DC Backward Curve Centrifugal Fan

Model no.: LWBD 24/48V Series

Impeller SIZE: 175mm - 400mm (diameter )

Features:

Motor: BLDC Motor

Bearing Type: Ball Bearing

Impeller Material: Propylene with Glass-Fiber / Galvanized Sheet steel / Sheet aluminium.

Operating Temp: -25°C~+60°C

Voltage: 24V/48V

Type of protection: IP54, IP44

Certification: CE, UL, RoHS, CCC, ETL, etc

Advantages

-High efficiency, long life span

-Tech output, locked-rotor protection, reverse polarity, over-voltage protection, soft start protection,

-Compact design which can replace ebm fans iehl-abegg fan directly.

-Support 0-10 vdc or pwm speed control.

Model	Bearing Type	Rated Voltage	Operating Voltage	Rated Current	Rated Power	Speed	Air Flow	Air Pressure	Noise
	(B/S)	(V)	(V)	(A)	(W)	(RPM)	m³/h	Pa	dBA)
LWBD-133 48VSeries	Ball	48	36~61	0.58	28	3900	360	360	63
LWBD-133 24VSeries	Ball	24	16~28	1.15	28	3900	360	360	63
LWBD-175 48VSeries	Ball	48	36~61	1.6	75	3900	620	440	72
LWBD-175 24VSeries	Ball	24	16~28	3.1	75	3900	620	440	72
LWBD-190 48VSeries	Ball	48	36~61	1.4	65	3100	650	380	71
LWBD-190 24VSeries	Ball	24	16~28	2.6	65	3100	650	380	71
LWBD-220 48VSeries	Ball	48	36~61	0.94-2.09	45-100	2300-3100	760-950	350-680	65
LWBD-220 24VSeries	Ball	24	16~28	1.88-4.18	45-100	2300-3100	760-950	350-680	65
LWBD-225 48VSeries	Ball	48	36~61	0.94-2.1	45-100	2000-2700	830-1180	300-450	63
LWBD-225 24VSeries	Ball	24	16~28	1.88-4.2	45-100	2000-2700	830-1180	300-450	63
LWBD-250 48VSeries	Ball	48	36~61	1.25-4.2	60-120	2250-2760	990-1300	360-589	67
LWBD-250 24VSeries	Ball	24	16~28	2.1-2.5	60-120	2250-2760	990-1300	360-589	67
LWBD-280 48VSeries	Ball	48	36~61	2.3	105	2200	1400	470	70
LWBD-280 24VSeries	Ball	24	16~28	4.6	105	2200	1400	470	70
LWBD-315 48VSeries	Ball	48	36~61	2.2-4.8	105-230	1820-1930	1610-2400	360-550	65
LWBD-315 24VSeries	Ball	24	16~28	4.5-5	105-120	1600	1610-2200	360-550	67
LWBD-355 48VSeries	Ball	48	36~61	3.5-4	165-190	1410-1600	2100-2700	470-530	69
LWBD-400 48VSeries	Ball	48	36~61	3.8-4.79	180-230	1260	3000-3250	420-560	73

Mainly applications: HVACR ventilation systems, air purifier, air cleaner, AHU, FCU, etc

DC motors are around 30% more efficient than AC motors because the secondary magnetic field comes from permanent magnets rather than copper windings. An AC motor consumes additional energy solely to create a magnetic field by inducing a current in the rotor. But this is only half the story. The use of modern electronics in controlling the motor has opened up many other possibilities which contribute to using less power.

Construction:

Cowls are of galvanised steel construction.

Impellers are backward-curved centrifugal design and are of high performance composite material.

Bird-mesh guards are an optional extra.

Powder-coating is an optional extra.

FAQ:

1, Are the manufacturer ?

Yes, LONGWELL is a professional manufacturer which is the specialist in HVACR fans, motor and components for the applications of air conditioner, air ex-changer, coolers, heaters, floor convectors, sterilization purifier, air purifiers, medical purifiers, and ventilation, energy industry, 5G cabinet ...

2, Whats your production capacity ?

We are capable to produce over millions pcs fans and motors annually.

3, Where is our main market?

North America, Europe some of longwell customers are the top 1 in their application.

http://www.longwellfans.com/