FBCDZ Series Explosion-Proof Counter-Rotating Axial Exhaust Fan

Product Applications: Coal Mining High-Temperature, Corrosion & Special Environment Customization Metal & Non-Metal Mining Tunnel & Underground

FBCDZ Series Explosion-Proof Counter-Rotating Axial Exhaust Fan is a high-efficiency, two-stage counter-rotating axial fan for surface coal-mine ventilation, offering high pressure, large airflow, low noise and energy savings. Its modular, compact design ensures easy installation and maintenance under varying resistance conditions. Equipped with an explosion-proof motor meeting coal-mine safety standards and featuring forced reverse-flow capability for emergency ventilation, it’s ideal for main exhaust systems at mine portals.

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I. Product Overview

The FBCDZ series explosion-proof exhaust-type contra-rotating axial-flow fan is a high-efficiency, energy-saving main ventilation device for coal mine surfaces, integrating advanced aerodynamic design and structure. Its contra-rotating impellers deliver higher pressure and airflow with lower noise and broad operational efficiency, meeting various mine ventilation needs.

The main duct can be equipped with a flow-stabilizing ring, eliminating performance curve humps and ensuring stable operation without surge under different resistance conditions. Four hub ratios (0.40, 0.45, 0.54, 0.62) and motors from 4 to 12 poles allow over 200 model variants, forming a complete high-performance series for both coal and non-coal mine ventilation systems.

II. Model Explanation

F B C D Z №X / 2×Y

F: Fan
B: Explosion-proof
C: Exhaust type
D: Contra-rotating
Z: Axial-flow
№X: Model No. (impeller diameter, dm)
/2×Y: Power (two motors, each Y kW)

Example:
FBCDZ №16 / 2×110 means: FBCDZ series, impeller diameter 1.6m, dual contra-rotating impellers, each with a 110kW motor (total 220kW).

III. Application Scope

Ideal for coal mine surface exhaust main ventilation, and widely used in metallurgy, chemical, building materials, and nuclear industries for both underground and surface ventilation.
Especially suitable as main or auxiliary fans in multi-stage or multi-fan ventilation networks.
Note: Conveyed air must be free of methane or other explosive gases.

IV. Normal Working Conditions

Altitude: ≤1000m
Ambient temperature: –20°C to +40°C
Relative humidity: ≤95% (at 25°C)
Working medium: Clean air, free of methane/explosive gases
Installation: Mainly horizontal surface mounting, also suitable for underground

V. Product Features

High-efficiency contra-rotating impellers: Dual impellers, no guide vanes, up to 40–70% efficiency gain, max pressure increased by 192%
Excellent energy savings: Aerodynamically optimized blades, static efficiency ≥86%
Stable operation: Optional flow-stabilizing ring eliminates curve humps, surge-free
Direct-coupled structure: Less transmission loss, compact, stable, easy maintenance
High explosion-proof safety: Strong anti-explosion and impact capacity, copper lining for spark protection, explosion-proof motor and safety devices
Strong reverse ventilation: Forced reverse flow, rate ≥40%, no extra reverse duct needed
Adjustable blade angle: Flexible operation point adjustment for system needs
Low-noise structure: Efficient diffuser and silencer, significantly reduced outlet noise
Minimal civil works: Small footprint, less construction cost

VI. Structure

Modular design; main components:

Inlet collector
First-stage unit (motor + impeller)
Second-stage unit (motor + impeller)
Diffuser
Diffuser tower (as required)
Flat base (optional)
Flow-stabilizing ring (optional)

The fan features a split upper and lower casing, horizontally flanged and gasket-sealed, bolted for tightness and easy maintenance.

Main Technical Parameters Table of FBCDZ Series Ventilation Fans

Model	Airflow (m3/s)	Total Pressure (Pa)	Power (kW)	Max. Fan Unit Efficiency (%)
15	18.2~43.6	382~1690	2×37	≥80
16	22.1~52.9	435~1923	2×55	≥80
17	26.5~63.5	491~2171	2×75	≥80
18	31.5~75.4	551~2433	2×90	≥80
19	37.0~88.6	614~2711	2×132	≥80
20	43.2~103.4	680~3004	2×160	≥80
21	50.0~119.7	750~3312	2×200	≥80
12	10.7~27.6	698~1374	2×22	≥80
13	13.6~35.0	819~1613	2×37	≥80
14	17.0~43.8	950~1871	2×55	≥80
15	20.9~53.8	1091~2148	2×75	≥80
16	25.4~65.3	1241~2444	2×90	≥80
17	30.4~78.3	1400~2759	2×132	≥80
18	36.1~93.5	1570~3093	2×160	≥80
19	42.5~109.4	1750~3446	2×200	≥80
20	49.5~127.6	1939~3819	2×250	≥80
12	6.2~23.4	411~1815	2×18.5	≥80
13	7.9~29.8	482~2130	2×30	≥80
14	9.9~37.2	600~2470	2×37	≥80
15	12.2~45.8	682~2836	2×55	≥80
16	14.8~55.5	730~3227	2×75	≥80
17	17.8~66.6	825~3643	2×110	≥80
18	21.1~79.1	924~4080	2×132	≥80
19	23.8~92.0	1030~4560	2×185	≥80
20	28.9~108.5	1141~5042	2×200	≥80
21	33.5~125.6	1258~5560	2×280	≥80
22	38.5~144.4	1380~6100	2×355	≥80
12	7.6~22.0	333~1280	2×18.5	≥80
13	9.7~28.0	375~1500	2×30	≥80
14	12.1~35.0	480~1700	2×37	≥80
15	14.9~43.1	521~2000	2×55	≥80
16	18.0~52.3	592~2275	2×75	≥80
17	21.6~62.7	669~2569	2×110	≥80
18	25.7~74.4	750~2880	2×132	≥80
19	30.0~87.5	835~3209	2×185	≥80
20	35.2~102.0	925~3555	2×220	≥80
21	40.0~118.2	1020~3920	2×280	≥80
22	46.9~135.9	1120~4302	2×355	≥80
12	5.5～20.5	500～2200	2×30	≥80
13	7.0～26.5	600～2600	2×37	≥80
14	10.1～31.7	918～2888	2×55	≥80
15	12.4～39.0	1054～3315	2×75	≥80
16	15.0～47.3	1199～3772	2×110	≥80
17	18.0～56.8	1353～4258	2×132	≥80
18	21.4～67.4	1517～4774	2×185	≥80
19	25.1～79.3	1690～5319	2×220	≥80
20	29.3～92.5	1873～5893	2×250	≥80
21	33.9～107.0	2065～6497	2×355	≥80
12	7.0～19.2	377～1555	2×18.5	≥80
13	8.1～24.4	442～1835	2×30	≥80
14	10.1～30.5	513～2130	2×37	≥80
15	14.5～36.6	805～2335	2×55	≥80
16	17.6～44.4	916～2656	2×75	≥80
17	21.1～53.3	1035～2999	2×90	≥80
18	25.0～63.3	1160～3362	2×132	≥80
19	29.4～74.4	1292～3746	2×160	≥80
20	34.3～86.8	1432～4150	2×220	≥80
21	39.7～100.5	1579～4576	2×280	≥80
18	23.5~56.1	306~1350	2×37	≥80
19	27.6~66.0	341~1504	2×55	≥80
20	32.2~77.0	377~3334	2×75	≥80
21	37.3~89.1	416~1838	2×90	≥80
22	42.8~102.5	457~2017	2×110	≥80
23	48.9~117.1	499~2204	2×132	≥80
24	55.6~133.0	543~2400	2×160	≥80
25	62.9~150.4	589~2605	2×200	≥80
26	73.6~169.5	627~2710	2×250	≥80
16	18.9~48.7	688~1356	2×37	≥80
17	22.7~58.4	777~1531	2×55	≥80
18	26.9~69.3	871~1716	2×75	≥80
19	31.6~81.5	971~1912	2×90	≥80
20	36.9~95.1	1076~2119	2×110	≥80
21	42.7~110.1	1186~2336	2×160	≥80
22	49.1~126.6	1302~2563	2×200	≥80
16	11.4~42.8	434~1920	2×30	≥80
17	13.7~51.4	490~2165	2×45	≥80
18	16.3~61.0	549~2427	2×75	≥80
19	19.1~71.7	620~2704	2×90	≥80
20	22.0~83.6	695~2996	2×110	≥80
21	25.8~96.8	748~3303	2×132	≥80
22	29.7~111.3	821~3625	2×160	≥80
23	33.9~127.2	900~3962	2×200	≥80
24	38.5~144.5	976~4314	2×250	≥80
25	42.5~163.3	1060~4681	2×315	≥80
26	49.0~183.7	1146~5063	2×355	≥80
27	54.9~205.7	1236~5460	2×450	≥80
28	61.2~233.5	1329~5872	2×560	≥80
16	13.9~40.3	350~1352	2×37	≥80
17	16.7~48.0	397~1530	2×45	≥80
18	18.8~57.0	445~1711	2×75	≥80
19	23.3~67.5	496~1907	2×90	≥80
20	27.2~78.7	550~2140	2×110	≥80
21	31.0~91.5	606~2350	2×132	≥80
22	36.2~104.7	665~2556	2×160	≥80
23	41.3~119.7	727~2794	2×200	≥80
24	47.0~136.0	792~3042	2×250	≥80
25	53.1~153.7	850~3300	2×315	≥80
26	59.7~172.9	929~3570	2×355	≥80
27	66.9~193.6	1002~3850	2×450	≥80
28	74.6~215.9	1010~4141	2×560	≥80
16	9.0～37.4	550～2300	2×55	≥80
17	13.6～42.9	772～2428	2×55	≥80
18	16.1～50.9	865～2722	2×75	≥80
19	19.0～60.0	964～3033	2×110	≥80
20	22.1～69.8	1068～3360	2×132	≥80
21	25.6～80.8	1177～3705	2×160	≥80
22	29.5～92.9	1292～4066	2×200	≥80
23	33.7～106.2	1412～4444	2×250	≥80
24	38.2～120.7	1538～4839	2×315	≥80
25	43.2～136.4	1669～5250	2×315	≥80
26	48.6～153.4	1805～5679	2×450	≥80
27	54.4～171.8	1946～6124	2×450	≥80
28	60.7～191.6	2093～6586	2×710	≥80
16	11.6～34.5	400～1574	2×30	≥80
17	14.0～42.0	450～1777	2×45	≥80
18	18.9～47.8	661～1917	2×55	≥80
19	22.2～56.2	737～2136	2×75	≥80
20	25.9～65.5	816～2367	2×90	≥80
21	30.0～75.9	900～2609	2×132	≥80
22	34.5～87.2	988～2863	2×160	≥80
23	39.4～99.7	1080～3130	2×185	≥80
24	44.8～113.2	1176～3408	2×220	≥80
25	50.6～128.0	1276～3698	2×280	≥80
26	56.9～144.0	1380～3999	2×355	≥80
27	63.7～161.0	1488～4313	2×355	≥80
28	71.1～179.8	1600～4638	2×450	≥80
20	17.8～66.7	450～1950	2×55	≥80
21	20.6～77.2	475～2100	2×75	≥80
22	23.7～88.7	545～2304	2×90	≥80
23	27.0～101.4	595～2519	2×110	≥80
24	30.7～115.2	621～2742	2×132	≥80
25	34.7～130.2	695～2976	2×160	≥80
26	39.1～146.5	728～3440	2×200	≥80
27	43.7～164.0	786～3471	2×220	≥80
28	48.8～183.0	845～3733	2×315	≥80
29	54.2～203.3	910～4004	2×355	≥80
30	60.0～225.0	1000～4285	2×400	≥80
31	66.2～248.3	1050～4675	2×450	≥80
32	72.8～273.1	1100～4875	2×560	≥80
33	79.9～299.5	1174～5185	2×630	≥80
20	21.7～62.7	350～1343	2×55	≥80
21	25.0～73.0	385～1480	2×75	≥80
22	28.8～83.5	405～1625	2×90	≥80
23	32.9～95.4	462～1776	2×110	≥80
24	37.4～108.4	500～1934	2×132	≥80
25	42.3～122.5	546～2098	2×160	≥80
26	47.6～137.8	560～2270	2×200	≥80
27	53.3～154.3	637～2447	2×220	≥80
28	59.4～172.1	685～2632	2×315	≥80
29	66.0～191.2	735～2800	2×355	≥80
30	73.0～211.7	786～3022	2×400	≥80
31	80.7～233.6	840～3250	2×450	≥80
32	88.7～256.9	895～3438	2×560	≥80
33	97.3～280.0	952～3656	2×630	≥80
20	17.6～55.7	679～2136	2×75	≥80
21	20.4～64.4	748～2355	2×90	≥80
22	23.5～74.1	821～2585	2×110	≥80
23	26.8～84.7	898～2825	2×132	≥80
24	30.5～96.2	978～3076	2×160	≥80
25	34.5～108.7	1061～3338	2×185	≥80
26	38.8～122.3	1147～3610	2×250	≥80
27	43.4～137.0	1237～3893	2×250	≥80
28	48.4～152.8	1331～4187	2×315	≥80
29	53.8～169.7	1427～4491	2×355	≥80
30	59.5～187.9	1527～4806	2×450	≥80
31	57.0～220.0	1200～5400	2×560	≥80
32	72.3～228.0	1738～5468	2×560	≥80
33	67.0～260.0	1350～6050	2×710	≥80
34	86.7～273.4	1962～6173	2×800	≥80
35	81.0～315.0	1550～6750	2×900	≥80
36	102.9～324.7	2199～6921	2×1000	≥80
21	23.9～60.5	572～1659	2×75	≥80
22	27.5～69.5	628～1820	2×75	≥80
23	31.4～79.5	686～1990	2×90	≥80
24	35.7～90.3	747～2166	2×110	≥80
25	40.3～102.1	811～2351	2×160	≥80
26	45.4～114.8	877～2542	2×185	≥80
27	50.8～128.6	946～2742	2×200	≥80
28	56.7～143.4	1017～2949	2×250	≥80
29	63.0～159.3	1091～3163	2×250	≥80
30	69.7～176.4	1168～3385	2×315	≥80
31	67.3～203.4	930～3757	2×400	≥80
32	84.6～214.0	1329～3851	2×450	≥80
33	81.2～242.4	1077～4257	2×560	≥80
34	101.5～256.7	1500～4348	2×560	≥80
35	100.0～290.0	1211～4790	2×800	≥80
36	120.4～304.7	1682～4874	2×710	≥80
34	72.5～272.0	890～3796	2×400	≥80
35	79.1～296.8	900～4023	2×500	≥80
36	86.1～322.9	963～4256	2×560	≥80
37	93.5～348.6	1010～4510	2×630	≥80
38	101.3～379.8	1073～4742	2×710	≥80
39	109.5～410.6	1100～4995	2×800	≥80
40	118.1～440.0	1189～5254	2×900	≥80
34	88.4～256.0	697～2700	2×400	≥80
35	96.4～279.2	738～2837	2×500	≥80
36	104.9～303.8	781～3000	2×560	≥80
37	113.9～329.9	825～3170	2×630	≥80
38	120.0～357.3	830～3344	2×710	≥80
39	133.4～386.3	917～3522	2×800	≥80
40	140.0～416.8	964～3705	2×900	≥80
24	25.3～79.9	674～2122	2×110	≥80
25	28.6～90.3	732～2302	2×110	≥80
26	32.2～101.6	791～2490	2×132	≥80
27	36.1～113.8	853～2685	2×160	≥80
28	40.2～126.9	918～2888	2×200	≥80
29	44.7～140.9	985～3098	2×200	≥80
30	49.5～156.0	1054～3315	2×250	≥80
31	49.0～180.0	820～3700	2×315	≥80
32	60.0～189.4	1199～3772	2×355	≥80
33	53.0～209.0	1050～4300	2×400	≥80
34	72.0～227.1	1353～4258	2×450	≥80
35	62.5～260.0	1150～4800	2×500	≥80
36	85.5～269.6	1517～4774	2×560	≥80
37	79.5～305.0	1250～5300	2×630	≥80
38	100.5～317.1	1690～5319	2×800	≥80
39	95.0～360.0	1380～5940	2×900	≥80
40	171.2～370.0	1873～5893	2×1000	≥80
24	26.0～78.4	385～1553	2×75	≥80
25	33.5～84.8	559～1621	2×110	≥80
26	37.7～95.3	605～1754	2×110	≥80
27	42.2～106.8	652～1891	2×132	≥80
28	47.1～119.1	702～2034	2×160	≥80
29	52.3～132.3	753～2182	2×160	≥80
30	57.9～146.5	806～2335	2×200	≥80
31	57.5～168.0	635～2590	2×250	≥80
32	70.3～177.7	916～2656	2×250	≥80
33	67.5～203.8	743～2936	2×315	≥80
34	84.3～213.2	1035～2999	2×315	≥80
35	80.5～240.5	835～3303	2×450	≥80
36	100.0～253.1	1160～3362	2×450	≥80
37	95.1～287.3	934～3690	2×560	≥80
38	117.6～297.6	1292～3746	2×560	≥80
39	112.5～342.5	1037～4160	2×710	≥80
40	137.2～347.2	1432～4150	2×710	≥80

ISO 14001:2015

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FBCDZ Series Explosion-Proof Counter-Rotating Axial Exhaust Fan

Parameters

Certificates

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