Why it matters
Effective fines separation - in a single pass
The MT Teeter Bed Separator (TBS) is designed for fine particle classification based on size and density, if applied correctly, can replace the need for multiple spiral circuits, saving time and money and space within your plant. Using water to fluidize and closely control a bed of particles, the TBS delivers sharp separations, higher recoveries, and improved product quality across coal, mineral sands, and industrial mineral applications.
How it Works
How the Teetered Bed Separator Delivers Efficient Density Separation.
The feed enters the TBS through a central feed well that distributes slurry evenly across the unit without disturbing the teeter bed. Inside the separator, coarse and dense particles settle to form the bed, while fine and lighter particles rise and report to the overflow launder.
A network of specialised teeter water nozzles keeps the bed fluidised, allowing fine and light particles trapped within the bed to elutriate upward and exit with the overflow. The underflow consists of the denser, coarser particles and is discharged in a controlled manner.
Bed density is automatically regulated by adjusting the underflow valve, ensuring stable operation and consistent separation performance.
Effective Separation
Proven Technology. Made in Australia.
Backed by over 60 installations worldwide, the Australian-engineered TBS has proven it’s reliability globally since 2005. With a standard range of sizes to meet smaller operations, or larger throughputs upward of 300 tph.
| Sizes (Diameter) | Capacity (t/h) |
|---|---|
| 2.0 m | 80-90 |
| 2.4 m | 100-120 |
| 3.0 m | 170-180 |
| 3.65 m | 260-270 |
| 4.0 m | 310-320 |
This table is for indicative purposes only – final sizing must be confirmed based on the particle size distribution and material density specific to the operation.
Benefits
The result is a separator that not only classifies, but also enhances process efficiency and product consistency – making it a critical enabler of outcome certainty in modern mineral processing plants.
Controlled hindered settling
Particles interact within the fluidized bed, improving cut accuracy and minimizing misplaced material.
Dynamic bed pressure management
Sensors measure teeter bed density in real time, adjusting automatically to feed fluctuations for stable performance.
Sharper cut points
Unlike basic classifiers that struggle with fine or near-density material, the TBS achieves a sharper separation curve, improving product quality and recovery.
Engineered for durability
Proven material selection ensures over 10 years of performance in high-wear zones.
Unique Nozzle Design
Allows for one way water flow preventing seepage of unwanted solids into the water chamber.
Applications
The MT Teeter Bed Separator is used across multiple industries where fine particle separation is critical.
Coal Preparation
Efficiently separates high-ash from clean coal.
Mineral Sands
Upgrades heavyminerals and rejects lighter gangue.
Industrial Minerals
Provides sharp density-based classification.
Base Metals
Acts as a pre-concentration stage ahead of flotation.
Frequently asked questions
Our TBS features a unique self-closing nozzle insert that ensures even water distribution and prevents back-seepage into the teeter water chamber, maintaining consistent fluidisation and reducing maintenance.
Depending on the duty and material characteristics, we use either dart valves or pinch valves to provide precise underflow control and reliable operation across a wide range of particle sizes and densities.
Yes. While we offer a standard instrumentation package, we can customise components to align with your site standards or project requirements.
Absolutely. We have field service and process specialists located globally who can assist with installation, commissioning, and performance optimisation.
With proper operation and maintenance, TBS units typically achieve a service life exceeding 20 years, delivering long-term reliability and value.
Nicolas Boonzaier
Product Manager: Mechanical Equipment
Focus: Advanced fines processing equipment
The Expert
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