Hydrosizer (Density Classifier)
Fluidized teeter-bed hydraulic classification system designed to control Fineness Modulus (FM ±0.1), eliminate lignite/organics, and produce tightly graded sand fractions for glass, concrete, and frac sand applications.
Engineered for producers selling on purity — stripping surface contaminants so your sand meets strict lab report thresholds.
Raw silica feed carries iron oxide coatings, clay films, and organic contamination that gravity washing alone leaves behind. This plant integrates mechanical attrition scrubbing ahead of classification specifically to scour surface contamination, ensuring your final output consistently meets the tighter SiO₂ and Fe₂O₃ spec limits demanded by glass, foundry, and ceramic buyers.
DISCUSS YOUR PROJECT99.4%+ SiO₂ Purity
Mechanical scrubbing strips iron-oxide and clay films gravity washing misses.
Tight Spec Control
Hydrocyclone classification maintains exact gradation bands on every batch.
<8% Moisture Output
Dewatering stage reduces stockpile moisture, cutting transport weight and drying fuel.
MACHINERY SPECIFICATIONS
| Parameter | Specification |
|---|---|
| Processing Capacity | 30 to 120 Tons Per Hour (t/h) |
| Particle Size Cut Range | 0.1 mm to 2.0 mm (140 mesh to 10 mesh) |
| Teeter Water Requirement | 30 to 80 m³/h at 0.15 MPa steady pressure |
| Fineness Modulus Control | ±0.1 FM Tolerance |
| Control System | Siemens / Allen-Bradley PLC with HMI Touchscreen Display |
| Vessel Construction | Heavy Structural Steel with Epoxy / PU Internal Coating |
| Underflow Actuators | Pneumatic Dart Valves with Positioner Feedback |
INDUSTRIES THIS PLANT SERVES
High-Purity Glass Grade Silica Sand Sizing
Concrete Sand Fineness Modulus (FM) Control
Hydraulic Fracturing (Frac Sand) Particle Sizing
Removal of Lignite, Coal & Lightweight Organics from Sand
Beach Sand
China Clay & Kaolin
Foundry Sand
Frac Sand & Proppant
Heavy Mineral Sands
Alluvial Gold
GOT QUESTIONS? WE HAVE ANSWERS.
Q·01 How accurately can the Hydrosizer control sand Fineness Modulus (FM)?
The automated PID teeter-bed density control system maintains FM within an ultra-tight ±0.1 tolerance despite fluctuations in raw feed gradation.
Q·02 How does the teeter bed classification principle work?
Water injected upward through a bottom manifold fluidizes sand into a dense teeter bed. Coarse/dense particles sink through the bed into the underflow, while fine/light particles float to the overflow.
Q·03 Can the Hydrosizer remove lightweight contaminants like coal or lignite?
Yes, because it operates on density separation, low-density lignite, wood, and shale float to the top overflow even if their size matches the sand underflow.
Q·04 What water supply conditions are required for fluidization?
Requires 30 to 80 m³/h of clean, steady-pressure water (0.15-0.2 MPa) distributed evenly across the bottom jet manifold.
REQUEST PLANT SPECIFICATIONS & PRICING
Connect with our engineering team
Tell us your requirements — we'll prepare a custom plant proposal for your site.
"Vyom is an outstanding engineering partner for sand washing plants. Commissioning was fast, and the fines recovery efficiency exceeded our performance targets."
Let's build together.