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Control Mode setting can be changed between Multi-Drive Control and Pressure Switch Control.
Under Multi-Drive Control mode, the operation of SRL heads is modified automatically, responding to the need of air.
Control Mode setting can be changed between Multi-Drive Control and Pressure Switch Control. Under Multi-Drive Control mode,
The necessary pressure is maintained producing an optimized, energy-saving performance.
the operation of SRL heads is modified automatically, responding to the need of air. The necessary pressure is maintained producing
an optimized, energy-saving performance.
P-mode
Model Nomenclature
Operation
P-mode Operation
1. Compressor sucks air through an air inlet located at
outer scroll.
Multi-Drive mode Operation
2. Compression chamber becomes smaller with the
Pressure
rotary movement and trapped air is compressed.
Time
3. Compression chamber achieves minimum volume at
the center of the scroll and air is pumped out through
the air outlet located at the center of scroll.
4. The suction, compression & discharging process is
Because the back and right sides are flat and the exhaust extraction is from the top, it's possible to install the compressor with
repeated continuously.
Because the back and right sides are flat and the exhaust extraction is from the top, it's possible to install the compressor
two sides close to walls. Installation space is greatly saved.
*
with two sides close to walls. Installation space is greatly saved.
It is still necessary to secure space for maintenance.
It is still necessary to secure space for maintenance.
Noise level is a low 47dB A
1. No need to change oil and separate the oil from drain. No need to install oil mist filter as well.*
No need to change oil and separate the oil from drain. No need to install oil mist filter as well.
2. Well-designed structure means easy maintenance - for the draining and cleaning of suction filters.
Well-designed structure means easy maintenance - for the draining and cleaning of suction filters.
*
If the suction air is thought to contain oil, it is necessary to install an oil mist filter.
Drain rust is prevented by utilizing an aluminium air tank.
Specifications
If the suction air is thought to contain oil, it is necessary to install an oil mist filter.
Motor
Control
Model
Nominal
Method
Max Pressure
Output
kW
-
MPa
2.2
SRL-2.2MB5A
0.85 (1.0)
3.7
SRL-3.7MB5A
0.85
P-Mode
SRL-5.5MB5A
5.5
0.85 (1.0)
7.7
SRL-7.5MB5A
Multi-
11
SRL-11MB5A
Drive/
0.8 (1.0)
P-Mode
16.5
SRL-15MB5A
22
SRL-22MB5A
Note:
1. Air capacity is converted value at its inlet condition. For guaranteed values, contact your nearest dealer or
HITACHI local representative office.
2. Noise level is measured at 1.5m front, under full-load operation in an anechoic room. It may vary in different
operation conditions or environments.
3. It is necessary to install an air receiver tank for 5.5kW and above models to reduce ON-OFF frequency.
For 2.2/3.7kW models, it is also recommended to install an additional air receiver tank.
Hitachi Australia Pty Ltd
Level 8, 123 Epping Road, Macquarie Park NSW 2113
Locked Bag 2052, North Ryde NSW 2113
TEL: +61 (2) 9888-4100 FAX: +61 (2) 9888-4188
Email: compressors@hitachi.com.au
Website: www.hitachi.com.au/products/business/power/atg.dhtml
Energy saving with Multi-Drive Control
Energy-Saving
SRL - 5.5 MB 5 A
Multi-Drive mode
Operation
E ect
Oil-free SCROLL
Low noise, low vibration
as quiet as a library ! 3.7kW
Compressor
ON-OFF Control Pressure
0.8 MPa
0.85 MPa
1.0 MPa
MPa
PSIG
MPa
PSIG
MPa
-
-
0.8 - 1.0
-
-
-
0.65-0.85 94 -123
-
-
0.8 - 1.0
0.65 - 0.8
94 - 116
-
-
0.8 - 1.0 116 -145
for ASIA/Australia
Frequency
M
P-Mode:
Similar to conventional Pressure Switch Control, if
Max. Pressure
Motor Output kW
maximum pressure is reached, the compressor will
stop operating. When the pressure decreases to the
cut-in pressure, the compressor will restart.
Control Pressure
Multi-Drive Mode:
The compressor is automatically controlled to maintain
Intake
Cut-in Pressure
Orbiting scroll
the necessary operating pressure control pressure .
Unnecessary power consumption is prevented by
Compression
avoiding reaching maximum pressure - and energy
chamber
savings are achieved.
Space saving
Low vibration pencils remain standing on the top during operation.
Easy to use
Capacity at Maximum Pressure
0.8 MPa
0.85 MPa
1.0 MPa
PSIG
L/min
CFM
L/min
CFM
L/min
-
-
116 -145
240
8.5
200
-
-
-
400
14
-
-
600
21
500
116 -145
880
31
-
-
700
1,260
45
-
-
1,000
1,890
67
-
-
1,500
-
-
2520
89
2000
4. External dimensions indicate the package panel ONLY, NOT including protruding objects such as
discharge outlet.
5. Ambient temperature must be between 0 (at which there is no freeze of drain water) and 40°C.
6. 1.0MPa model is optional for all models except for 3.7kW. Refer ( ) for corresponding data.
7. Hitachi air compressors are not designed, intended or approved for breathing air applications.
8. Motors start with full voltage and on 3 phase source.
For further information please contact your nearest sales representative.
P-Mode:
5
50Hz
Similar to conventional Pressure Switch Control, if
type,
MB
type
maximum pressure is reached, the compressor will
stop operating. When the pressure decreases to the
cut-in pressure, the compressor will restart.
Multi-Drive Mode:
The compressor is automatically controlled to maintain
Air
Fixed scroll
the necessary operating pressure (control pressure).
Unnecessary power consumption is prevented by
avoiding reaching maximum pressure - and energy
savings are achieved.
Outlet
External Dimensions
Air Outlet
Air Tank Volume
CFM
-
L
7
18
680 x 640 x 1,030
-
24
Rc 3/8 Stop
Value x 1
750 x 715 x 1,070
24
18
(Necessary for additional
air receiver talk)
25
960 x 660 x 1,190
Rc3/4 x 1
35
-
53
1,280 x 770 x 1,450
R1 x 1
70.6
1,330 x 880 x 1,900
Suction process
Compression process
Discharging process
Noise
Weight
(WxDxH)
Level
mm
Kg
dB(A)
129
46
175
47
184
50
315 (312)
57
350 (344)
59
515 (506)
61
720 (708)
61
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