A:
All Dongding dryers come with a 12-month warranty covering parts and workmanship from the date of commissioning. Lifetime technical support and spare parts supply are provided.
Introduction of Screw Press Dewatering Machine
A screw-type press dewatering machine is a continuous mechanical dewatering device widely used for solid-liquid separation. It utilizes the rotating helical shaft to convey the material within a closed cylindrical screen. During conveyance, the material is subjected to increasing pressure (primarily) and filtration through the screen (secondarily), squeezing out free water and some bound water. This process achieves solid dewatering (volume reduction) and liquid recovery. Based on the characteristics of the raw material and requirements for dewatering, our company has single-shaft, double-shaft, and triple-shaft screw press dewatering for customers to choose. It features with high strength, high pressure bearing, no deformation, no clogging, corrosion resistance, wear resistance, no slipping, easy maintenance, and long service life, etc.
Advantages of Screw Press Dewatering Machine
01
Integrated Crushing & Pressing
An internal propeller integrates crushing and pressing, saving space and cost.
02
Even & Uniform Feeding
A specially structured feeding plate and screw-blade device ensure the raw material is transported evenly and pressed uniformly.
03
Energy-Saving Extrusion
Superimposed compression achieves efficient extrusion with low power consumption.
04
Durable Stainless Filter
A wear-resistant, corrosion-resistant stainless-steel filter provides durability and good filtration performance.
05
Customized Solutions
Sieves vary to suit different raw materials.
06
Multiple Choice
Single shaft and double shaft series for your selection.
Working Principle of Screw Press Dewatering Machine
The screw press dehydrator is composed of a feed box, a screw sieve, a water filter frame, a filter base, a motor, and a reducer, etc.The raw material with high water content is fed evenly from the feed box and moves along the axis to the discharge port under the push of the spiral rotating blade. Under the huge extrusion force generated by interactions between changing screw pitch, screw and the adjusting baffle, the material is dehydrated fully. The water is discharged through the screen at the water outlet, and the dehydrated material is discharged at the discharge port.
Specifications of Screw Press Dewatering Machine
| Model | DDTH250 | DDTH300 | DDTHT350 | DDTH400 | DDTH450 | DDTH500 |
| Power (kw) | 7.5 | 11 | 15 | 18.5 | 22 | 30 |
| Speed Range (r/min) | 125-1250 | 125-1250 | 125-1250 | 125-1250 | 125-1250 | 125-1250 |
| Weight (t) | 0.75 | 1.1 | 1.5 | 2.0 | 3.5 | 5.0 |
| Capacity (t/d) | 40 | 70 | 90 | 120 | 160 | 200 |
| Floor Area (㎡） | 2.1 | 2.1 | 2.1 | 5.04 | 5.04 | 5.04 |
Notice:
1. Any change of technical data shall not be advised additionally.
2. Parameters above are for reference; final configuration is tailored to your material and capacity.
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Frequently Asked Questions
Common questions about our rotary dryers — pricing, customization, installation and after-sales.
A:
Please share your raw material, initial and target moisture content, required capacity (t/h), available fuel or heat source, and your target market. With these details our engineers can recommend the right model and send an accurate quotation.
A:
As a manufacturer, we accept orders starting from a single machine. We can also deliver complete drying production lines with auxiliary equipment such as hot air furnaces and dust collectors. Contact us for tailored pricing.
A:
Standard models are usually delivered within 25-40 days after the deposit. Customized machines or larger production lines may take longer depending on the configuration. The exact schedule is confirmed in your contract.
A:
Yes. Every dryer is engineered around your material, capacity, moisture and site layout. Heat source, material of construction, dust collection and automation level can all be customized to your process.
A:
Yes. We provide installation guidance, commissioning, operator training and lifetime after-sales support. Our engineers can also travel to your site, and all equipment comes with a warranty.
