Chema Engineers High-Frequency Dewatering Screens are purpose-built for efficient moisture removal from washed sand, gravel, silica, iron ore, and fine mineral slurries. Designed to deliver superior drainage rates with minimal material loss, these screens are the core dewatering component in turnkey sand washing plants, ensuring clean, stackable output suitable for immediate dispatch.
Featuring counter-rotating vibratory motors angled at 45°, the screen bed creates a linear throwing motion at an uphill deck incline (typically 3° to 5°). As slurry discharges from the hydrocyclone underflow, water drains rapidly through high-open-area polyurethane modular screen panels, while the dewatered solids form a deep filtering bed and overflow directly onto stockpiling conveyors at 10% to 14% moisture.
Now Available in Dual-Compartment / Split-Deck Configuration:
Process two separate product gradations simultaneously (e.g. Concrete M-Sand on one lane and Plaster P-Sand on the adjacent lane) on a single compact vibrating frame, cutting plant footprint and capital cost in half.
Material is fed onto the steep rear feed chute where initial high-volume water shedding occurs. Two synchronized unbalanced vibratory exciters generate high G-forces (up to 5G), forcing water droplets to detach from sand particles through capillary disruption.
The uphill deck slope acts as an upward drainage weir: as material is driven upward toward the discharge lip, free water pools at the lowest point of the screen and drains through the PU aperture slots (0.3mm to 1.5mm). The resulting sand cake acts as its own high-efficiency filter medium, trapping fine particles down to 75 microns (200 mesh) with virtually zero loss.
| Model / Size | Deck Area (m²) | Capacity (TPH) | Motor Power (kW) | Deck Type |
|---|---|---|---|---|
| CDS-1224 | 1200 x 2400 mm (2.88 m²) | 40 - 70 TPH | 2 x 2.2 kW | Single Deck |
| CDS-1530 | 1500 x 3000 mm (4.50 m²) | 70 - 110 TPH | 2 x 3.7 kW | Single / Split Deck |
| CDS-1836 | 1800 x 3600 mm (6.48 m²) | 110 - 160 TPH | 2 x 5.5 kW | Single / Split Deck |
| CDS-2142 | 2100 x 4200 mm (8.82 m²) | 160 - 220 TPH | 2 x 7.5 kW | Split-Deck Dual Stream |
| CDS-2448 | 2400 x 4800 mm (11.52 m²) | 220 - 300+ TPH | 2 x 9.2 kW | Split-Deck Dual Stream |
| Component / System | Engineering Specification & Advantage |
|---|---|
| Vibratory Exciters | IP66 rated heavy-duty unbalance electric vibro motors. Adjustable eccentric weights allow precise G-force tuning. |
| Modular PU Screen Panels | Wear-resistant cast polyurethane panels with tapered self-relieving aperture slots. 6x to 8x lifespan over woven wire cloth. |
| Thermally Relieved Frame | Huck-bolted construction with thermally stress-relieved side plates; eliminates welded stress cracks under continuous cyclic vibration. |
| Abrasion Protection Liners | 100% polyurethane-lined discharge lips, side wall wear strips, and feed impact boxes to eliminate steel erosion. |
| Vibration Isolation | Heavy-duty rubber buffer blocks or high-tensile steel compression springs absorb 98% dynamic vibration loads away from the plant chassis. |
| Commercial Parameter | Details & Policy |
|---|---|
| Estimated Price Range | ₹3,50,000 - ₹18,00,000 (Based on deck size & motor specs, Ex-Works Satara) |
| Standard Lead Time | 2 - 3 Weeks (Standard sizes in stock at Satara factory) |
| Warranty Period | 12 Months structural frame and exciter housing guarantee |
| Delivery Terms | Ex-Works Satara / Doorstep transit insurance arranged across India |
As trusted manufacturers in Maharashtra and India, Chema Engineers provides guaranteed ex-stock dispatch of equipment and wear spares from our MIDC Satara manufacturing facility to all major mining and stone crushing belts:
