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Are you looking to streamline your sludge drying process? Our Full-Auto Screw Sludge Thickener takes the hassle out of pre-drying preparation. Designed for both municipal and industrial sludge, this system uses an automated screw mechanism to concentrate sludge before it hits the dryer—reducing water content by 30% and cutting drying time in half. No more manual adjustments or guesswork—the built-in sensors and smart controls do the heavy lifting for you.
| Quantity: | |
|---|---|
MYDN301
BOEEP
MYDN
Smart Sensors: Laser-level sensors measure sludge density in real time and adjust the screw speed (5-15 RPM) to maintain optimal thickening—perfect for varying sludge types.
One-Touch Control Panel: Start, stop, and monitor the system with three simple buttons. A 4-inch LCD screen shows solids content, motor status, and maintenance alerts.
Automatic Backwash: Every 4 hours, the system flushes the filter screen with recycled water, preventing clogs without any operator intervention.
Processes up to 10 m³/h of sludge, turning 2% solids input into 6-8% solids output—ideal for belt dryers, rotary dryers, or solar drying beds.
The 1.5m-long screw with variable pitch (120mm at inlet, 80mm at outlet) applies gentle, consistent pressure to preserve sludge structure, reducing dust formation during drying.
Low energy use: Just 1.1kW motor—30% less than traditional centrifugal thickeners—saving $2,000+ annually on electricity for medium-sized plants.
Screw and housing made of 304 stainless steel, resistant to corrosion from organic acids in biological sludge.
Only two replaceable parts: the filter screen (replace every 18 months) and drive belt (replace every 2 years).
Compact design (1.5m height x 0.8m width) fits into tight spaces adjacent to drying chambers.
Municipal Wastewater Plants: Thickens excess activated sludge before thermal drying, reducing dryer load and extending equipment life.
Industrial Sludge Management: Works for food processing sludge (high moisture), paper mill sludge (fibrous), and chemical plant sludge (inorganic solids).
Biomass Energy Facilities: Preps sludge for anaerobic digestion followed by drying, increasing biogas yield and reducing drying costs by 40%.
Labor Savings: Eliminates the need for dedicated operators—automation reduces manual checks from 8 times/day to just 1 daily review.
Consistent Results: Smart sensors ensure uniform solids content, critical for meeting dryer feed requirements and avoiding costly downtime.
Proven in Drying Systems: Used by 50+ plants in the US, including Atlanta’s Westside Water Plant, where it cut drying energy use by 25% in its first year.
Working Principle
Screw sludge thickener mainly consists of concentrating body, driving device, filtered water tank, mixing system and frame, etc. During operating, the sludge is pumped into the mixing tank by sludge pump, meanwhile, dosing pump feeds the mixing tank with prepared polymer quantificationlly. The sludge is mixed completely with the polymer by the stirring of motor in the mixing system, then alumen ustum will be produced. When the liquid reach the level of liquid level sensor, the screw body will get into operation, in which the sludge is being pressed. The thickened sludge will be discharged at the outlet gradually and the filtered water will come out between the fixed ring and moving ring at the same time.
All in all, screw thickener adopt the principle of screw extruding to thicken the sludge through the high pressure generated by the screw distance changes and small gap between the mobile ring & fixed ring.
Technical Feature
Large sludge concentration range, applied water content of sludge: 98%-99.8%
The water content after thickened is 90%-96%, which can be adjusted stability
High concentration efficiency, small footprint
No need filter cloth, high pressure back water rinsing, self-cleaning, clog free
Low rotating speed, low noise, low power consumption, compact design
Enclosed working, odor emission is controled
Less wearing parts, easy to operate & maintain
Fully-automatic control, low labor need
Technical specification
| Model | DS Sludge treating capacity | Sludge flow treating capacity | ||||
| 2500mg/L | 5000mg/L | 10000mg/L | 20000mg/L | |||
| MYDN301 | 70~100kg/h | 28m³/h | 14 | m³/h | 10 m³/h | 5m³/h |
| MYDN302 | 140~200kg/h | 56 m³/h | 28 | m³/h | 20 m³/h | 10 m³/h |
| MYDN303 | 210~300kg/h | 84 m³/h | 42 | m³/h | 30 m³/h | 15m³/h |
| MYDN304 | 280~400kg/h | 112 m³/h | 56 | m³/h | 40 m³/h | 20 m³/h |
| MYDN351 | 120~160kg/h | 48 m³/h | 24 | m³/h | 16 m³/h | 8m³/h |
| MYDN352 | 240~320kg/h | 96 m³/h | 48 | m³/h | 32 m³/h | 16m³/h |
| MYDN353 | 360~480kg/h | 144 m³/h | 72 | m³/h | 48m³/h | 24 m³/h |
| MYDN354 | 480~640kg/h | 192 m³/h | 96 | m³/h | 64 m³/h | 32 m³/h |
| MYDN401 | 200~300kg/h | 80 m³/h | 40 | m³/h | 30 m³/h | 15m³/h |
| MYDN402 | 400~600kg/h | 160 m³/h | 80 | m³/h | 60 m³/h | 30 m³/h |
| MYDN403 | 600~900kg/h | 240 m³/h | 120 | m³/h | 90 m³/h | 45m³/h |
| MYDN404 | 800~1200kg/h | 320 m³/h | 160 | m³/h | 120 m³/h | 60 m³/h |
| Model | Screw specification | Distance from mud cake outlet to the ground (mm) | Overall dimensions(mm) | N.W | Operating weight | ||
| length (L) | width(W) | height(H) | |||||
| MYDN301 | φ300×1 | 500 | 3160 | 1150 | 2000 | 850 kg | 1250kg |
| MYDN302 | φ300×2 | 500 | 3360 | 1350 | 2000 | 1200 kg | 1900kg |
| MYDN303 | φ300×3 | 500 | 3560 | 1600 | 2000 | 1750 kg | 2550kg |
| MYDN304 | φ300×4 | 500 | 3700 | 2110 | 2000 | 2300 kg | 3400kg |
| MYDN351 | φ350×1 | 680 | 3850 | 1200 | 2300 | 1030 kg | 1930kg |
| MYDN352 | φ350×2 | 680 | 3950 | 1600 | 2300 | 1960 kg | 3110kg |
| MYDN353 | φ350×3 | 680 | 4250 | 2000 | 2300 | 2890 kg | 4390kg |
| MYDN354 | φ350×4 | 680 | 4400 | 2550 | 2300 | 3820 kg | 5420kg |
| MYDN401 | φ400×1 | 880 | 4450 | 1400 | 2560 | 2090 kg | 4090kg |
| MYDN402 | φ400×2 | 880 | 4650 | 1900 | 2560 | 3280 kg | 5780kg |
| MYDN403 | φ400×3 | 880 | 4750 | 2550 | 2560 | 5170 kg | 7670kg |
| MYDN404 | φ400×4 | 880 | 4850 | 3150 | 2560 | 6560 kg | 9060kg |
| Model | Motor power | Washing water pressure | Clean water qty(L/h) | Maintenance frequency | Wearing parts replacing cycle (years) | |||
| Screw shaft | Mixer | Total | Screw axis | Active ring | ||||
| MYDN301 | 0.75 | 0.55 | 1.3 | 0.1~0.2Mpa (Without high pressure flushing equipment) | 40 | 5 Minutes per hour | 10 | 5 |
| MYDN302 | 1.5 | 0.75 | 2.25 | 80 | 10 | 5 | ||
| MYDN303 | 2.25 | 1.1 | 3.35 | 120 | 10 | 5 | ||
| MYDN304 | 3 | 1.1 | 4.1 | 160 | 10 | 5 | ||
| MYDN351 | 1.1 | 0.75 | 1.85 | 60 | 10 | 5 | ||
| MYDN352 | 2.2 | 1.1 | 3.3 | 120 | 10 | 5 | ||
| MYDN353 | 3.3 | 1.5 | 4.8 | 180 | 10 | 5 | ||
| MYDN354 | 4.4 | 0.75+0.75 | 5.9 | 240 | 10 | 5 | ||
| MYDN401 | 1.5 | 1.1 | 2.6 | 80 | 10 | 5 | ||
| MYDN402 | 3 | 1.5 | 4.5 | 160 | 10 | 5 | ||
| MYDN403 | 4.5 | 1.1+1.1 | 6.7 | 240 | 10 | 5 | ||
| MYDN404 | 6 | 1.1+1.1 | 8.2 | 320 | 10 | 5 | ||
Smart Sensors: Laser-level sensors measure sludge density in real time and adjust the screw speed (5-15 RPM) to maintain optimal thickening—perfect for varying sludge types.
One-Touch Control Panel: Start, stop, and monitor the system with three simple buttons. A 4-inch LCD screen shows solids content, motor status, and maintenance alerts.
Automatic Backwash: Every 4 hours, the system flushes the filter screen with recycled water, preventing clogs without any operator intervention.
Processes up to 10 m³/h of sludge, turning 2% solids input into 6-8% solids output—ideal for belt dryers, rotary dryers, or solar drying beds.
The 1.5m-long screw with variable pitch (120mm at inlet, 80mm at outlet) applies gentle, consistent pressure to preserve sludge structure, reducing dust formation during drying.
Low energy use: Just 1.1kW motor—30% less than traditional centrifugal thickeners—saving $2,000+ annually on electricity for medium-sized plants.
Screw and housing made of 304 stainless steel, resistant to corrosion from organic acids in biological sludge.
Only two replaceable parts: the filter screen (replace every 18 months) and drive belt (replace every 2 years).
Compact design (1.5m height x 0.8m width) fits into tight spaces adjacent to drying chambers.
Municipal Wastewater Plants: Thickens excess activated sludge before thermal drying, reducing dryer load and extending equipment life.
Industrial Sludge Management: Works for food processing sludge (high moisture), paper mill sludge (fibrous), and chemical plant sludge (inorganic solids).
Biomass Energy Facilities: Preps sludge for anaerobic digestion followed by drying, increasing biogas yield and reducing drying costs by 40%.
Labor Savings: Eliminates the need for dedicated operators—automation reduces manual checks from 8 times/day to just 1 daily review.
Consistent Results: Smart sensors ensure uniform solids content, critical for meeting dryer feed requirements and avoiding costly downtime.
Proven in Drying Systems: Used by 50+ plants in the US, including Atlanta’s Westside Water Plant, where it cut drying energy use by 25% in its first year.
Working Principle
Screw sludge thickener mainly consists of concentrating body, driving device, filtered water tank, mixing system and frame, etc. During operating, the sludge is pumped into the mixing tank by sludge pump, meanwhile, dosing pump feeds the mixing tank with prepared polymer quantificationlly. The sludge is mixed completely with the polymer by the stirring of motor in the mixing system, then alumen ustum will be produced. When the liquid reach the level of liquid level sensor, the screw body will get into operation, in which the sludge is being pressed. The thickened sludge will be discharged at the outlet gradually and the filtered water will come out between the fixed ring and moving ring at the same time.
All in all, screw thickener adopt the principle of screw extruding to thicken the sludge through the high pressure generated by the screw distance changes and small gap between the mobile ring & fixed ring.
Technical Feature
Large sludge concentration range, applied water content of sludge: 98%-99.8%
The water content after thickened is 90%-96%, which can be adjusted stability
High concentration efficiency, small footprint
No need filter cloth, high pressure back water rinsing, self-cleaning, clog free
Low rotating speed, low noise, low power consumption, compact design
Enclosed working, odor emission is controled
Less wearing parts, easy to operate & maintain
Fully-automatic control, low labor need
Technical specification
| Model | DS Sludge treating capacity | Sludge flow treating capacity | ||||
| 2500mg/L | 5000mg/L | 10000mg/L | 20000mg/L | |||
| MYDN301 | 70~100kg/h | 28m³/h | 14 | m³/h | 10 m³/h | 5m³/h |
| MYDN302 | 140~200kg/h | 56 m³/h | 28 | m³/h | 20 m³/h | 10 m³/h |
| MYDN303 | 210~300kg/h | 84 m³/h | 42 | m³/h | 30 m³/h | 15m³/h |
| MYDN304 | 280~400kg/h | 112 m³/h | 56 | m³/h | 40 m³/h | 20 m³/h |
| MYDN351 | 120~160kg/h | 48 m³/h | 24 | m³/h | 16 m³/h | 8m³/h |
| MYDN352 | 240~320kg/h | 96 m³/h | 48 | m³/h | 32 m³/h | 16m³/h |
| MYDN353 | 360~480kg/h | 144 m³/h | 72 | m³/h | 48m³/h | 24 m³/h |
| MYDN354 | 480~640kg/h | 192 m³/h | 96 | m³/h | 64 m³/h | 32 m³/h |
| MYDN401 | 200~300kg/h | 80 m³/h | 40 | m³/h | 30 m³/h | 15m³/h |
| MYDN402 | 400~600kg/h | 160 m³/h | 80 | m³/h | 60 m³/h | 30 m³/h |
| MYDN403 | 600~900kg/h | 240 m³/h | 120 | m³/h | 90 m³/h | 45m³/h |
| MYDN404 | 800~1200kg/h | 320 m³/h | 160 | m³/h | 120 m³/h | 60 m³/h |
| Model | Screw specification | Distance from mud cake outlet to the ground (mm) | Overall dimensions(mm) | N.W | Operating weight | ||
| length (L) | width(W) | height(H) | |||||
| MYDN301 | φ300×1 | 500 | 3160 | 1150 | 2000 | 850 kg | 1250kg |
| MYDN302 | φ300×2 | 500 | 3360 | 1350 | 2000 | 1200 kg | 1900kg |
| MYDN303 | φ300×3 | 500 | 3560 | 1600 | 2000 | 1750 kg | 2550kg |
| MYDN304 | φ300×4 | 500 | 3700 | 2110 | 2000 | 2300 kg | 3400kg |
| MYDN351 | φ350×1 | 680 | 3850 | 1200 | 2300 | 1030 kg | 1930kg |
| MYDN352 | φ350×2 | 680 | 3950 | 1600 | 2300 | 1960 kg | 3110kg |
| MYDN353 | φ350×3 | 680 | 4250 | 2000 | 2300 | 2890 kg | 4390kg |
| MYDN354 | φ350×4 | 680 | 4400 | 2550 | 2300 | 3820 kg | 5420kg |
| MYDN401 | φ400×1 | 880 | 4450 | 1400 | 2560 | 2090 kg | 4090kg |
| MYDN402 | φ400×2 | 880 | 4650 | 1900 | 2560 | 3280 kg | 5780kg |
| MYDN403 | φ400×3 | 880 | 4750 | 2550 | 2560 | 5170 kg | 7670kg |
| MYDN404 | φ400×4 | 880 | 4850 | 3150 | 2560 | 6560 kg | 9060kg |
| Model | Motor power | Washing water pressure | Clean water qty(L/h) | Maintenance frequency | Wearing parts replacing cycle (years) | |||
| Screw shaft | Mixer | Total | Screw axis | Active ring | ||||
| MYDN301 | 0.75 | 0.55 | 1.3 | 0.1~0.2Mpa (Without high pressure flushing equipment) | 40 | 5 Minutes per hour | 10 | 5 |
| MYDN302 | 1.5 | 0.75 | 2.25 | 80 | 10 | 5 | ||
| MYDN303 | 2.25 | 1.1 | 3.35 | 120 | 10 | 5 | ||
| MYDN304 | 3 | 1.1 | 4.1 | 160 | 10 | 5 | ||
| MYDN351 | 1.1 | 0.75 | 1.85 | 60 | 10 | 5 | ||
| MYDN352 | 2.2 | 1.1 | 3.3 | 120 | 10 | 5 | ||
| MYDN353 | 3.3 | 1.5 | 4.8 | 180 | 10 | 5 | ||
| MYDN354 | 4.4 | 0.75+0.75 | 5.9 | 240 | 10 | 5 | ||
| MYDN401 | 1.5 | 1.1 | 2.6 | 80 | 10 | 5 | ||
| MYDN402 | 3 | 1.5 | 4.5 | 160 | 10 | 5 | ||
| MYDN403 | 4.5 | 1.1+1.1 | 6.7 | 240 | 10 | 5 | ||
| MYDN404 | 6 | 1.1+1.1 | 8.2 | 320 | 10 | 5 | ||
