range, it adapts to dense stone as well as more sensitive alginates.
- The easy-to-read display speeds up parameter input and secures repeatability.
- Compact wall mounting or optional stand for an ergonomic workstation.
Related products
Technical data
| Voltage | 100 – 240 V |
| Frequency | 50 / 60 Hz |
| Power | 180 W |
| Compressed air | 4.5 – 6 bar • 28 L/min |
| Max vacuum | 890 mbar • Bowl pressure 80 mbar |
| Vacuum reduction | 80% or 100% |
| Speed | 100 – 450 rpm |
| Wall dimensions | 152 × 320 × 235 mm |
| Dimensions with stand | 230 × 640 × 295 mm |
| Weight | 4 kg |
Delivery
1 × Twister Venturi with 500 cc bowl. Wall mounting or optional stand . Secure packaging and online tracking.
Guides & resources
FAQ
What are the advantages of Venturi vacuum versus an internal pump?
The Venturi system uses the lab’s compressed air to generate vacuum, which reduces mechanical complexity and the maintenance associated with an internal pump.
You keep a strong, instantly available vacuum, with two levels (80% / 100%) to match the cycle to the material’s viscosity.
In practice, you reduce micro-bubbles, improve mix homogeneity and stabilize repeatability across series of models, while keeping a compact workstation.
How do I choose 80% or 100% vacuum depending on the material?
For dense dental stone (or highly filled materials), choose 100% to limit air inclusions and improve final strength.
For sensitive alginates or duplication materials, 80% is often enough to reduce bubbles while preserving texture and working time.
Combine vacuum level with an appropriate speed profile (moderate start, then progressive increase if needed), and record your presets by material for consistent daily results.
Is it suitable for large batches and intensive daily use?
Yes. Twister Venturi combines high motor torque and stable vacuum to homogenize larger loads without sacrificing consistency.
The display makes it easy to repeat identical cycles, securing quality during sustained production.
The air requirement (4.5–6 bar, ~28 L/min) remains compatible with standard lab lines, and the 500 cc bowl covers most dental lab workflows (stone, alginate, duplication).
What are best practices for installation and maintenance?
Use clean, dry compressed air (filtration/drying) to maintain Venturi performance over time.
Regularly check fittings, seals and hoses for airtightness, and clean the bowl and lid after each use to prevent build-up.
If vacuum drops, inspect seals and tubing first, then follow the provided guides for routine service and replacement parts.
Renfert Twister Venturi - vacuum mixer (Compressed Air)