Mixing Unit · Renfert
Twister
The base vacuum mixer with diaphragm pump. For alginate, duplicating, and model materials.
View details →Mixing Unit · Renfert
Twister
evolution
Eight phases. One hundred programs. Bubble-free, every time.
Twister evolution is the programmable big-brother to the Twister. Same compact wall-mount chassis, same diaphragm pump, but with eight discrete mixing phases — prespatulation, pre-vacuum, main mixing, reverse rotation, post-vacuum — and 100+ custom programs you can dial in per material.
Prespatulation guarantees consistent results regardless of whether plaster or investment is in the bowl, while keeping dust out of the air. Pre-vacuum extracts reaction gases before mixing starts; post-vacuum kills the bubbles that form later on the surface. Powerful motors hold the set rpm with any material, fill level, or bowl size. Used flexibly for plaster, investment, duplicating, and alginate.
The eight mixing phases
01 · Programmable
100+ custom mixing programs — one per material in the lab.
02 · Prespatulation
Consistent results across plaster and investment. Reduces mixing time and keeps dust out of the air.
03 · Pre-vacuum
Undesired reaction gases from investments are extracted before the main mix begins.
04 · Main mix
Powerful motors maintain set rpm with any material, fill level, or bowl size.
05 · Reverse rotation
Paddle direction changes to break up dry agglomerates and improve powder wetting.
06 · Post-vacuum
Kills gas inclusions that would otherwise form on the surface after pouring.
Specifications
Vacuum Build-up
Membrane pump
Programmability
100+ programs
Mixing Phases
8 phases
Max Vacuum
-890 mbar (-12.9 psi)
Vacuum Reduction
70 – 100%
Rotational Speed
100 – 450 rpm
Pump Capacity
16 l/min (0.56 cfm)
Dimensions (wall)
6.0 × 11.2 × 9.3 in
Weight
11.5 lbs (5.2 kg)
Voltage
100 – 240 V
Power
180 VA
Scope of Delivery
+ 500 ml bowl & paddle
The Twister family
Pick the right mixer.
Mixing Unit · Renfert
Twister venturi
Compressed-air variant — uses the lab's air supply for vacuum instead of an onboard pump.
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