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licPumpsHydrau■SW-4A■SW-4A■SW-4S■Electric circuit diagram■Hydraulic circuit diagramilllilOl CooerSMPSeriesEectricPumpsSpecaPumpsManuaPumpsBatteryPumpsSmall-Size Portable Electric Pumps for Single-Acting Cylinders (SMP Series)SMV-33SSL-2BSMP SeriesSPS-7ASPS-7A73MPa1.5MPaSMV-33KRV-3410 to 70 MPa73MPa1.5MPa73MPa1.5MPa■SMP-30B/SMP-40B● A single-acting cylinder is operated by the direction-control valve (SMV-33) and the remote controlled operating switch (SW-4A),　which are attached to the pump. ● At the preset pressure for the pressure switch, the pump can stop automatically and maintain the pressure. If the pressure drops　a few MPa below the preset pressure, it will restart operation automatically.● The pumps can be changed to another type 2 model by changing parts, etc. (For type 2, see page 68.)■SMP-3012B■SMP-30BR/SMP-40BR● A single-acting cylinder is operated by the direction-control valve (SMV-33) and the remote controlled operating switch (SW-4A),　which are attached to the pump. ● Pressure can be adjusted by using the relief valve attached to the pump, and pressure maintenance is also possible (Pressure　adjustable range: 10 to 70 MPa). The hydraulic oil temperature range is 5 to 60 °C. If the relief valve is operated for a long time,　pay attention to the rise in oil temperature.● The pumps can be changed to another type 2 model by changing parts, etc. (For type 2, see page 68.)■SMP-3012BR■SMP-30SK/SMP-40SK● The single-acting cylinder is operated by the remote controlled operating switch (SW-4S).● At the preset pressure for the pressure switch, the pumps can stop automatically and maintain the pressure. If the pressure drops a few　MPa below the preset one, they will restart operation automatically. The cylinder cannot be stopped halfway once it starts being retracted.● The pumps can be changed to another type 1 model by changing parts, etc. (For type 1, see page 68.)■SMP-3012SK■Hydraulic circuit diagram■Hydraulic circuit diagram■Electric circuit diagram■Electric circuit diagramNo.79E since202570When the motor is ON, the piston ofthe single-acting cylinder may extendor the extended piston may not returneven if the directional control valve(SMV-33) is fully open.When the motor is ON, the piston ofthe single-acting cylinder may extendor the extended piston may not returneven if the directional control valve(SMV-33) is fully open.