DSM or sieve-bend wedge wire screens are curved, stationary filtration panels engineered for high-capacity, zero-energy separation. In starch plants worldwide, DSM screens are critical for:
Apollo DSM Screens ensure maximum starch recovery, low fibre losses, and non-clogging performance, making them the global standard for corn, cassava, potato, and wheat starch processing.
| Application / Process | Details |
|---|---|
| Corn Wet Milling |
• Primary fibre separation – 50 µm slots • Multi-stage fibre washing – 75–100 µm • Fibre dewatering – 120–150 µm • Gluten thickening (finer slots) |
| Tapioca / Cassava, Potato & Wheat Starch |
• Fibre removal immediately after rasping • Counter-current fibre washing • Dewatering prior to refining and drying ✔ 3–6+ washing stages for >98% starch recovery |
| Section | Details |
|---|---|
| Product Name | Apollo DSM 120° Wedge Wire Screen (Pressure-Arc / Sieve-Bend) |
| Primary Application | Fibre separation, washing & dewatering in starch plants (corn, cassava, potato, wheat) |
| Working Principle | Slurry fed over curved wedge wire arc; fines pass through slots, fibres travel over crest |
| Arc Angle | 120° (standard), 45° / 60° / 270° optional |
| Radius | 762 mm semi-diameter |
| Arc Length | ~1,595 mm or custom |
| Screen Width | 585 / 710 / 730 / 825 mm (custom up to 2000 mm) |
| Slot Sizes | 50 / 75 / 100 / 120 / 150 µm (custom 30–1000 µm) |
| Cut Point | ~0.4–0.7 × slot size (e.g., 75 µm → ~50 µm cut) |
| Wire Profile | Trapezoidal V-wire, apex-facing; crest 0.5–1.5 mm; base 1.5–3 mm; height 2–4 mm |
| Materials | SS316L (std.), SS304, SS304L, Duplex 2205/2507 |
| Surface Finish | ≤ Ra 0.8 µm; electropolish & passivation optional |
| Feed Pressure | 0.2–0.4 MPa |
| Flow Capacity | 37–150 m³/hr per metre width |
| Maintenance | Quick-lock replacement, reversible screens, tool-free service |
| Certifications | MTRs, Passivation, Surface Roughness |
| Key Advantages |
|---|
|
✔ Optimised wedge wire geometry → sharp separation, no blinding ✔ Higher starch recovery in multi-stage washing ✔ Food-grade construction (304 / SS316L) ✔ Global geometry capability – custom arcs, widths, radii ✔ Long service life – strong welds, reversible panels ✔ Industry-specific metallurgy – SS316L, Duplex, 904L |
| Sr. No. | Industry / Application | Key Processes / Uses |
|---|---|---|
| 1 | Starch Industry (Primary Focus) |
• Corn wet milling: fibre separation, washing, dewatering • Tapioca/Cassava: fibre removal • Potato/Wheat: pulp separation, gluten/fibre separation Slot Range: 50–150 µm |
| 2 | Mining & Mineral Processing |
• Coal desliming, drain-and-rinse • Dewatering of iron ore, gold, phosphate • Sand & gravel classification |
| 3 | Food & Beverage |
• Sugar juice clarification • Breweries – spent grain separation • Fruit/vegetable juice recovery |
| 4 | Water & Wastewater Treatment |
• Primary screening • Sludge thickening • MBBR/MBR protection • Aquaculture screening |
| 5 | Chemical & Pulp/Paper |
• Fibre recovery from white water • Resin/catalyst recovery |
| 6 | OEM Machinery Integration |
• Pusher/peeler centrifuges • Screw presses, rotary drum filters • Self-cleaning filters • Laterals, resin traps, strainers |
