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 Wood Chips Dryer
The three pass wood chips rotary dryer is usually used to dry wood chips, sawdust and wood shavings, wood powder, etc. It efficiently reduces moisture content from 60% in raw materials to less than 12% in the final product. Compared with the traditional dryer, this advanced three-pass design reduces floor space requirements by 50% while significantly enhancing overall drying efficiency.
The complete wood chips dryer system includes heating part, feeding machine, rotary dryer, discharging machine and cyclone dust collector. The processed wood chips are ideal for pelletizing, carbonization, boiler combustion, gasification, and power generation. To provide a comprehensive one-stop solution, we also offer fully integrated Drying and Pelleting Plants.
Advantages of Wood Chips Dryer
01
High Efficiency
The three-pass structure and counter-current design maximize thermal energy utilization, cutting equipment length by 50% and saving about 40% of infrastructure costs.
02
Multiple Heat Sources
Customers can choose the heating source that fits their needs, and we can design customized solutions.
03
Uniform Drying
Multiple spreads and long residence times ensure uniform moisture content throughout the wood chips.
04
Intelligent & Automated
Integrated PLC control and real-time video monitoring ensure a high level of automation and continuous production with minimal manual intervention.
05
Precision Sealing
A unique, precision-engineered sealing structure effectively eliminates heat leakage.
06
Precise Moisture Control
Material flow speed is controlled by frequency conversion, so the final moisture is easily controlled to meet your needs.
Working Principle of Wood Chips Dryer
Brief Workflow
1. Material Feeding & Thermal Intake
Wet wood chips are introduced via a dedicated feeder. Simultaneously, high-temperature hot air enters from the discharge end, establishing a counter-current flow.
2. Three-Pass Drying
First Pass (outer drum, counter-current): The wood chip makes direct contact with high-temperature air, evaporating water rapidly.
Second Pass (middle channel, counter-current): Semi-dry chips continue through a reverse flow, ensuring consistent, deep-layer dehydration.
Third Pass (inner channel, co-current): As the chips reach near-dry status, they travel alongside lower-temperature exhaust gases. This co-current phase allows for gentle final drying, preventing product degradation or over-drying.
3. Discharge and Dust Removal
The dried wood chips are discharged from the discharge end. Meanwhile, the low-temperature exhaust gas is purified and de-dusted via a filtration system before being released.
Specifications of Wood Chips Dryer
| Device Specification | DDJG1210 | DDJG1410 | DDJG1610 | DDJG2010/3 | DDJG2210/3 | DDJG2510/3 | DDJG2512/3 | DDJG2912/3 |
| Daily Processing Capacity(t/d) | 33.6 | 40.8 | 58.9 | 131.4 | 145.0 | 167.7 | 204.0 | 247.0 |
| Daily Output(t/d) | 15.6 | 19.2 | 27.7 | 61.8 | 68.2 | 78.9 | 96.0 | 116.2 |
| Water Evaporation Capacity (t/h) | 0.75 | 0.90 | 1.30 | 2.90 | 3.20 | 3.70 | 4.50 | 5.45 |
| Raw Material Water Content(%) | 60-80 | 60-80 | 60-80 | 60-80 | 60-80 | 60-80 | 60-80 | 60-80 |
| Dried Material Water Content(%) | 12-15（adjustable） | 12-15（adjustable） | 12-15（adjustable） | 12-15（adjustable） | 12-15（adjustable） | 12-15（adjustable） | 12-15（adjustable） | 12-15（adjustable） |
| Drying Temperature(℃) | 350-550 | 350-550 | 350-550 | 350-550 | 350-550 | 350-550 | 350-550 | 350-550 |
| Total Weight(kg) | 32 | 40 | 55 | 95 | 100 | 125 | 145 | 165 |
| Plant Area(㎡) | 15000 | 17000 | 21500 | 26500 | 28500 | 370000 | 41000 | 45500 |
| Device Specification(m) | 5*14 | 5*14 | 6*16 | 8*16 | 8*16 | 10*16 | 10*18 | 10*20 |
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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- 600+
- Projects Worldwide
With drying projects running across the globe, Dongding has earned long-term trust through reliable quality and responsive after-sales service.
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.
