K40矿山风机主要特点：
1、采用扭曲机翼型叶片，气动效率高，节能效果极为显著。
2、性能多样，规格齐全，能够与各种阻力和风量类型的通风网路很好匹配，可保持*高效运转。
3、设有稳流环装置，特性曲线无驼峰，没有喘振危险，在任何阻力状态下均可安全稳定运转，并适于多风机联合运转。
4、采用电动机与叶轮直联的结构，整体稳定型好，安装方便，维修容易，装置局阻低。
K40矿山风机性能参数表
| 机号 | 转速r/min | 风量m3/s | 全压Pa | 功率(kW) |
| K40-6-7 | 980 | 2.0～4.3 | 38～174 | 1.1 |
| K40-4-8 K40-6-8 | 1450 | 4.4～9.5 | 108～497 | 5.5 |
| 980 | 3.0～6.4 | 49～227 | 2.2 | |
| K40-4-9 K40-6-9 | 1450 | 6.2～13.5 | 136～629 | 11 |
| 980 | 4.2～9.1 | 62～287 | 3 | |
| K40-4-10 K40-6-10 | 1450 | 8.5～18.6 | 168～776 | 15 |
| 980 | 5.8～12.5 | 77～355 | 5.5 | |
| K40-4-11 K40-6-11 K40-8-11 | 1450 | 11.3～24.7 | 203～9390 | 30 |
| 980 | 7.7～16.7 | 93～429 | 7.5 | |
| 730 | 5.7～12.4 | 52～238 | 4 | |
| K40-4-12 K40-6-12 K40-8-12 | 1450 | 14.7～32.1 | 242～1118 | 37 |
| 980 | 9.9～21.7 | 111～510 | 15 | |
| 730 | 7.4～16.1 | 61～283 | 5.5 | |
| K40-4-13 K40-6-13 K40-8-13 | 1450 | 18.7～40.8 | 284～1312 | 55 |
| 980 | 12.6～27.5 | 130～599 | 18.5 | |
| 730 | 9.4～20.5 | 72～332 | 7.5 | |
| K40-4-14 K40-6-14 K40-8-14 | 1450 | 23.4～50.9 | 329～1521 | 90 |
| 980 | 15.8～34.4 | 150～695 | 30 | |
| 730 | 11.8～25.6 | 84～386 | 11 | |
| K40-4-15 K40-6-15 K40-8-15 | 1450 | 28.7～62.6 | 378～1746 | 110 |
| 980 | 19.4～42.3 | 173～798 | 37 | |
| 730 | 14.5～31.5 | 96～443 | 15 | |
| K40-6-16 K40-8-16 | 980 | 23.6～51.4 | 197～908 | 55 |
| 730 | 17.6～38.3 | 109～504 | 22 | |
| K40-6-17 K40-8-17 | 980 | 28.3～61.6 | 222～908 | 75 |
| 730 | 21.1～45.9 | 123～568 | 30 | |
| K40-6-18 K40-8-18 | 980 | 33.6～73.1 | 249～1149 | 90 |
| 730 | 25.0～54.5 | 138～637 | 37 | |
| K40-6-19 K40-8-19 | 980 | 39.5～86.0 | 277～1280 | 110 |
| 730 | 29.4～64.1 | 154～710 | 55 | |
| K40-6-20 K40-8-20 | 980 | 46.0～100.3 | 307～1418 | 160 |
| 730 | 34.3～74.7 | 170～787 | 75 | |
| K40-6-21 K40-8-21 | 980 | 53.3～116.1 | 339～1563 | 200 |
| 730 | 39.7～86.5 | 188～867 | 90 | |
| K40-6-22 K40-8-22 | 980 | 61.3～113.4 | 372～1716 | 250 |
| 730 | 45.7～99.4 | 206～952 | 110 | |
| K40-8-23 | 730 | 52.2～113.6 | 225～1041 | 132 |
| K40-8-24 | 730 | 59.3～129.1 | 245～1133 | 160 |
| K40-8-25 | 730 | 67.0～146 | 266～1229 | 200 |
| K40-8-26 | 730 | 75.4～164.2 | 288～1330 | 250 |
