L型系列罗茨鼓风机系定容式风机，它利用一对渐开线腰形风叶呈同步回转输送气体，当送风阻力变化时，流量保持不变，被广泛用于水泥、化工、化肥冶炼、电力、铸造、养殖、污水处理，气力输送等行业，输送清洁空气、清洁煤气、二氧化硫及其他气体，本风机共9个机号，30个机型。  L型系列罗茨鼓风机性能参数表：
  
风  机型  号      转  速  r/min      升  压      进口流量  m3/min      轴功率  kW      配  套  电  机      主机重量  kg
kPa      mmH2O      型  号      功率
L22LD      1450      9.8      1000      3.30      0.79      Y90L-4      1.5      175
19.6      2000      2.98      1.59      Y100L-4      2.2      175
29.4      3000      2.73      2.38      Y100L-4      3      175
39.2      4000      2.51      3.17      Y112M-4      4      175
49.0      5000      2.30      3.97      Y132S-4      5.5      175
    2900      9.8      1000      7.97      1.16      Y90L-2      2.2      175
19.6      2000      7.66      3.23      Y112M-2      4      175
29.4      3000      7.40      4.84      Y132S-2      5.5      175
39.2      4000      7.18      6.46      Y132S-2      7.5      175
49.0      5000      6.97      8.07      Y160M-2      11      175
L23LD      1450      9.8      1000      4.49      1.10      Y90L-4      1.5      190
19.6      2000      4.32      2.19      Y100L-4      3      190
29.4      3000      4.03      3.29      Y112M-4      4      190
39.2      4000      3.76      4.39      Y132S-4      5.5      190
49.0      5000      3.53      5.49      Y132M-4      7.5      190
2900      9.8      1000      10.9      2.23      Y100L-2      3      190
19.6      2000      10.8      4.46      Y132S-2      5.5      190
29.4      3000      10.5      6.70      Y132S-2      7.5      190
39.2      4000      10.2      8.93      Y160M-2      11      190
L32LD      1450      9.8      1000      7.92      1.84      Y100L-4      2.2      430
19.6      2000      7.30      3.68      Y132S-4      5.5      430
29.4      3000      6.81      5.52      Y132M-4      7.5      430
39.2      4000      6.38      7.36      Y160M-4      11      430
49.0      5000      5.99      9.20      Y160M-4      11      430
L33LD      1450      9.8      1000      10.8      2.47      Y100L-4      3      470
19.6      2000      10.1      4.93      Y132S-4      5.5      470
29.4      3000      9.54      7.40      Y160M-4      11      470
39.2      4000      9.04      9.86      Y160M-4      11      470
49.0      5000      8.57      12.3      Y160L-4      15      470