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Duct-M • Axial fans

Cased axial duct fan
Until 125.000 m³/h
Short, middle or long case
IP55

Datasheet Drawings / PDF

Axial fan with long housing

Application

General ventilation, cooling, climate control, harvesting of crops, ventilation in chemical processes and fire ventilation

Composition

The steel housing is fully galvanized after manufacture. The flanges are an integral part of the housing and are provided with bolt holes
The screw is of the type with adjustable blade angle when stationary. It is balanced according to ISO 1940-1986 - Grade G 6.3. The distance between the screw and the fan housing must not exceed 0.6% of the screw diameter. The propeller blades have an aerofoil profile
The core and the propeller blades are cast from an aluminum alloy and are checked with X-rays for cavities and structural defects
The motor is of the asynchronous cage anchor type, fully closed and with overheat protection
Voltage: 230Vac 1ph 50Hz or 400Vac 3ph 50Hz
Protection IP55 - Insulation class F
Standard engine connection NOT brought to the outside (provide acces panel for accesibility to engine connections)

Options

Outer Terminal Box (engine connection brought to the outsidet)
ATEX II 2G IIB T4 version (DUCT-M ATEX)
RWA fire fans 300°C/2h - 400°C/2h (DUCT-M HT)
Two-speed engines
Stainless steel version

Accessories

Silencers, support feet, vibration dampers, counter flanges, flexible sleeves, round check valve, protective grilles, inlet cone
Electronic speed controller, speed controller with transformer and frequency converters

Text for tender

Cased axial fans used for large air capacities with relatively low pressures are required in duct mounted applications, Cairox type DUCT-M

Order example

DUCT-M 314/4M-A + FC-DU + AV + CF-DU

Explanation:

DUCT-M = Type of cased axial fan

M = Type of case lenght; M = middle, S = Short; L = Long

31 = Hub size

4 = Number of poles; 2 - 3000rpm; 4 - 1500rpm; 6 - 1000rpm; 8 - 750rpm

M = Monophase; T = Threephase

A = Type of motor

FC-DU = Flexible connection

AV = Antivibration mounts

CF-DU = Coiunter flange

Prices

Prices are available upon request. Please include the following information in your price request in order to make you a compliant offer:

Airflow rate [m³/h]
External pressure drop required [Pa]
Free intake or channel connection

Selection curves

Performance shown in the selection curves refer to air at 15°C temperature and 0 metres above sea level and they were obtained in installation type D with no grid nor accessories
1 mm H₂O = 9,8 Pa

Technical data

Type	Flow rate [m³/h]	Power [kW]	Max. current [A]	Mot [H]	Sound pressure [dB(A)]
2 poles (3000 rpm) - single-phase (1Ph-230V 50 Hz)
312/A M	3500	0,25	1,7	63	70
2 poles (3000 rpm) - three-phase (3Ph-400V 50 Hz)
312/A T	3500	0,25	0,7	63	70
352/A T	5250	0,55	1,6	71	74
402/A T	8200	1,1	2,6	80	79
4 poles (1500 rpm) - single-phase (1Ph-230V 50 Hz)
314/A M	2300	0,09	1	56	52
354/A M	3200	0,09	1	56	56
4 poles (1500 rpm) - three-phase (3h-400V 50 Hz)
314/A T	2300	0,09	0,4	56	52
354/A T	3200	0,09	0,4	56	56
404/B T	5200	0,18	0,6	63	62
454/A T	6500	0,25	0,8	71	65
454/B T	7600	0,37	1,2	71	66
504/B T	9000	0,55	1,6	80	69
564/B T	12500	0,75	2	80	72
634/A T	13000	0,75	2	80	75
634/B T	16000	1,1	2,8	90	76
634/C T	17000	2,2	5	100	76
714/A T	17000	1,5	3,5	90	77
714/B T	20500	2,2	5	100	77
714/C T	18500	2,2	5	100	77
714/D T	23500	3	6,5	100	79
804/A T	24000	3	6,5	100	78
804/B T	29000	4	8,2	112	79
804/C T	35000	5,5	11	132	80
804/D T	40000	7,5	15	132	80
904/A T	38000	5,5	11	132	85
904/B T	43000	7,5	15	132	86
904/C T	47000	7,5	15	132	86
904/D T	52500	9,2	18	132	86
1004/A T	41000	5,5	11	132	88
1004/B T	50000	7,5	15	132	89
1004/C T	59000	11	21	160	89
1004/D T	65000	15	27,8	160	90
1004/E T	72500	18,5	32,6	180	90
1124/A T	80000	18,5	32,6	180	93
1124/B T	87000	22	38,8	180	94
1124/C T	100000	30	53	200	94
1254/A T	95000	22	38,8	180	97
1254/B T	110000	30	53	200	98
1254/C T	125000	37	64	225	98
6 poles (1000 rpm) - three-phase (3Ph-400V 50 Hz)
560/A T	8500	0,25	1	71	62
636/A T	12500	0,37	1,3	80	66
636/B T	14000	0,75	2,2	90	65
716/A T	16000	0,75	2,2	90	67
716/B T	17000	1,1	3	90	66
806/A T	16000	0,75	2,2	90	68
806/B T	19000	1,1	3	90	68
806/C T	22500	1,5	4	100	69
906/A T	25000	1,5	4	100	75
906/B T	29000	2,2	5	112	75
906/C T	32000	2,2	5	112	75
1006/A T	27000	1,5	4	100	79
1006/B T	33000	2,2	5	112	79
1006/C T	41000	3	7	132	80
1126/B T	45000	4	9	132	83
1126/C T	54000	5,5	12	132	83
1256/B T	61000	7,5	15	160	87
1256/C T	73000	11	22	160	88
1256/D T	85000	11	22	160	88
1406/A T	115000	18,5	35	200	91
8 poles (750 rpm) - three-phase (3Ph-400V 50 Hz)
568/A T	6000	0,12	0,7	71	56
908/A T	17000	0,75	2,3	100	69
908/B T	20500	0,75	2,3	100	69
1008/A T	20500	0,75	2,3	100	74
1008/B T	25000	1,1	3,4	100	74
1128/C T	40500	2,2	5,5	132	77
1258/A T	34500	2,2	5,5	132	81
1258/B T	43000	3	7,3	132	81
1258/C T	52000	4	9,3	160	82
1258/D T	59000	4	9,3	160	82
1408/A T	87000	7,5	14,7	160	85

Sound data

2 poles
[Hz]	63	125	250	500	1k	2k	4k	8k	Tot.
312/A - 0,25 kW	52	61	62	63	64	62	56	47	70
4 poles
[Hz]	63	125	250	500	1k	2k	4k	8k	Tot.
314/A - 0,12 kW	34	43	45	46	47	44	38	29	52
354/A - 0,12 kW	38	47	49	50	51	48	42	33	56
504/B - 0,58 kW	51	60	62	62	63	60	55	45	69
564/B - 0,75 kW	54	63	65	66	67	64	58	49	72
634/A - 0,75 kW	57	66	68	69	70	67	61	52	75
634/B - 1,1 kW	53	67	69	69	70	67	62	52	76
634/C - 2,2 kW	53	66	69	69	70	67	62	52	76
714/A - 1,5 kW	59	68	70	70	71	68	63	53	77
714/B - 2,2 kW	60	68	70	71	72	69	63	54	77
714/C - 2,2 kW	59	68	70	70	71	68	63	53	77
714/D - 3 kW	59	68	70	71	72	69	63	54	77
804/A - 3 kW	60	70	71	72	73	70	64	55	78
804/B - 4 kW	60	70	71	72	73	70	64	55	79
804/C - 5,5 kW	61	70	72	73	74	71	65	56	80
804/D - 7,5 kW	61	70	72	73	74	71	65	56	80
904/A - 5,5 kW	67	76	78	79	80	77	71	62	85
904/B - 7,5 kW	68	77	79	79	80	77	72	62	86
904/C - 7,5 kW	68	77	79	79	80	77	72	62	86
904/D - 9,2 kW	68	77	79	79	80	77	72	62	86
1004/A - 5,5 kW	70	79	82	82	83	80	74	65	88
1004/B - 7,5 kW	71	80	82	83	84	81	75	66	89
1004/C - 11 kW	71	80	82	83	84	81	75	66	89
1004/D - 15 kW	72	81	83	83	84	81	75	66	90
1004/E - 18,5 kW	72	81	83	83	84	81	76	66	90
1124/A - 18,5 kW	75	84	86	87	88	85	79	70	93
1124/B - 22 kW	76	85	87	87	88	85	80	70	94
1124/C - 30 kW	76	85	87	87	88	85	80	70	94
1254/A - 22 kW	79	88	90	91	92	89	83	74	97
1254/B - 31 kW	80	88	91	91	92	89	84	74	98
1254/C - 37 kW	80	88	91	91	92	89	84	74	98
6 poles
[Hz]	63	125	250	500	1k	2k	4k	8k	Tot.
566/A - 0,25 kW	44	53	55	55	46	54	48	39	62
636/A - 0,37 kW	48	57	59	59	60	57	52	62	66
636/B - 0,75 kW	47	56	58	58	60	57	51	42	65
716/A - 0,75 kW	49	58	60	60	61	58	53	43	67
716/B - 1,1 kW	48	57	57	60	61	58	52	43	66
806/A - 0,75 kW	50	53	61	61	62	59	54	44	68
806/B - 1,1 kW	50	53	61	61	62	52	54	44	68
806/C - 1,5 kW	50	59	63	62	63	60	54	45	69
906/A - 1,5 kW	56	65	63	68	69	66	60	51	74
906/B - 2,2 kW	57	66	68	68	69	66	61	51	75
906/C - 2,2 kW	57	66	67	68	69	66	61	51	75
1006/A - 1,5 kW	61	70	72	72	73	70	65	55	79
1006/B - 2,2 kW	61	70	72	72	73	71	65	56	79
1006/C - 3 kW	61	70	73	73	74	71	65	56	80
1126/B - 4 kW	65	74	76	76	77	74	69	60	83
1126/C - 5,5 kW	68	77	79	80	81	78	72	63	86
1256/B - 7,5 kW	69	78	80	80	81	78	73	63	87
1256/C - 11 kW	70	78	80	81	82	79	73	64	88
1256/D - 11 kW	70	78	80	81	82	79	73	64	88
1406/A - 18,5 kW	73	82	84	84	85	82	77	67	91
8 poles
[Hz]	63	125	250	500	1k	2k	4k	8k	Tot.
568/A - 0,12 kW	38	47	49	49	50	48	42	33	56
908/A - 0,75 kW	51	60	62	63	64	61	55	46	69
908/B - 0,75 kW	51	60	62	63	64	61	55	46	69
1008/A - 0,75 kW	55	64	66	67	68	65	60	50	74
1008/B - 1,1 kW	56	64	67	67	68	65	60	50	74
1128/C - 2,2 kW	59	68	70	71	72	69	63	54	77
1258/A - 2,2 kW	63	72	74	75	76	73	67	58	81
1258/B - 3 kW	63	72	74	75	76	73	67	58	81
1258/C - 4 kW	63	72	75	75	76	73	68	58	82
1258/D - 4 kW	63	72	75	75	76	73	68	58	82
1408/A - 7,5 kW	67	76	78	82	79	76	71	61	85

Sound pressure level is measured in free field at 3 m from the fan, in any direction, with ducted inlet and outlet.

Octave band centre frequency

2 poles
[Hz]	63	125	250	500	1k	2k	4k	8k	Tot.
312/A - 0,25 kW	52	61	62	63	64	62	56	47	70
4 poles
[Hz]	63	125	250	500	1k	2k	4k	8k	Tot.
314/A - 0,12 kW	34	43	45	46	47	44	38	29	52
354/A - 0,12 kW	38	47	49	50	51	48	42	33	56
504/B - 0,58 kW	51	60	62	62	63	60	55	45	69
564/B - 0,75 kW	54	63	65	66	67	64	58	49	72
634/A - 0,75 kW	57	66	68	69	70	67	61	52	75
634/B - 1,1 kW	53	67	69	69	70	67	62	52	76
634/C - 2,2 kW	53	66	69	69	70	67	62	52	76
714/A - 1,5 kW	59	68	70	70	71	68	63	53	77
714/B - 2,2 kW	60	68	70	71	72	69	63	54	77
714/C - 2,2 kW	59	68	70	70	71	68	63	53	77
714/D - 3 kW	59	68	70	71	72	69	63	54	77
804/A - 3 kW	60	70	71	72	73	70	64	55	78
804/B - 4 kW	60	70	71	72	73	70	64	55	79
804/C - 5,5 kW	61	70	72	73	74	71	65	56	80
804/D - 7,5 kW	61	70	72	73	74	71	65	56	80
904/A - 5,5 kW	67	76	78	79	80	77	71	62	85
904/B - 7,5 kW	68	77	79	79	80	77	72	62	86
904/C - 7,5 kW	68	77	79	79	80	77	72	62	86
904/D - 9,2 kW	68	77	79	79	80	77	72	62	86
1004/A - 5,5 kW	70	79	82	82	83	80	74	65	88
1004/B - 7,5 kW	71	80	82	83	84	81	75	66	89
1004/C - 11 kW	71	80	82	83	84	81	75	66	89
1004/D - 15 kW	72	81	83	83	84	81	75	66	90
1004/E - 18,5 kW	72	81	83	83	84	81	76	66	90
1124/A - 18,5 kW	75	84	86	87	88	85	79	70	93
1124/B - 22 kW	76	85	87	87	88	85	80	70	94
1124/C - 30 kW	76	85	87	87	88	85	80	70	94
1254/A - 22 kW	79	88	90	91	92	89	83	74	97
1254/B - 31 kW	80	88	91	91	92	89	84	74	98
1254/C - 37 kW	80	88	91	91	92	89	84	74	98
6 poles
[Hz]	63	125	250	500	1k	2k	4k	8k	Tot.
566/A - 0,25 kW	44	53	55	55	46	54	48	39	62
636/A - 0,37 kW	48	57	59	59	60	57	52	62	66
636/B - 0,75 kW	47	56	58	58	60	57	51	42	65
716/A - 0,75 kW	49	58	60	60	61	58	53	43	67
716/B - 1,1 kW	48	57	57	60	61	58	52	43	66
806/A - 0,75 kW	50	53	61	61	62	59	54	44	68
806/B - 1,1 kW	50	53	61	61	62	52	54	44	68
806/C - 1,5 kW	50	59	63	62	63	60	54	45	69
906/A - 1,5 kW	56	65	63	68	69	66	60	51	74
906/B - 2,2 kW	57	66	68	68	69	66	61	51	75
906/C - 2,2 kW	57	66	67	68	69	66	61	51	75
1006/A - 1,5 kW	61	70	72	72	73	70	65	55	79
1006/B - 2,2 kW	61	70	72	72	73	71	65	56	79
1006/C - 3 kW	61	70	73	73	74	71	65	56	80
1126/B - 4 kW	65	74	76	76	77	74	69	60	83
1126/C - 5,5 kW	68	77	79	80	81	78	72	63	86
1256/B - 7,5 kW	69	78	80	80	81	78	73	63	87
1256/C - 11 kW	70	78	80	81	82	79	73	64	88
1256/D - 11 kW	70	78	80	81	82	79	73	64	88
1406/A - 18,5 kW	73	82	84	84	85	82	77	67	91
8 poles
[Hz]	63	125	250	500	1k	2k	4k	8k	Tot.
568/A - 0,12 kW	38	47	49	49	50	48	42	33	56
908/A - 0,75 kW	51	60	62	63	64	61	55	46	69
908/B - 0,75 kW	51	60	62	63	64	61	55	46	69
1008/A - 0,75 kW	55	64	66	67	68	65	60	50	74
1008/B - 1,1 kW	56	64	67	67	68	65	60	50	74
1128/C - 2,2 kW	59	68	70	71	72	69	63	54	77
1258/A - 2,2 kW	63	72	74	75	76	73	67	58	81
1258/B - 3 kW	63	72	74	75	76	73	67	58	81
1258/C - 4 kW	63	72	75	75	76	73	68	58	82
1258/D - 4 kW	63	72	75	75	76	73	68	58	82
1408/A - 7,5 kW	67	76	78	82	79	76	71	61	85

Sound pressure level is measured in free field at 3 m from the fan, in any direction, with ducted inlet and outlet.

Dimensions

	ØA [mm]	B [mm]	B1 [mm]	B2 [mm]	C [mm]	ØD	E [mm]	F [mm]	G [mm]	Kg (Ms)	Kg (Mm)	Kg (Ml)
31	310	260	260	400	355	390	250/320	8	10	13/17	13/17	13/19
35	360	260	260	400	395	430	250/320	8	10	14/19	14/19	14/22
40	410	260	260	400	450	490	300/380	8	12	16/24	16/24	19/27
45	460	260	260	450	500	540	350/390	8	12	21/30	21/30	23/33
50	510	260	260	450	560	600	350/390	12	12	24/35	24/35	27/38
56	570	260	260	450	620	655	350/390	12	12	28/37	28/37	34/43
63	640	260	350	500	690	725	400/490	12	12	34/51	37/54	44/61
71	710	260	350	600	770	805	400/490	16	12	41/62	44/67	53/77
80	810	350	450	600	860	905	450/610	16	12	50/105	54/110	60/115
90	910	350	450	700	970	1010	450/690	16	16	80/162	87/169	105/187
100	1010	-	560	800	1070	1115	700/830	16	16	92/235	107/250	123/266
112	1130	-	560	800	1190	1235	700/880	20	16	120/250	136/260	157/360
125	1260	-	560	800	1320	1365	700/1000	20	16	-	169/356	192/450
140	1400	-	800	100	1470	1520	900/1000	20	16	-	380/480	426/526

1 - Motor

2 - Casing

3 - Impeller

4 - Grid (mandatory for free air)

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