Mixer
Mixing is movement of each particle to an exact position with other Particles, and avoid segregation of already mixed material.
The fluidized zone provides:
- Homogeneous mixing independent of particle size and density.
- Free particle movement.
- Minimal heat generation
- Gentle mixing
- Low chear
Large access doors ensure:
- Quick inspection
- Easy cleaning
Large discharge doors give:
- Fast emptying
- Reduced segregation
- Minimal residue
Steel fabrication:
- Various steel options available.
Low Power Consumption Guarantees:
- Low friction
- Minimal wear
- Low maintenance
- Low running cost
Twin mixer shafts provide:
- Overlapping paddles
- Optimal particle movement
- Fluidization
- Short mixing time
- Control of main particle movement
- Insignificant dynamic forces on structural steel work and buildings
Fast and Gentle High Precision mixing
The complete design of STAR TRACE Mixer Combine fast mixing with slow shaft speed and gentle product handling resulting in highly homogenous mixes after extremely short mixing times.
Carefully positioned paddles on two low speeds, counter rotating shafts create a fluidized zone with low power consumption.
This means very low shear and friction which in turn makes the mixer ideal for fragile products which cannot tolerate rough handling.
Versatile for Liquid Additions
We are able to add liquids at much higher rates than normally possible, due to the high particle movement capacity and fluidization of the particles. All the material surfaces are constantly being exposed for maximum dispersion. It is possible to add small or large amounts of liquid, with high or low viscosity to powders, granules or pellets.
Filling Level
How it Works
The STAR TRACE mixer consists of twin drums with two counter rotating rotors and specifically angled paddles. The rotors overlap in the centre of the mixer and the paddles completely sweep the bottom and mix all the material at the same time.
In zone B the materials have a main movement counter clockwise at the perimeter of the mixer.
Simultaneously there are movements in the fluidized zone A both up and down, left and right and back and forth, All the time with space between the particles allowing free and random movement.
The interaction of the two zones is the key to the unique fore berg mixing
Technology as all particles are transported into a highly homogeneous
mix.
The STAR TRACE mixer is very flexible in filling volume. The model number
indicates the NOMINAL filling level i.e., the level just above the rotor
shafts, and is not to be mistaken for the total mixing volume.
From our nominal filling level of 100% variations from 40% to 140% can be tolerated with the same perfect mixing results. The mixing time may be a few seconds longer than normal when mixing very small or very large batches.
Options Liquid addition with FDB
When adding liquid to powders which tend to agglomerate, a Flow Distortion Bar (FDB) is used to improve the performance. The FDB consists of a rapidly rotating bar with pins. It creates a moving curtain of material over the paddles during spraying for maximum exposure and adding of shear.
Mixing with Pin Mill System
When higher shear is required the use of Pin Mill System is employed. It consists of two rapidly rotating bars with pins and a stationary shroud. The Pin Mill system is used for breaking lumps and agglomerates which may be present. When using FDB and Pin, Mill System the mixer should not be under filled.
Specifications
| Model | Batch Size (Liters) | Motor Rating (H.P) * | |||
| Min | NOR | MAX | STD | MAX | |
| ST - 20 | 8 | 20 | 28 | 1.0 | 1.5 |
| ST – 60 | 24 | 60 | 84 | 3.0 | 5.0 |
| ST – 120 | 48 | 120 | 168 | 5.0 | 7.5 |
| ST – 200 | 80 | 200 | 280 | 5.0 | 7.5 |
| ST – 350 | 140 | 350 | 490 | 5.0 | 10.0 |
| ST – 500 | 200 | 500 | 700 | 10.0 | 20.0 |
| ST – 750 | 300 | 750 | 1050 | 15.0 | 30.0 |
| ST – 1200 | 480 | 1200 | 1680 | 20.0 | 40.0 |
| ST – 2000 | 800 | 2000 | 2800 | 40.0 | 60.0 |
| ST – 2500 | 1000 | 2500 | 3500 | 40.0 | 60.0 |
| ST – 3600 | 1440 | 3600 | 5040 | 5.0 | 75.0 |
| ST – 5000 | 2000 | 5000 | 7000 | 60.0 | 100.0 |
STD - Standard Motor Rating
MAX - Maximum Motor Rating
* The motor rating is dependent on the material, Bulk density etc. To be mixed. Technical data might be changed without warning.
Special Features
Large Access Doors
Provide easy access for inspection and cleaning of the mixer interior. The doors are constructed to be flush inside the mixer when closed and are easily maintained.
Drive System
(Guards removed)
Model ST - 60 to ST – 2000 include a heavy duty multiple link chain drive with chain tensioner. ST-20 has direct gear wheel drive. ST-2500 and upwards include direct mounted, interconnected shaft drive.
Cylinder Operated
Discharged doors
The models up to ST – 2000 are equipped with two direct acting air
cylinders on each door. From ST – 2000 and upwards one cylinder
per side activate a self activate a self locking device.
Over 2.000 Machines World Wide
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A demo mixing with STAR TRACE mixer ST - 20 (salt & color)
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Start |
After 2 Seconds |
After 5 Seconds |
After 10 Seconds |
