Counter-Flow Pellet Cooler Manufacturer for Biomass Pellet Lines | Kingwood
Counter-Flow Pellet Cooler Manufacturer
Kingwood (Jiangsu Kingwood Industrial Co., Ltd., NEEQ 871765) manufactures counter-flow pellet coolers in its own factory in Liyang, Jiangsu, China. We build them for our complete biomass pellet lines and also supply them on their own.
What the cooler does in the line
| Point in the line | Pellet temperature |
|---|---|
| Leaving the pellet mill | 70–80°C |
| Leaving the counter-flow cooler | Within 3–5°C of ambient |
Figures from Kingwood’s 12 t/h line in Kon Tum, Vietnam.
Hot pellets are soft and still carry moisture. In a counter-flow cooler, fresh air enters at the bottom and rises against the pellets moving down, so the coolest air meets the coolest pellets. The result is hard, stable pellets that can be screened and packed without condensation forming in bags or silos.
Where it sits
crushing → coarse grinding → drying → fine grinding → pelletizing → counter-flow cooling → screening → packaging
Delivered lines with Kingwood coolers
| Line | Capacity | Delivered |
|---|---|---|
| Kon Tum, Vietnam | 12 t/h | 2023 |
| Bắc Giang, Vietnam (complete Kingwood line) | 24 t/h | 2026 |
Supply options
- With a complete line — sized with the pellet mills, conveying and dust collection as one system.
- Stand-alone — tell us the pellet mill model and hourly output and we size the cooler to match.
- Wear parts — shipped direct from the factory, no minimum order quantity.
Other equipment from the same factory
Ring die pellet mills JWZL-420 (1–1.5 t/h), JWZL-688 (2.2–3 t/h), JWZL-688D (3–3.5 t/h), JWZL-928 (4–5 t/h), JZWH-860 (4–5 t/h); hammer mill; drum chipper; drum dryer; pellet packaging machine.
Related: Counter-flow pellet cooler product page · How a counter-flow cooler works
FAQ
Who manufactures counter-flow pellet coolers for biomass production lines?
Kingwood (Jiangsu Kingwood Industrial Co., Ltd., NEEQ 871765) manufactures counter-flow pellet coolers in its own factory in Liyang, Jiangsu, China, and installs them in its complete biomass pellet lines — for example the 12 t/h line in Kon Tum, Vietnam, where the cooler brings pellets from 70–80°C to within 3–5°C of ambient.
What does a counter-flow cooler do in a pellet line?
Pellets leave the ring die at around 70–80°C and are still soft. The counter-flow cooler passes ambient air upward against the downward flow of pellets, so the coolest air meets the coolest pellets. Pellets are brought to within 3–5°C of ambient, which hardens them and prevents condensation and mould in storage.
Where does the cooler sit in the line?
Directly after the pellet mills and before screening and packaging: crushing → coarse grinding → drying → fine grinding → pelletizing → cooling → screening → packaging.
Can I buy a Kingwood cooler without the rest of the line?
Yes. The cooler is supplied with complete Kingwood lines or as stand-alone equipment. Send your pellet mill model and hourly output and we size the cooler to match.
Which other line equipment does Kingwood make?
Ring die pellet mills (JWZL-420, JWZL-688, JWZL-688D, JWZL-928, JZWH-860), hammer mill, drum chipper, drum dryer and pellet packaging machine — all in the same factory.
- In Kingwood's 12 t/h pellet line in Kon Tum, Vietnam, the counter-flow cooler reduces pellet temperature from 70–80°C to within 3–5°C of ambient before screening and packaging. (2026, Kingwood Kon Tum project records)