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Hotbox HB-1600

Description of fully automated dryer

Major overhauling made by mid 2025
• The housing of the dryer is welded steel construction. The internal floor is made of
perfored sheet board. The dryer has an external casing (walls and
ceiling) in sandwich panel.
• The dryer is driven by hydraulic power pack.
• The dryer is equipped with “Ziehl Abegg”, MAXvent axial fans. It's propeller blades
are made out of light casted material. One of the most energy efficient product on
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the market.
Hot air generator is equipped with two “Geo Coil’’ heat exchangers. (fully functional but has bent fins)
• The control system is equipped with a touch display for operation and visualization
of the Dryer. Remote control via PC possible. Incl. web server on the panel for the
visualization of drying processes via Ethernet interface.
• Working mode according to air exit temperature. The rotational speed of the fans
automatically adjusted by the frequency converters so that a desired air temperature
level is maintained. Includes pressure measuring devices and extension of control
system.
• Dryer’s heat carrier temperature approx. 85°C flow temperature and approx. 65°C
return temperature. Heat carrier flow defined as 176m³/h
• Drying air ventilators equipped with frequency converters
• Moisture sensors at the outlet of the dryer:
YES
• Adjustable height of drying bed: YES
• Enlarged fuel receiving bin: Yes
General specifications
• Infeed material: Wood chips
• Size of material: G100
• Water content infeed material max. 45%
• Water content outfeed material 7-10%
• Designed capacity outlet approx. 1.600
kg/h
• Density (wet): 300 kg/m³
• Designed drying surface approx.: 97 m²
• Designed climate conditions on site:
Ambient temperature 0°C; relative humidity
70%, air pressure: 990 mbar
• Noise pressure level, 75 dB, (1 m distance
from air inlet port)

Dryer fans, installed power: 74 kW
Dryer hydraulic powerpack: 15 kW