Centrifugal Forward Fan Box

Without sound
Soundproof
High pressure supply
Galvanized propeller and bead
Direct power transmission without belts

The Bostanchi Silent Fan Box range of Quiet in-line Centrifugal fans, offer a very quiet way to ventilate noise sensitive areas. These Quiet in-line Centrifugal fans combine the high-pressure benefits of a centrifugal fan with the reduced sound levels using sound reducing insulation to provide quiet air movement. Because they are powerful, these fans ensure that the system will move air even when the system resistance is much higher than expected. Therefore, the Silent box range is able to quietly cope with pressure drop of flexible duct as well as spiral ducting For CFDB model, the forward impeller with galvanized impeller and housing is utilized. Motors are available in single and three phases with 6 or 8 poles, depending on the model. The impeller is connected directly to the motor.

Model	A	B	C	D
CFDB-30/30-8S0.6	850	870	700	545
CFDB-30/30-6T1	850	870	700	545
CFDB-40/30-8S0.9	900	950	775	580
CFDB-40/30-8T0.9	900	950	775	580
CFDB-40/40-8S1.1	900	950	775	580
CFDB-40/40-6T2.5	900	950	775	580

Model	Fan Dia. (mm)	Voltage (V)	Motor Current(A)	Motor Power(kW)	Speed (rpm)	Air Flow (m³/h)	IP	Weight (kg)	Sound pressure level(dBA)
CFDB-30/30-8S0.6	300 x 300	220.00	3.20	0.61	670.00	4650.00	54.00	28.50	52±3
CFDB-30/30-6T1	300 x 300	380.00	1.90	0.95	850.00	5900.00	54.00	28.50	52±3
CFDB-40/30-8S0.9	400 x 300	220.00	4.50	0.88	650.00	5400.00	54.00	39.00	54±3
CFDB-40/30-8T0.9	400 x 300	380.00	2.30	0.90	660.00	5600.00	54.00	39.00	54±3
CFDB-40/40-8S1.1	400 x 400	220.00	5.20	1.10	650.00	7000.00	54.00	45.00	55±3
CFDB-40/40-6T2.5	400 x 400	380.00	4.90	2.45	850.00	9700.00	54.00	45.00	64±3