Screw Press
High-Efficiency Sludge Dewatering
High-Efficiency Sludge Dewatering
Screw Press
The Wehemwater Screw Press is a state-of-the-art sludge dewatering solution combining a multi-plate screw mechanism with advanced filtration technology. Designed for municipal and industrial applications, it achieves superior solid-liquid separation with minimal energy consumption.
Continuous operation with automatic self-cleaning
Low energy consumption — up to 60% less than belt presses
Compact footprint saves up to 70% floor space
Handles 0.2% to 5% feed sludge concentration
ISO 9001 CE Marked 12-Month Warranty
Key Features & Benefits
Continuous operation with automatic self-cleaning
Low energy consumption — up to 60% less than belt presses
Compact footprint saves up to 70% floor space
Handles 0.2% to 5% feed sludge concentration
Stainless steel 304/316L construction
PLC-controlled with HMI touchscreen interface
Low noise operation below 75 dB(A)
Minimal maintenance — no filter cloth replacement
How It Works
Working Principle
The Screw Press utilizes a multi-plate filtration mechanism combined with a helical screw shaft. As sludge enters the dewatering drum, the rotating screw creates progressive compression through decreasing pitch and increasing shaft diameter. Fixed and moving rings create a self-cleaning filter that prevents clogging while water is expelled through ring gaps.
1Flocculated sludge enters the conditioning tank
2Gravity pre-thickening in the concentration section
3Progressive compression through variable-pitch screw
4Dewatered cake discharged at 20-40% DS content
Technical Specifications
| Model | Discharge Height (mm) | L (mm) | W (mm) | H (mm) | Net Weight (kg) | Operating Weight (kg) | Power (kW) | Water Consumption (L/H) |
|---|---|---|---|---|---|---|---|---|
| WHM-131 | 250 | 1860 | 700 | 915 | 205 | 300 | 0.2 | 24 |
| WHM-132 | 250 | 1905 | 830 | 915 | 275 | 425 | 0.3 | 48 |
| WHM-201 | 350 | 2555 | 920 | 1465 | 320 | 470 | 0.74 | 32 |
| WHM-202 | 350 | 2615 | 960 | 1465 | 470 | 730 | 1.11 | 64 |
| WHM-301 | 495 | 3325 | 870 | 1760 | 910 | 1320 | 1.5 | 40 |
| WHM-302 | 495 | 3455 | 1135 | 1760 | 1350 | 2130 | 2.25 | 80 |
| WHM-303 | 495 | 3670 | 1560 | 1760 | 1820 | 2880 | 3 | 120 |
| WHM-351 | 585 | 3475 | 905 | 1820 | 1610 | 2210 | 1.1 | 72 |
| WHM-352 | 585 | 3570 | 1285 | 1820 | 2300 | 3400 | 2.75 | 144 |
| WHM-353 | 585 | 3645 | 1725 | 1820 | 3350 | 4850 | 3.85 | 216 |
| WHM-354 | 585 | 4130 | 2180 | 1820 | 4500 | 6100 | 4.95 | 288 |
| WHM-401 | 759 | 3905 | 1070 | 2210 | 2500 | 3400 | 1.85 | 80 |
| WHM-402 | 759 | 4240 | 1570 | 2210 | 3480 | 5200 | 2.95 | 160 |
| WHM-403 | 759 | 4465 | 2060 | 2210 | 4550 | 7050 | 4.05 | 240 |
| WHM-404 | 759 | 4670 | 2630 | 2210 | 6550 | 9660 | 5.15 | 320 |
Capacity Selection Guide
| Model | Sludge Concentration (TS) | ||||
|---|---|---|---|---|---|
| Raw Wastewater0.2% | Waste Activated Sludge1.0% | Chemical Precipitated Sludge2.0% | Dissolved-air Flotation Sludge5.0% | Mixed Raw / Aerobic Digestion / Sewage Sludge3.0% | |
| WHM-131 | ~4kg-DS/h (~2.0m³/h) | ~6kg-DS/h (~0.6m³/h) | ~10kg-DS/h (~0.5m³/h) | ~20kg-DS/h (~0.4m³/h) | ~60kg-DS/h (~0.87m³/h) |
| WHM-132 | ~8kg-DS/h (~4.0m³/h) | ~12kg-DS/h (~1.2m³/h) | ~20kg-DS/h (~1.0m³/h) | ~40kg-DS/h (~0.8m³/h) | ~52kg-DS/h (~1.73m³/h) |
| WHM-201 | ~8kg-DS/h (~4.0m³/h) | ~12kg-DS/h (~1.2m³/h) | ~20kg-DS/h (~1.0m³/h) | ~40kg-DS/h (~0.8m³/h) | ~52kg-DS/h (~1.73m³/h) |
| WHM-202 | ~16kg-DS/h (~8.0m³/h) | ~24kg-DS/h (~2.4m³/h) | ~40kg-DS/h (~2.0m³/h) | ~80kg-DS/h (~1.6m³/h) | ~104kg-DS/h (~3.47m³/h) |
| WHM-301 | ~20kg-DS/h (~10m³/h) | ~30kg-DS/h (~3.0m³/h) | ~50kg-DS/h (~2.5m³/h) | ~100kg-DS/h (~2.0m³/h) | ~130kg-DS/h (~4.33m³/h) |
| WHM-302 | ~40kg-DS/h (~20m³/h) | ~60kg-DS/h (~6.0m³/h) | ~100kg-DS/h (~5.0m³/h) | ~200kg-DS/h (~4.0m³/h) | ~260kg-DS/h (~8.67m³/h) |
| WHM-303 | ~60kg-DS/h (~30m³/h) | ~90kg-DS/h (~9.0m³/h) | ~150kg-DS/h (~7.5m³/h) | ~300kg-DS/h (~6.0m³/h) | ~390kg-DS/h (~13m³/h) |
| WHM-351 | ~40kg-DS/h (~20m³/h) | ~60kg-DS/h (~6.0m³/h) | ~100kg-DS/h (~5.0m³/h) | ~200kg-DS/h (~4.0m³/h) | ~260kg-DS/h (~8.67m³/h) |
| WHM-352 | ~80kg-DS/h (~40m³/h) | ~120kg-DS/h (~12m³/h) | ~200kg-DS/h (~10m³/h) | ~400kg-DS/h (~8.0m³/h) | ~520kg-DS/h (~17.3m³/h) |
| WHM-353 | ~120kg-DS/h (~60m³/h) | ~180kg-DS/h (~18m³/h) | ~300kg-DS/h (~15m³/h) | ~600kg-DS/h (~12m³/h) | ~780kg-DS/h (~26m³/h) |
| WHM-354 | ~160kg-DS/h (~80m³/h) | ~240kg-DS/h (~24m³/h) | ~400kg-DS/h (~20m³/h) | ~800kg-DS/h (~16m³/h) | ~1040kg-DS/h (~34.68m³/h) |
| WHM-401 | ~70kg-DS/h (~35m³/h) | ~100kg-DS/h (~10m³/h) | ~170kg-DS/h (~8.5m³/h) | ~340kg-DS/h (~6.5m³/h) | ~442kg-DS/h (~16m³/h) |
| WHM-402 | ~135kg-DS/h (~67.5m³/h) | ~200kg-DS/h (~20m³/h) | ~340kg-DS/h (~17m³/h) | ~680kg-DS/h (~13.6m³/h) | ~884kg-DS/h (~29.5m³/h) |
| WHM-403 | ~200kg-DS/h (~100m³/h) | ~300kg-DS/h (~30m³/h) | ~510kg-DS/h (~25.5m³/h) | ~1020kg-DS/h (~20.4m³/h) | ~1326kg-DS/h (~44.2m³/h) |
| WHM-404 | ~266kg-DS/h (~133m³/h) | ~400kg-DS/h (~40m³/h) | ~680kg-DS/h (~34m³/h) | ~1360kg-DS/h (~27.2m³/h) | ~1768kg-DS/h (~58.9m³/h) |
Applications & Industries
Municipal sewage treatment
Food & beverage processing
Pharmaceutical wastewater
Paper & pulp industry
Chemical manufacturing
Oil & gas produced water
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