arh-s/sp arh-e/ep series - 新明和工業株式会社€¦ · · 2017-11-29arh-s/sp arh-e/ep...

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


StandardSettingMotorOutput

OutletDia.（mm）

Model PulleyNo.





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:


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）


○：Pulley No.

Discharge Pressure

Air Flow（m3/min）3

○：Pulley No.

○：Pulley No.

Discharge Pressure



○：Pulley No.

Discharge Pressure

○：Pulley No.

Discharge Pressure


○：Pulley No.

Discharge Pressure

Discharge Pressure


○：Pulley No.

Discharge Pressure


○：Pulley No.

Discharge Pressure


○：Pulley No.

Discharge Pressure


○：Pulley No.

Discharge Pressure


○：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


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）

○：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


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.


・ 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


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)


(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.




* 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


Notes:


Notes:

OutletDia.（mm）

Model PulleyNo.



Specifications ARH-E Q ： Air Flow Rate（m3/min） P ： Power Requirements（kW）

OutletDia.（mm）

Model PulleyNo.



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



○：Pulley No.

Discharge Pressure


○：Pulley No.

○：Pulley No.

Discharge Pressure



○：Pulley No.

○：Pulley No.○：Pulley No.

Discharge Pressure

Discharge Pressure


Discharge Pressure

Discharge Pressure


○：Pulley No.

Discharge Pressure


○：Pulley No.

Discharge Pressure


○：Pulley No.

Discharge Pressure


○：Pulley No.

Discharge Pressure


○：Pulley No.

Discharge Pressure

12

Performance Curve ARH-EARH20E ARH25E ARH32E

ARH40E ARH50E

ARH80E

ARH65E

ARH100E

ARH125EA ARH125EF

ARH125E


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）

○：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.


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


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


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.


・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


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


(kg)


(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

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