Helical Rotor Blower(Roots Type)
ARH-S/SP ARH-E/EP Series
Full lineup of helical blowers for a variety of applications
With Premium Efficiency IE3 MotorARH-E/EP SeriesARH-E/EP Series
With IE1/IE2 MotorARH-S/SP SeriesARH-S/SP Series
2
Comprehensive low-noise designThe design suppresses vibration in the low-frequency range where blower noise is generated.
Q Q
Q
What is the difference between helical-type rotors and spur-type rotors?
When the rotors are twisted, does the amount of blown air drop for each rotation?
Because there is only a small gap between the twisted rotors and the rotor housing, is high-precision machining required?
A
Q How do you inspect the twisting of the precision rotors and the curve of the teeth?
(Pulsation diagram)3-lobe helical
3-lobe involute type 3-lobe arc typeShinMaywa helical
rotors have three
lobes twisted in a spiral
shape, so that they
displace the air
continuously to prevent
pulsating noise from
occurring.
A high-precision machine called a "milling machine" is used
for machining the screws and the gears, so that the rotors
are manufactured with high precision and high reliability.
The tips of the rotor teeth
used by ShinMaywa are slim.
Therefore, even though the
rotors are twisted, the amount of
air blown per rotation is more
than spur type blowers.
The shape of the rotor teeth is inspected using 3-dimensional
measuring equipment. Measurement results are output to a
plotter. Thorough quality control is carried out to ensure that the
curvature of the teeth is within the allowable tolerances.
[Processing method]The rotor turns slowly to match
the rotation of the cutter.
The cutter moves forward in
the direction of the arrow while
rotating.
Resultsare output
→
ShinMaywa helical blowers are the latest in roots-type blowers which incorporate low noise technology.We use our outstanding technology to meet the high-level needs of the world of industry by also giving consideration to environmental problems such as noise.
●Rotor processing using a milling machine
● Tooth curvature line
Cutter
2-lobe spur
3-lobe spur
A
A
Theoretical design line
Allowable dimension tolerance
Measurement line
A
The reason why ShinMaywa blower noise suppression is successful is as follows. The main sources of blower noise include
sources such as "pulsating noise of rotor", followed by "gear meshing", and then "bearings". Of particular note is the pulsating
noise (roots noise) generated by the air which is displaced by the rotors. At ShinMaywa we have successfully used "3-lobe helical rotor" to greatly reduce the amount of this pulsating noise. Furthermore, ShinMaywa technology for suppressing sound is
not limited to just the rotors. We have also devised a torsional shape for the teeth gears which drive the rotors.
3
■ Comparison of noise frequencies between ShinMaywa helical blowers and general spur-type blowers
●Blower noise consists of low-frequency range noise and high-frequency range noise.
Data showing the low-noise operation of ShinMaywa helical blowers
For low-frequency noise which is expensive to reduce, our design reduces the noise inside machine chambers by 2dB and outside the machine chambers by about 8 dB compared to spur-type blowers.
A difference
of 3dB doubles the
perceived noise!
A difference of
8dB increases the
perceived noise by
about 7 times.
When installed near the workplace or in apartment blocks, it can greatly reduce the costs of noise-reduction measures.
In the low-frequency range (50 to 160Hz), it can be seen that the noise
volume is higher for spur-type rotors than for helical-type rotors. This is
because noise in the low-frequency range is not absorbed by the glass wool
and leaks outside the machine chamber. The low-noise design of ShinMaywa
helical blowers significantly reduce the amount of noise output in the
low-frequency band, which is the main cause of noise. This technological ability
provides a large difference in the amount of noise in the low-frequency range.
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!!!!!
The blower durability has been improved through the
use of a larger bearing and the lowering of motor speed,
as well as the reduction of temperature rise.
Improved durability
VFD control system permits the motor speed to be
easily changed electrically. When VFD control is used
with the blower, the air flow rate can be varied freely.
Also, by using a suitable control device with the blower,
it is possible to implement automatic control of the
blower. (The controllable range of motor speed depends
upon blower working conditions. When using a VFD
with the blower, consult your nearest dealer.)
※The VFD to be used should be a constant torque
type.
Variable Frequency Driver (VFD) controlled air flow rate
Fluororubber is used for the oil seal. The lubricating
system is protected with the labyrinth seal which is
effective to prevent oil leakage.
Reliable oil seal
The bearing is fixed with a C-type retaining ring. The
timing gear can be disassembled easily by a gear puller.
A ball bearing is employed instead of a roller bearing, to
avoid damaging the inner case during reassembly. Thus,
the blower maintenance has been significantly simplified.
Easy maintenance
10
20
30
40
50
60
70
80
50 100 500 1,000 5,000
8d
B(A)
2d
B(A)
Specifications:Outlet dia. 80mm Output 5.5kW Speed 1,830min-1
4.66m3/min x 40kPaHelical
Helical
Outside machinechamber
Inside machinechamber
Measurement value
Calculated value
Frequency (Hz)
Noise level dB(A)
Spur rotor
Spur rotor
Spur
Helical rotor
Helical rotor
Noise value inside machine chamber
Noise value outside machine chamber
High-frequencyrange
Low-frequencyrange
In the high-frequency range (200 to
5,000Hz), the noise is absorbed by the glass
wool in the wall of the machine chamber for
both helical-type and spur-type rotors.
4
Specifications ARH-S
20
25
32
40
50
65
80
100
ARH20S
ARH25S
ARH32S
ARH40S
ARH50S
ARH65S
ARH80S
ARH100S
121234123412345678912345612345678123456789123456
Q P Q P Q P Q P Q P Q P Q P Q P Q P Q P Q P
0.4・0.75
0.4・0.75・1.5
1.5・2.2・3.7
1.5・2.2・3.7
2.2・3.7・5.5・7.5
3.7・5.5・7.5・11
5.5・7.5・11
0.75・1.5
10kPa 15kPa 20kPa 25kPa 30kPa 35kPa 40kPa 45kPa 50kPa 55kPa 60kPa
0.170.200.240.300.370.460.220.360.500.610.560.630.710.880.991.081.171.271.360.881.091.351.682.082.361.271.782.262.612.923.393.743.972.653.303.714.134.454.785.295.625.963.434.445.195.696.657.93
0.400.450.490.520.580.660.710.951.101.151.171.201.271.331.391.451.551.661.921.51.71.82.02.42.61.92.22.52.93.33.74.04.23.13.64.04.54.75.15.66.06.64.05.05.56.06.88.0
0.140.180.220.270.340.430.170.320.460.570.500.580.670.830.951.041.121.231.320.811.011.271.591.992.281.201.702.172.522.833.323.683.902.543.193.604.024.344.665.225.555.873.304.315.065.566.537.78
0.460.510.530.560.650.750.741.131.221.251.241.281.351.451.501.551.701.822.061.71.82.02.22.62.82.12.42.83.23.64.14.44.73.54.14.55.05.25.56.26.67.34.45.56.26.87.58.9
0.120.160.200.250.320.41 ―0.280.420.530.450.550.630.780.911.001.091.201.280.740.931.191.511.922.211.131.622.072.442.753.263.633.842.433.093.503.914.254.585.165.495.813.174.194.945.446.437.62
0.520.560.580.630.750.84 ―1.181.241.351.261.351.431.501.681.761.892.012.201.81.92.22.52.83.12.22.73.03.43.94.54.85.23.74.55.05.55.96.26.97.47.85.16.26.97.58.59.8
0.100.140.180.230.300.39 ―0.240.380.490.410.500.580.730.870.961.051.161.240.670.861.111.431.842.131.071.531.982.362.673.203.583.772.322.993.403.804.154.495.095.435.743.034.084.835.336.337.47
0.580.610.630.740.860.91 ―1.231.271.421.291.421.501.761.861.962.082.202.332.02.12.52.73.03.32.63.03.33.74.14.95.15.74.35.05.56.06.56.87.57.88.55.56.87.68.29.410.7
0.080.120.160.210.280.37 ― ―0.340.450.370.460.530.680.840.931.031.141.21 ― ―1.041.351.762.061.011.451.892.302.613.153.533.732.212.893.303.694.064.405.035.375.682.903.984.735.236.23 ―
0.650.670.690.830.971.00 ― ―1.301.491.321.491.611.842.022.132.252.392.51 ― ―2.72.93.23.42.83.23.53.94.35.25.56.14.75.56.16.67.17.48.18.59.16.27.48.49.010.3 ―
―0.100.140.190.260.35 ― ― ― ― ― ― ―0.630.800.901.001.111.18 ― ―0.981.281.69 ― ―1.371.792.232.553.093.483.682.092.793.203.573.964.314.975.305.622.773.884.635.136.13 ―
―0.720.750.931.071.10 ― ― ― ― ― ― ―1.992.182.302.412.572.69 ― ―2.93.13.4 ― ―3.43.74.24.65.46.06.55.16.16.67.27.58.08.69.19.76.88.19.29.811.0 ―
163017301940216024002690124014801740191017201840196022102380252026202790300012701400165018502080223011001320155017301960220023502500113013501490163017301830204021502270102012001390149016301830
0.300.330.380.430.510.600.480.620.760.860.830.870.951.161.251.341.421.521.611.271.531.852.232.542.771.642.222.723.123.503.774.114.383.213.814.224.705.025.34 5.746.076.394.295.195.946.447.398.69
0.250.260.280.300.350.400.530.570.600.640.610.640.710.770.830.951.071.151.300.70.91.01.11.21.30.91.21.31.51.71.92.22.41.41.82.12.2 2.3 2.42.83.03.52.32.52.93.33.94.6
0.270.300.350.400.480.570.430.570.710.810.780.820.911.101.191.281.371.461.551.171.431.742.112.452.681.572.122.623.013.373.704.034.293.103.704.114.584.905.225.635.966.314.115.045.796.297.248.54
0.290.300.310.330.400.470.570.620.640.690.660.690.770.870.971.081.191.291.400.81.01.21.31.51.61.11.41.61.82.02.22.32.61.72.12.42.72.83.03.43.74.12.73.03.43.84.45.0
0.240.280.320.370.450.540.380.520.660.760.720.770.861.041.131.221.311.401.491.091.341.641.982.352.591.492.032.532.913.263.623.944.202.993.604.014.474.795.115.525.856.223.944.895.646.147.098.39
0.320.340.350.380.430.500.610.670.690.750.720.760.850.991.121.201.321.401.501.01.21.31.41.71.91.31.61.82.02.22.42.52.82.12.52.83.23.43.54.04.24.63.13.53.94.44.95.4
0.220.250.290.350.420.510.330.470.610.710.670.740.800.991.081.171.261.361.451.021.251.541.872.262.511.411.942.442.813.143.543.874.122.883.503.914.364.685.005.445.776.143.754.745.495.996.948.24
0.350.380.400.410.480.540.640.700.790.900.920.951.031.111.191.281.361.451.641.11.31.41.61.92.11.51.82.02.22.72.83.03.32.42.83.23.63.74.14.64.85.23.44.04.44.95.46.2
0.380.400.440.480.530.600.680.751.001.051.111.141.201.241.281.351.421.501.781.31.41.71.82.12.31.72.02.22.73.13.23.53.72.83.23.64.14.34.65.25.35.83.74.54.95.45.97.1
0.190.220.270.320.390.480.270.410.550.660.600.670.760.931.031.121.211.311.400.951.171.441.762.172.431.341.862.352.713.033.463.794.042.773.403.814.254.574.895.355.686.053.584.585.335.836.788.08
OutletDia.(mm)
Model PulleyNo.
RotorSpeed(min-1)
Standard SettingMotor Output(kW)
Q : Air Flow Rate(m3/min) P : Power Requirements(kW)
ARH-S・ARH-SP Series
5
ARH-S・ARH-SPSeries
Specifications ARH-S
Specifications ARH-SP
125
150
200
ARH125S
ARH125SA
ARH125SF
ARH150S
ARH200S
12345671234567123456123456789101112345678
Q P Q P Q P Q P Q P Q P Q P Q P Q P Q P Q P
7.5・11・15・18.5
11・15・18.5・22
15・18.5・22・30
15・18.5・22・30・37
18.5・22・30・37・45・55
50
65
80
100
ARH50SP
ARH65SP
ARH80SP
ARH100SP
56789456456786789
Q P
10kPa
Q P
15kPa
Q P
20kPa
Q P
25kPa
Q P
30kPa
Q P
35kPa
Q P
40kPa
Q P
45kPa
Q P
50kPa
Q P
55kPa
Q P
60kPa
10kPa 15kPa 20kPa 25kPa 30kPa 35kPa 40kPa 45kPa 50kPa 55kPa 60kPa
1.5・2.2・3.7
1.5・2.2・3.7
3.7・5.5・7.5
5.5・7.5・11
7.588.679.2910.010.712.013.99.9311.012.012.813.715.117.012.913.714.815.917.018.812.913.714.815.917.018.819.921.122.524.126.924.326.730.133.035.237.640.644.0
116012901370146015401710192011601290137014601540171019201000106011301210130014201000106011301210130014201510159016801770194010001100124013601440153016601750
2.53.43.94.24.44.75.13.53.84.14.54.85.56.46.77.17.98.18.59.16.77.17.98.18.59.19.59.910.511.912.25.77.28.310.111.212.013.114.4
7.358.439.069.7710.411.813.69.5010.611.612.413.314.716.712.713.514.615.716.818.612.713.514.615.716.818.619.720.922.323.926.723.726.129.532.434.637.040.043.4
3.44.04.44.65.05.45.94.54.95.35.76.17.08.17.57.98.69.09.510.17.57.98.69.09.510.110.611.111.612.714.48.19.911.313.314.615.717.018.5
7.118.198.839.5310.211.513.49.1410.211.312.013.014.316.412.413.314.415.516.618.412.413.314.415.516.618.419.520.722.123.726.423.125.528.931.834.036.439.442.8
4.34.74.95.15.76.26.85.46.06.56.97.48.49.88.38.79.49.910.511.18.38.79.49.910.511.111.812.412.813.716.610.512.614.316.518.019.420.922.6
6.887.958.599.309.9811.313.28.829.8910.911.612.614.016.212.213.114.115.316.418.212.213.114.115.316.418.219.420.521.923.426.222.625.028.431.333.535.838.842.2
5.05.45.76.06.67.48.26.47.17.78.28.89.911.49.29.710.311.111.612.49.29.710.311.111.612.413.514.315.116.318.812.915.317.319.721.423.124.826.7
6.647.718.379.069.7611.113.08.549.5810.611.312.313.715.912.012.913.915.116.218.012.012.913.915.116.218.019.220.321.723.225.922.124.527.930.833.035.238.241.7
5.86.36.77.17.78.69.77.48.28.99.510.211.413.010.110.811.412.212.813.810.110.811.412.212.813.815.316.417.418.821.415.318.020.322.924.826.828.730.8
6.417.478.138.849.5310.912.78.279.3010.311.012.013.415.711.712.613.714.816.017.811.712.613.714.816.017.819.020.121.523.025.721.624.027.430.332.534.737.641.2
6.77.27.78.18.89.710.98.49.310.110.711.512.914.811.011.712.613.814.616.111.011.712.613.814.616.117.218.319.721.224.017.720.723.326.128.230.532.634.9
6.177.237.918.609.3110.712.58.029.0310.010.711.713.115.511.512.413.514.615.817.711.512.413.514.615.817.718.820.021.322.825.521.123.626.929.832.034.237.140.7
7.68.28.59.210.010.912.29.410.411.312.012.914.316.611.912.714.015.316.518.211.912.714.015.316.518.219.320.421.923.626.920.123.426.329.331.634.236.539.0
5.946.997.678.379.0810.512.37.768.779.7510.411.412.815.211.312.213.214.415.617.511.312.213.214.415.617.518.619.821.122.525.220.723.226.529.431.633.736.640.2
8.59.19.510.211.012.313.210.411.512.513.314.315.918.313.414.415.716.818.120.113.414.415.716.818.120.121.222.524.226.130.222.526.129.232.535.037.940.443.1
5.706.757.448.148.8610.312.17.528.539.4610.211.212.614.911.012.013.014.215.417.311.012.013.014.215.417.318.519.620.922.324.920.322.826.129.031.233.336.139.8
9.410.110.711.312.113.814.511.412.713.714.615.617.419.915.016.117.318.519.822.015.016.117.318.519.822.023.224.726.528.533.624.928.832.135.738.441.544.347.2
5.466.517.217.918.6410.111.8 7.308.319.119.9711.012.314.610.811.812.814.015.217.210.811.812.814.015.217.218.319.420.722.124.719.922.425.728.630.832.9 ― ―
10.311.211.812.513.415.116.212.413.914.915.916.918.921.616.817.818.920.321.623.716.817.818.920.321.623.724.926.728.830.635.427.331.535.038.941.845.1 ― ―
5.236.266.987.678.419.8411.6 ― ― ― ― ― ― ―10.611.612.613.815.017.010.611.612.613.815.017.018.119.220.521.9 ―19.522.025.328.230.4 ― ― ―
11.312.313.013.914.816.518.1 ― ― ― ― ― ― ―18.719.720.822.223.525.518.719.720.822.223.525.526.828.731.133.0 ―29.734.237.942.045.2 ― ― ―
OutletDia.(mm)
Model PulleyNo.
23802520262027903000185020802230173019602200235025001830204021502270
RotorSpeed(min-1)
StandardSettingMotorOutput
OutletDia.(mm)
Model PulleyNo.
RotorSpeed(min-1)
Standard SettingMotor Output(kW)
Q : Air Flow Rate(m3/min) P : Power Requirements(kW)
Q : Air Flow Rate(m3/min) P : Power Requirements(kW)
1.251.341.421.521.612.232.542.773.123.503.774.114.385.345.746.076.39
0.830.951.071.151.301.11.21.31.51.71.92.22.42.42.83.03.5
1.191.281.371.461.552.112.452.683.013.373.704.034.295.225.635.966.31
0.971.081.191.091.401.31.51.61.82.02.22.32.63.03.43.74.1
1.131.221.311.401.491.982.352.592.913.263.623.944.205.115.525.856.22
1.121.201.321.401.501.41.71.92.02.22.42.52.83.54.04.24.6
1.081.171.261.361.451.872.262.512.813.143.543.874.125.005.445.776.14
1.191.281.361.451.641.61.92.12.22.72.83.03.34.14.64.85.2
1.031.121.211.311.401.762.172.432.713.033.463.794.044.895.355.686.05
1.281.351.421.501.781.82.12.32.73.13.23.53.74.65.25.35.8
0.991.081.171.271.361.672.082.362.612.923.393.743.974.775.295.625.96
1.391.451.551.661.922.02.42.62.93.33.74.04.25.15.66.06.6
0.951.041.121.231.321.591.992.282.522.833.323.683.904.665.225.555.87
1.501.551.701.822.062.22.62.83.23.64.14.44.75.56.26.67.3
0.911.001.091.201.281.511.912.212.422.733.263.633.844.585.165.495.81
1.681.761.892.012.202.52.83.13.43.94.54.85.26.26.97.47.8
0.870.961.051.161.241.431.842.132.362.673.203.583.774.495.095.435.74
1.861.962.082.202.332.73.03.33.74.14.95.15.76.87.57.88.5
0.840.931.031.141.211.351.762.062.302.613.153.533.734.405.035.375.68
2.022.132.252.392.512.93.23.43.94.35.25.56.17.48.18.59.1
0.800.901.001.111.18 ― ― ―2.232.553.093.483.684.314.975.305.62
2.182.302.412.572.69 ― ― ―4.24.65.46.06.58.08.69.19.7
(1) The air flow rate (measured according to JIS B8341) indicates the volume of air on the suction side.(2) Air flow rate tolerance: ±5%(3) Blower Rotation Speed is for reference.(4) Consult us for any requirements not included in the table.
Notes:
(1) The air flow rate (measured according to JIS B8341) indicates the volume of air on the suction side.(2) Air flow rate tolerance: ±5%(3) Blower Rotation Speed is for reference.(4) Consult us for any requirements not included in the table.
Notes:
6
0 0.2 0.3 0.40.1
1
2
0.4kW
0.75kW
0.1 0.5
1 2 3 4
0.4kW
0.75kW
1.5kW
0 0.5
1
2
3 4
0.75kW
3.7kW
1.0 1.50.5
4 5 6 7 8 9
1 20
1 2
43 5
31 42
4321 5 6 7 8
7.5kW
1 2 3 4 5 6 7
1 2 3 4 5 6 7
10 14 15 16 17 18 1911 12 137 11 12 13 14 15 16 17 188 9 10
1 2 3 4 5 6
4321 5 6 7 8 9
6 2 3 4 5 6 7 8 9 10 5 6 7 8 9 10 11 12 13 145432
1 2 3 4 5
1.5kW
2.2kW
1.5kW
1 2 3
2.2kW3.7kW
1.5kW
6
2.2kW
3.7kW
5.5kW
11kW
7.5kW
5.5kW
3.7kW5.5kW
11kW
7.5kW
15kW
11kW
18.5kW
7.5kW
11kW
15kW
18.5kW
22kW
15kW
18.5kW
22kW
30kW
0
Air Flow(m3/min)
Air Flow(m3/min)
○:Pulley No.
Discharge Pressure
Air Flow(m3/min)3
○:Pulley No.
○:Pulley No.
Discharge Pressure
Air Flow(m3/min)
Air Flow(m3/min)
○:Pulley No.
Discharge Pressure
○:Pulley No.
Discharge Pressure
Air Flow(m3/min)
○:Pulley No.
Discharge Pressure
Discharge Pressure
Air Flow(m3/min)
○:Pulley No.
Discharge Pressure
Air Flow(m3/min)
○:Pulley No.
Discharge Pressure
Air Flow(m3/min)
○:Pulley No.
Discharge Pressure
Air Flow(m3/min)
○:Pulley No.
Discharge Pressure
Air Flow(m3/min)
○:Pulley No.
Discharge Pressure
10
20
30
40
50
60
10
20
30
40
50
60
10
20
30
40
50
60
10
20
30
40
50
60
10
20
30
40
50
60
10
20
30
40
50
60
10
20
30
40
50
60
10
20
30
40
50
60
10
20
30
40
50
60
10
20
30
40
50
60
10
20
30
40
50
60
kPa kPa kPa
kPa kPa kPa
kPa
kPa kPa
kPa kPa
6
Performance Curve ARH-SARH20S ARH25S ARH32S
ARH40S ARH50S
ARH80S
ARH65S
ARH100S
ARH125SA ARH125SF
ARH125S
7
ARH-S・ARH-SPSeries
2710 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
1 2 3 4 5 6 7 8 9 10 11
22kW
18 20 22 24 26 28 30 32 34 36 38 40 42 44
1 2 3 4 5
18.5kW
4 5 6
2 5431 320.5 1.51.0
4 5 6 7 85 6 7 8 9
7654
6 7 8 9
7.5kW
5.5kW
3.7kW
1.5kW
2.2kW
3.7kW
2.2kW
3.7kW
1.5kW
7.5kW7.5kW
5.5kW
11kW
55kW87
6
45kW
37kW
30kW
22kW
37kW
30kW
18.5kW15kW
○:Pulley No.
Discharge Pressure
○:Pulley No.
Discharge Pressure
Discharge Pressure
Discharge Pressure
○:Pulley No.
Discharge Pressure
○:Pulley No.
Discharge Pressure
Air Flow(m3/min)Air Flow(m3/min)Air Flow(m3/min)
Air Flow(m3/min)
Air Flow(m3/min) Air Flow(m3/min)
○:Pulley No. ○:Pulley No.
10
20
30
40
50
60
10
20
30
40
50
60
60
50
40
30
20
10
60
50
40
30
20
10
60
50
40
30
20
10
60
50
40
30
20
10
kPa kPa
kPa kPakPa
kPa
Performance Curve ARH-SP
ARH150S ARH200S
ARH50SP
ARH100SP
ARH65SP ARH80SP
Notes:(1) The air flow rate indicates the volume of air on the suction side.(2) Air flow rate tolerance: ±5%(3) Consult us for any requirements not included in the table.(4) For indoor use only. Consult us for outdoor applications.(5) Specifications are subject to change without notice.(6) Please prepare IE1 / IE2 motor by yourself.
Since ShinMaywa cannot supply IE1 / IE2 motor due to Japanese regulation.
.
8
(1)
(2)
6 12 11 5 2
9
3
1314
10-2
8-110-1
7-2
7-1
8-2
Notes:
(1) For Models ARH20S, ARH25S, ARH32S, ARH40S and ARH50SP, bearing plate No.3 and rotor
housing No.5 are constructed as one piece.
(2) ARH125SF ∙ 150S ∙ 200S : Rotor is made of FC200 (helical portion) and S45C (shaft portion).
ARH20S–125SA : Helical and shaft are manufactured of FCD500 in one piece parts.
(3) Use Shell Stamina Grease RL2 to replenish grease every three months.
(4) Completely replace gear oil with VG 220 gear oil every three months.
(The blower is shipped with Shell Omara S2G 220.)
(5) Bearings of ARH20S–125S are special ones. Be sure to replace them with genuine ones upon
overhaul. (Never use a commercialize bearings.)
Seal box
• Star-delta starting is available for motors 5.5kW and over.
• Please prepare IE1/IE2 motor by yourself.
Ball bearing
Ball bearing
SS400/SPHC/SPCC
SS400Rotor housing
Sound Levels
Sectional View
Standard Motors(TEFC indoor type, IE1/IE2)
Standard Accessories
[dB(A)] [dB(A)]
ARH20S
ARH25S
ARH32S
ARH40S
ARH50S
ARH65S
ARH80S
ARH100S
ARH125S
ARH125SA
ARH125SF
ARH150S
ARH200S
RotorSpeed(min−1)
PulleyNo.
ModelDischarge Pressure (kPa)
10 20 30 40 50 60
ARH50SP
ARH65SP
ARH100SP
ARH80SP
10 20 30 40 50 60
1
2
1
2
3
4
1
2
3
4
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
1
2
3
4
5
6
7
1
2
3
4
5
6
7
1
2
3
4
5
6
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
1630
1730
1940
2160
2400
2690
1240
1480
1740
1910
1720
1840
1960
2210
2380
2520
2620
2790
3000
1270
1400
1650
1850
2080
2230
1100
1320
1550
1730
1960
2200
2350
2500
1130
1350
1490
1630
1730
1830
2040
2150
2270
1020
1200
1390
1490
1630
1830
1160
1290
1370
1460
1540
1710
1920
1160
1290
1370
1460
1540
1710
1920
1000
1060
1130
1210
1300
1420
1000
1060
1130
1210
1300
1420
1510
1590
1680
1770
1940
1000
1100
1240
1360
1440
1530
1660
1750
23802520262027903000185020802230173019602200235025001830204021502270
56789456456786789
7070717171707072676768707275767777
7171717272707174686970717376777878
7171727272717274697171727477787879
7172727373727374717272737578797979
7272737374737475737474747579797979
7474747575747575737575767680808080
58
60
62
63
63
65
65
66
67
69
66
67
69
70
70
70
71
71
71
63
66
69
70
70
72
66
66
66
67
67
68
70
72
70
71
72
73
74
75
76
77
77
71
72
74
75
76
77
72
72
73
73
74
75
76
72
73
73
73
74
75
77
72
72
73
74
75
76
72
72
73
74
75
76
77
77
79
81
83
79
79
79
79
80
82
84
85
59
61
63
63
64
66
66
67
68
70
67
68
70
71
71
71
71
72
72
64
66
70
70
71
74
67
67
67
68
69
70
71
73
71
71
73
74
75
76
77
78
78
72
73
74
76
77
78
73
73
74
74
75
76
77
74
75
75
75
76
76
79
73
73
74
75
76
77
73
73
74
75
76
77
78
79
80
82
84
79
80
80
80
81
82
85
86
60
62
63
64
65
67
67
68
69
71
68
70
71
71
71
71
72
72
72
66
68
71
71
72
74
68
68
69
69
71
71
72
74
72
73
73
75
76
77
78
78
79
73
74
75
77
78
79
74
74
75
75
76
77
78
75
77
78
78
79
79
80
74
74
75
76
77
78
74
74
75
76
77
78
80
81
81
83
85
81
82
82
82
83
83
86
88
61
63
64
65
66
68
68
69
70
72
69
71
71
71
71
72
72
73
73
67
70
72
72
73
74
68
69
70
71
72
72
73
75
73
74
75
76
76
78
79
79
79
74
76
77
78
79
80
75
75
76
76
77
78
79
76
78
78
79
79
79
81
75
75
76
78
79
80
75
75
76
78
79
80
81
82
82
84
85
82
84
84
84
85
85
87
89
61
63
64
65
66
68
ー70
71
73
70
72
72
72
72
72
73
73
74
69
71
73
73
74
75
69
71
72
73
74
74
74
75
74
75
76
77
78
79
79
79
79
75
76
78
79
80
81
75
76
77
77
78
79
81
77
79
79
80
80
80
82
77
77
78
79
80
81
77
77
78
79
80
81
82
83
83
85
86
84
86
86
86
86
86
88
91
ー64
65
66
67
69
ーーーーーーー73
74
74
74
75
75
ーー74
74
75
75
ー72
73
73
75
75
76
76
75
76
77
78
79
80
80
80
80
76
78
79
80
80
ー76
76
77
78
79
81
82
ーーーーーーー78
78
79
80
81
82
78
78
79
80
81
82
83
84
84
86
87
85
87
87
87
87
ーーー
(3) Blower Rotation Speed is for reference.
0.4
ARH20S
ARH25S
ARH32S
ARH40S
ARH50S
ARH65S
ARH80S
ARH100S
ARH125S
ARH125SF
ARH150S
ARH200S
0.75 1.5 2.2 3.7 5.5 7.5 11 15 18.5 22 30 37 45 55
○ ○○ ○ ○
○ ○○ ○ ○○ ○ ○
○ ○ ○ ○○ ○ ○ ○
○ ○ ○○ ○ ○ ○
ARH125SA ○ ○ ○ ○○ ○ ○ ○○ ○ ○ ○ ○
○ ○ ○ ○ ○ ○
Applicable Motor Output (kW)
○○ ○
○○ ○ ○
○ ○ ○
ARH50SP
Model
ARH65SPARH80SPARH100SP
Applicable Motor Output (kW)1.5
○○
2.2 3.7 5.5 7.5 11
RotorSpeed(min−1)
PulleyNo.
ModelDischarge Pressure (kPa)
・ Common Base ...........................................................................1・ V-pulley, V-belt, Belt Cover.......................................................1・ Pressure Gauge (160 kPa, with gauge cock and R1/4 setscrew)...1
・ Inlet Silencer (with filter)........................................................1
・ Safety Valve (with check valve) .............................................1
Model
9
ARH-S・ARH-SPSeries
Notes:(1) The safety valve discharge outlet of ARH20S and 25S have Rc3/4 and G1 female thread respectively rather than flange.(2) Bolt hole diameter and pitch of the discharge flange comply with JIS B2239 : 10K flange.(3) For indoor use only. Consult us regarding outdoor applications.(4) Dimensions of the blower with the anti-vibration base are shown in parentheses. * The weight excludes the weight of the motor and motor base.(5) L-type inlet silencer specifications (option) for low ceilings are also available.(6) Dimensions are when Japanese-brand motor (previous IE1/IE2) is mounted.
Setup example(L-type inlet silencer specifications)
A
ARH20SARH25SARH32SARH40S
ARH50S
ARH65S
ARH100S
ARH125S
ARH125SA
ARH125SF
ARH150S
ARH200S
3.7~7.5kW
11kW
5325
256228
207
245
281
411
491
551
560
294
400
340
350
460
700
710
800
900
40
100(180)
540
ー
ー 215
ー 300
ー
350
355
400
450
ー
456(511)
741(841)
809(909)
948(1,047)
1,009(1,108)
995(1,094)
1,098(1,197)
1,297(1,396)
1,323(1,422)
1,695(1,793)
1.668(1,866)
22(26)
45(53)
70(79)
100(111)
140(152)
145(160)
170(184)
280(295)
315(332)
800(895)
590(608)
580(598)
G H J
330
470
520
570
700
360
440
290
K
13
15
20
L
110
175
174
221
234
265
270
406
172
165
130
M
164
125
126
189
196
215
260
254
158
245
130
N
124
202
212
288
372
390
370
209
219
173
P
156
228
234
289
395
435
447
18.5
247
221
Q
6
4
S
12
18.5
14
13
V
ー
20
24
26
22
W
ー
135140
185
330
280
12
14
13
T
4
6
U
25
74(70)
78(74)
88(84)
82(78)
91(87)
270(̶)
44(40)
53(51)
B
133(188)
135(235)
137(237)
147(246)
155(254)
143(242)
150(249)
205(303)
274(472)
193(292)
C
430
487(479)
556(548)
636(628)
704(696)
722(714)
980(976)
1,100(1,260)
370(290)
511(521)
788(780)
788
D FE
125(129)
120(124)
138(142)
164(168)
151(155)
266(270)
238(240)
298(300)
260
155
175
210
250
20253240
50
65
100
125
125
125
150
A
200
80
210
155
175
185
ARH50SP
ARH65SP
ARH80SP
ARH100SP
210
212
260
294
340
400
460
540
ー
ー
ー
G H J
ー
741(841)
809(909)
948(1,047)
K
1,009(1,108)
L
995(1,094)
290
330
440
360
M
15
130
175
165
174
N
172
130
125
245
126
P
158
173
202
219
212
Q
209
S
221
T
228
6
W
234
U
247
V
413
18
16
25
20
35
40
90
35
25
4 13
45(53)
70(79)
100(111)
140(152)
145(160)
B
74(70)
78(74)
88(84)
82(78)
91(87)
C
270(̶)
135(235)
137(237)
147(246)
155(254)
D F
143(242)
487(479)
556(548)
636(628)
704(696)
E
722(714)
R
R
120(124)
125(129)
153(157)
164(168)
50
65
100
80
100
ARH80S
566
H N P
B
A
C DE
G GF
JL MK
H N P
S×φT
B
A
C D
E F
JL MK
φUV
*See Notes(2) *See Notes(2)
φW
V
φW
Q×φR
Dimensions
Outlet dia(mm)Model Weight
(kg)
Outlet dia(mm)Model Weight
(kg)
5.5, 7.5kW
11kW
Dimensions with anti-vibration base
20
25
32
40
50
65
80
100
ARH20E
ARH25E
ARH32E
ARH40E
ARH50E
ARH65E
ARH80E
ARH100E
12123451234123456789123456712345678123456789123456
16301730194021802440258027301200144017101860168018201920220023702520269028403020124013901680177018702100239011401350155017701980225024002540117013701520162017101810201021302250100011101280142015501820
0.300.330.380.440.510.540.590.490.670.860.940.830.900.981.161.261.361.451.551.651.321.521.861.972.112.392.771.802.242.633.103.503.934.224.533.273.934.394.695.025.345.956.316.664.535.196.046.767.448.73
Q P
10kPa
Q P
15kPa
Q P
20kPa
Q P
25kPa
Q P
30kPa
Q P
35kPa
Q P
40kPa
Q P
45kPa
Q P
50kPa
Q P
55kPa
Q P
60kPa
0.250.260.250.280.320.340.360.350.410.490.530.460.500.530.630.680.730.790.850.920.580.660.830.890.951.11.30.750.901.01.21.41.61.71.81.31.61.82.02.12.32.62.83.01.51.72.12.42.73.3
0.270.300.350.410.480.530.570.430.610.800.880.780.850.931.101.211.301.401.491.601.241.441.781.892.022.312.681.722.152.542.993.373.844.144.443.173.834.284.594.905.225.846.206.564.425.045.916.647.328.60
0.290.300.300.340.380.410.440.420.500.590.640.560.610.650.760.830.890.961.001.100.730.831.01.11.21.31.60.951.11.31.51.72.02.12.31.72.02.32.52.62.83.23.53.72.02.32.73.13.44.2
0.240.280.320.380.460.500.540.380.550.740.820.720.800.871.051.161.251.351.441.541.171.361.701.821.942.242.611.642.062.462.903.273.774.084.353.073.734.184.484.795.115.766.116.464.294.905.786.527.198.47
0.320.340.350.390.450.480.510.490.590.700.750.660.720.770.890.971.01.11.21.30.881.01.21.31.41.61.91.11.41.61.82.12.42.52.72.02.42.72.93.23.43.84.14.42.52.83.33.84.25.1
0.220.250.300.370.440.480.510.320.490.680.770.670.750.820.991.111.191.291.391.521.101.281.631.741.902.202.531.561.982.382.813.193.693.994.262.973.634.084.384.685.005.656.016.374.174.785.656.407.058.34
0.350.380.400.460.510.540.570.560.670.810.880.770.840.891.01.11.21.31.41.41.01.21.41.51.61.92.21.31.61.82.12.42.83.03.22.42.83.23.43.73.94.44.85.13.03.34.04.55.06.0
0.190.220.280.350.420.450.490.270.430.630.710.620.690.770.941.061.141.241.331.471.031.211.561.681.832.132.471.481.912.292.733.093.603.904.172.873.533.974.294.574.905.545.906.274.054.655.536.266.938.21
0.380.400.460.510.570.600.640.630.750.910.990.870.951.01.21.31.31.41.51.71.21.31.61.71.82.12.41.51.82.12.42.83.23.43.62.73.23.63.94.24.55.05.45.83.43.94.65.25.76.9
0.170.200.260.320.390.430.460.210.390.570.660.570.650.720.891.011.091.211.311.420.961.151.481.631.762.062.401.401.832.222.643.033.523.834.102.783.433.884.194.474.805.455.806.163.934.535.406.146.818.08
0.400.450.510.570.630.670.710.700.851.001.100.971.11.11.31.41.51.61.71.81.31.51.81.92.12.42.71.72.12.42.83.13.63.84.13.03.64.14.44.75.05.76.16.53.94.45.25.96.57.9
0.140.180.240.300.360.410.440.160.330.510.590.520.600.670.840.951.061.161.241.360.891.081.431.561.702.002.321.321.752.152.552.943.453.754.022.683.343.794.084.374.695.355.706.063.814.415.296.026.687.98
0.460.510.560.620.690.730.750.750.931.11.21.11.21.21.41.51.71.81.92.01.51.72.02.22.32.63.01.92.32.63.13.54.04.34.63.44.04.54.95.25.56.36.77.14.44.95.86.57.28.8
0.120.160.220.270.340.390.42ー0.280.460.540.470.550.620.790.921.021.111.211.310.841.031.381.501.631.922.251.241.672.062.482.873.363.673.932.583.243.693.984.274.605.245.606.013.694.295.165.906.567.92
0.520.560.610.680.750.800.85ー1.01.21.31.21.31.41.51.71.81.92.12.21.61.82.22.42.52.83.32.12.52.93.43.84.44.75.03.74.45.05.35.76.16.97.37.94.85.46.47.28.19.7
0.100.140.190.250.320.370.40ー0.230.400.490.420.500.580.740.880.971.061.161.270.770.961.311.431.561.862.181.161.591.982.402.793.293.583.852.493.143.593.884.174.505.145.515.933.574.175.085.796.447.79
0.580.610.660.730.820.860.91ー1.11.31.41.31.41.51.71.82.02.12.22.41.82.02.42.62.73.13.52.32.83.23.74.24.85.15.54.14.85.45.86.26.67.48.18.65.36.07.08.08.810.6
0.080.120.170.230.300.340.37ーー0.340.450.370.460.540.700.840.931.021.101.22ーー1.251.361.491.782.111.081.511.902.322.713.203.533.772.393.043.493.784.074.405.075.445.843.454.044.995.736.32ー
0.650.670.710.800.880.930.98ーー1.41.51.41.51.61.92.02.12.32.42.6ーー2.62.83.03.33.72.53.03.44.04.55.25.55.94.45.25.96.36.77.18.28.79.35.86.57.78.79.6ー
ー0.100.150.210.280.310.35ーーーーーーー0.650.800.880.971.061.17ーー1.171.291.421.71ーー1.431.822.252.633.133.423.692.302.943.393.683.974.325.005.355.743.333.934.885.616.20ー
ー0.720.750.850.940.991.0ーーーーーーー2.02.12.32.42.62.8ーー2.83.03.23.6ーー3.23.74.34.85.56.06.44.75.66.36.87.27.88.89.410.06.37.08.49.410.3ー
0.4・0.75
0.4・0.75・1.5
1.5・2.2・3.7
1.5・2.2・3.7
2.2・3.7・5.5・7.5
3.7・5.5・7.5・11
5.5・7.5・11
0.75・1.5
10
ARH-E・ARH-EP Series
Specifications ARH-EOutletDia.(mm)
Model PulleyNo.
RotorSpeed(min-1)
Standard SettingMotor Output(kW)
Q : Air Flow Rate(m3/min) P : Power Requirements(kW)
* Efficiency class of 0.4kW motors used for ARH20E/ARH25E blowers are not IE3.
ARH-E・ARH-EPSeries
125
150
200
ARH125E
ARH125EA
ARH125EF
ARH150E
ARH200E
12345671234567123456123456789101112345678
1150129013901470157017301960117012801400147016001740199098010601120118012901390980106011201180129013901480157016501770198010101110126013701480157016701770
7.638.709.4110.010.712.013.810.011.012.012.813.715.117.013.014.315.216.117.619.113.014.315.216.117.619.120.221.422.624.227.124.326.730.133.035.237.640.644.0
Q P
10kPa
Q P
15kPa
Q P
20kPa
Q P
25kPa
Q P
30kPa
Q P
35kPa
Q P
40kPa
Q P
45kPa
Q P
50kPa
Q P
55kPa
Q P
60kPa
2.52.93.23.43.74.24.93.13.54.04.34.95.56.84.85.35.65.96.57.14.85.35.65.96.57.17.68.18.69.410.65.77.28.310.111.212.013.114.4
7.448.509.219.7910.511.813.59.7010.711.712.413.414.716.712.714.115.015.917.318.812.714.115.015.917.318.820.021.222.423.926.923.726.129.532.434.637.040.043.4
3.33.84.14.44.85.46.24.14.65.25.66.37.08.56.16.77.17.58.39.06.16.77.17.58.39.09.610.311.011.913.58.19.911.313.314.615.717.018.5
7.258.309.019.5910.311.513.39.4510.511.412.113.214.416.412.513.814.715.617.118.612.513.814.715.617.118.619.720.922.123.726.723.125.528.931.834.036.439.442.8
4.04.65.15.45.86.57.55.15.86.46.97.78.610.37.38.08.59.010.010.97.38.08.59.010.010.911.612.413.314.416.410.512.614.316.518.019.420.922.6
7.058.108.819.3810.111.413.29.2010.211.211.812.914.116.212.213.614.515.316.818.412.213.614.515.316.818.419.520.621.923.526.422.625.028.431.333.535.838.842.2
4.85.56.06.46.97.89.06.16.97.78.29.110.112.18.59.410.010.611.712.88.59.410.010.611.712.813.614.615.617.019.312.915.317.319.721.423.124.826.7
6.857.888.619.189.911.213.08.9510.010.911.612.613.815.912.013.314.215.116.518.212.013.314.215.116.518.219.320.521.723.226.222.124.527.930.833.035.238.241.7
5.66.46.97.38.09.010.47.18.08.99.510.511.713.99.810.811.412.113.414.69.810.811.412.113.414.615.716.817.919.522.315.318.020.322.924.826.828.730.8
6.657.708.539.089.8711.012.78.709.7010.711.312.413.615.811.813.114.014.816.318.011.813.114.014.816.318.019.120.221.523.025.921.624.027.430.332.534.737.641.2
6.37.28.08.49.110.211.78.29.110.110.811.913.215.711.012.112.913.615.016.611.012.112.913.615.016.617.719.020.222.025.117.720.723.326.128.230.532.634.9
6.457.558.358.949.6910.912.58.459.5010.411.112.113.315.611.512.813.714.616.117.811.512.813.714.616.117.818.820.021.322.825.621.123.626.929.832.034.237.140.7
7.18.28.99.410.211.313.09.210.311.412.113.315.017.512.213.514.315.316.818.512.213.514.315.316.818.519.721.122.624.528.020.123.426.329.331.634.236.539.0
6.357.408.168.769.5210.712.38.209.2010.110.811.913.115.311.312.613.514.415.917.511.312.613.514.415.917.518.619.821.122.625.320.723.226.529.431.633.736.640.2
7.99.09.910.411.312.514.410.211.412.613.414.716.419.313.514.815.916.818.520.313.514.815.916.818.520.321.723.324.927.030.922.526.129.232.535.037.940.443.1
6.187.257.988.589.3310.512.27.949.009.9310.611.712.815.011.012.413.314.215.617.311.012.413.314.215.617.318.519.620.922.325.120.322.826.129.031.233.336.139.8
8.79.910.811.412.313.715.811.212.513.814.716.217.921.014.716.317.318.320.222.214.716.317.318.320.222.223.825.527.229.533.824.928.832.135.738.441.544.347.2
6.007.057.828.409.1510.312.07.688.709.6810.411.412.6ー10.812.213.014.015.417.010.812.213.014.015.417.018.319.420.722.124.819.922.425.728.630.832.9ーー
9.510.811.812.413.414.917.112.213.615.016.117.719.4ー16.017.618.819.921.924.116.017.618.819.921.924.125.827.629.532.136.727.331.535.038.941.845.1ーー
5.856.857.648.218.9710.111.8ーーーーーーー10.611.912.813.815.216.810.611.912.813.815.216.818.019.220.521.9ー19.522.025.328.230.4ーーー
10.211.712.713.414.416.118.4ーーーーーーー17.219.020.221.423.726.017.219.020.221.423.726.027.829.831.934.6ー29.734.237.942.045.2ーーー
7.5・11・15・18.5
11・15・18.5・22.2
15・18.5・22・30
15・18.5・22・30・37
18.5・22・30・37・45・55
50
65
80
100
ARH50EP
ARH65EP
ARH80EP
ARH100EP
567894567456786789
237025202690284030201770187021002390177019802250240025401810201021302250
1.261.361.451.551.651.972.112.392.773.103.503.934.224.535.345.956.316.66
Q P
10kPa
Q P
15kPa
Q P
20kPa
Q P
25kPa
Q P
30kPa
Q P
35kPa
Q P
40kPa
Q P
45kPa
Q P
50kPa
Q P
55kPa
Q P
60kPa
0.680.730.790.850.920.890.951.11.31.21.41.61.71.82.32.62.83.0
1.211.301.401.491.601.892.022.312.682.993.373.844.144.445.225.846.206.56
0.830.890.961.01.11.11.21.31.61.51.72.02.12.32.83.23.53.7
1.161.251.351.441.541.821.942.242.612.903.273.774.084.355.115.766.116.46
0.971.01.11.21.31.31.41.61.91.82.12.42.52.73.43.84.14.4
1.111.191.291.391.521.741.902.202.532.813.193.693.994.265.005.656.016.37
1.11.21.31.41.41.51.61.92.22.12.42.83.03.23.94.44.85.1
1.061.141.241.331.471.681.832.132.472.733.093.603.904.174.905.545.906.27
1.31.31.41.51.71.71.82.12.42.42.83.23.43.64.55.05.45.8
1.011.091.211.311.421.631.762.062.402.643.033.523.834.104.805.455.806.16
1.41.51.61.71.81.92.12.42.72.83.13.63.84.15.05.76.16.5
0.951.061.161.241.361.561.702.002.322.552.943.453.754.024.695.355.706.06
1.51.71.81.92.02.22.32.63.03.13.54.04.34.65.56.36.77.1
0.921.021.111.211.311.501.631.922.252.482.873.363.673.934.605.245.606.01
1.71.81.92.12.22.42.52.83.33.43.84.44.75.06.16.97.37.9
0.880.971.061.161.271.431.561.862.182.402.793.293.583.854.505.145.515.93
1.82.02.12.22.42.62.73.13.53.74.24.85.15.56.67.48.18.6
0.840.931.021.101.221.361.491.782.112.322.713.203.533.774.405.075.445.84
2.02.12.32.42.62.83.03.33.74.04.55.25.55.97.18.28.79.3
0.800.880.971.061.171.291.421.71ー2.252.633.133.423.693.683.974.325.00
2.12.32.42.62.83.03.23.6ー4.34.85.56.06.47.88.89.410.0
1.5・2.2・3.7
1.5・2.2・3.7
3.7・5.5・7.5
5.5・7.5・11
11
(1) The air flow rate (measured according to JIS B8341) indicates the volume of air on the suction side.(2) Air flow rate tolerance: ±5%(3) Blower Rotation Speed is for reference.(4) Consult us for any requirements not included in the table.
Notes:
(1) The air flow rate (measured according to JIS B8341) indicates the volume of air on the suction side.(2) Air flow rate tolerance: ±5%(3) Blower Rotation Speed is for reference.(4) Consult us for any requirements not included in the table.
Notes:
OutletDia.(mm)
Model PulleyNo.
RotorSpeed(min-1)
Standard SettingMotor Output(kW)
Specifications ARH-E Q : Air Flow Rate(m3/min) P : Power Requirements(kW)
OutletDia.(mm)
Model PulleyNo.
RotorSpeed(min-1)
Standard SettingMotor Output(kW)
Specifications ARH-EP Q : Air Flow Rate(m3/min) P : Power Requirements(kW)
10
20
30
40
50
60kPa
0 0.2 0.3 0.40.1
1
2
0.4kW
0.75kW
10
20
30
40
50
60kPa
0.1 0.5 0.60.40.30.2
1 2 3 4 5
0.4kW
0.75kW
1.5kW
10
20
30
40
50
60kPa
0 0.5 1.0
1
2
3 4
1.5kW
0.75kW
3.7kW
2.2kW
1.5kW
10
20
30
40
50
60kPa
1.0 1.50.5
1 2 3
4 5 6 7 8 9
3.7kW2.2kW
1.5kW
10
20
30
40
50
60kPa
0.5 2.0 3.01.0 1.5 2.5
1 2
43 5
7
6
3.7kW2.2kW
10
20
30
40
50
60kPa
3.01.0 4.0 5.02.0
432
1
5 6 7 8
7.5kW
5.5kW
10
20
30
40
50
60kPa
5 9 10 11 12 1413 156 7 8
1 2 3 4 5 6 7
7.5kW
11kW
15kW
18.5kW
10
20
30
40
50
60kPa
7 8 9 10 11 12 13 14 15 16 17 18
1 2 3 4 5 6
7
11kW
15kW
18.5kW
22kW
10 14 15 16 17 18 19 2011 12 1310
20
30
40
50
60kPa 1 2 3 4 5 6
30kW
22kW
15kW
18.5kW
3.7kW
10
20
30
40
50
60kPa
3.0 4.0 5.0 6.0 7.02.0
4321 5 6 7 8 9
7.5kW
5.5kW
11kW
10
20
30
40
50
60kPa
3.0 4.0 5.0 6.0 7.0 8.0 9.0
1 2 3 4 5
7.5kW5.5kW
11kW
6
Air Flow(m3/min)
Air Flow(m3/min)
○:Pulley No.
Discharge Pressure
Air Flow(m3/min)
○:Pulley No.
○:Pulley No.
Discharge Pressure
Air Flow(m3/min)
Air Flow(m3/min)
○:Pulley No.
○:Pulley No.○:Pulley No.
Discharge Pressure
Discharge Pressure
Air Flow(m3/min)
Discharge Pressure
Discharge Pressure
Air Flow(m3/min)
○:Pulley No.
Discharge Pressure
Air Flow(m3/min)
○:Pulley No.
Discharge Pressure
Air Flow(m3/min)
○:Pulley No.
Discharge Pressure
Air Flow(m3/min)
○:Pulley No.
Discharge Pressure
Air Flow(m3/min)
○:Pulley No.
Discharge Pressure
12
Performance Curve ARH-EARH20E ARH25E ARH32E
ARH40E ARH50E
ARH80E
ARH65E
ARH100E
ARH125EA ARH125EF
ARH125E
ARH-E・ARH-EPSeries
10
20
30
40
50
60kPa
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
1 2 3 4 5 6 7 8 9 10 11
15kW
18.5kW
22kW
30kW
37kW
10
20
30
40
50
60kPa
18 20 22 24 26 28 30 32 34 36 38 40 42 44
1 2 3 4 5
6
7 8
30kW
37kW
45kW
55kW
22kW18.5kW
1.0 2.01.5 2.5 3.0
60
50
40
30
20
10
kPa
4 5 6 7
3.7kW
2.2kW
1.5kW
2.0 5.04.54.03.53.02.5
60
50
40
30
20
10
kPa 4 5 6 7 8
3.7kW
5.5kW
7.5kW 60
50
40
30
20
10 1.51.0
kPa 5 6 7 8 9
3.7kW
2.2kW
1.5kW
4.0 5.04.5 5.5 6.56.0 7.0
60
50
40
30
20
10
kPa 6 7 8 9
5.5kW
7.5kW
11kW
○:Pulley No.
Discharge Pressure
○:Pulley No.
Discharge Pressure
○:Pulley No.
Discharge Pressure
○:Pulley No.
Discharge Pressure
Air Flow(m3/min)Air Flow(m3/min)Air Flow(m3/min)
Air Flow(m3/min)
Air Flow(m3/min) Air Flow(m3/min)
○:Pulley No. ○:Pulley No.
Discharge Pressure
Discharge Pressure
13
Performance Curve ARH-EP
ARH150E ARH200E
ARH50EP
ARH100EP
ARH65EP ARH80EP
Notes:(1) The air flow rate indicates the volume of air on the suction side.(2) Air flow rate tolerance: ±5%(3) Consult us for any requirements not included in the table.(4) For indoor use only. Consult us for outdoor applications.(5) Specifications are subject to change without notice.
(1)
(2)
6 12 11 5 2
9
3
1314
10-2
8-110-1
7-2
7-1
8-2
Notes:
(1) For Models ARH20E, ARH25E, ARH32E, ARH40E and ARH50EP, bearing plate No.3 and rotor
housing No.5 are constructed as one piece.
(2) ARH125EF ∙ 150E ∙ 200E : Rotor is made of FC200 (helical portion) and S45C (shaft portion).
ARH20E–125EA : Helical and shaft are manufactured of FCD500 in one piece parts.
(3) Use Shell Stamina Grease RL2 to replenish grease every three months.
(4) Completely replace gear oil with VG 220 gear oil every three months.
(The blower is shipped with Shell Omara S2G 220.)
(5) Bearings of ARH20E–125E are special ones. Be sure to replace them with genuine ones upon
overhaul. (Never use a commercialize bearings.)
Seal box
Ball bearing
Ball bearing
Rotor housing
SS400/SPHC/SPCC
SS400
Sound Levels
Sectional View
Standard Motors(TEFC indoor type)
Standard Accessories
14
[dB(A)] [dB(A)]
ARH20E
ARH25E
ARH32E
ARH40E
ARH50E
ARH65E
ARH80E
ARH100E
ARH125E
ARH125EA
ARH125EF
ARH150E
ARH200E
RotorSpeed(min−1)
PulleyNo.
ModelDischarge Pressure (kPa)
10 20 30 40 50 60
ARH50EP
ARH65EP
ARH100EP
ARH80EP
10 20 30 40 50 60
1
2
1
2
3
4
5
1
2
3
4
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
1
2
3
4
5
6
7
1
2
3
4
5
6
7
1
2
3
4
5
6
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
1630
1730
1940
2180
2440
2580
2730
1200
1440
1710
1860
1680
1820
1920
2200
2370
2520
2690
2840
3020
1240
1390
1680
1770
1870
2100
2390
1140
1350
1550
1770
1980
2250
2400
2540
1170
1370
1520
1620
1710
1810
2010
2130
2250
1000
1110
1280
1420
1550
1820
1150
1290
1390
1470
1570
1730
1960
1170
1280
1400
1470
1600
1740
1990
980
1060
1120
1180
1290
1390
980
1060
1120
1180
1290
1390
1480
1570
1650
1770
1980
1010
1110
1260
1370
1480
1570
1670
1770
237025202690284030201770187021002390177019802250240025401810201021302250
567894567456786789
707071717170707173676869717375767777
717172727270717275697071727476777878
717172727271727375707172737577787879
717273737372737475727273747678797979
727273747473747576747474757679797979
7474757575747575ー747576767780808080
58
60
62
63
64
65
66
65
66
67
69
66
67
69
70
70
70
71
71
71
63
66
70
70
70
71
73
66
66
66
67
68
69
71
73
70
72
73
73
74
75
76
77
77
71
72
73
75
76
77
72
72
73
74
75
76
77
72
73
73
73
75
76
77
72
72
73
74
75
76
72
72
73
74
75
76
77
77
79
81
84
79
79
79
79
81
82
84
85
59
61
63
64
65
66
67
66
67
68
70
67
68
70
71
71
71
72
72
72
64
66
70
70
71
72
75
67
67
67
69
70
71
72
74
71
72
74
74
75
76
77
78
78
72
73
74
75
77
78
73
73
74
74
76
77
78
74
75
75
75
76
77
78
73
73
74
75
76
77
73
73
74
75
76
77
78
79
80
82
85
79
80
80
80
82
83
85
86
60
62
63
65
66
67
68
67
68
69
71
68
70
71
71
71
71
72
72
72
66
68
71
71
72
73
75
68
69
69
70
71
72
73
75
72
73
74
75
76
77
78
78
79
73
74
75
76
78
79
74
74
75
75
76
77
78
75
77
78
78
79
79
80
74
74
75
76
77
78
74
74
75
76
77
78
80
81
81
83
86
81
82
82
82
83
84
86
88
61
63
64
66
67
68
69
68
69
70
72
69
71
71
71
71
72
73
73
73
67
70
72
72
73
74
75
68
70
70
72
72
73
74
76
73
74
76
76
76
78
79
79
79
74
75
77
78
79
80
75
75
76
76
77
78
79
76
78
79
79
79
80
81
75
75
76
78
79
80
75
75
76
78
79
80
81
82
82
84
86
82
84
84
84
85
85
87
89
61
63
64
66
67
68
69
ー70
71
73
70
72
72
72
72
72
73
74
74
69
71
73
73
74
75
76
69
71
72
74
74
74
75
76
74
75
77
77
78
79
79
79
79
75
76
77
79
80
81
75
76
77
77
78
79
81
77
79
80
80
80
81
82
77
77
78
79
80
81
77
77
78
79
80
81
82
83
83
85
87
84
86
86
86
86
86
88
91
ー64
65
67
68
69
70
ーーーーーーー73
74
74
75
75
75
ーー74
74
74
75
ーー72
73
74
75
76
76
77
75
76
78
78
79
80
80
80
80
76
77
79
80
80
ー76
76
77
78
79
81
83
ーーーーーーー78
78
79
80
81
82
78
78
79
80
81
82
83
84
84
86
88
85
87
87
87
87
ーーー
Star-delta starting is available for motors 5.5kW and over.
(3) Blower Rotation Speed is for reference.
0.4
ARH20E
ARH25E
ARH32E
ARH40E
ARH50E
ARH65E
ARH80E
ARH100E
ARH125E
ARH125EF
ARH150E
ARH200E
0.75 1.5 2.2 3.7 5.5 7.5 11 15 18.5 22 30 37 45 55
○ ○○ ○ ○
○ ○○ ○ ○○ ○ ○
○ ○ ○ ○○ ○ ○ ○
○ ○ ○○ ○ ○ ○
ARH125EA ○ ○ ○ ○○ ○ ○ ○○ ○ ○ ○ ○
○ ○ ○ ○ ○ ○
Applicable Motor Output (kW)
○○ ○
○○ ○ ○
○ ○ ○
ARH50EP
Model
ARH65EPARH80EPARH100EP
Applicable Motor Output (kW)1.5
○○
2.2 3.7 5.5 7.5 11
RotorSpeed(min−1)
PulleyNo.
ModelDischarge Pressure (kPa)
・Common Base ............................................................................1・V-pulley, V-belt, Belt Cover ........................................................1・Pressure Gauge (160 kPa, with gauge cock and R1/4 setscrew) ....1
・Inlet Silencer (with filter) .........................................................1
・Safety Valve (with check valve) ..............................................1
・IP44-compliant TEFC Motor (indoor type) with base. .............1
Model
15
ARH-E・ARH-EPSeries
Notes:(1) The ARH20E/25E safety valve discharge outlet is a tubular parallel female thread rather than a flange.(2) Bolt hole diameter and pitch of the discharge flange comply with JIS B2239 : 10K flange.(3) This standard motor is Japanese-brand totally enclosed fan cooled motor (indoor type IP44). Use of a special motor or non-Japanese brand may require a different base size.(4) For indoor use only. Consult us regarding outdoor applications.(5) Dimensions of the blower with the anti-vibration base are shown in parentheses. * The weight excludes the weight of the motor and motor base.(6) *E and *R dimensions are the maximum dimensions when equipped with the largest size of standard motor.(7) L-type inlet silencer specifications (option) for low ceilings are also available.
Setup example(L-type inlet silencer specifications)
A
ARH20EARH25EARH32EARH40E
ARH50E
ARH65E
ARH100E
ARH125E
ARH125EA
ARH125EF
ARH150E
ARH200E
3.7~7.5kW
11kW
5325
69(69)83(83)24(28)48(52)
256228
207
245
281
411
491
551
560
294
400
340
350
460
700
710
800
900
40
100(180)
540
ー
ー 215
ー 300
ー
350
355
400
450
ー
456(511)
761(861)
828(928)
967(1,066)
1,029(1,127)
1,162(1,115)
1,117(1,216)
1,297(1,396)
1,324(1,423)
1,695(1,793)
1.669(1,867)
22(26)
45(53)
70(79)
100(111)
140(152)
145(160)
170(184)
280(295)
315(332)
800(895)
590(608)
580(598)
G H J
330
470
520
570
700
360
440
290
K
13
15
20
L
110
175
174
221
234
265
270
406
172
165
130
M
164
125
126
189
196
215
260
254
158
245
130
N
124
202
212
288
372
390
370
209
219
173
P
156
228
234
289
395
435
447
18.5
247
221
Q
6
4
S
12
18.5
14
13
V
ー
20
24
26
22
W
ー
135140
185
330
280
X
12
14
13
T
4
6
U
25
74(70)
78(74)
88(84)
82(78)
91(87)
270
44(40)
44(48)
93(97)
99(103)
115(119)
122(126)
164(168)
217(217)
195(197)
161(81)
53(51)
B
133(188)
135(235)
137(237)
147(246)
155(254)
143(242)
150(249)
205(303)
274(472)
193(292)
C
430
487(479)
556(548)
636(628)
704(696)
722(714)
980(976)
1,100(1,250)
370(290)
511(521)
788(780)
788
D FE
125(129)
120(124)
138(142)
164(168)
151(155)
266(270)
238(240)
298(300)
260
155
175
210
250
20253240
50
65
100
125
125
125
150
XA
200
80
210
155
175
185
ARH50EP
ARH65EP
ARH80EP
ARH100EP
210
212
260
294
340
400
460
540
ー
ー
ー
G H J
ー
761(861)
828(928)
967(1,066)
K
1,029(1,127)
L
1,017(1,115)
290
330
440
360
M
15
130
175
165
174
N
172
130
125
245
126
P
158
173
202
219
212
Q
209
S
221
T
228
6
W
234
U
247
V
413
18
16
4 13
45(53)
70(79)
100(111)
140(152)
145(160)
B
74(70)
78(74)
88(84)
82(78)
91(87)
C
270
135(235)
137(237)
147(246)
155(254)
D F
143(242)
487(479)
556(548)
636(628)
704(696)
E
722(714)
48(52)
44(48)
115(119)
93(97)
99(103)
175194ー229
R
R
229
ー
417
293
291
120(124)
125(129)
153(157)
164(168)
50
65
100
80
100
ARH80E
566
ー
293
291
417
361
ー
ー
490
ー
J P Q
B
A
C DF
H HG
KM NL
J P Q
U×φV
B
A
(*R)
C D
F G
KM NL
φUW
*See Notes(2) *See Notes(2)
φX
W
φX
S×φT
(*E)(*E)
(*R)
Dimensions
Outlet dia(mm)Model Weight
(kg)
Outlet dia(mm)Model Weight
(kg)
5.5, 7.5kW
11kW
Dimensions with anti-vibration base
• Use the blower under discharge pressure less than 60 kPa.
• Outer diameter, hole pitch and hole diameter of discharge flange comply
with JIS B2239 : 10K flange.
• Material... Standard : Steel
Option : Stainless Steel
• Outer diameter, hole pitch and hole diameter of discharge flange comply
with JIS B2239 : 10K flange.
• Consult us for a nominal diameter of 250.
• Outer diameter, hole pitch and hole diameter of discharge flange
comply with JIS B2239 : 10K flange.
nxφd
φC
φC
φC
nxφd
nxφd
φC
Nominal Diameter 20~150mm
Nominal Diameter 200mm
Nominal Diameter 20·25 mm
Nominal Diameter 32~200mm
Outlet Silencer Flexible joint
NominalDiameter(mm)
Weight(kg)
NominalDiameter(mm)
Weight(kg)
NominalDiameter(mm)
Weight(kg)
Type A Outlet Silencer Type B Outlet Silencer
Optional Accessories
16
Packing Size■ARH-S/ARH-E
ARH20S / 20E
ARH25S / 25E
ARH32S / 32E
ARH40S / 40E
ARH50S / 50E
ARH65S / 65E
3.7~7.5kW
11kWARH80S / 80E
Model
(mm)
ARH100S / 100E
ARH125S / 125E
ARH125SA / 125EA
ARH125SF / 125EF
ARH150S / 150E
ARH200S / 200E
■ARH-SP/ARH-EP
ARH65SP / 65EP
ARH80SP / 80EP
3.7~7.5kW
11kWARH100SP / 100EP
Model
(mm)
ARH50SP / 50EP
Height
H
800
820
890
930
1,000
Width
W
530
610
630
700
790
Length
L
750
850
990
1,080
1,200
Height
H
300
800
820
890
930
1,000
1,000
1,150
1,150
1,310
1,310
1,300
Width
W
460
530
610
630
700
790
790
910
970
960
960
1,230
Length
L
520
750
850
990
1,080
1,200
1,200
1,280
1,280
1,520
1,520
1,780
Vertical Outlet Silencer
17
VFD control is available for all models. This feature allows precise control of the air flow rate to accommodate water treatment volumes that vary over season and time.Operation at excessively slow speeds with the VFD may allow high-temperature compressed air to leak into the suction side through Clearance (1) between rotors and Clearance (2) between rotors and housing wall, as illustrated below. This may result in a temperature rise that exceeds the bearing temperature limit, resulting in a blower failure.
Notes:Ⓐ indicates the lower limit of the frequency control range based on the blower temperature rise.
Both blowers (a) and (b) are usable within the range from Ⓐ to 60 Hz. The blowers are not usable below Ⓐbecause the blower temperature will rise.
Differences between ARH-E type equipped with IE3 motor and type equipped with IE1 motor(Points to note if replacing your previous model with the IE3 motor)
・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・
• Motor outer dimensions: The frame size of IE3 motor does not differ from the IE1 motor, so it can be installed to the blower with IE1 motor. However, with the IE3 motor, the diameter and length of motor both tend to be larger. Because of this, the outer dimensions will be larger for some models, and so check the matching dimensions for cables, etc. and make sure that there is no interference with surrounding equipment during installation.
• Motor weight: As mentioned above, the motor size is larger, and so the weight of the motor has also increased as a result. (However, there is no need to reselect the anti vibration rubbers for ShinMaywa helical blowers as a result of this weight increase.)
Significant differences in motor size and weight
Comparison of starting current values between ShinMaywa typical IE1 and IE3 motors
• With the IE3 motor, the rated operating speed will increase. When replacing an IE1 motor with an IE3 motor, the air volume and output power increase as a result of the increased operating speed. Customers using the motor at around the maximum rated current (95% or more of the rated current), and looking into replacing their motors should notify ShinMaywa, as there is a possibility that excessive power may be generated as a result of the increased air volume.
Increase in rated operating speed of motors
• With the IE3 motor, the starting current tends to be larger. As a result of this, it will be necessary to inspect equipment such as circuit protector to make sure they are appropriate. In addition, it is also possible that the capacity of the electromagnetic switch may need to be changed when replacing the motor.
Starting current increased
5.5kW(50Hz/60Hz)
7.5kW(50Hz/60Hz)
* For details, contact to your dealer or ShinMaywa.
206/180 261/217
150/131 203/167
Selecting a VFD-Controlled
Model
Blower (b)
1) Blower torque remains constant when the motor speed is reduced
because of the blower’s constant-torque characteristic.
2) When selecting a VFD, ensure the rated output of the VFD is equal to
or greater than the rated output of the motor.
3) The control range of the VFD starts at 60 Hz regardless of the
frequency of the power source. The control range depends on several
factors including the application, motor output, and model.
Consult us if you require VFD control. We can provide an VFD calculation sheet.
General-purpose motor and VFD(Vector control)
General-purpose motor and VFD(V/F control)
ARH-S・ARH-SP・ARH-E・ARH-EPSeries
ⒶⒶ
ⒷⒷ
Nozzle
Damper
Pellet
• Examples of use
Water treatment Oxygenation of aquaculture ponds
Application example
A Variety of Uses
[MODELS USED]
Used for aeration at sewage treatment plant
ARH125S x 3 units
Used for water purification and for stirring precipitates at water treatment plants.
Used for oxygenation and stirring of the water in aquaculture ponds for various types of fish and shellfish. They are also used for aquariums and fish tanks.
Transport of granules
Helical rotor
BlowerHelical rotor
Blower
Helical rotor
Blower
Used for pneumatic transport of pelletized raw materials such as vinyl chloride and polyethylene. (Suction type is also available)
Specifications and dimensions are subject to change without notice.
http://www.shinmaywa.co.jp/english/products/pump.htm
International Business Group 3-2-43, Shitte, Tsurumi-ku, Yokohama, 230-0003, JapanSales & Marketing Dept., Fluid Div. Phone : +81-45-584-1322 Fax : +81-45-575-2286 E-mail : [email protected]
ShinMaywa Industries, Ltd.
ShinMaywa (America), Ltd. 10737 Gateway West, Suite 240,El Paso, Texas 79935, U.S.A.Phone : +1-915-594-9862Fax : +1-915-594-9866E-mail : [email protected]
ShinMaywa (Asia) Pte. Ltd.8 Burn Road, #14-10 Trivex,Singapore 369977Phone : +65-6224-0728Fax : +65-6224-9678E-mail : [email protected]
ShinMaywa (Shanghai) Trading Co., Ltd. 201107 Building 6, Lane 333, Zhujian Road, Minhang District, Shanghai, ChinaPhone : +86-21-5296-2966Fax : +86-21-5296-2970E-mail : [email protected]
,17. 6 Z-W0019 Printed in Japan1.1