Technology
Side channel blowers
Compressing without contact and practically maintenance-free – usable as a vacuum pump or as a compressor. 177 current models from 4 manufacturers – comparable by flow rate and rated motor power.
Compare 177 modelsHow the technology works
- 177models
- 13series
- 4manufacturers
- 2,200 m³/hhighest pumping speed (50 Hz)
Touch the points: the parts explain themselves.
Manufacturers and series
4 manufacturers, 13 series
Each series leads to its page with all models. “Show only …” sets the filter of the product overview.
Atlas Copco
64 models · 65–2,050 m³/h
Becker
31 models · 24–1,180 m³/h
Busch
31 models · 40–2,200 m³/h
Elmo Rietschle
51 models · 35 m³/h
Product overview
Compare all 177 models
The filters on the left narrow down the selection by the key figures of the models – for 50 or 60 Hz.
Atlas Copco DBD series 6 models
DBD 90Pumping speed 91 m³/h 50 Hz110 m³/h 60 HzRated motor power 1.1 – 1.5 kW 50 Hz1.3 – 1.7 kW 60 HzVariants 2
DBD 180Pumping speed 181 m³/h 50 Hz218 m³/h 60 HzRated motor power 3 – 4 kW 50 Hz3.5 kW 60 HzVariants 2DBD 240Pumping speed 236 m³/h 50 Hz285 m³/h 60 HzRated motor power 4 – 5.5 kW 50 Hz4.8 – 6.5 kW 60 HzVariants 2DBD 310Pumping speed 310 m³/h 50 Hz374 m³/h 60 HzRated motor power 5.5 kW 50 Hz6.5 kW 60 HzVariants 1DBD 430Pumping speed 430 m³/h 50 Hz519 m³/h 60 HzRated motor power 7.5 kW 50 Hz9 – 11 kW 60 HzVariants 2DBD 390Pumping speed 515 m³/h 50 Hz466 m³/h 60 HzRated motor power 7.5 kW 50 Hz9 kW 60 HzVariants 1Atlas Copco DBDt series 17 models
DBDt 70Pumping speed 65 m³/h 50 Hz76 m³/h 60 HzRated motor power 1.5 kW 50 Hz1.75 kW 60 HzVariants 1DBDt 110Pumping speed 110 m³/h 50 Hz130 m³/h 60 HzRated motor power 0.85 kW 50 Hz0.95 kW 60 HzVariants 1DBDt 120Pumping speed 120 m³/h 50 Hz145 m³/h 60 HzRated motor power 1.1 – 4 kW 50 Hz1.3 – 4.6 kW 60 HzVariants 2
DBDt 140Pumping speed 139 m³/h 50 Hz168 m³/h 60 HzRated motor power 2.2 kW 50 Hz2.6 kW 60 HzVariants 1DBDt 150Pumping speed 150 m³/h 50 Hz180 m³/h 60 HzRated motor power 2.2 kW 50 Hz2.55 kW 60 HzVariants 1DBDt 170Pumping speed 165 m³/h 50 Hz195 m³/h 60 HzRated motor power 5.5 kW 50 Hz6.3 kW 60 HzVariants 1DBDt 210Pumping speed 215 m³/h 50 Hz259 m³/h 60 HzRated motor power 3 – 4 kW 50 Hz3.5 – 4.8 kW 60 HzVariants 2DBDt 230Pumping speed 230 m³/h 50 Hz275 m³/h 60 HzRated motor power 3 – 4 kW 50 Hz3.45 – 4.6 kW 60 HzVariants 2DBDt 310Pumping speed 312 m³/h 50 Hz376 m³/h 60 HzRated motor power 4 – 5.5 kW 50 Hz4.8 – 9 kW 60 HzVariants 3DBDt 320Pumping speed 320 m³/h 50 Hz380 m³/h 60 HzRated motor power 5.5 kW 50 Hz6.3 kW 60 HzVariants 1DBDt 420Pumping speed 416 m³/h 50 Hz502 m³/h 60 HzRated motor power 5.5 – 7.5 kW 50 Hz6.5 – 9 kW 60 HzVariants 2DBDt 520Pumping speed 518 – 520 m³/h 50 Hz620 – 625 m³/h 60 HzRated motor power 7.5 – 11 kW 50 Hz8.6 – 12.6 kW 60 HzVariants 4DBDt 660Pumping speed 657 m³/h 50 Hz793 m³/h 60 HzRated motor power 11 – 15 kW 50 Hz13 – 17 kW 60 HzVariants 2DBDt 800Pumping speed 804 m³/h 50 Hz970 m³/h 60 HzRated motor power 11 – 15 kW 50 Hz13 – 22 kW 60 HzVariants 3DBDt 900Pumping speed 903 m³/h 50 Hz1,089 m³/h 60 HzRated motor power 15 – 18.5 kW 50 Hz17 – 22 kW 60 HzVariants 2DBDt 1010Pumping speed 1,007 m³/h 50 Hz1,216 m³/h 60 HzRated motor power 18.5 – 22 kW 50 Hz22 – 26 kW 60 HzVariants 2DBDt 1110Pumping speed 1,110 m³/h 50 Hz1,310 m³/h 60 HzRated motor power 12.5 – 20 kW 50 Hz14.5 – 23 kW 60 HzVariants 2Atlas Copco DBS series 29 models
DBS 70Pumping speed 74 m³/h 50 Hz89 m³/h 60 HzRated motor power 0.37 – 0.55 kW 50 Hz0.42 – 0.65 kW 60 HzVariants 2DBS 80Pumping speed 80 m³/h 50 Hz98 m³/h 60 HzRated motor power 0.4 kW 50 Hz0.5 kW 60 HzVariants 1DBS 90Pumping speed 87 m³/h 50 Hz105 m³/h 60 HzRated motor power 1.1 kW 50 Hz1.3 kW 60 HzVariants 1DBS 100Pumping speed 100 m³/h 50 Hz120 – 130 m³/h 60 HzRated motor power 0.55 – 0.7 kW 50 Hz0.62 – 0.8 kW 60 HzVariants 3DBS 120Pumping speed 120 m³/h 50 Hz145 m³/h 60 HzRated motor power 1.5 kW 50 Hz1.75 kW 60 HzVariants 1DBS 140Pumping speed 137 m³/h 50 Hz166 m³/h 60 HzRated motor power 0.75 – 1.1 kW 50 Hz0.9 – 1.7 kW 60 HzVariants 3DBS 145Pumping speed 145 m³/h 50 Hz175 m³/h 60 HzRated motor power 0.7 kW 50 Hz0.8 kW 60 HzVariants 1DBS 150Pumping speed 145 m³/h 50 Hz175 m³/h 60 HzRated motor power 0.85 kW 50 Hz0.95 kW 60 HzVariants 1DBS 170Pumping speed 165 m³/h 50 Hz195 m³/h 60 HzRated motor power 2.2 kW 50 Hz2.55 kW 60 HzVariants 1DBS 180Pumping speed 180 m³/h 50 Hz210 m³/h 60 HzRated motor power 1.3 kW 50 Hz1.5 kW 60 HzVariants 1DBS 210Pumping speed 210 m³/h 50 Hz255 m³/h 60 HzRated motor power 1.1 – 1.6 kW 50 Hz1.3 – 2.05 kW 60 HzVariants 2DBS 220Pumping speed 219 m³/h 50 Hz265 m³/h 60 HzRated motor power 1.1 – 2.2 kW 50 Hz1.3 – 2.6 kW 60 HzVariants 3DBS 280Pumping speed 265 m³/h 50 Hz315 m³/h 60 HzRated motor power 2.2 kW 50 Hz2.55 kW 60 HzVariants 1DBS 350Pumping speed 265 m³/h 50 Hz315 m³/h 60 HzRated motor power 2.2 kW 50 Hz2.55 kW 60 HzVariants 1DBS 270Pumping speed 270 m³/h 50 Hz330 m³/h 60 HzRated motor power 1.5 – 2.2 kW 50 Hz1.75 – 2.55 kW 60 HzVariants 2DBS 300Pumping speed 304 m³/h 50 Hz366 m³/h 60 HzRated motor power 2.2 – 4 kW 50 Hz2.6 – 4.8 kW 60 HzVariants 3DBS 320Pumping speed 318 m³/h 50 Hz376 m³/h 60 HzRated motor power 2.2 – 4 kW 50 Hz2.55 – 4.6 kW 60 HzVariants 3DBS 410Pumping speed 414 m³/h 50 Hz499 m³/h 60 HzRated motor power 2.2 – 4 kW 50 Hz2.6 – 4.8 kW 60 HzVariants 3DBS 420Pumping speed 420 m³/h 50 Hz500 m³/h 60 HzRated motor power 2.2 – 4 kW 50 Hz2.55 – 4.6 kW 60 HzVariants 2DBS 480Pumping speed 477 m³/h 50 Hz576 m³/h 60 HzRated motor power 4 – 6.5 kW 50 Hz4.8 – 6.5 kW 60 HzVariants 2DBS 530Pumping speed 530 m³/h 50 Hz620 m³/h 60 HzRated motor power 5.5 kW 50 Hz6.3 kW 60 HzVariants 1DBS 540Pumping speed 536 m³/h 50 Hz647 m³/h 60 HzRated motor power 3 – 7.5 kW 50 Hz3.5 – 9 kW 60 HzVariants 4DBS 660Pumping speed 663 m³/h 50 Hz800 m³/h 60 HzRated motor power 4 – 7.5 kW 50 Hz4.8 – 9 kW 60 HzVariants 3DBS 700Pumping speed 700 m³/h 50 Hz840 m³/h 60 HzRated motor power 5.5 – 7.5 kW 50 Hz6.3 – 8.6 kW 60 HzVariants 2DBS 780Pumping speed 782 m³/h 50 Hz944 m³/h 60 HzRated motor power 5.5 – 9.2 kW 50 Hz6.5 – 13 kW 60 HzVariants 4DBS 910Pumping speed 915 m³/h 50 Hz1,105 m³/h 60 HzRated motor power 7.5 – 15 kW 50 Hz9 – 17 kW 60 HzVariants 4DBS 1020Pumping speed 1,022 m³/h 50 Hz1,234 m³/h 60 HzRated motor power 9.2 – 15 kW 50 Hz11 – 22 kW 60 HzVariants 4DBS 1050Pumping speed 1,050 m³/h 50 Hz1,250 m³/h 60 HzRated motor power 8.5 – 18.5 kW 50 Hz9.8 – 21.3 kW 60 HzVariants 3DBS 1370Pumping speed 1,370 m³/h 50 Hz1,650 m³/h 60 HzRated motor power 12.5 – 18.5 kW 50 Hz14.5 – 21.3 kW 60 HzVariants 2Atlas Copco DBSt series 12 models
DBSt 410Pumping speed 408 m³/h 50 Hz493 m³/h 60 HzRated motor power 3 – 4 kW 50 Hz3.5 – 4.8 kW 60 HzVariants 2DBSt 500Pumping speed 500 m³/h 50 Hz600 m³/h 60 HzRated motor power 4 kW 50 Hz4.6 kW 60 HzVariants 1DBSt 560Pumping speed 562 m³/h 50 Hz679 m³/h 60 HzRated motor power 4 – 7.5 kW 50 Hz4.8 – 9 kW 60 HzVariants 3DBSt 820Pumping speed 820 m³/h 50 Hz1,050 m³/h 60 HzRated motor power 7.5 kW 50 Hz8.6 kW 60 HzVariants 1DBSt 830Pumping speed 827 m³/h 50 Hz998 m³/h 60 HzRated motor power 5.5 – 7.5 kW 50 Hz6.5 – 11 kW 60 HzVariants 3DBSt 1010Pumping speed 1,006 m³/h 50 Hz1,214 m³/h 60 HzRated motor power 7.5 – 15 kW 50 Hz9 – 17 kW 60 HzVariants 4DBSt 1320Pumping speed 1,325 m³/h 50 Hz1,599 m³/h 60 HzRated motor power 11 – 18.5 kW 50 Hz13 – 22 kW 60 HzVariants 3DBSt 1540Pumping speed 1,539 m³/h 50 Hz1,857 m³/h 60 HzRated motor power 11 – 18.5 kW 50 Hz13 – 22 kW 60 HzVariants 3DBSt 1760Pumping speed 1,764 m³/h 50 Hz2,129 m³/h 60 HzRated motor power 15 – 22 kW 50 Hz17 – 26 kW 60 HzVariants 3DBSt 1940Pumping speed 1,940 m³/h 50 Hz2,310 m³/h 60 HzRated motor power 15 – 20 kW 50 Hz17.5 – 23 kW 60 HzVariants 2DBSt 1980Pumping speed 1,985 m³/h 50 Hz2,382 m³/h 60 HzRated motor power 18.5 – 22 kW 50 Hz26 kW 60 HzVariants 2DBSt 2050Pumping speed 2,050 m³/h 50 Hz2,480 m³/h 60 HzRated motor power 15 – 25 kW 50 Hz17.5 – 29 kW 60 HzVariants 2Becker SV series 16 models
SV 130/2Pumping speed 70 m³/h 50 Hz85 m³/h 60 HzRated motor power 0.55 – 1.1 kW 50 Hz0.66 – 1.3 kW 60 HzVariants 11
SV 200/2Pumping speed 90 m³/h 50 Hz110 m³/h 60 HzRated motor power 1.1 – 1.5 kW 50 Hz1.3 – 1.8 kW 60 HzVariants 9SV 201/2Pumping speed 90 m³/h 50 Hz110 m³/h 60 HzRated motor power 1.1 – 1.5 kW 50 Hz1.3 – 1.8 kW 60 HzVariants 9SV 130/1Pumping speed 130 m³/h 50 Hz160 m³/h 60 HzRated motor power 0.55 – 1.5 kW 50 Hz0.66 – 1.8 kW 60 HzVariants 19SV 300/2Pumping speed 160 m³/h 50 Hz190 m³/h 60 HzRated motor power 2.2 – 3 kW 50 Hz2.65 – 3.6 kW 60 HzVariants 7SV 200/1Pumping speed 180 m³/h 50 Hz230 m³/h 60 HzRated motor power 1.1 – 1.5 kW 50 Hz1.3 – 1.8 kW 60 HzVariants 9SV 201/1Pumping speed 190 m³/h 50 Hz230 m³/h 60 HzRated motor power 1.1 – 2.2 kW 50 Hz1.3 – 2.65 kW 60 HzVariants 12
SV 400/2Pumping speed 195 m³/h 50 Hz235 m³/h 60 HzRated motor power 3 – 5.5 kW 50 Hz3.6 – 6.6 kW 60 HzVariants 12SV 500/2Pumping speed 260 m³/h 50 Hz305 m³/h 60 HzRated motor power 3 – 5.5 kW 50 Hz3.6 – 6.6 kW 60 HzVariants 12SV 300/1Pumping speed 325 m³/h 50 Hz390 m³/h 60 HzRated motor power 2.2 – 4 kW 50 Hz2.65 – 4.8 kW 60 HzVariants 11
SV 700/2Pumping speed 375 m³/h 50 Hz435 m³/h 60 HzRated motor power 7.5 kW 50 Hz9 kW 60 HzVariants 3SV 400/1Pumping speed 390 m³/h 50 Hz470 m³/h 60 HzRated motor power 3 – 5.5 kW 50 Hz3.6 – 6.6 kW 60 HzVariants 12SV 1100/2Pumping speed 510 m³/h 50 Hz605 m³/h 60 HzRated motor power 7.5 – 11 kW 50 Hz9 – 13.2 kW 60 HzVariants 6SV 500/1Pumping speed 510 m³/h 50 Hz610 m³/h 60 HzRated motor power 4 – 7.5 kW 50 Hz4.8 – 9 kW 60 HzVariants 12SV 700/1Pumping speed 750 m³/h 50 Hz900 m³/h 60 HzRated motor power 5.5 – 11 kW 50 Hz6.6 – 13.2 kW 60 HzVariants 10SV 1100/1Pumping speed 1,050 m³/h 50 Hz1,250 m³/h 60 HzRated motor power 7.5 – 15 kW 50 Hz9 – 18 kW 60 HzVariants 9Becker VARIAIR SV series 9 models
VARIAIR SV 130/2Pumping speed 140 m³/h 50 Hz140 m³/h 60 HzRated motor power Variants VARIAIR SV 201/2Pumping speed 175 m³/h 50 Hz175 m³/h 60 HzRated motor power Variants VARIAIR SV 130/1Pumping speed 285 m³/h 50 Hz285 m³/h 60 HzRated motor power Variants 
VARIAIR SV 300/2Pumping speed 300 m³/h 50 Hz300 m³/h 60 HzRated motor power Variants VARIAIR SV 201/1Pumping speed 350 m³/h 50 Hz350 m³/h 60 HzRated motor power Variants VARIAIR SV 300/1Pumping speed 640 m³/h 50 Hz640 m³/h 60 HzRated motor power Variants VARIAIR SV 400/1Pumping speed 800 m³/h 50 Hz800 m³/h 60 HzRated motor power Variants VARIAIR SV 500/1Pumping speed 1,000 m³/h 50 Hz1,000 m³/h 60 HzRated motor power Variants VARIAIR SV 700/1Pumping speed 1,180 m³/h 50 Hz1,180 m³/h 60 HzRated motor power Variants Becker VASF series 6 models
VASF 2.50/2Pumping speed 24 m³/h 50 Hz24 m³/h 60 HzRated motor power Variants VASF 2.80/2Pumping speed 45 m³/h 50 Hz45 m³/h 60 HzRated motor power Variants VASF 2.50/1Pumping speed 48 m³/h 50 Hz48 m³/h 60 HzRated motor power Variants VASF 2.120/2Pumping speed 71 m³/h 50 Hz71 m³/h 60 HzRated motor power Variants VASF 2.80/1Pumping speed 90 m³/h 50 Hz90 m³/h 60 HzRated motor power Variants VASF 2.120/1Pumping speed 143 m³/h 50 Hz143 m³/h 60 HzRated motor power Variants Busch SAMOS series 31 models
SAMOS SI 0045 E1Pumping speed 40 m³/h 50 Hz48 m³/h 60 HzRated motor power Variants SAMOS SB 0050 D0Pumping speed 50 m³/h 50 Hz60 m³/h 60 HzRated motor power Variants SAMOS SB 0080 D0Pumping speed 80 m³/h 50 Hz96 m³/h 60 HzRated motor power Variants SAMOS SI 0090 E1Pumping speed 80 m³/h 50 Hz96 m³/h 60 HzRated motor power Variants SAMOS SI 0090 E2Pumping speed 80 m³/h 50 Hz96 m³/h 60 HzRated motor power Variants SAMOS SB 0080 D2Pumping speed 85 m³/h 50 Hz102 m³/h 60 HzRated motor power Variants SAMOS SI 0150 E1Pumping speed 135 m³/h 50 Hz162 m³/h 60 HzRated motor power Variants SAMOS SI 0150 E2Pumping speed 135 m³/h 50 Hz162 m³/h 60 HzRated motor power Variants SAMOS SB 0140 D0Pumping speed 140 m³/h 50 Hz175 m³/h 60 HzRated motor power Variants SAMOS SB 0140 D2Pumping speed 150 m³/h 50 Hz180 m³/h 60 HzRated motor power Variants SAMOS SI 0210 E1Pumping speed 200 m³/h 50 Hz240 m³/h 60 HzRated motor power Variants SAMOS SI 0210 E2Pumping speed 200 m³/h 50 Hz240 m³/h 60 HzRated motor power Variants SAMOS SB 0200 D0Pumping speed 210 m³/h 50 Hz250 m³/h 60 HzRated motor power Variants SAMOS SB 0200 D2Pumping speed 230 m³/h 50 Hz270 m³/h 60 HzRated motor power Variants SAMOS SB 0310 D0Pumping speed 315 m³/h 50 Hz375 m³/h 60 HzRated motor power Variants SAMOS SB 0310 D2Pumping speed 320 m³/h 50 Hz370 m³/h 60 HzRated motor power Variants SAMOS SI 0320 E1Pumping speed 330 m³/h 50 Hz395 m³/h 60 HzRated motor power Variants SAMOS SI 0320 E2Pumping speed 330 m³/h 50 Hz395 m³/h 60 HzRated motor power Variants SAMOS SB 0430 D0Pumping speed 415 m³/h 50 Hz500 m³/h 60 HzRated motor power Variants SAMOS SI 0500 E1Pumping speed 500 m³/h 50 Hz600 m³/h 60 HzRated motor power Variants SAMOS SB 0530 D2Pumping speed 520 m³/h 50 Hz620 m³/h 60 HzRated motor power Variants SAMOS SB 0530 D0Pumping speed 530 m³/h 50 Hz620 m³/h 60 HzRated motor power Variants SAMOS SI 0540 E1Pumping speed 600 m³/h 50 Hz720 m³/h 60 HzRated motor power Variants SAMOS SB 0710 D0Pumping speed 700 m³/h 50 Hz820 m³/h 60 HzRated motor power Variants SAMOS SB 1100 D0Pumping speed 1,050 m³/h 50 Hz1,250 m³/h 60 HzRated motor power Variants SAMOS SB 1100 D2Pumping speed 1,120 m³/h 50 Hz1,340 m³/h 60 HzRated motor power Variants SAMOS SI 1150 E1Pumping speed 1,200 m³/h 50 Hz1,440 m³/h 60 HzRated motor power Variants SAMOS SI 1150 E2Pumping speed 1,200 m³/h 50 Hz1,440 m³/h 60 HzRated motor power Variants SAMOS SB 1400 D0Pumping speed 1,320 m³/h 50 Hz1,580 m³/h 60 HzRated motor power Variants SAMOS SI 1500 E1Pumping speed 1,500 m³/h 50 Hz1,800 m³/h 60 HzRated motor power Variants SAMOS SI 2200 E1Pumping speed 2,200 m³/h 50 Hz2,640 m³/h 60 HzRated motor power Variants Elmo Rietschle G-BH1 series 25 models
G-BH1 2BH1 100Pumping speed Rated motor power 0.2 – 0.25 kW 50 Hz0.23 – 0.29 kW 60 HzVariants 5G-BH1 2BH1 200Pumping speed Rated motor power 0.25 kW 50 Hz0.29 – 0.32 kW 60 HzVariants 4G-BH1 2BH1 300Pumping speed Rated motor power 0.25 – 0.55 kW 50 Hz0.29 – 0.63 kW 60 HzVariants 8G-BH1 2BH1 310Pumping speed Rated motor power 0.55 – 0.7 kW 50 Hz0.63 – 0.83 kW 60 HzVariants 4G-BH1 2BH1 330Pumping speed Rated motor power 0.25 – 0.7 kW 50 Hz0.29 – 0.83 kW 60 HzVariants 9G-BH1 2BH1 400Pumping speed Rated motor power 0.7 – 1.3 kW 50 Hz0.83 – 1.6 kW 60 HzVariants 13G-BH1 2BH1 410Pumping speed Rated motor power 1.75 – 2.5 kW 50 Hz2 – 3 kW 60 HzVariants 10G-BH1 2BH1 430Pumping speed Rated motor power 0.95 – 1.3 kW 50 Hz1.1 – 1.6 kW 60 HzVariants 10G-BH1 2BH1 490Pumping speed Rated motor power 0.95 kW 50 Hz1.1 kW 60 HzVariants 5G-BH1 2BH1 500Pumping speed Rated motor power 0.95 – 2.5 kW 50 Hz1.1 – 3 kW 60 HzVariants 20G-BH1 2BH1 510Pumping speed Rated motor power 3.45 – 4.6 kW 50 Hz4 – 5.3 kW 60 HzVariants 10G-BH1 2BH1 530Pumping speed Rated motor power 1.3 – 2.5 kW 50 Hz1.6 – 3 kW 60 HzVariants 15G-BH1 2BH1 600Pumping speed Rated motor power 1.75 – 4.6 kW 50 Hz2 – 5.3 kW 60 HzVariants 23G-BH1 2BH1 610Pumping speed Rated motor power 2.2 – 8.6 kW 50 Hz2.55 – 9.9 kW 60 HzVariants 32G-BH1 2BH1 630Pumping speed Rated motor power 2.5 – 4.6 kW 50 Hz3 – 5.3 kW 60 HzVariants 18G-BH1 2BH1 640Pumping speed Rated motor power 4 – 8.6 kW 50 Hz4.6 – 9.9 kW 60 HzVariants 15G-BH1 2BH1 690Pumping speed Rated motor power 2.5 – 3.45 kW 50 Hz3 – 4 kW 60 HzVariants 12G-BH1 2BH1 800Pumping speed Rated motor power 4 – 8.6 kW 50 Hz4.6 – 9.9 kW 60 HzVariants 29G-BH1 2BH1 810Pumping speed Rated motor power 7.5 – 17.3 kW 50 Hz8.6 – 19.9 kW 60 HzVariants 18G-BH1 2BH1 830Pumping speed Rated motor power 4 – 8.6 kW 50 Hz4.6 – 9.9 kW 60 HzVariants 29G-BH1 2BH1 900Pumping speed Rated motor power 8.5 – 21.3 kW 50 Hz9.8 – 24.5 kW 60 HzVariants 34G-BH1 2BH1 910Pumping speed Rated motor power 12.6 – 25.3 kW 50 Hz14.5 – 29 kW 60 HzVariants 20G-BH1 2BH1 930Pumping speed Rated motor power 8.5 – 21.3 kW 50 Hz9.8 – 24.5 kW 60 HzVariants 32G-BH1 2BH1 940Pumping speed Rated motor power 17.3 – 25.3 kW 50 Hz19.9 – 29 kW 60 HzVariants 12G-BH1 2BH1 943Pumping speed Rated motor power 17.3 – 25.3 kW 50 Hz19.9 – 29 kW 60 HzVariants 15Elmo Rietschle G-BH2 series 9 models
G-BH2 2BH2 0360-1Pumping speed Rated motor power 2.5 – 6.3 kW 50 Hz3 – 7.3 kW 60 HzVariants 16G-BH2 2BH2 0360-2Pumping speed Rated motor power 4.6 – 12.6 kW 50 Hz5.3 – 14.5 kW 60 HzVariants 17G-BH2 2BH2 0360-3Pumping speed Rated motor power 6.3 – 12.6 kW 50 Hz7.3 – 14.5 kW 60 HzVariants 12G-BH2 2BH2 0540-1Pumping speed Rated motor power 4.6 – 8.6 kW 50 Hz5.3 – 9.9 kW 60 HzVariants 13G-BH2 2BH2 0540-2Pumping speed Rated motor power 8.6 – 17.3 kW 50 Hz9.9 – 19.9 kW 60 HzVariants 13G-BH2 2BH2 0540-3Pumping speed Rated motor power 12.6 – 21.3 kW 50 Hz14.5 – 24.5 kW 60 HzVariants 12G-BH2 2BH2 0780-1Pumping speed Rated motor power 6.3 – 17.3 kW 50 Hz7.3 – 19.9 kW 60 HzVariants 17G-BH2 2BH2 0780-2Pumping speed Rated motor power 12.6 – 25.3 kW 50 Hz14.5 – 29 kW 60 HzVariants 16G-BH2 2BH2 0780-3Pumping speed Rated motor power 17.3 – 25.3 kW 50 Hz19.9 – 28.5 kW 60 HzVariants 12Elmo Rietschle G-BH7 series 15 models
G-BH7 2BH7 210Pumping speed Rated motor power 0.55 – 1 kW 50 Hz0.63 – 1.1 kW 60 HzVariants 8G-BH7 2BH7 220Pumping speed Rated motor power 0.81 – 1.8 kW 50 Hz0.94 – 2 kW 60 HzVariants 10G-BH7 2BH7 310Pumping speed Rated motor power 0.55 – 1.3 kW 50 Hz0.63 – 1.6 kW 60 HzVariants 11G-BH7 2BH7 320Pumping speed Rated motor power 1.3 – 2.5 kW 50 Hz1.6 – 3 kW 60 HzVariants 9G-BH7 2BH7 410Pumping speed Rated motor power 1.3 – 1.8 kW 50 Hz1.6 – 2 kW 60 HzVariants 6G-BH7 2BH7 420Pumping speed Rated motor power 1.8 – 3.45 kW 50 Hz2 – 4 kW 60 HzVariants 12G-BH7 2BH7 510Pumping speed Rated motor power 1.8 – 2.5 kW 50 Hz2 – 3 kW 60 HzVariants 6G-BH7 2BH7 520Pumping speed Rated motor power 2.5 – 4.6 kW 50 Hz3 – 5.3 kW 60 HzVariants 9G-BH7 2BH7 530Pumping speed Rated motor power 4.6 kW 50 Hz5.3 kW 60 HzVariants 3G-BH7 2BH7 610-0APumping speed Rated motor power 2.5 – 3.5 kW 50 Hz3 – 4 kW 60 HzVariants 10G-BH7 2BH7 610-3NPumping speed Rated motor power 2.5 – 4.6 kW 50 Hz3 – 5.3 kW 60 HzVariants 15G-BH7 2BH7 620-0APumping speed Rated motor power 3.45 – 6.3 kW 50 Hz4 – 7.3 kW 60 HzVariants 15G-BH7 2BH7 620-0NPumping speed Rated motor power 3.45 – 6.3 kW 50 Hz4 – 7.3 kW 60 HzVariants 15G-BH7 2BH7 630-0APumping speed Rated motor power 6.3 – 8.6 kW 50 Hz7.3 – 9.9 kW 60 HzVariants 10G-BH7 2BH7 630-0NPumping speed Rated motor power 6.3 – 8.6 kW 50 Hz7.3 – 9.9 kW 60 HzVariants 10Elmo Rietschle G-BH9 series 1 model
G-BH9 2BH9 2300Pumping speed Rated motor power 17.3 – 21.3 kW 50 Hz19.9 – 24.5 kW 60 HzVariants 5Elmo Rietschle G-BH100 series 1 model
G-BH100 2BH1 002Pumping speed 35 m³/h 50 HzRated motor power Variants 2No model matches these filters.
Atlas Copco DBD series 6 models
Atlas Copco DBDt series 17 models
Atlas Copco DBS series 29 models
Atlas Copco DBSt series 12 models
Becker SV series 16 models
Becker VARIAIR SV series 9 models
Becker VASF series 6 models
Busch SAMOS series 31 models
Elmo Rietschle G-BH1 series 25 models
Elmo Rietschle G-BH2 series 9 models
Elmo Rietschle G-BH7 series 15 models
Elmo Rietschle G-BH9 series 1 model
Elmo Rietschle G-BH100 series 1 model
Models that a manufacturer no longer carries in its current range are not part of this overview; they are listed in the manufacturer’s “Outdated models” section.
Operating principle
How a side channel blower works
The impeller turns in the housing without contact. Its blades accelerate the gas in the side channel in the direction of rotation and, by centrifugal force, outwards. The gas enters the impeller again and again and takes up energy each time – so the pressure rises along the channel from the inlet to the outlet.
The drawing shows the basic principle. The designs of the individual manufacturers differ in detail.
- EntryThe gas enters the side channel (B) through the intake channel (A).
- Pressure build-upThe blades of the impeller (C) accelerate the gas again and again – the pressure rises with every pass.
- ExitAt the interrupter (D) the gas is stripped off the impeller and leaves the blower through the outlet port (E).
Key figures
The technology in figures
The ranges result from the current models in our range.
Pumping speed (50 Hz)
24 to 2,200 m³/hin our range
Rated motor power (50 Hz)
0.2 to 25.3 kWin our range
Pressure difference instead of ultimate pressure
For side channel blowers the manufacturers do not state an ultimate pressure but the maximum permissible pressure difference – separately for vacuum operation and pressure operation. It is given in the technical data of the models.
What characterises the technology
Contact-free compression
The impeller does not touch the housing. In some designs it sits directly on the motor shaft.
Vacuum or pressure
The same machine works as a vacuum pump or as a compressor – depending on which side the process is connected to.
Bearings outside
The bearings lie outside the compression chamber. This benefits operational reliability and service life, even at high pressure differences.
Speed control
The speed can be controlled by an external or integrated frequency converter.
Advantages
What speaks for this technology
- Low noise
- Practically maintenance-free
- Reliable and durable
- Robust and lightweight
- Can be installed with the shaft in any position
- Versions for 50 and 60 Hz
- Speed control via frequency converter
- ATEX versions, depending on the series
Applications
Where they work
- Environmental technologyaeration of sewage treatment plants, pond aeration, soil remediation, drying of buildings
- Conveying and handlingpneumatic conveying, lifting and holding, filling of bags, bottles and silos
- Paper and printingpaper processing, sorting of letters and envelope inserting, laser printers
- Industryindustrial vacuum cleaners, plastics industry, textile industry, packaging industry
- Central vacuum systems
- Further applicationsdental suction, gas analysis, degassing of foodstuffs
Frequently asked questions
Questions about side channel blowers
How does a side channel blower work?
An impeller with many blades turns in the housing without contact. The blades accelerate the gas in the side channel again and again; the pressure rises with every pass. At the interrupter the gas is stripped off the impeller and leaves the blower. The drawing in the section Operating principle shows every step.
Vacuum pump, compressor or blower – which is correct?
All three: depending on the manufacturer, the design is called a side channel blower, a side channel compressor or a side channel vacuum pump. The machine generates negative pressure or overpressure – depending on which side the process is connected to.
Why is no ultimate pressure given for side channel blowers?
Because for this design the manufacturers state the maximum permissible pressure difference, separately for vacuum operation and pressure operation. It is given in the technical data of each model.
From which manufacturers does Ehrler & Beck carry this technology?
Currently from Atlas Copco, Becker, Busch and Elmo Rietschle. The series are listed in the section Manufacturers and series.
How do I find the right model?
In the product overview, the filters narrow down the selection by the key figures of the models. For sizing, it is best to tell us the gas to be conveyed, the working pressure and the flow rate you need – we will be glad to advise you.
What do the figures for 50 Hz and 60 Hz mean?
Flow rate and rated motor power depend on the mains frequency. The overview therefore shows both values wherever the manufacturer states them, and the size filters can be switched between 50 Hz and 60 Hz.
Does Ehrler & Beck also supply spare parts and service?
Yes. Ehrler & Beck offers original spare parts and accessories as well as maintenance and repair.
Which model fits your process?
Tell us the gas to be conveyed, the working pressure and the flow rate you need – we will advise you on selection, spare parts and service.
